Alpine ecosystems are under increasing pressure from land‐use change and road construction, resulting in habitat fragmentation and declines in biodiversity and ecosystem function. Ecosystem restoration can mitigate the impacts from human land‐use change by assisting the recovery of natural ecosystems. We developed an assessment framework using established international standards and monitored alpine vegetation recovery within restored zones along a hydropower‐dam road built in 2013 in the Knutshø landscape protected area, Norway. Using data collected in 2016, 2018 and 2021, we compared abiotic variables and vegetation indicators (cover, and community composition) in restored zones against directly adjacent intact zones within three different habitat types. After eight years, wetland habitat had similar cover of plant functional types and abiotic variables within restored and intact zones, while ridge and willow‐heath habitats had more cover of graminoids and less cover of shrubs in restored compared to intact zones. In addition, community composition in restored wetland habitat zones was similar to intact zones, while the community composition of restored zones in ridge and willow‐heath habitats was significantly different from adjacent intact zones. This suggests that restored wetland habitat in our study system is on a trajectory of recovery, but that recovery of other plant community types may require longer periods of time or, in some cases, may not be possible without further intervention because of alternative stable states. Our results underscore the need for long‐term monitoring and adaptive management to insure restoration success in alpine environments.
{"title":"Successful restoration of alpine plant communities depends on habitat type","authors":"Eline Risberget, Dagmar Hagen, Erik T. Aschehoug","doi":"10.1111/njb.03972","DOIUrl":"https://doi.org/10.1111/njb.03972","url":null,"abstract":"Alpine ecosystems are under increasing pressure from land‐use change and road construction, resulting in habitat fragmentation and declines in biodiversity and ecosystem function. Ecosystem restoration can mitigate the impacts from human land‐use change by assisting the recovery of natural ecosystems. We developed an assessment framework using established international standards and monitored alpine vegetation recovery within restored zones along a hydropower‐dam road built in 2013 in the Knutshø landscape protected area, Norway. Using data collected in 2016, 2018 and 2021, we compared abiotic variables and vegetation indicators (cover, and community composition) in restored zones against directly adjacent intact zones within three different habitat types. After eight years, wetland habitat had similar cover of plant functional types and abiotic variables within restored and intact zones, while ridge and willow‐heath habitats had more cover of graminoids and less cover of shrubs in restored compared to intact zones. In addition, community composition in restored wetland habitat zones was similar to intact zones, while the community composition of restored zones in ridge and willow‐heath habitats was significantly different from adjacent intact zones. This suggests that restored wetland habitat in our study system is on a trajectory of recovery, but that recovery of other plant community types may require longer periods of time or, in some cases, may not be possible without further intervention because of alternative stable states. Our results underscore the need for long‐term monitoring and adaptive management to insure restoration success in alpine environments.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"35 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Humid dunes slacks are a highly threatened habitat, listed as vulnerable in the EU habitat red list. Accelerated successional processes in dune systems have resulted in the loss and degradation of ideal conditions for specialist dune slack species, hence the need for conservation management. We investigated the restoration of a dune slack in North Wales, UK, where vegetation and soil removal to 10 cm depth was undertaken to reinstate nutrient-poor, open and damp conditions. We assessed the outcomes of the management for dune slack communities over the 18 years since restoration. We also assessed the differences between restored and unrestored areas of dune slacks. The dunes were restored in the winter of 2004/2005, after which we conducted vegetation surveys in fixed quadrats for most years in the restored and adjacent, un-restored dune slacks. Species diversity and plant community composition changes over time were assessed using Shannon's index, multivariate analysis and indicator species analysis. Comparisons between the restored and unrestored areas of the dune slacks were also made. Ellenberg indicator values (EIVs) were examined to identify potential environmental drivers of post management successional changes. After 18 years the restored dune slacks developed a species-rich and diverse community. compared to the unrestored slacks. The establishment of species occurred rapidly in the first three years, followed by continued but slower increases in species richness and diversity. This is due to the addition of new species without losses of established species. EIVs show no significant difference over time suggesting the restored areas are still at an early stage of succession. Distinct stages of community change since restoration are characterised by different indicator species. Plants are likely to be largely recruited from an existing seed bank. Restoration by turf removal may be suitable for other low nutrient, species rich habitats dependent upon fluctuating groundwater levels.
