Morphological characterization of Hypnaceae (Bryopsida, Hypnales): Investigating four genera from Western Himalayas by using LM and SEM techniques.,Microscopy Research and Technique

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Morphological characterization of Hypnaceae (Bryopsida, Hypnales): Investigating four genera from Western Himalayas by using LM and SEM techniques.
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2020-02-16 , DOI: 10.1002/jemt.23458
Aamir Shehzad Khan ₁ , Mushtaq Ahmad ₁ , Muhammad Zafar ₁ , Mohammad Athar ₂ , Fethi Ahmet Ozdemir ₃ , Syed Aneel Ahmad Gilani ₄ , Shazia Sultana ₁ , Shafiq Ahmad ₁ , Maryam Akram Butt ₁ , Salman Majeed ₁ , Shahzeb Ullah Khan ₁

Affiliation

The Hypnaceae is one of the largest and diversified family among the pleurocarpous mosses which consists of nearly 60 genera and 1,000 species around the world. In Pakistan, it is represented by 15 species and 8 genera. The current research article provides the detail morphological investigation of four different species (genera) of the family Hypnaceae that is, Gollania clarescens, Hypnum revolutum, Homomallium andoi, and Taxiphyllum taxirameum in the Western Himalayas, Pakistan. The research article reports the first SEM study of the leaf surfaces of the studied taxa, along with comprehensive morphological characters of the four species. The main objective of the research project is to present the comparative light and scanning electron microscopic study to discuss the morphology in detail because previously the family is just reported in different bryophyte checklists of the Western Himalayas. Based on results, morphological characters, micromorphological observations, qualitative and quantitative attributes, taxonomic keys for the studied taxa, distribution, and habitat are described. Stereoscope was used to analyze different qualitative characters, and light microscope was used to observe and measure the laminal and alar cells of the leaf. The SEM study reveals many important surface features like cell shape and cell wall. The laminal cells were mostly linear and elongated with thin cell walls. The specimens used for the SEM were air dried, so the laminal cells were somewhat constricted and concaved. The current study project will help to make the contribution in the taxonomy and morphology of this family.

中文翻译：

催眠科（Bryopsida，Hypnales）的形态学表征：通过使用LM和SEM技术研究喜马拉雅西部的四个属。

催眠科是胸膜苔藓中最大和多样化的家族之一，由全世界近60属和1000种组成。在巴基斯坦，它有15种8属。目前的研究文章提供的家庭Hypnaceae也就是四个不同的种（属）的详细形态学研究Gollania clarescens，弯叶灰藓，Homomallium andoi和鳞叶藓藓在巴基斯坦喜马拉雅山西部。该研究文章报告了所研究分类单元的叶片表面的首次SEM研究，以及这四个物种的综合形态特征。该研究项目的主要目的是提供比较光和扫描电子显微镜研究，以详细讨论形态，因为以前该家族仅在喜马拉雅山西部的不同苔藓植物清单中有报道。基于结果，描述了形态特征，微观形态观察，定性和定量属性，所研究的分类，分布和生境的分类关键。立体镜用于分析不同的定性特征，光学镜用于观察和测量叶片的叶片和叶片细胞。SEM研究揭示了许多重要的表面特征，如细胞形状和细胞壁。椎板细胞大多是线性的，并带有薄的细胞壁。用于SEM的样品被风干，因此椎板细胞有些收缩和凹陷。当前的研究项目将有助于为该家族的分类学和形态做出贡献。

更新日期：2020-02-16

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