Stem Anatomical Descriptors of Four Sesbania Scop. Species And Their Systematic Implication

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Bangladesh Journal of Plant Taxonomy Pub Date : 2021-12-26 DOI:10.3329/bjpt.v28i2.57139

S. Chanda, Md Ashik Mia, A. Sagar, Akm Golam Sarwar

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引用次数: 0

Abstract

Stem anatomical features of four Sesbania Scop. species viz. S. bispinosa (Jacq.) W. Wight, S. cannabina (Retz.) Poir., S. sesban (L.) Merr., and S. rostrata Bremek. & Oberm., were examined to add some insights for identification of these species using quantitative anatomical descriptors. Sesbania stem is composed of epidermis, cortex, vascular tissues – phloem, cambium zone and xylem, and pith, which exhibit significant variations among the species in terms of their area and thickness. Sesbania sesban showed the largest area and widest epidermal cells. The close relationship between S. bispinosa and S. rostrata was found in the stem anatomical descriptors. Moreover, S. rostrata and S. cannabina were closer to some extent according to some anatomical descriptors; also rationalizing the external morphological similarities of these species. A dichotomous key of the studied Sesbania species was made. Dendrograms based on Agglomerative Hierarchical Cluster analysis of stem anatomical descriptors also confirmed close relationships identified in previous phylogenetic analyses. Bangladesh J. Plant Taxon. 28(2): 441-449, 2021 (December)

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四种田菁属植物的茎解剖描述符。物种及其系统含义

四种田菁茎的解剖学特征。物种即S.bispinosa（Jacq.）W.Wight、S.cannabina（Retz.）Poir。，S.sesban（L.）Merr。，和S.rostrata Bremek。&奥伯姆。，进行了检查，为使用定量解剖描述符识别这些物种增加了一些见解。Sesbania茎由表皮、皮层、维管组织（韧皮部、形成层带和木质部）和髓组成，这些组织在不同物种之间的面积和厚度方面存在显著差异。田菁的表皮细胞面积最大、最宽。双孢S.bispinosa和玫瑰S.rostrata在茎的解剖描述中有着密切的关系。此外，根据一些解剖学描述，玫瑰S.rostrata和大麻S.cannabina在一定程度上更接近；也使这些物种的外部形态相似性合理化。对所研究的Sesbania种进行了二分键。基于茎解剖描述符的聚集层次聚类分析的树状图也证实了先前系统发育分析中确定的密切关系。孟加拉国植物分类学杂志。28（2）：441-4492021（12月）

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来源期刊

Bangladesh Journal of Plant Taxonomy 生物-植物科学

CiteScore

0.42

自引率

44.40%

发文量

审稿时长

6 months

期刊介绍： Bangladesh is a humid, subtropical country favouring luxuriant growth of microorganisms, fungi and plants from algae to angiosperms with rich diversity. She has the largest mangrove forest of the world in addition to diverse hilly and wetland habitats. More than a century back, foreign explorers endeavoured several floral expeditions, but little was done for non-vasculars and pteridophytes. In recent times, Bangladesh National Herbarium has been carrying out taxonomic research in Bangladesh along with few other national institutes (e.g. Department of Botany of public universities and Bangladesh Forest Research Institute).