{"title":"Two decades of dune slack restoration in North Wales: diversity, community and habitat specialists","authors":"Nicola Johansen, Michelle Davis, Paul A. Ashton","doi":"10.1111/njb.04365","DOIUrl":"https://doi.org/10.1111/njb.04365","url":null,"abstract":"Humid dunes slacks are a highly threatened habitat, listed as vulnerable in the EU habitat red list. Accelerated successional processes in dune systems have resulted in the loss and degradation of ideal conditions for specialist dune slack species, hence the need for conservation management. We investigated the restoration of a dune slack in North Wales, UK, where vegetation and soil removal to 10 cm depth was undertaken to reinstate nutrient-poor, open and damp conditions. We assessed the outcomes of the management for dune slack communities over the 18 years since restoration. We also assessed the differences between restored and unrestored areas of dune slacks. The dunes were restored in the winter of 2004/2005, after which we conducted vegetation surveys in fixed quadrats for most years in the restored and adjacent, un-restored dune slacks. Species diversity and plant community composition changes over time were assessed using Shannon's index, multivariate analysis and indicator species analysis. Comparisons between the restored and unrestored areas of the dune slacks were also made. Ellenberg indicator values (EIVs) were examined to identify potential environmental drivers of post management successional changes. After 18 years the restored dune slacks developed a species-rich and diverse community. compared to the unrestored slacks. The establishment of species occurred rapidly in the first three years, followed by continued but slower increases in species richness and diversity. This is due to the addition of new species without losses of established species. EIVs show no significant difference over time suggesting the restored areas are still at an early stage of succession. Distinct stages of community change since restoration are characterised by different indicator species. Plants are likely to be largely recruited from an existing seed bank. Restoration by turf removal may be suitable for other low nutrient, species rich habitats dependent upon fluctuating groundwater levels.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"25 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140075009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The nomenclature and taxonomy of Acarospora molybdina is revised using morphological and molecular data. The new combination Myriospora molybdina is proposed and Acarospora hysgina is recognized as a distinct species while A. brunneola is reduced to synonymy with A. hysgina. In its new circumscription M. molybdina is an arctic species, in Scandinavia only occurring in northernmost Norway. Further localities are reported from Greenland, Russia, Svalbard and the USA (Alaska). Acarospora hysgina is the correct name for a species distributed along the west coast of Sweden and Norway, formerly thought to belong to A. molybdina. Localities are also reported from Canada (New Brunswick), Greenland and the USA (Maine). The following names are lectotypified: Acarospora brunneola, A.molybdina var. confusa, Lecanoraereutica β microcyclos, Parmelia ereutica, P. hysgina and P. molybdina.
