Pub Date : 2023-02-19DOI: 10.1080/23818107.2023.2176356
Mériem Marfoua, E. Buisson, S. Bissati-Bouafia, A. Eddoud, Ahmed Benchettouh
ABSTRACT Native plants of the Sahara are remarkably resistant to prolonged droughts and are important sources of forage, food, and medicine. Their regeneration from seeds after strong anthropogenic disturbances is a challenging step toward their conservation and to mitigate desertification. We studied the germination responses of 43 dominant native species of the Sahara desert that could be propagated from seeds for future ecological restoration projects, exploring the effects of cold stratification and temperatures on seed germination. Seeds were stratified at 4°C for 3 days and then tested for germination at 5, 10, 15, 20, 25, 30, 35, and 40°C. While cold stratification negatively affected four species, it improved the germination of 36 species. Five of these species required cold stratification to germinate. Temperatures during the germination trial significantly influenced seed germinability. Twenty-three species (54%) germinated to higher percentages at intermediate temperatures (20 to 30°C) similar to the maximum temperatures of the rainiest months, when germination in the field is high. Thirteen species (30%) also germinated at a higher temperature (40°C). Seven species (16%) germinated best at low temperatures (5 to 10°C). Our results suggest that cold stratification is an efficient and easy treatment to apply prior to sowing seeds in the field for restoration.
{"title":"Improving seed germination of native species for camel rangeland restoration: effects of cold stratification and temperature","authors":"Mériem Marfoua, E. Buisson, S. Bissati-Bouafia, A. Eddoud, Ahmed Benchettouh","doi":"10.1080/23818107.2023.2176356","DOIUrl":"https://doi.org/10.1080/23818107.2023.2176356","url":null,"abstract":"ABSTRACT Native plants of the Sahara are remarkably resistant to prolonged droughts and are important sources of forage, food, and medicine. Their regeneration from seeds after strong anthropogenic disturbances is a challenging step toward their conservation and to mitigate desertification. We studied the germination responses of 43 dominant native species of the Sahara desert that could be propagated from seeds for future ecological restoration projects, exploring the effects of cold stratification and temperatures on seed germination. Seeds were stratified at 4°C for 3 days and then tested for germination at 5, 10, 15, 20, 25, 30, 35, and 40°C. While cold stratification negatively affected four species, it improved the germination of 36 species. Five of these species required cold stratification to germinate. Temperatures during the germination trial significantly influenced seed germinability. Twenty-three species (54%) germinated to higher percentages at intermediate temperatures (20 to 30°C) similar to the maximum temperatures of the rainiest months, when germination in the field is high. Thirteen species (30%) also germinated at a higher temperature (40°C). Seven species (16%) germinated best at low temperatures (5 to 10°C). Our results suggest that cold stratification is an efficient and easy treatment to apply prior to sowing seeds in the field for restoration.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"170 1","pages":"303 - 317"},"PeriodicalIF":1.5,"publicationDate":"2023-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49533837","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}
Pub Date : 2023-01-30DOI: 10.1080/23818107.2023.2172453
D. Lemessa, Befkadu Mewded, Sisay Alemu
ABSTRACT Biodiversity is heterogeneously distributed across terrestrial landscapes. Although the impacts of habitat fragmentation on biodiversity were well studied, whether ecotones support biodiversity conservation or not is less understood, particularly in Sub-Saharan region. Hence, we compared woody species composition between ecotones and the adjoining vegetation types in Ethiopia. For this, firstly, four vegetation types, which are adjacent to each other at different sites, were selected from the vegetation map of Ethiopia. Secondly, a line transect (620 m in length) was laid out on ecotones at 50 m from the edges of the adjacent vegetation types on both sides. Moreover, transects that are equal in length to the ecotone transects were laid out on the adjoining vegetation types perpendicular to ecotone transects. Plots (size: 20 × 20 m each) were arranged on transects with 100 m interval. In total, from nine sites, 27 transect and 162 plots were used to collect data. The dissimilarity in woody species composition, differences in species richness and indicator species between ecotones and adjacent vegetation types were statistically analyzed. The results showed that woody species composition was dissimilar between ecotones and adjoining vegetation types. The species richness was significantly higher in ecotones when compared with the adjacent vegetation types. Moreover, the number of unique and endemic woody species was higher in ecotones than in adjoining vegetation types. The overall results suggest that ecotones promote plant diversity in Sub-Saharan Africa, as well as heterogeneity, and could be the focus of conservation in the face of continuing habitat fragmentation.
