Taxonomic importance of SEM and LM foliar epidermal micro-morphology: A tool for robust identification of gymnosperms

doi:10.1016/j.flora.2019.03.016

	Taxonomic importance of SEM and LM foliar epidermal micro-morphology: A tool for robust identification of gymnosperms
	Khan, Raees 1,2; Ul Abidin, Sheikh Zain 1; Ahmad, Mushtaq 1; Zafar, Muhammad 1; Liu, Jie3 ; Lubna 1; Jamshed, Shayan 1; Kilic, Omer 4
通讯作者	Khan, Raees(raeeskhan@bs.qau.edu.pk)
	2019-06-01
发表期刊	FLORA
ISSN	0367-2530
卷号	255 页码:42-68
摘要	The current study reports the implication of scanning electron microscopy (SEM) and light microscopy (LM) epidermal micro-morphological characters in the identification of gymnosperms of Pakistan. A number of characters were found to be of great taxonomic significance and can be used to distinguish different species of gymnosperms with its help. Here, the foliar cuticular features of 44 gymnosperm species were assessed, in which 32 were hypostomatic, 6 were epistomatic and 6 were amphistomatic. Four different types of guard cells were observed, 27 species having crescent shaped, 10 species having rectangular, 5 species having dome-shaped, and 2 species having triangular guard cells. Sunken type stomata were very frequent in all gymnosperm species. 27 species have different types of phytoliths, while in the remaining 17 species no phytoliths were seen. In the current study, we have recognized seven types of Florin rings, named as Type A, Type B, Type C, Type D, Type E and Type F. Three types (Type I, Type II and Type III) of epicuticular wax were also observed in the investigated species. The quantitative character showed diversity and was useful in the complete assessment and key making. A taxonomic key based on these micro-morphological characters was prepared. The study characters (stomatal index, stomatal density, epidermal cell density and stomatal area) were also analyzed by different statistical methods. SEM and LM foliar epidermal studies were found very useful in taxonomic identification. Based on current results we recommend such studies for accurate taxonomic identification and complete phylogeny.
关键词	Taxonomy Gymnosperms Foliar epidermal morphology Florin rings Epicuticular wax Phytoliths
DOI	10.1016/j.flora.2019.03.016
收录类别	SCI
语种	英语
WOS记录号	WOS:000467387100006
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/66895
专题	中国西南野生生物种质资源库
通讯作者	Khan, Raees
作者单位	1.Quaid I Azam Univ Islamabad, Dept Plant Sci, Islamabad, Pakistan 2.Minist Climate Change, Zool Survey Pakistan, Islamabad, Pakistan 3.Chinese Acad Sci, Kunming Inst Bot, Kunming, Yunnan, Peoples R China 4.Bingol Univ, Dept Pk & Garden Plant, Bingol, Turkey
推荐引用方式 GB/T 7714	Khan, Raees,Ul Abidin, Sheikh Zain,Ahmad, Mushtaq,et al. Taxonomic importance of SEM and LM foliar epidermal micro-morphology: A tool for robust identification of gymnosperms[J]. FLORA,2019,255:42-68.
APA	Khan, Raees.,Ul Abidin, Sheikh Zain.,Ahmad, Mushtaq.,Zafar, Muhammad.,Liu, Jie.,...&Kilic, Omer.(2019).Taxonomic importance of SEM and LM foliar epidermal micro-morphology: A tool for robust identification of gymnosperms.FLORA,255,42-68.
MLA	Khan, Raees,et al."Taxonomic importance of SEM and LM foliar epidermal micro-morphology: A tool for robust identification of gymnosperms".FLORA 255(2019):42-68.

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