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Taxonomic importance of SEM and LM foliar epidermal micro-morphology: A tool for robust identification of gymnosperms
Khan, Raees1,2; Ul Abidin, Sheikh Zain1; Ahmad, Mushtaq1; Zafar, Muhammad1; Liu, Jie3; Lubna1; Jamshed, Shayan1; Kilic, Omer4
Corresponding AuthorKhan, Raees(raeeskhan@bs.qau.edu.pk)
2019-06-01
Source PublicationFLORA
ISSN0367-2530
Volume255Pages:42-68
AbstractThe 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.
KeywordTaxonomy Gymnosperms Foliar epidermal morphology Florin rings Epicuticular wax Phytoliths
DOI10.1016/j.flora.2019.03.016
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology
WOS SubjectPlant Sciences ; Ecology
WOS IDWOS:000467387100006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/66895
Collection中国西南野生生物种质资源库
Corresponding AuthorKhan, Raees
Affiliation1.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
Recommended Citation
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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