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Blitum venetum (Chenopodiaceae), a new species from the north-eastern Dolomites (Italian Eastern Alps) Blitum venetum(藜科),产于意大利东阿尔卑斯多洛米蒂山脉东北部的一个新种
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-19 DOI: 10.37427/botcro-2022-009
D. Iamonico, Katia Sciuto, A. Sfriso, C. Argenti, M. Wolf
A new species, Blitum venetum Iamonico, Argenti, Sciuto & Wolf is described from the Dolomites Massif (North-Eastern Italy) on the basis of molecular analyses (nuclear ITS and plastid trnL-F regions) and morphological investigation. The new species is similar to B. bonus-henricus and B. californicum, but it differs from these taxa by characters of leaves (width, pubescence, and margins), inflorescence (presence of bracts), perianth segments (colour), and seeds (diameter, colour, and seed testa ornamentation). Moreover, in phylogenetic reconstructions B. venetum results as clearly separated from the other species of the genus; this finding was further strengthened by the nucleotide divergences calculated between the sequence of the type specimen and other Blitum taxa, which are comparable with the interspecific divergences calculated inside this genus.
在分子分析(核ITS和质体trnL-F区)和形态学研究的基础上,描述了意大利东北部多洛米蒂地块的一个新种,即Blitum venetum Iamonico、Argenti、Sciuto和Wolf。该新种与B.bonus henricus和B.californicum相似,但在叶(宽度、短柔毛和边缘)、花序(存在苞片)、花被片(颜色)和种子(直径、颜色和种皮装饰)的特征上与这些分类群不同。此外,在系统发育重建中,B.venetum与该属的其他物种明显分离;模式标本序列和其他Blitum分类群之间计算的核苷酸差异进一步加强了这一发现,这些差异与本属内部计算的种间差异相当。
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引用次数: 0
About the occurrence of Elatine macropoda and E. gussonei (Elatinaceae) in Sicily and lectotypification of their names 西西里岛Elatine大足虫和Elatine gusonei (Elatinaceae)的分布及其名称的选型
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-19 DOI: 10.37427/botcro-2022-010
S. Brullo, C. Brullo, G. Tavilla, S. Cambria, P. Minissale, S. Sciandrello, G. Giusso del Galdo, G. Siracusa, E. Del Guacchio
Morphological and nomenclatural investigations for two critical Mediterranean species of Elatine, i.e., E. macropoda and E. gussonei, aswell as their correct distribution in Sicily, are discussed. These two names are lectotypified on herbarium specimens kept, respectively, at NAP and FI. The morphological investigations carried out on both the types, as well as on several living and dried material collected in southern Sicily, Lampedusa, and Malta (loci classici included), allowed to individuate reliable diagnostic characters that can be used for a correct identification of the two species. The most relevant differential features are: ratio petal/sepal, size and shape of the seedtesta pits, and their arrangement in row number. According to our results, only E. macropoda occurs in the Hyblaean territory (Sicily), which is the locus classicus, whereas E. gussonei occurs on Lampedusa and Maltese islands only. However, further and in-depth morphological research is necessary to clarify their overall distribution in the Mediterranean area. Finally, an analytic key to the Mediterranean Elatine is provided.
