Pollen Morphology of Some Euphorbia Taxa and Its Systematic Significance

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-01-05 DOI:10.1080/01916122.2023.2165550

M. Kürşat

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Abstract

ABSTRACT The current study's objective is to infer the specific pollen morphologies of 27 different Euphorbia L. Turkish taxa were cultivated using LM and SEM. Additionally, principal component analysis (PCA) is developed and cluster analysis is used to examine similarity grouping in this study. The results of the current study showed that tricolporate pollen grains are present in 24 different taxa of Euphorbia, whereas three other taxa E. denticulate, E. esula subsp. tommassiniana, and E. orientalis have tricolpate and tricolporate pollen grains. The results of this study also revealed that pollen grains frequently have a perforated pattern. The use of ornamentations with reticulate- and rugulate-perforate surfaces has also been discovered. The current study revealed that six taxa of Euphorbia have prolate-spheroidal pollen shapes, while 20 of the 27 Euphorbia under study have oblate-spheroidal pollen shapes. But only the pollen of E. grisophylla, 1 of the 27 tested Euphorbia taxa, has a subprolate shape. On the other hand, the PCA results explained 92.16% of the variation, and the unweighted pair group method with arithmetic mean (UPGMA) dendrogram identified four taxonomic groupings, as follows: t es 1–4

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大戟属植物花粉形态及其系统意义

摘要本研究的目的是利用LM和SEM分析27个不同土耳其大胡属(Euphorbia L. Turkish)类群的花粉形态。此外，本研究还发展了主成分分析(PCA)，并使用聚类分析来检验相似性分组。结果表明，在大戟属植物的24个分类群中存在三聚体花粉粒，而在大戟属植物的3个分类群中存在小齿花粉粒。和东方菊的花粉粒为三柱体和三柱体。本研究结果还揭示了花粉粒经常具有穿孔模式。使用网状和规则穿孔表面的装饰也被发现。本研究发现，大戟属植物中有6个类群花粉形态为长球状，而27个类群中有20个类群花粉形态为扁球状。但是，在27个大戟属分类群中，只有1个大戟属(E. grisophylla)的花粉具有近长形。另一方面，PCA结果解释了92.16%的变异，UPGMA树形图的非加权对群法(unweighted pair group method with arithmetic mean, UPGMA)鉴定出4个分类类群，分别为:1 ~ 4

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.