{"title":"Vegetation ecotones are rich in unique and endemic woody species and can be a focus of community-based conservation areas","authors":"D. Lemessa, Befkadu Mewded, Sisay Alemu","doi":"10.1080/23818107.2023.2172453","DOIUrl":"https://doi.org/10.1080/23818107.2023.2172453","url":null,"abstract":"ABSTRACT Biodiversity is heterogeneously distributed across terrestrial landscapes. Although the impacts of habitat fragmentation on biodiversity were well studied, whether ecotones support biodiversity conservation or not is less understood, particularly in Sub-Saharan region. Hence, we compared woody species composition between ecotones and the adjoining vegetation types in Ethiopia. For this, firstly, four vegetation types, which are adjacent to each other at different sites, were selected from the vegetation map of Ethiopia. Secondly, a line transect (620 m in length) was laid out on ecotones at 50 m from the edges of the adjacent vegetation types on both sides. Moreover, transects that are equal in length to the ecotone transects were laid out on the adjoining vegetation types perpendicular to ecotone transects. Plots (size: 20 × 20 m each) were arranged on transects with 100 m interval. In total, from nine sites, 27 transect and 162 plots were used to collect data. The dissimilarity in woody species composition, differences in species richness and indicator species between ecotones and adjacent vegetation types were statistically analyzed. The results showed that woody species composition was dissimilar between ecotones and adjoining vegetation types. The species richness was significantly higher in ecotones when compared with the adjacent vegetation types. Moreover, the number of unique and endemic woody species was higher in ecotones than in adjoining vegetation types. The overall results suggest that ecotones promote plant diversity in Sub-Saharan Africa, as well as heterogeneity, and could be the focus of conservation in the face of continuing habitat fragmentation.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49389760","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}
Pub Date : 2023-01-27DOI: 10.1080/23818107.2023.2166581
F. Attar, Arash Sotoodeh, M. Mirtadzadini, Mehdi Daemi, L. Civeyrel
ABSTRACT During a survey of the genus Onosma L. section Protonosma Popov subsect. Rostellatae Riedl, we examined several populations assigned to Onosma rostellata Lehm. (sensu lato) using morphology and molecular evidence. Our morphological review revealed a hairy corolla outside in all specimens, an anther length equal to the filament length, and nectariferous rings hairy or glabrous, as opposed to the descriptions provided in Flora Iranica and Flora of Turkey. We updated itsdescription which were in contradiction with the character states found on the type specimen. Five new taxa were identified among the specimens identified as O. rostellata to date and described based on molecular data and morphological examination: Onosma khatamsazii Attar, Mirtadzadini & Sotoodeh – a new species from Kermanshah province, O. fareghanensis Attar, Mirtadzadini & Sotoodeh – a new species from the mountainous region of the north of Hormozgan province, and Onosma maharluensis Attar, Mirtadzadini & Sotoodeh – a new species including two subspecies, namely “O. maharluensis Attar, Mirtadzadini & Sotoodeh subsp. maharluensis and O. maharluensis subsp. boyer-ahmadica Attar, Sotoodeh & Mirtadzadini” from Iran.