本文讨论了地中海两个重要的类人猿种——巨足猿和古索奈猿的形态和命名研究,以及它们在西西里岛的正确分布。这两个名字分别在NAP和FI保存的植物标本室标本上进行了选型。对这两种类型进行的形态学调查,以及在西西里岛南部、兰佩杜萨岛和马耳他(包括经典位点)收集的几种活的和干燥的材料,允许对可靠的诊断特征进行个性化,可以用于正确识别这两个物种。最相关的差异特征是:花瓣/萼片比、种皮坑的大小和形状以及它们在行数上的排列。结果表明,大足鄂鼠只分布在西西里岛的海布拉海地区,是典型地,而古索内鄂鼠只分布在兰佩杜萨岛和马耳他岛。然而,需要进一步深入的形态学研究来阐明它们在地中海地区的总体分布。最后,给出了分析地中海拉丁语的关键。
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引用次数: 5
Dianthus nezahatiae (Caryophyllaceae), a new species from the northwestern Turkey 石竹(石竹科),土耳其西北部一新种
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-19 DOI: 10.37427/botcro-2022-018
E. Hamzaoğlu, S. Kanoğlu, N. Aksoy
Some Dianthus specimens collected from Sakarya and Bolu Provinces (Turkey) provinces are proposed as a new species. Dianthus nezahatiae Hamzaoğlu (Caryophyllaceae) is naturally distributed in subalpine meadowhabitats between the altitude range of 1450 and 1620 m a.s.l. Dianthus nezahatiae is differed from D. akdaghensis Gemici et Leblebici in respect to its inner bracts are 1.7−2.1 mm wide, the apex of the epicalyx scales is attenuate–rounded, the petal collar is almost half ofthe claw width, and the capsule is longer than calyx. In this paper description of the species, comparison with its close taxon, photographs, the distribution map, and its habitat preference are given.
从萨卡里亚省和博卢省(土耳其)采集的一些石竹标本被认为是一个新种。石竹(石竹科)自然分布于海拔1450米至1620米的亚高山草甸栖息地,囊长于肾盏。本文对该物种进行了描述,并与近缘分类单元进行了比较,给出了该物种的照片、分布图和栖息地偏好。
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引用次数: 1
First record of Sida rhombifolia L. (Malvaceae) for Italian flora 菱叶西达(锦葵科)意大利植物区系第一记录
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-19 DOI: 10.37427/botcro-2022-013
S. Cambria, A. Crisafulli, G. Giusso del Galdo, R. Picone, A. Soldano, S. Sciandrello, G. Tavilla
Sida rhombifolia L. (Malvaceae) has been reported for the first time in Italy. This species with a Paleotropics geographic origin represents a new invasive alien species in the flora of Italy. It was already reported in several European countries as invasive species, but this plant is also known for its medicinal properties in many areas of the world. The species was found in the anthropic environments of Sicily. Inparticular, the study area is localized in the Peloritani Mounts (NE Sicily) where the species was discovered in five stands. Our new discovery confirmed the role of anthropic activities have had in the alien species invasion in Italy. Diagnostic features, ecological and geographic data are provided. From a phytosociological viewpoint, this plant characterizes a plant community that includes various nitrophilousspecies such as Digitaria sanguinalis (L.) Scop., Eleusine indica (L.) Gaertn. and Sorghum halepense (L.) Pers. Moreover, invasiveness and impacts associated to this species were assessed by using EPPO prioritization protocol. The specimens were deposited in the herbaria ofCatania and Messina University.
菱叶锦葵(Malvaceae)在意大利首次报道。这种具有古热带地理起源的物种代表了意大利植物群中一种新的入侵外来物种。它已经在几个欧洲国家被报道为入侵物种,但这种植物在世界许多地区也以其药用特性而闻名。该物种是在西西里岛的人类环境中发现的。特别是,研究区域位于Peloritani山脉(西西里岛东北部),在那里发现了五个林分的该物种。我们的新发现证实了人类活动在意大利外来物种入侵中的作用。提供了诊断特征、生态和地理数据。从植物社会学的角度来看,这种植物具有植物群落的特征,该植物群落包括各种嗜氮物种,如Digitaria sangialis(L.)Scop。,Eleusine indica(L.)Gaertn。此外,通过EPPO优先级协议评估了该物种的入侵性和影响。标本存放在卡塔尼亚和墨西拿大学的植物标本室。
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引用次数: 2
Seed, pollen morphology and numerical analysis of Tephrosia Pers. (Fabaceae) and their taxonomic significance 毛茛种子、花粉形态及数值分析。(豆科)及其分类意义
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-19 DOI: 10.37427/botcro-2022-012
Ahmed Elkordy, A. Osman, Mohamed O. Badry
In Egypt, the seed and pollen grain morphology of the genus Tephrosia Pers. were studied using light and scanning electron microscopy. Qualitative and quantitative characters of seeds and pollen grains are presented. The data suggest that several seed and pollen morphological characters can distinguish the taxa of Tephrosia. Based on UPGMA clustering analysis and PCA, three main clades were recognized: Clade A comprising T. kassasii, clade B comprising T. apollinea, T. purpurea, T.quartiniana, and T. uniflora, and clade C comprising T. nubica. The seed and pollen morphological data obtained in this study provide additional characters helping in classifying the genus. Dichotomous artificial keys based on seed and pollen data of the investigated taxa are presented.