利用形态学和分子数据修订了Acarospora molybdina的命名法和分类法。提出了新的组合 Myriospora molybdina，Acarospora hysgina 被认为是一个独特的种，而 A. brunneola 则与 A. hysgina 降为同义。molybdina 是一个北极种，在斯堪的纳维亚半岛仅分布于挪威最北部。格陵兰岛、俄罗斯、斯瓦尔巴特群岛和美国（阿拉斯加）也有分布。Acarospora hysgina 是分布在瑞典和挪威西海岸的一个物种的正确名称，以前被认为属于 A. molybdina。加拿大（新不伦瑞克）、格陵兰岛和美国（缅因州）也有地方报道。以下名称已进行了标本分型：Acarospora brunneola、A. molybdina var. confusa、Lecanora ereutica β microcyclos、Parmelia ereutica、P. hysgina 和 P. molybdina。
{"title":"Myriospora molybdina comb. nov. and the identity of Acarospora hysgina","authors":"Martin Westberg, Mats Wedin, Måns Svensson","doi":"10.1111/njb.04269","DOIUrl":"https://doi.org/10.1111/njb.04269","url":null,"abstract":"The nomenclature and taxonomy of <i>Acarospora molybdina</i> is revised using morphological and molecular data. The new combination <i>Myriospora molybdina</i> is proposed and <i>Acarospora hysgina</i> is recognized as a distinct species while <i>A. brunneola</i> is reduced to synonymy with <i>A. hysgina</i>. In its new circumscription <i>M. molybdina</i> is an arctic species, in Scandinavia only occurring in northernmost Norway. Further localities are reported from Greenland, Russia, Svalbard and the USA (Alaska). <i>Acarospora hysgina</i> is the correct name for a species distributed along the west coast of Sweden and Norway, formerly thought to belong to <i>A. molybdina</i>. Localities are also reported from Canada (New Brunswick), Greenland and the USA (Maine). The following names are lectotypified: <i>Acarospora brunneola</i>, <i>A.</i> <i>molybdina</i> var. <i>confusa</i>, <i>Lecanora</i> <i>ereutica</i> β <i>microcyclos</i>, <i>Parmelia ereutica</i>, <i>P</i>. <i>hysgina</i> and <i>P</i>. <i>molybdina</i>.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"19 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140046648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carlos Daniel M. Ferreira, José Fernando A. Baumgratz, Massimo G. Bovini
Quararibea floribunda, a species endemic to Brazil, is poorly studied taxonomically, and little is known about its ecology and conservation status. Since its publication in 1842, only a few studies have reported on its morphological circumscription, thus remaining as a complex in the taxonomy of Quararibea. In addition, little is known about its geographic distribution, which, according to most authors, is restricted to the Cerrado Biome, characterized mainly by its dry forests. Therefore, we herein review and clarify the morphological circumscription and distribution of Q. floribunda in different vegetation types, designate a lectotype, and recognize its conservation status as vulnerable (VU). The present study is based on analysis of protologues and further pertinent literature. Several herbaria were consulted, both in person and online. Fieldwork was done between 2017 and 2020 in different locations of midwestern and southeastern Brazil, mainly in dry forests of the Cerrado Biome. We confirm that Q. floribunda also occurs in the Atlantic Forest Biome and that it is not exclusive to the Cerrado Biome, as previously thought. All known populations in this biome inhabit humid habitats, and as such, they are closer to the vegetation of the Atlantic Forest Biome than the typical Cerrado dry forests. In addition to assessing the conservation status of Q. floribunda, we evaluate its nomenclatural history, leading to the designation of a lectotype, finally highlighting vegetative and floral diagnostic characters. A distribution map is provided, as well as a morphological comparative analysis between species with foliar domatia in extra-Amazonian Brazil.
{"title":"Untangling the taxonomy and geographic distribution of Quararibea floribunda (Malvaceae: Malvoideae)","authors":"Carlos Daniel M. Ferreira, José Fernando A. Baumgratz, Massimo G. Bovini","doi":"10.1111/njb.04299","DOIUrl":"https://doi.org/10.1111/njb.04299","url":null,"abstract":"<i>Quararibea floribunda</i>, a species endemic to Brazil, is poorly studied taxonomically, and little is known about its ecology and conservation status. Since its publication in 1842, only a few studies have reported on its morphological circumscription, thus remaining as a complex in the taxonomy of <i>Quararibea</i>. In addition, little is known about its geographic distribution, which, according to most authors, is restricted to the Cerrado Biome, characterized mainly