{"title":"New findings in Onosma section Protonosma (Boraginaceae) using morphological and molecular evidence","authors":"F. Attar, Arash Sotoodeh, M. Mirtadzadini, Mehdi Daemi, L. Civeyrel","doi":"10.1080/23818107.2023.2166581","DOIUrl":"https://doi.org/10.1080/23818107.2023.2166581","url":null,"abstract":"ABSTRACT During a survey of the genus Onosma L. section Protonosma Popov subsect. Rostellatae Riedl, we examined several populations assigned to Onosma rostellata Lehm. (sensu lato) using morphology and molecular evidence. Our morphological review revealed a hairy corolla outside in all specimens, an anther length equal to the filament length, and nectariferous rings hairy or glabrous, as opposed to the descriptions provided in Flora Iranica and Flora of Turkey. We updated itsdescription which were in contradiction with the character states found on the type specimen. Five new taxa were identified among the specimens identified as O. rostellata to date and described based on molecular data and morphological examination: Onosma khatamsazii Attar, Mirtadzadini & Sotoodeh – a new species from Kermanshah province, O. fareghanensis Attar, Mirtadzadini & Sotoodeh – a new species from the mountainous region of the north of Hormozgan province, and Onosma maharluensis Attar, Mirtadzadini & Sotoodeh – a new species including two subspecies, namely “O. maharluensis Attar, Mirtadzadini & Sotoodeh subsp. maharluensis and O. maharluensis subsp. boyer-ahmadica Attar, Sotoodeh & Mirtadzadini” from Iran.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"170 1","pages":"285 - 302"},"PeriodicalIF":1.5,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48331138","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}
Pub Date : 2023-01-20DOI: 10.1080/23818107.2023.2168751
Margaux Julien, Lou Delayance, F. Cortes, Lara Dixon, Gérard Filippi, B. Schatz
ABSTRACT In the context of a land development project, we carried out an experimental translocation before the proposal of mitigation hierarchy related to the project. By doing this early, we obtained results on the experimental translocation and thus better inform the measure proposed as part of the project. This project is likely to impact a large population of the plant species Helianthemum marifolium, which has a national protected status in France. We present here the pre-translocation phase, proposing different methodologies to better understand and prepare for a translocation. First, we studied the potential future distribution based on climate factors. Then, we sought to improve our knowledge of the local populations studied. To do this, we carried out pollinator surveys and a study of reproductive success. Finally, we presented the results of germination and cultivation tests, which enabled us to determine the mechanism for breaking dormancy and the most favourable substrate for growing, and we compared potential host sites regarding soil analyses. These different aspects allowed us to determine a protocol to be followed for a more significant translocation of this species. This case study illustrates requirements of the pre-translocation planning and can be used to inform future translocations of Helianthemum marifolium. The case study also presents methods other translocation practitioners can use to improve their protocols in the future.
{"title":"Anticipating plant translocation in land-use projects: a case study of Helianthemum marifolium","authors":"Margaux Julien, Lou Delayance, F. Cortes, Lara Dixon, Gérard Filippi, B. Schatz","doi":"10.1080/23818107.2023.2168751","DOIUrl":"https://doi.org/10.1080/23818107.2023.2168751","url":null,"abstract":"ABSTRACT In the context of a land development project, we carried out an experimental translocation before the proposal of mitigation hierarchy related to the project. By doing this early, we obtained results on the experimental translocation and thus better inform the measure proposed as part of the project. This project is likely to impact a large population of the plant species Helianthemum marifolium, which has a national protected status in France. We present here the pre-translocation phase, proposing different methodologies to better understand and prepare for a translocation. First, we studied the potential future distribution based on climate factors. Then, we sought to improve our knowledge of the local populations studied. To do this, we carried out pollinator surveys and a study of reproductive success. Finally, we presented the results of germination and cultivation tests, which enabled us to determine the mechanism for breaking dormancy and the most favourable substrate for growing, and we compared potential host sites regarding soil analyses. These different aspects allowed us to determine a protocol to be followed for a more significant translocation of this species. This case study illustrates requirements of the pre-translocation planning and can be used to inform future translocations of Helianthemum marifolium. The case study also presents methods other translocation practitioners can use to improve their protocols in the future.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"170 1","pages":"318 - 332"},"PeriodicalIF":1.5,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42532580","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}
Pub Date : 2022-12-28DOI: 10.1080/23818107.2022.2160807
J. Caissard, Inès Adrar, C. Conart, S. N. Paramita, S. Baudino
ABSTRACT Roses have been admired ever since antiquity. They have followed all of the human history for reasons other than just medicine and food, mostly because of their beauty and their fragrance. They have always been used in perfumes, in gardens, and yet again in the cut flower market. Humans have listed more than 25,000 cultivars to this day, while there are only a little over a hundred species in the wild. In this review, we will present the domestication history of roses used for perfumes, and the selection of garden roses and cut rose cultivars. We will also compare the scent of modern roses and wild roses and give the chemical analysis of representative volatile compounds that have been characterized in roses. We will then summarize the biochemical pathways that have been studied in roses at the gene level. We will conclude that scent is not a trait in itself but a multitude of traits driven by many genes. Their alleles could perhaps be used as markers for the selection of new cultivars.
