犬齿龙的叶表皮解剖与生态适应的关系

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Bangladesh Journal of Plant Taxonomy Pub Date : 2021-06-22 DOI:10.3329/bjpt.v28i1.54216

SK Nitu, H. Tarique, S. Islam

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引用次数: 1

摘要

通过叶片表皮特征的定性和定量研究，特别参考气孔特征，探讨环境条件对24种Cynodon dactylon (L.)植物的影响。珀耳斯。收集自孟加拉国不同的生态栖息地。在显微镜下观察成熟叶片两面的表皮剥落。叶片为两形气孔型，气孔为麻痹型。本研究发现表皮细胞呈弯曲状。硅体呈鞍形和十字形。尖刺棱角分明，尖尖的。所有材料均有大毛，但在正面和背面均未发现微毛。叶片正面和背面气孔频率和气孔指数在不同品种间存在差异，多数品种间差异具有统计学意义。植物分类单元。28(1):171- 193,2021 (6)

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Leaf epidermal anatomy of Cynodon dactylon (L.) Pers. in relation to ecotypic adaptation

Qualitative and quantitative studies were done on leaf epidermal characteristics with special reference to stomatal features to find out the impact of environmental condition on twenty four accessions of Cynodon dactylon (L.) Pers. collected from different ecological habitats of Bangladesh. The foliar epidermal peels from both surfaces of mature leaves were observed under microscope. The leaves were found to be amphistomatic and stomata were paracytic type. The epidermal cells in this study were found to be sinuous. Silica bodies were found to be saddle and cross shaped. Prickles angular were pointed at the tip. Macro-hairs were present in all the accessions, but no micro-hair was found both adaxially or abaxially. Stomatal frequency and stomatal index were found to vary from accession to accession on both adaxial and abaxial surface of leaves, and the differences were statistically significant in most of the cases. Bangladesh J. Plant Taxon. 28(1): 171-193, 2021 (June)

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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).