by its dry forests. Therefore, we herein review and clarify the morphological circumscription and distribution of <i>Q. floribunda</i> in different vegetation types, designate a lectotype, and recognize its conservation status as vulnerable (VU). The present study is based on analysis of protologues and further pertinent literature. Several herbaria were consulted, both in person and online. Fieldwork was done between 2017 and 2020 in different locations of midwestern and southeastern Brazil, mainly in dry forests of the Cerrado Biome. We confirm that <i>Q. floribunda</i> also occurs in the Atlantic Forest Biome and that it is not exclusive to the Cerrado Biome, as previously thought. All known populations in this biome inhabit humid habitats, and as such, they are closer to the vegetation of the Atlantic Forest Biome than the typical Cerrado dry forests. In addition to assessing the conservation status of <i>Q. floribunda</i>, we evaluate its nomenclatural history, leading to the designation of a lectotype, finally highlighting vegetative and floral diagnostic characters. A distribution map is provided, as well as a morphological comparative analysis between species with foliar domatia in extra-Amazonian Brazil.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"44 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140047053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jayson A. Mansibang, Leonardo C. Udasco, Abigail L. Garrino, Jamie Ann M. Aumentado, Mark Gregory Q. Rule, John Patykowski
A new species of Syzygium (Myrtaceae) from Carranglan, Nueva Ecija, Luzon, Philippines – Syzygium crystalliferum is described and illustrated here as species new to science. Syzygium crystalliferum is similar to S. purpuriflorum by having sessile leaves, cordate base, terminal inflorescence, large flowers and free perianth lobes. However, it is unique in pustules in dried leaves and inflorescence, and having chartaceous-coriaceous leaf texture, coarser secondary leaf venation, individual flowers borne on a distinct pedicel, shorter hypanthium, smaller calyx lobes, and red fruit turning deep purple when ripe. Preliminary assessment of conservation status following IUCN guidelines assign S. crystalliferum as Critically Endangered (CR). This discovery makes the first addition to Philippine Syzygium in over 70 years since Elmer D. Merrill's last taxonomic work on the genus. Additionally, a lectotype for the basionym Eugenia purpuriflora is designated.
本文描述了菲律宾吕宋岛新怡诗夏（Nueva Ecija）卡兰兰（Carranglan）的一个新种--结晶茜草（Syzygium crystalliferum），并对其进行了图解。Syzygium crystalliferum 与 S. purpuriflorum 相似，叶无柄，基部心形，花序顶生，花大，花被裂片离生。不过，它的独特之处在于干叶和花序上有脓疱，叶片质地为纸质-堇色，次生叶脉较粗，单朵花生于明显的花梗上，托杯较短，萼裂片较小，果实红色，成熟时变成深紫色。根据世界自然保护联盟（IUCN）的指导方针，对结晶植物保护状况的初步评估将其定为 "极度濒危"（CR）。自埃尔默-D-梅里尔（Elmer D. Merrill）对菲律宾茜草属进行最后一次分类工作以来，70 多年来菲律宾茜草属首次增加了这一发现。此外，还指定了基名 Eugenia purpuriflora 的讲座模式。
{"title":"Syzygium crystalliferum (Myrtaceae), a new tree species from Carranglan, Nueva Ecija, Philippines and lectotypification of Eugenia purpuriflora Elmer","authors":"Jayson A. Mansibang, Leonardo C. Udasco, Abigail L. Garrino, Jamie Ann M. Aumentado, Mark Gregory Q. Rule, John Patykowski","doi":"10.1111/njb.04227","DOIUrl":"https://doi.org/10.1111/njb.04227","url":null,"abstract":"A new species of <i>Syzygium</i> (Myrtaceae) from Carranglan, Nueva Ecija, Luzon, Philippines – <i>Syzygium crystalliferum</i> is described and illustrated here as species new to science. <i>Syzygium crystalliferum</i> is similar to <i>S. purpuriflorum</i> by having sessile leaves, cordate base, terminal inflorescence, large flowers and free perianth lobes. However, it is unique in pustules in dried leaves and inflorescence, and having chartaceous-coriaceous leaf texture, coarser secondary leaf venation, individual flowers borne on a distinct pedicel, shorter hypanthium, smaller calyx lobes, and red fruit turning deep purple when ripe. Preliminary assessment of conservation status following IUCN guidelines assign <i>S. crystalliferum</i> as Critically Endangered (CR). This discovery makes the first addition to Philippine <i>Syzygium</i> in over 70 years since Elmer D. Merrill's last taxonomic work on the genus. Additionally, a lectotype for the basionym <i>Eugenia purpuriflora</i> is designated.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"1 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139977880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paola Jara-Arancio, Claudia Scognamillo, Paula Vidal, Mary T. Kalin-Arroyo