在埃及,毛茛属植物的种子和花粉粒形态。用光镜和扫描电镜对其进行了研究。介绍了种子和花粉粒的定性和定量特征。这些资料表明,一些种子和花粉的形态特征可以区分毛茛属植物。通过UPGMA聚类分析和主成分分析,确定了3个主要支系:由卡assasii组成的A支系,由apollinea、purpurea、quartiniana和uniflora组成的B支系,以及由nubica组成的C支系。本研究获得的种子和花粉形态资料提供了有助于分类的附加特征。提出了基于所调查分类群种子和花粉数据的二分类人工钥匙。
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引用次数: 0
Phytoplankton metrics for trophic and ecological status assessment of a natural karstic lake 天然喀斯特湖营养与生态状况评价的浮游植物指标
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-11 DOI: 10.37427/botcro-2022-016
Maja Šimunović, Antonija Kulaš, P. Žutinić, G. Goreta, M. Gligora Udovič
According to the Water Framework Directive (WFD), biological quality elements constitute the basis for assessing ecological status of surfacewaters. Biological communities are good indicators of water quality because they reflect environmental conditions over time and do not require frequent sampling. The main aims were to assess trophic and ecological status of the Lake Visovac (Krka River hydrosystem, South Croatia) using phytoplankton together with supportive physico-chemical parameters, eutrophication status and impact indicators. We also tested the viability of Chlorophyll-a (Chl-a) and Hungarian Lake Phytoplankton Index (HLPI) as proposed metrics in the standard regulatory monitoring procedure. The phytoplankton samples, Chl-a and physical- chemical parameters were taken on a monthly basis from April to September in 2016and 2019. In 2016, the most dominant species was Pantocsekiella ocellata (Pantocsek) K.T.Kiss & Ács, while in 2019 it was accompanied by Ceratium hirundinella (O.F.Müller) Dujardin. According toChl-a, Lake Visovac was within the limits of oligo- to mesotrophic status. Based on the HLPI index, the Lake ecological status was assessedas Good. Chl-a showed a statistically significant positive correlation with temperature, while HLPI was positively correlated with oxygen and Secchi depth. We propose the use of Chl-a for rapid bioassessment on a weekly basis, whilst more complex HLPI index should be applied monthly. Further improving the confidence level of the metrics used to assess theecological status and a comprehensive revision of boundaries for included indicators is of fundamental importance.
