Micro morphological foliar taxonomic studies of genus Paspalum based on scanning electron microscopy,Microscopy Research and Technique

当前位置： X-MOL 学术 › Microsc. Res. Tech. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Micro morphological foliar taxonomic studies of genus Paspalum based on scanning electron microscopy
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-07-02 , DOI: 10.1002/jemt.23862
Shabnum Shaheen ₁ , Javad Sharifi-Rad _{2,

3} , Khadim Hussain _{4,

5} , Muhammad Naveed Shahid ₆ , Zeeshan Shamim ₇ , Moneeza Abbas ₈ , Mushtaq Ahmad ₉ , Andaleeb Anwar Sardar ₁₀ , Romaisha Sonia ₁ , Farah Khan ₁

Affiliation

Paspalum is one of the 10 largest genera in Poaceae and is considered as a complex and taxonomically difficult genus due to its similar morphological characters within the species which makes it difficult to delimit taxa within the same genus. The current research work establishes the distinction among species of this genus and resolves taxonomic confusions among this genus. And this distinction is done by micro morphological foliar anatomical characterization by light and scanning electron microscopy. Both the abaxial and adaxial epidermal cuticles of three different species of genus Paspalum were studied and their phytoliths were observed through elemental dispersive spectrophotometric analysis by SEM first time in Pakistan. Results showed great variation in studied anatomical features. P. dilatatum Poir. was comprised of macro-hairs in the intercostal regions only whereas no macro-hairs were found in P. distichum Linn. and P. scrobiculatum Linn. Beak-shaped prickles were found in the intercostal regions on adaxial surface only in P. distichum Linn. and P. scrobiculatum Linn. whereas in P. dilatatum Poir., knife-shaped prickles were present in intercostal regions only on both abaxial and adaxial surfaces of leaf epidermis. No papillae were seen in P. dilatatum Poir whereas in P. distichum Linn. and P. scrobiculatum Linn. papillae were found abundantly. In genus paspalum, P. dilatatum Poir. phytoliths showed lowest mass percentage of silicon as 15.13% whereas P. distichum Linn. phytoliths showed highest mass percentage of silicon as 22.00%. Based on micro morphological foliar characteristics a taxonomic key of studied species is also provided to delimit the taxa.

中文翻译：

基于扫描电镜的雀稗属微形态叶分类学研究

雀稗是禾本科最大的 10 属之一，由于其种内形态特征相似，难以划定同一属内的分类群，因此被认为是一个复杂且分类学上困难的属。目前的研究工作确定了该属物种之间的区别，并解决了该属之间的分类混淆。这种区别是通过光学和扫描电子显微镜的微观形态叶解剖特征来完成的。研究了三种不同种类雀稗属的背面和正面表皮角质层，并在巴基斯坦首次通过 SEM 的元素色散分光光度分析观察了它们的植硅体。结果显示所研究的解剖特征差异很大。P. dilatatum Poir。仅由肋间区域的大毛组成，而在P. distichum Linn 中没有发现大毛。和P. scrobiculatum Linn。仅在P. distichum Linn 中，在正轴表面的肋间区域发现了喙状刺。和P. scrobiculatum Linn。而在P. dilatatum Poir. 中，刀形刺仅出现在叶表皮的背面和正面的肋间区域。在P. dilatatum Poir 中没有看到乳头，而在P. distichum Linn 中。和P. scrobiculatum Linn。大量发现乳头。在雀稗属中，P. dilatatum普尔。植硅体显示硅的最低质量百分比为 15.13%，而P. distichum Linn。植硅体显示硅的最高质量百分比为 22.00%。基于微形态的叶特征，还提供了研究物种的分类学关键字来划定分类群。

更新日期：2021-07-02

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11