Cruckshanksia Hook. & Arn. and Oreopolus Schltdl. Rubiaceae (Rubioideae – Coussareeae), endemic genera of Chile and Andean Argentina, have historically been highly taxonomically unstable. Molecular analyses have confirmed Oreopolus as the sister group of Cruckshanksia; however, the relationships among its species are still not resolved because previous studies have not considered all species of the genus and the published topologies have many unsupported nodes. For this reason, we carried out a phylogenetic study with all the species currently recognized by recent revisions, using two nuclear DNA regions and five plastid regions, to elucidate the relationships between species. In addition, the evolutionary history of the group was estimated based on divergence times, and a character reconstruction was performed. The results corroborate that Oreopolus is the sister group of Cruckshanksia. Cruckshanksia is monophyletic and composed of two principal clades. Clade I is composed of Subclade I (C. pumila and C. verticillata) associated with C. montiana; Clade II is composed of Subclade II (C. palmae and C. macrantha) and Subclade III (C. lithiophila and C. hymenodon). With 81% probability the common ancestor of the genus Cruckshanksia had petaloid appendices associated with two independent lines of evolution. The probability that the common ancestor of the Oreopolus‒Cruckshanksia clade had equal calyx lobes is 50%.
Cruckshanksia Hook. & Arn.和 Oreopolus Schltdl.茜草科（Rubioideae - Coussareeae）是智利和阿根廷安第斯山区的特有属，在分类学上一直很不稳定。分子分析已证实 Oreopolus 是 Cruckshanksia 的姊妹群；然而，由于之前的研究没有考虑该属的所有物种，且已发表的拓扑结构中有许多不支持的节点，因此其物种之间的关系仍未得到解决。为此，我们利用两个核 DNA 区域和五个质体区域，对目前最新修订确认的所有物种进行了系统发育研究，以阐明物种之间的关系。此外，还根据分化时间估计了该类群的进化历史，并进行了特征重建。结果证实，Oreopolus 是 Cruckshanksia 的姊妹群。Cruckshanksia 是单系的，由两个主要支系组成。支系 I 由与 C. montiana 相关的支系 I（C. pumila 和 C. verticillata）组成；支系 II 由支系 II（C. palmae 和 C. macrantha）和支系 III（C. lithiophila 和 C. hymenodon）组成。Cruckshanksia属的共同祖先具有瓣状附属物的概率为81%，这与两条独立的进化路线有关。Oreopolus-Cruckshanksia 支系的共同祖先具有相同萼裂片的概率为 50%。
{"title":"Phylogenetics of Cruckshanksia and Oreopolus (Rubiaceae) based on nuclear and plastid DNA sequences","authors":"Paola Jara-Arancio, Claudia Scognamillo, Paula Vidal, Mary T. Kalin-Arroyo","doi":"10.1111/njb.04151","DOIUrl":"https://doi.org/10.1111/njb.04151","url":null,"abstract":"<i>Cruckshanksia</i> Hook. & Arn. and <i>Oreopolus</i> Schltdl. Rubiaceae (Rubioideae – Coussareeae), endemic genera of Chile and Andean Argentina, have historically been highly taxonomically unstable. Molecular analyses have confirmed <i>Oreopolus</i> as the sister group of <i>Cruckshanksia</i>; however, the relationships among its species are still not resolved because previous studies have not considered all species of the genus and the published topologies have many unsupported nodes. For this reason, we carried out a phylogenetic study with all the species currently recognized by recent revisions, using two nuclear DNA regions and five plastid regions, to elucidate the relationships between species. In addition, the evolutionary history of the group was estimated based on divergence times, and a character reconstruction was performed. The results corroborate that <i>Oreopolus</i> is the sister group of <i>Cruckshanksia</i>. <i>Cruckshanksia</i> is monophyletic and composed of two principal clades. Clade I is composed of Subclade I (<i>C. pumila</i> and <i>C. verticillata</i>) associated with <i>C. montiana</i>; Clade II is composed of Subclade II (<i>C. palmae</i> and <i>C. macrantha</i>) and Subclade III (<i>C. lithiophila</i> and <i>C. hymenodon</i>). With 81% probability the common ancestor of the genus <i>Cruckshanksia</i> had petaloid appendices associated with two independent lines of evolution. The probability that the common ancestor of the <i>Oreopolus‒Cruckshanksia</i> clade had equal calyx lobes is 50%.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"16 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139977891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Han Ren, Wei Ding, Chengqun Lv, Yufan Luo, Zhenfei Chen, Junfan Chen, Xu Sun