{"title":"Do we really know the scent of roses?","authors":"J. Caissard, Inès Adrar, C. Conart, S. N. Paramita, S. Baudino","doi":"10.1080/23818107.2022.2160807","DOIUrl":"https://doi.org/10.1080/23818107.2022.2160807","url":null,"abstract":"ABSTRACT Roses have been admired ever since antiquity. They have followed all of the human history for reasons other than just medicine and food, mostly because of their beauty and their fragrance. They have always been used in perfumes, in gardens, and yet again in the cut flower market. Humans have listed more than 25,000 cultivars to this day, while there are only a little over a hundred species in the wild. In this review, we will present the domestication history of roses used for perfumes, and the selection of garden roses and cut rose cultivars. We will also compare the scent of modern roses and wild roses and give the chemical analysis of representative volatile compounds that have been characterized in roses. We will then summarize the biochemical pathways that have been studied in roses at the gene level. We will conclude that scent is not a trait in itself but a multitude of traits driven by many genes. Their alleles could perhaps be used as markers for the selection of new cultivars.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"170 1","pages":"77 - 88"},"PeriodicalIF":1.5,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43981146","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}
Pub Date : 2022-12-28DOI: 10.1080/23818107.2022.2160808
H. Amir, Y. Cavaloc, Thomas Crossay, Alexandre Bourles, Simon Gensous, Alexandre Lagrange, V. Burtet-Sarramegna, L. Guentas
ABSTRACT Our knowledge about New Caledonian serpentine ecosystems has increased greatly during the past half-century, mainly thanks to Jaffré’s group. However, research on soil microflora and plant symbionts started only in the nineties and was mainly published during the last two decades. We aim to synthesize these studies, focusing particularly on arbuscular mycorrhizal fungi (AMF). Research on AMF consists firstly of a global and inventory approach aiming to produce a basic but essential lacking knowledge. These studies showed that AMF are abundant in ultramafic soils and concerned nearly all plant species of these ecosystems. Even Ni-hyperaccumulator plants and sedges, generally considered non-mycorrhizal, were found to be functionally colonized by AMF in New Caledonian ultramafic soils. The adaptation of AMF communities to the extreme conditions of these soils led to high levels of metal tolerance (particularly to Ni) and noticeable originality of the taxa. The influence of these symbionts on plant growth and adaptation was assessed in greenhouse and field conditions. An accurate selection of AMF isolates that improve plant growth, and plant metal tolerance was performed. It was demonstrated that combinations of AMF isolates with complementary functional traits showed highly synergistic effects on plant development. Finally, a partnership with a biotechnological company led to the production of an efficient commercial inoculant now used in the ecological restoration of mine-degraded areas. Today studies are focused mainly on the additive effects of AMF and mycorrhiza-helper bacteria.
