厄运(L.)是一种有价值的药用植物。然而,其药用功效可能受到双生病毒感染的影响。因此,在用作药物之前,鉴定健康标本是必不可少的。本研究通过光学和扫描电子显微镜研究表观形态和微观特征,提供了双生病毒感染和健康艾尔巴植物的分类学特征。在分类学鉴定之前,通过双生病毒的分子检测将感染和健康标本分离。形态学研究结果表明,感染双生病毒的艾尔巴植物表现出系统的感染症状,如发育迟缓,叶子的扭曲和萎黄,根的大小减小,枝条和水果,等等,与健康样本相比。解剖学发现报告说,在植物中,都存在具有多细胞疣毛状体的气孔类型和无核类型。然而,在定量测量中观察到了变化,如毛状体的大小,表皮,附属和保卫细胞。孢粉学观察发现,两种植物都具有三孔型花粉,但主要在花粉的大小和形状上观察到变异。内外的厚度,市盈率,孔径,种间差异,Colpi的大小,和花粉装饰。总体而言,这项研究得出的结论是,健康和受感染的E.alba在定性分类特征方面没有太多的变化。但可以在数量分类证据方面加以区分。建议将未来的研究用于健康和病毒感染植物的药理分析。研究重点:旱莲草具有令人难以置信的治疗价值,但是由于双生病毒感染,植物受到了严重的影响。因此,本研究对双生病毒感染和健康植物物种进行了全面的分类报告。
Eclipta alba (L.) is a valuable medicinal plant. However, its medicinal efficacy can be affected by geminivirus infection. Therefore, identification of healthy specimen is essential before to use as medicine. The present study provided the taxonomic characterization of geminivirus infected and healthy E. alba plant by studying apparent morphology and microscopic features through light and scanning electron microscopy. Before taxonomic characterization infected and healthy specimens were separated through molecular detection of geminivirus. Results of morphological studies reported that geminivirus infected E. alba plant showed systematic symptoms of infection like stunted growth, distortion and chlorosis of leaves, decrease in size of root, shoot and fruit, and so forth in comparison to healthy specimen. Anatomical findings reported that in both plants anomocytic and anisocytic types of stomata with multicellular warty trichomes were present. However, variations were observed in quantitative measures such as size of trichomes, epidermal, subsidiary and guard cells. Palynological observations identifies that both plants possessed tricolporate type of pollen but variation was mainly observed in size and shape of pollen, thickness of exine and intine, P/E ratio, pore size, interspecific difference, size of colpi, and pollen ornamentation. Overall this study concluded that both healthy and infected E. alba do not reported much variations in qualitative taxonomic features, but can be differentiated in terms of quantitative taxonomic evidences. Future studies are recommended for pharmacological analysis of both healthy and virus infected plants. RESEARCH HIGHLIGHTS: Eclipta alba has incredible therapeutic worth, but due to geminivirus infection the plant is affecting badly. Hence, the present studies give a comprehensive taxonomic report on the geminivirus infected and healthy plant species.