Previous research has mainly focused on breeding, timber supply, and physiological–biochemical characteristics of Paulownia fortunei. However, there has been limited attention given to its endophytic rhizobia and its potential benefits for plant growth due to a lack of knowledge about the existence of root nodules. In this study, we isolated nine bacterial strains from the root nodules after occasionally discovering the nodular-like structure in uncultivated three year P. fortunei roots and then sequenced the 16S rDNA and nifA sequencing to conduct the bacterial strain identifications. We then determined the carbon use capability and nitrogenase activity of the bacterial strains. The result of 16S rDNA sequencing indicated that the endophytic rhizobia belongs to the genus Agrobacterium, Rhizobium, Herbaspirillum and Burkholderia. The results of nifA sequencing indicated that the nifA gene was sequenced in strain PG-3, PG-5, PG-6, PG-7, PG-8 and PG-9 rather than in strain PG-1, PG-2 and PG-4. Besides, the nitrogenase activity of strain PG-9 was significantly higher than other bacterial strains. Redundancy analysis (RDA) results indicated that fructose, glucose, and sucrose were significantly related to the plant height, diameter, and biomass rather than other carbon sources and nitrogenase activity. Our research revealed that the majority of bacterial strains isolated from P. fortunei exhibited a broad carbon utilization pathway and have the potential to promote plant growth after re-Inoculation. This study aims to investigate the phylogeny of endophytic rhizobia in P. fortunei, and expand the range of non-legume hosts studied for future research on biological N-fixation.
{"title":"Novel finding of Paulownia fortunei endophytic rhizobia in China","authors":"Han Ren, Wei Ding, Chengqun Lv, Yufan Luo, Zhenfei Chen, Junfan Chen, Xu Sun","doi":"10.1111/njb.04304","DOIUrl":"https://doi.org/10.1111/njb.04304","url":null,"abstract":"Previous research has mainly focused on breeding, timber supply, and physiological–biochemical characteristics of <i>Paulownia fortunei</i>. However, there has been limited attention given to its endophytic rhizobia and its potential benefits for plant growth due to a lack of knowledge about the existence of root nodules. In this study, we isolated nine bacterial strains from the root nodules after occasionally discovering the nodular-like structure in uncultivated three year <i>P. fortunei</i> roots and then sequenced the 16S rDNA and <i>nif</i>A sequencing to conduct the bacterial strain identifications. We then determined the carbon use capability and nitrogenase activity of the bacterial strains. The result of 16S rDNA sequencing indicated that the endophytic rhizobia belongs to the genus <i>Agrobacterium</i>, <i>Rhizobium</i>, <i>Herbaspirillum</i> and <i>Burkholderia</i>. The results of <i>nif</i>A sequencing indicated that the <i>nif</i>A gene was sequenced in strain PG-3, PG-5, PG-6, PG-7, PG-8 and PG-9 rather than in strain PG-1, PG-2 and PG-4. Besides, the nitrogenase activity of strain PG-9 was significantly higher than other bacterial strains. Redundancy analysis (RDA) results indicated that fructose, glucose, and sucrose were significantly related to the plant height, diameter, and biomass rather than other carbon sources and nitrogenase activity. Our research revealed that the majority of bacterial strains isolated from <i>P. fortunei</i> exhibited a broad carbon utilization pathway and have the potential to promote plant growth after re-Inoculation. This study aims to investigate the phylogeny of endophytic rhizobia in <i>P. fortunei</i>, and expand the range of non-legume hosts studied for future research on biological N-fixation.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"19 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139981710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mehmet Maruf Balos, Cahit Çeçen, Mehtap Tekşen, Hasan Yıldırım, Veysel Sonay
Fritillaria yalcinii (Liliaceae) is described as a new species from Diyarbakır Province, southeastern Turkey. It is superficially similar to F. carica, F. forbesii, F. minima, F. minuta, F. mughlae and F. sibthorpiana, but differs in several morphological characters, such as leaves, perigon, nectary, filament, stigma and anther. Diagnostic characteristics, a comprehensive description, photographs, geographical distribution, conservation assessment, observations and a distribution map are provided.