根据水框架指令(WFD),生物质量要素构成了评估地表水生态状况的基础。生物群落是水质的良好指标,因为它们反映了一段时间内的环境条件,不需要频繁采样。主要目的是利用浮游植物以及支持性理化参数、富营养化状况和影响指标来评估Visovac湖(Krka河水系,克罗地亚南部)的营养和生态状况。我们还测试了作为标准监管监测程序中建议指标的叶绿素-a (Chl-a)和匈牙利湖浮游植物指数(HLPI)的生存能力。2016年和2019年4 - 9月逐月采集浮游植物样本、Chl-a和理化参数。2016年最优势种为Pantocsekiella ocellata (Pantocsek) k.t.k kiss & Ács, 2019年伴生有Ceratium hirundinella (o.f.m ller) Dujardin。根据chl -a,维索瓦茨湖处于低营养到中营养状态的范围内。基于HLPI指数,评价湖泊生态状况为良好。Chl-a与温度呈正相关,HLPI与氧、Secchi深度呈正相关。我们建议每周使用Chl-a进行快速生物评价,而更复杂的HLPI指数应每月应用。进一步提高用于评估生态状况的指标的置信度和全面修订所包括指标的边界是至关重要的。
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引用次数: 2
A systematic study of the Thlaspi s.l. taxa in sections Nomisma, Thlaspi and Pterotropis from Turkey based on fruit morphological and molecular data 土耳其Nomisma、Thlaspi和Pterotropis切片中Thlaspi s.l分类群的形态学和分子分析
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-11 DOI: 10.37427/botcro-2022-017
Mehmet Cengiz Karaismailoğlu, B. Inal, Osman Erol
The classification of Thlaspi s.l. is still problematic. Earlier phylogenetic research of the genus has focused on several small groups within Thlaspi s.str. and lacks detailed morphological observations. Therelationships among Eurasian taxa and the value of fruit morphology in defining them have yet to be studied. The aim of this study was to analyze 22 taxa belonging to the Nomisma, Thlaspi and Pterotropis sections of Thlaspi s.l. from Turkey using maximum likelihood (ML) analysis of Internal Transcript Spacer (ITS) sequences. We also analyzedtheir fruit morphological features. According to the results, the examined taxa fell into 2 main clades. Moreover, clade II showed 3 sub-clusters. Thlaspi huetii and T. aghricum were the most distant taxa with a distance of 0.49%; however, T. ochroleucum and T. violascens werefound to be 99% similar. According to ITS region data based on multiplepopulations of each taxon, T. arvense, T. huetii, T. perfoliatum, T. violascens, T. cataonicum, T. elegans, T. rosulare and T. aghricum were placed together in one cluster, which indicates that they are monophyletic. Thlaspi elegans was found to be a polyploid complex based on bootstrap (BS) (a resampling technique that uses replacement samplingto estimate statistics in a population) values, which varied widely among the studied T. elegans taxa (98, 65 and 49%). Fruit morphology also supported the inter-specific relationships based on molecular data,and relationships found by ITS region data were compatible with fruit type and geographic distribution. A diagnostic key based on fruit morphology is provided for the identification of the examined Thlaspi taxa.
Thlaspi s.l.的分类仍然存在问题。该属早期的系统发育研究主要集中在Thlaspi s.str内的几个小群体上,缺乏详细的形态学观察。欧亚分类群之间的关系以及果实形态在定义它们方面的价值尚待研究。本研究的目的是使用内部转录间隔区(ITS)序列的最大似然(ML)分析来分析来自土耳其的Thlaspi s.l.的Nomisma、Thlaspi和Pteroropis部分的22个分类群。并对其果实形态特征进行了分析。根据研究结果,所研究的分类群可分为2个主要分支。此外,分支II显示出3个子簇。距离最远的分类群是胡氏Thlaspi和aghricum,距离为0.49%;然而,发现T.chroleucum和T.violascens有99%的相似性。根据各分类单元多个种群的ITS区域数据,A.arvense、T.huetii、T.perfoliatum、T.violascens、T.catonicum、T.elegans、T.rosulare和T.aghricum被放在一个类群中,表明它们是单系的。根据bootstrap(BS)(一种使用替代采样来估计种群统计数据的重新采样技术)值,发现秀丽隐杆线虫是一种多倍体复合体,在所研究的秀丽隐杆虫分类群中差异很大(98%、65%和49%)。果实形态也支持基于分子数据的特异性关系,ITS区域数据发现的关系与果实类型和地理分布一致。为鉴定所检测的Thlaspi分类群提供了一个基于果实形态的诊断关键。
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引用次数: 2
Gas exchange in genotypes of Nopalea cochenillifera in different seasons and evaluations times 不同季节和评价时间下不同基因型绿僵菌的气体交换
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-11 DOI: 10.37427/botcro-2022-015
