Department of Food Sciences & Nutrition, College of Food & Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.
Microsc Res Tech. 2023 Dec;86(12):1691-1698. doi: 10.1002/jemt.24408. Epub 2023 Aug 25.
Microscopic techniques can be applied to solve taxonomic problems in the field of plant systematic and are extremely versatile in nature. This study was focused on the new approaches to visualizing the imaging, tool to cover the micro-structural techniques applied to the pollen study of Amaranthaceae floral biology. In this detailed study, we used light microscopy and scanning electron microscopy to examine the shape and changes in pollen of 16 types of Amaranthaceae plants from the salty arid zone of Riyadh Saudi Arabia. We observed subtle variations among the studied species through meticulous examination of morpho-palynological features such as symmetry, size, shape, pore ornamentation, and exine characteristics. The pollen grains were round and had rough or prickly outer coverings. They had different numbers of tiny pores; some were slightly sunken. These findings were utilized to develop a pollen taxonomy key, facilitating accurate identification and classification of Amaranthaceous species. Our results shed light on the taxonomic significance of pollen morphology for species differentiation within the Amaranthaceae family. Furthermore, this study provides valuable insights into the influence of geographical and ecological factors on pollen diversity and evolution. This study of pollen imaging visualization of Amaranthaceous species contributes to the opportunity for taxonomic evaluation and fill knowledge gaps in studies of Amaranthaceous flora identification using classical microscopic taxonomic tools for their accurate identification. RESEARCH HIGHLIGHTS: The pollen characters of selected Amaranthaceae species were visualized using scanning electron microscopy to observe sculptural wall pattern. The comprehensive Amaranthaceous pollen examination approach allowed us to accurately identify their micromorphology. This high-resolution imaging technique provided detailed insights into the surface structures and ornamentation of the pollen grains.
微观技术可用于解决植物系统分类学领域的分类问题,且在本质上极具多样性。本研究侧重于可视化成像的新方法,以及将微结构技术应用于苋科植物花生物学花粉研究的工具。在这项详细的研究中,我们使用了光学显微镜和扫描电子显微镜来检查来自沙特阿拉伯利雅得盐旱区的 16 种苋科植物的花粉的形状和变化。我们通过仔细检查形态花粉学特征,如对称性、大小、形状、孔纹饰和外壁特征,观察到研究物种之间的细微差异。花粉粒呈圆形,外覆有粗糙或多刺的外皮。它们有不同数量的微小孔,有些略微凹陷。这些发现被用来开发花粉分类学关键,以促进对苋科物种的准确鉴定和分类。我们的结果揭示了花粉形态在苋科家族内物种分化中的分类学意义。此外,本研究还提供了有关地理和生态因素对花粉多样性和进化影响的宝贵见解。这项对苋科物种花粉成像可视化的研究为分类评估提供了机会,并填补了使用经典微观分类学工具对苋科植物进行准确鉴定的研究中苋科植物鉴定的知识空白。研究亮点:使用扫描电子显微镜观察纹饰壁模式,对选定的苋科物种的花粉特征进行可视化处理。全面的苋科花粉检查方法使我们能够准确识别其微观形态。这种高分辨率成像技术提供了对花粉粒表面结构和纹饰的详细了解。