Fritillaria yalcinii（百合科）被描述为来自土耳其东南部迪亚巴克尔省的一个新种。它与 F. carica、F. forbesii、F. minima、F. minuta、F. mughlae 和 F. sibthorpiana 表面相似，但在叶片、花被、蜜腺、花丝、柱头和花药等形态特征上存在差异。本报告提供了诊断特征、综合描述、照片、地理分布、保护评估、观察结果和分布图。
{"title":"Fritillaria yalcinii (Liliaceae), a new species from southeastern Turkey","authors":"Mehmet Maruf Balos, Cahit Çeçen, Mehtap Tekşen, Hasan Yıldırım, Veysel Sonay","doi":"10.1111/njb.04220","DOIUrl":"https://doi.org/10.1111/njb.04220","url":null,"abstract":"<i>Fritillaria yalcinii</i> (Liliaceae) is described as a new species from Diyarbakır Province, southeastern Turkey. It is superficially similar to <i>F. carica, F. forbesii, F. minima, F. minuta, F. mughlae</i> and <i>F. sibthorpiana,</i> but differs in several morphological characters, such as leaves, perigon, nectary, filament, stigma and anther. Diagnostic characteristics, a comprehensive description, photographs, geographical distribution, conservation assessment, observations and a distribution map are provided.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"47 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139920136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abigail L. Garrino, Jayson A. Mansibang, Jamie Ann M. Aumentado, Yu Pin Ang, Leonardo C. Udasco, Jean Marie Diego, John Charles Altomonte, Maverick N. Tamayo, Liezel M. Magtoto, Rene Alfred Anton Bustamante
Two new species of Bulbophyllum,B. barcelonae and B. pelseri are described here from the Pantabangan-Carranglan Watershed Forest Reserve, Luzon Island, Philippines. Bulbophyllum barcelonae resembles B. charisae, but differs by having smaller vegetative parts, ovate petals with a rounded apex, and a labellum with two ridges that are strongly angled outwards the adaxial surface, rounded proximal crests, and a canaliculate abaxial surface. Bulbophyllum pelseri resembles B. aureobrunneum but differs by having caducous sheath covering the pseudobulbs, punctulate leaf surface, shorter leaves, absence of transverse callus in median portion of labellum, median portion with short, rounded ridge, rounded apex, and triangular stelidia. These discoveries increase to 207, the known species of Bulbophyllum in the Philippines.