Jucilene Silva Araújo, José Thyago Aires Souza, Evaldo dos Santos Félix, Rita de Cássia Alves, Tarcísio José de Oliveira Filho, Elder Cunha de Lira
This study aimed to evaluate the gas exchanges in genotypes of Nopalea cochenillifera Salm-Dyck in different seasons and times of the day. The experiment was conducted with the varieties Miúda and Baiana at the Experimental Station Prof. Ignacio Salcedo, belonging to the National Semi-Arid Institute (INSA), in the municipality of Campina Grande, Stateof Paraíba, Brazil. The treatments were distributed in a 24 × 2 factorial arrangement, corresponding to gas exchange evaluations performed every hour for 24 hours in the rainy season (June) and in the drought season (December). Analyzed were stomatal conductance, transpiration rate, CO2 uptake, and internal CO2 concentration, besides instantaneous water-use efficiency, intrinsic water-use efficiency, and instantaneous carboxylation efficiency. In both drought and rainy seasons, variety Baiana presented higher gas exchange intensity than thevariety Miúda. In the rainy season, gas exchanges are potentialized in both varieties evaluated. In this period, the peak of CO2 uptake occurs from 1:00 a.m. to 3:00 a.m. for the verity Baiana, and from11:00 p.m. to2:00 a.m. for the variety Miúda, whereas, in the drought season, it occurs from 11:00 p.m. to 2:00 a.m. for both varieties, with these constituting the ideal intervals for measuring gas exchanges in the field.
本研究旨在评估不同季节和不同时段cochenillifera Salm-Dyck基因型的气体交换。试验是在巴西Paraíba州坎皮纳格兰德市国家半干旱研究所(INSA)的Ignacio Salcedo教授实验站用Miúda和Baiana两个品种进行的。在雨季(6月)和旱季(12月),按24小时每小时进行一次气体交换评价,按24 × 2因子安排进行处理。除瞬时水分利用效率、内在水分利用效率和瞬时羧基化效率外,还分析了气孔导度、蒸腾速率、CO2吸收量和内部CO2浓度。在旱季和雨季,百安娜品种的气体交换强度均高于Miúda品种。在雨季,两个品种都有潜在的气体交换。在此期间,百亚那品种的CO2吸收高峰发生在凌晨1点至3点,Miúda品种的CO2吸收高峰发生在晚上11点至凌晨2点,而在干旱季节,这两个品种的CO2吸收高峰发生在晚上11点至凌晨2点,这是测量田间气体交换的理想间隔。
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引用次数: 0
Morpho-anatomical diversity of five species of genus Asparagus (Asparagaceae) from Algeria 阿尔及利亚天门冬属(天门冬科)五种植物的形态解剖多样性
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-11 DOI: 10.37427/botcro-2022-014
Boubetra Kenza, Amirouche Nabila, Amirouche Rachid
Five species of genus Asparagus are recognized in the flora of Algeria: A. acutifolius L., A. albus L., A. horridus L., A. officinalis L., and the endemic A. altissimus Munby. The chorology of each of these species is fairly well known. In this study, morphological variation and the anatomical features of the cladodes have been evaluated in respect to each taxonomic unit and ecogeographical distribution and suggest distinct adaptive strategies. Analysis have been performed on twenty-nine natural populations sampled along the east-west bioclimatic gradient of the Northern Algeria. Multivariate analysis based on the main diagnostic descriptors, underlines the interspecific differentiation particularly with respect to the stigma type bifid versus trifid, shape of flowers, color of berry, and the number of cladodes in a fascicle. For each species the anatomy of the cladodes is unique, unlike that of stems and roots. Interspecific differentiation was observed in the form of cross-sections of the cladode, thickness of the cuticle, shape of epidermal cells, number of vascular bundles and presence of raphides. Morphological and anatomical traits of the cladodeconstitute important interspecific criteria within the genus Asparagus.
