Hussain Amara Noor, Zafar Muhammad, Ahmad Mushtaq, Khan Raees, Yaseen Ghulam, Khan Muhammad Saleem, Nazir Abdul, Khan Amir Muhammad, Shaheen Shabnum
Department of Plant sciences, Quaid-i-Azam University Islamabad, Pakistan.
Ministry of Climate Change, Zoological Survey of Pakistan, Islamabad, Pakistan.
Microsc Res Tech. 2018 May;81(5):474-485. doi: 10.1002/jemt.23001. Epub 2018 Feb 27.
Palynological features as well as comparative foliar epidermal using light and scanning electron microscope (SEM) of 17 species (10genera) of Amaranthaceae have been studied for its taxonomic significance. Different foliar and palynological micro-morphological characters were examined to explain their value in resolving the difficulty in identification. All species were amphistomatic but stomata on abaxial surface were more abundant. Taxonomically significant epidermal character including stomata type, trichomes (unicellular, multicellular, and capitate) and epidermal cells shapes (polygonal and irregular) were also observed. Pollens of this family are Polypantoporate, pores large, spheroidal, mesoporous region is sparsely to scabrate, densely psilate, and spinulose. All these characters can be active at species level for identification purpose. This study indicates that at different taxonomic levels, LM and SEM pollen and epidermal morphology is explanatory and significant to identify species and genera.
对苋科17个物种（10个属）的孢粉学特征以及利用光学显微镜和扫描电子显微镜（SEM）进行的叶表皮比较进行了研究，以探讨其分类学意义。对不同的叶部和孢粉学微观形态特征进行了研究，以解释它们在解决鉴定难题方面的价值。所有物种均为双面气孔叶，但下表面的气孔更为丰富。还观察到具有分类学意义的表皮特征，包括气孔类型、毛状体（单细胞、多细胞和头状）以及表皮细胞形状（多边形和不规则形）。该科的花粉为多沟孔型，孔大，呈球形，中孔区稀疏至粗糙，密被光滑，具小刺。所有这些特征在物种水平上都可用于鉴定。本研究表明，在不同的分类水平上，光学显微镜和扫描电子显微镜下的花粉和表皮形态对于鉴定物种和属具有解释性和重要意义。