{"title":"Two new species of Bulbophyllum (Orchidaceae, sect. Polymeres) from Pantabangan-Carranglan Watershed Forest Reserve, Luzon Island, Philippines","authors":"Abigail L. Garrino, Jayson A. Mansibang, Jamie Ann M. Aumentado, Yu Pin Ang, Leonardo C. Udasco, Jean Marie Diego, John Charles Altomonte, Maverick N. Tamayo, Liezel M. Magtoto, Rene Alfred Anton Bustamante","doi":"10.1111/njb.04187","DOIUrl":"https://doi.org/10.1111/njb.04187","url":null,"abstract":"Two new species of <i>Bulbophyllum,</i> <i>B</i>. <i>barcelonae</i> and <i>B</i>. <i>pelseri</i> are described here from the Pantabangan-Carranglan Watershed Forest Reserve, Luzon Island, Philippines. <i>Bulbophyllum barcelonae</i> resembles <i>B</i>. <i>charisae</i>, but differs by having smaller vegetative parts, ovate petals with a rounded apex, and a labellum with two ridges that are strongly angled outwards the adaxial surface, rounded proximal crests, and a canaliculate abaxial surface. <i>Bulbophyllum pelseri</i> resembles <i>B</i>. <i>aureobrunneum</i> but differs by having caducous sheath covering the pseudobulbs, punctulate leaf surface, shorter leaves, absence of transverse callus in median portion of labellum, median portion with short, rounded ridge, rounded apex, and triangular stelidia. These discoveries increase to 207, the known species of <i>Bulbophyllum</i> in the Philippines.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"267 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139562328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Magni Olsen Kyrkjeeide, Mari Jokerud, Anne Catriona Mehlhoop, Linn Marie Foldnes Lunde, Marte Fandrem, Anders Lyngstad
Norway launched a national action plan on wetland restoration in 2016. So far, 90% of the restoration effort has been on peatland restoration, with about 140 mires restored so far. There are three main restoration goals stated in the action plan: 1) limit greenhouse gas (GHG) emission, 2) climate adaptation and 3) improved ecological condition. Quantifying the outcome of the restoration actions is necessary to evaluate whether the goals of the action plan are met. A vegetation monitoring protocol was suggested before restoration started and has been implemented at five restoration sites. As the peatland restoration effort in Norway is increasing, it is timely to evaluate if the data currently collected can measure peatland restoration outcome. We evaluate the monitoring protocol based on statistical analyses of the data collected at two sites, describe how indicator species can be identified using generalized composition data used as the basis for classifying habitats in Norway (EcoSyst framework), and suggest the way forward for peatland restoration monitoring in Norway. Data collected according to the monitoring protocol can document changes in species composition at restoration sites, but has limitations when the ecological complexity at the sites increases and reference sites are unavailable. We argue that adjusting the monitoring protocol will: 1) facilitate alignment with existing peatland research; 2) connect better with monitoring programs where data is collected applying EcoSyst framework principles; and 3) enable upscaling to cover the wide variation emerging in peatland restoration.
{"title":"Peatland restoration in Norway – evaluation of ongoing monitoring and identification of plant indicators of restoration success","authors":"Magni Olsen Kyrkjeeide, Mari Jokerud, Anne Catriona Mehlhoop, Linn Marie Foldnes Lunde, Marte Fandrem, Anders Lyngstad","doi":"10.1111/njb.03988","DOIUrl":"https://doi.org/10.1111/njb.03988","url":null,"abstract":"Norway launched a national action plan on wetland restoration in 2016. So far, 90% of the restoration effort has been on peatland restoration, with about 140 mires restored so far. There are three main restoration goals stated in the action plan: 1) limit greenhouse gas (GHG) emission, 2) climate adaptation and 3) improved ecological condition. Quantifying the outcome of the restoration actions is necessary to evaluate whether the goals of the action plan are met. A vegetation monitoring protocol was suggested before restoration started and has been implemented at five restoration sites. As the peatland restoration effort in Norway is increasing, it is timely to evaluate if the data currently collected can measure peatland restoration outcome. We evaluate the monitoring protocol based on statistical analyses of the data collected at two sites, describe how indicator species can be identified using generalized composition data used as the basis for classifying habitats in Norway (EcoSyst framework), and suggest the way forward for peatland restoration monitoring in Norway. Data collected according to the monitoring protocol can document changes in species composition at restoration sites, but has limitations when the ecological complexity at the sites increases and reference sites are unavailable. We argue that adjusting the monitoring protocol will: 1) facilitate alignment with existing peatland research; 2) connect better with monitoring programs where data is collected applying EcoSyst framework principles; and 3) enable upscaling to cover the wide variation emerging in peatland restoration.","PeriodicalId":54716,"journal":{"name":"Nordic Journal of Botany","volume":"42 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139560856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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