{"title":"Importance and roles of arbuscular mycorrhizal fungi in New Caledonian ultramafic soils","authors":"H. Amir, Y. Cavaloc, Thomas Crossay, Alexandre Bourles, Simon Gensous, Alexandre Lagrange, V. Burtet-Sarramegna, L. Guentas","doi":"10.1080/23818107.2022.2160808","DOIUrl":"https://doi.org/10.1080/23818107.2022.2160808","url":null,"abstract":"ABSTRACT Our knowledge about New Caledonian serpentine ecosystems has increased greatly during the past half-century, mainly thanks to Jaffré’s group. However, research on soil microflora and plant symbionts started only in the nineties and was mainly published during the last two decades. We aim to synthesize these studies, focusing particularly on arbuscular mycorrhizal fungi (AMF). Research on AMF consists firstly of a global and inventory approach aiming to produce a basic but essential lacking knowledge. These studies showed that AMF are abundant in ultramafic soils and concerned nearly all plant species of these ecosystems. Even Ni-hyperaccumulator plants and sedges, generally considered non-mycorrhizal, were found to be functionally colonized by AMF in New Caledonian ultramafic soils. The adaptation of AMF communities to the extreme conditions of these soils led to high levels of metal tolerance (particularly to Ni) and noticeable originality of the taxa. The influence of these symbionts on plant growth and adaptation was assessed in greenhouse and field conditions. An accurate selection of AMF isolates that improve plant growth, and plant metal tolerance was performed. It was demonstrated that combinations of AMF isolates with complementary functional traits showed highly synergistic effects on plant development. Finally, a partnership with a biotechnological company led to the production of an efficient commercial inoculant now used in the ecological restoration of mine-degraded areas. Today studies are focused mainly on the additive effects of AMF and mycorrhiza-helper bacteria.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"170 1","pages":"449 - 458"},"PeriodicalIF":1.5,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49170014","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}
Pub Date : 2022-12-21DOI: 10.1080/23818107.2022.2156600
P. Shi, L. Wang, Ü. Niinemets, Yabing Jiao, K. Niklas
ABSTRACT Stomatal density (SD) is important to photosynthetic rates. However, it is time-consuming to measure SD. Here, we provide a method for estimating SD based on the scaling relationship between SD and mean nearest neighbour distance (MNND) of sampled stomatal centres. 397 leaves from eight Magnoliaceae species were used for this study. For each leaf, three 1.2 mm × 0.9 mm lamina sections, positioned equidistantly between leaf left margin and midrib, were examined (in total 1189 sections). SD and MNND were calculated for each section. Regression protocols were used to test for a negative SD vs. MNND scaling relationship at the species and family levels. Additionally, 10 to 200 stomata from each section were randomly sampled to check for the prediction accuracy of SD using the SD vs MNND scaling relationship. There were significant differences in SD among the different lamina positions for 7 of 8 species. The inverse SD vs MNND scaling relationship was validated at the species and family levels. For the pooled data, the MNND values using 14, 25 and 50 stomata accounted for >80%, 85% and 90% of the variance in SD on a log-log scale, respectively. SD was characterized by high interspecific variability, and within-leaf variability, decreasing from the position near the midrib to that near the leaf margin. SD scaled inversely with MNND for the eight species. Thus, using the rapidly estimated trait MNND significantly simplifies and expedites the estimation of SD.