在阿尔及利亚植物区系中,有五种芦笋属植物:尖叶芦笋、白叶芦笋、黑叶芦笋、厚朴芦笋和当地特有的高山天门冬。这些物种中的每一种的合唱学都是众所周知的。在这项研究中,根据每个分类单元和生态地理分布,对分支节的形态变异和解剖特征进行了评估,并提出了不同的适应策略。对阿尔及利亚北部东西向生物气候梯度沿线的29个自然种群进行了分析。基于主要诊断描述符的多变量分析强调了种间分化,特别是在柱头类型二裂与三裂、花的形状、浆果的颜色和束中分支的数量方面。对于每个物种,分支节的解剖结构都是独特的,不同于茎和根的解剖结构。通过分支节的横截面、角质层的厚度、表皮细胞的形状、维管束的数量和萝卜素的存在观察到种间分化。该分支的形态和解剖特征构成了芦笋属重要的种间标准。
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引用次数: 1
Effect of moderate heat stress on Arabidopsis thaliana with modified BPMs expression 中等热胁迫对拟南芥bpm表达的影响
IF 1.3 4区 生物学 Q3 Agricultural and Biological Sciences Pub Date : 2022-04-08 DOI: 10.37427/botcro-2022-011
Sandra Vitko, N. Bauer, D. Leljak-Levanić, Ž. Vidaković-Cifrek
In Arabidopsis thaliana (L.) Heynh., a major part of MATH-BTB protein family (BPM proteins) participate in the ubiquitin‐proteasome pathway assubstrate-specific adaptors of Cullin 3 dependent E3 ligase. Through targeting of specific proteins for degradation, BPMs are involved in various developmental processes, as well as in the plant’s ability to adapt to changing environmental conditions. The aim of this research wasto investigate the oxidative stress response of Arabidopsis with modified BPMs expression to moderate heat stress. Seedlings of wild type, line overexpressing BPM1 gene (oeBPM1), and line with down-regulation of BPM1, 4, 5, and 6 genes (amiR bpm) were exposed to 37°C for six hours. Seedlings were sampled immediately after stress and after a recovery period of 24 h. Control seedlings were grown at 24 °C and were collected at the same time points as treated ones. The level oflipid peroxidation, H2O2 and proline content, as well as the activity of antioxidant enzymes (G POD, APX, CAT, and SOD) were evaluated. Control amiR bpm and oeBPM1 seedlings generally had lower H2O2 and proline content, respectively, than wild type. After exposure to 37 °C, oeBPM1 and amiR-bpm lines showed reduced proline content, while no change in lipid peroxidation level and H2O2 content was observed. Further, seedlings with modified BPMs expression showed differences in the activity of G POD, APX, and SOD, while no change was observed in theactivity of CAT. The results obtained suggest involvement of BPM proteins in the response of Arabidopsis to moderate heat stress.
拟南芥(L.)Heynh。MATH-BTB蛋白家族(BPM蛋白)作为Cullin 3依赖性E3连接酶的底物特异性接头参与泛素-蛋白酶体途径。通过靶向特定的蛋白质降解,bpm参与了各种发育过程,以及植物适应不断变化的环境条件的能力。本研究旨在探讨bpm表达修饰的拟南芥对中度热胁迫的氧化应激反应。将野生型、BPM1基因过表达系(oeBPM1)和BPM1、4、5和6基因下调系(amiR bpm)的幼苗在37℃下暴露6小时。胁迫后和恢复期24 h后立即取样。对照苗在24℃下生长,与处理苗在同一时间点采集。测定脂质过氧化水平、H2O2和脯氨酸含量,以及抗氧化酶(G POD、APX、CAT和SOD)活性。对照amiR bpm和oeBPM1幼苗的H2O2和脯氨酸含量普遍低于野生型。37℃处理后,oeBPM1和amiR-bpm系脯氨酸含量降低,而脂质过氧化水平和H2O2含量没有变化。此外,bpm表达修饰的幼苗在G POD、APX和SOD的活性方面存在差异,而CAT的活性没有变化。结果表明,BPM蛋白参与拟南芥对中度热胁迫的响应。
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引用次数: 0
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Acta Botanica Croatica
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