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Implication of light and scanning electron microscopy for pollen morphology of selected taxa of family Asteraceae and Brassicaceae
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-08-31 , DOI: 10.1002/jemt.23912 Faria Umber 1 , Muhammad Zafar 1 , Riaz Ullah 2 , Ahmed Bari 3 , Muhammad Yahya Khan 4 , Mushtaq Ahmad 1, 5 , Shazia Sultana 1
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-08-31 , DOI: 10.1002/jemt.23912 Faria Umber 1 , Muhammad Zafar 1 , Riaz Ullah 2 , Ahmed Bari 3 , Muhammad Yahya Khan 4 , Mushtaq Ahmad 1, 5 , Shazia Sultana 1
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The present study was intended to assess pollen morphological attributes of selected Asteraceous and Brassicaceous species from tehsil Esa Khel (Mianwali), Punjab using scanning electron microscopy (SEM) and light microscopy (LM) techniques for its systematic and taxonomic significance for correct identification. Pollen from 12 different species belongs to two plant families from various distributional localities were collected, acetolyzed and measured. Different palynomorphological features were investigated using LM and SEM techniques. In Asteraceous species, three types of pollen (tricolporate, trizonocolporate, and tetracolporate) were observed. Pollen shape was observed prolate-spheroidal in three species while oblate and oblate-spheroidal were detected in Parthenium hysterophorus and Erigeron bonariensis. While sculpturing pattern of exine were echinate, echinate fenestrate, echinate perforate and scabrate echinate. Mesocolpium measurement was calculated maximum for Sonchus oleraceous (16.6 μm). Brassicaceae pollen were circular, lobate, tricolpate and exine show reticulate peculiarities. Whereas dominant shape was oblate-spheroidal followed by prolate-spheroidal and sub-prolate in Lepidium didymum and Sisymbrium irio, respectively. Mesocolpium distance was noted highest in Raphanus raphanistrum (14.4 μm). Exine thickness was noted maximum in Erigeron bonariensis (2.9 μm) in Asteraceous species and in Brassicaceae; Lepedium didymum exine measurement was 2.7 μm. The study showed that pollen micromorphology has important role to accurately identify and classify diverse plants genera belong to different families. Based on these taxonomic palynomorph features, the accurate identification of species from flora of tehsil Esa Khel, Mianwali were elaborated.
中文翻译：
光学和扫描电子显微镜对菊科和十字花科选定分类群花粉形态的影响
本研究旨在使用扫描电子显微镜 (SEM) 和光学显微镜 (LM) 技术评估来自旁遮普邦 tehsil Esa Khel (Mianwali) 的选定紫菀科和芸苔科物种的花粉形态属性，以了解其系统和分类学意义，以便正确识别。收集了来自不同分布地区的属于两个植物科的 12 种不同物种的花粉，进行了乙酰水解和测量。使用 LM 和 SEM 技术研究了不同的孢粉形态特征。在紫菀属物种中，观察到三种类型的花粉（tricolporate、trizonocolporate 和tetracolporate）。三个物种的花粉形状为扁长球状，而在Parthenium hysterophorus和灯笼草。而外壁的雕刻图案则有刺刺、刺刺、刺刺、刺刺和刺刺。Mesocolpium 测量值被计算为Sonchus olecular (16.6 μm) 的最大值。十字花科花粉呈圆形、裂片状、三叶状和外壁呈网状特征。而在Lepidium didymum和Sisymbrium irio 中，主要形状是扁球体，其次是长球体和亚长球体。在Raphanus raphanistrum (14.4 μm) 中注意到 Mesocolpium 距离最高。在紫菀科和十字花科中，Erigeron bonariensis (2.9 μm) 的外壁厚度最大；韭菜外壁测量值为 2.7 μm。研究表明，花粉微形态学对于准确识别和分类属于不同科的不同植物属具有重要作用。基于这些分类孢粉型特征，详细阐述了从 tehsil Esa Khel、Mianwali 的植物群中准确识别物种。
更新日期：2021-08-31
中文翻译：
光学和扫描电子显微镜对菊科和十字花科选定分类群花粉形态的影响
本研究旨在使用扫描电子显微镜 (SEM) 和光学显微镜 (LM) 技术评估来自旁遮普邦 tehsil Esa Khel (Mianwali) 的选定紫菀科和芸苔科物种的花粉形态属性，以了解其系统和分类学意义，以便正确识别。收集了来自不同分布地区的属于两个植物科的 12 种不同物种的花粉，进行了乙酰水解和测量。使用 LM 和 SEM 技术研究了不同的孢粉形态特征。在紫菀属物种中，观察到三种类型的花粉（tricolporate、trizonocolporate 和tetracolporate）。三个物种的花粉形状为扁长球状，而在Parthenium hysterophorus和灯笼草。而外壁的雕刻图案则有刺刺、刺刺、刺刺、刺刺和刺刺。Mesocolpium 测量值被计算为Sonchus olecular (16.6 μm) 的最大值。十字花科花粉呈圆形、裂片状、三叶状和外壁呈网状特征。而在Lepidium didymum和Sisymbrium irio 中，主要形状是扁球体，其次是长球体和亚长球体。在Raphanus raphanistrum (14.4 μm) 中注意到 Mesocolpium 距离最高。在紫菀科和十字花科中，Erigeron bonariensis (2.9 μm) 的外壁厚度最大；韭菜外壁测量值为 2.7 μm。研究表明，花粉微形态学对于准确识别和分类属于不同科的不同植物属具有重要作用。基于这些分类孢粉型特征，详细阐述了从 tehsil Esa Khel、Mianwali 的植物群中准确识别物种。
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