{"title":"Estimation of stomatal density of leaves with hierarchical reticulate venation","authors":"P. Shi, L. Wang, Ü. Niinemets, Yabing Jiao, K. Niklas","doi":"10.1080/23818107.2022.2156600","DOIUrl":"https://doi.org/10.1080/23818107.2022.2156600","url":null,"abstract":"ABSTRACT Stomatal density (SD) is important to photosynthetic rates. However, it is time-consuming to measure SD. Here, we provide a method for estimating SD based on the scaling relationship between SD and mean nearest neighbour distance (MNND) of sampled stomatal centres. 397 leaves from eight Magnoliaceae species were used for this study. For each leaf, three 1.2 mm × 0.9 mm lamina sections, positioned equidistantly between leaf left margin and midrib, were examined (in total 1189 sections). SD and MNND were calculated for each section. Regression protocols were used to test for a negative SD vs. MNND scaling relationship at the species and family levels. Additionally, 10 to 200 stomata from each section were randomly sampled to check for the prediction accuracy of SD using the SD vs MNND scaling relationship. There were significant differences in SD among the different lamina positions for 7 of 8 species. The inverse SD vs MNND scaling relationship was validated at the species and family levels. For the pooled data, the MNND values using 14, 25 and 50 stomata accounted for >80%, 85% and 90% of the variance in SD on a log-log scale, respectively. SD was characterized by high interspecific variability, and within-leaf variability, decreasing from the position near the midrib to that near the leaf margin. SD scaled inversely with MNND for the eight species. Thus, using the rapidly estimated trait MNND significantly simplifies and expedites the estimation of SD.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"170 1","pages":"269 - 277"},"PeriodicalIF":1.5,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41343300","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}
Pub Date : 2022-12-16DOI: 10.1080/23818107.2022.2156601
H. LANGE-BERTALOT, B. Van de Vijver
{"title":"Revision of the Nitzschia sigma complex (Bacillariophyta), a frequent cosmopolitan species in disguise with the description of two new species","authors":"H. LANGE-BERTALOT, B. Van de Vijver","doi":"10.1080/23818107.2022.2156601","DOIUrl":"https://doi.org/10.1080/23818107.2022.2156601","url":null,"abstract":"","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47278153","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}
Pub Date : 2022-12-12DOI: 10.1080/23818107.2022.2154839
Mathias Fontez, Aurélie Bony, F. Nicolè, S. Moja, F. Jullien
ABSTRACT Lavandula angustifolia Mill. or true lavender is an emblematic plant from dry and calcareous hills of the south of France. Lavender essential oils obtained from inflorescences harvested at bloom stage are mainly composed of monoterpenes and few sesquiterpenes. The characteristic lavender smell is due to linalool and linalyl acetate that represent more than half of the emitted volatile organic compound (VOC) quantity. These monoterpenoids are derived from plastidial pathway precursors. The regulation of this pathway in lavender is mainly managed by the successive expression of two DXS during flower development. In the light of 10 years of published data on lavender, it appears that biochemical pathways of main terpenes are mostly depicted. Several transcriptomic libraries are available and a genome at chromosome scale has been assembled and molecular markers developed. The diversity of lavender terpenes and their biosynthesis are reviewed with additional original data regarding the anatomical glandular structures and expression of genes involved in IPP biosynthesis.
{"title":"Lavandula angustifolia Mill. a model of aromatic and medicinal plant to study volatile organic compounds synthesis, evolution and ecological functions","authors":"Mathias Fontez, Aurélie Bony, F. Nicolè, S. Moja, F. Jullien","doi":"10.1080/23818107.2022.2154839","DOIUrl":"https://doi.org/10.1080/23818107.2022.2154839","url":null,"abstract":"ABSTRACT Lavandula angustifolia Mill. or true lavender is an emblematic plant from dry and calcareous hills of the south of France. Lavender essential oils obtained from inflorescences harvested at bloom stage are mainly composed of monoterpenes and few sesquiterpenes. The characteristic lavender smell is due to linalool and linalyl acetate that represent more than half of the emitted volatile organic compound (VOC) quantity. These monoterpenoids are derived from plastidial pathway precursors. The regulation of this pathway in lavender is mainly managed by the successive expression of two DXS during flower development. In the light of 10 years of published data on lavender, it appears that biochemical pathways of main terpenes are mostly depicted. Several transcriptomic libraries are available and a genome at chromosome scale has been assembled and molecular markers developed. The diversity of lavender terpenes and their biosynthesis are reviewed with additional original data regarding the anatomical glandular structures and expression of genes involved in IPP biosynthesis.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":"170 1","pages":"65 - 76"},"PeriodicalIF":1.5,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45879282","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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