Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune, India.
Symbiosis Centre for Waste Resource Management, Symbiosis International (Deemed University), 412115, Lavale, Pune, India.
World J Microbiol Biotechnol. 2023 Feb 11;39(4):96. doi: 10.1007/s11274-023-03543-1.
Plant-associated microorganisms play a critical role in plant survival and functional attributes. There are many studies on the taxonomical and functional aspects of microorganisms associated with terrestrial plants. However, the microbiome of aquatic plants is not much explored. This work details the studies on microbiomes and diversity in microbial communities inhabiting the three common free-floating aquatic plants of tropical regions viz. duckweed, water hyacinth and water lettuce, widely implicated for their bioremediation potential. Studies conducted till date reveal the prevalence and dominance of different Bacillus sp. Other genera, including Rhodanobacter, Pseudomonas, Rhizobium, Achromobacter, Serratia, Actinobacteria, Proteobacter, Klebsiella and Acidobacteria, have also been prominently reported. This lesser explored niche offers great bioprospecting opportunities to obtain taxonomically diverse and functionally distinct microorganisms. Bacterial endophytes from these aquatic plants have been primarily studied for their ability to produce indole acetic acid and degrade phenol. Limited studies reveal some fungal endophytes to have promising herbicidal effect. Not much is known on other functional attributes and hence microbial studies on these plants holds much promise for obtaining novel isolates or isolates with novel functions that would impact both aquatic and terrestrial ecosystems. This study proposes the need for exploring the role of endophytes as biocontrol agents and their potential to provide a pragmatic and robust solution to the aquatic weed menace in freshwater bodies. Bioprospecting of this lesser studied ecological niche hence is a promising field of research that has both environmental and economic potential.
植物相关微生物在植物的生存和功能属性中起着至关重要的作用。已有许多关于与陆生植物相关的微生物分类学和功能方面的研究。然而，水生植物的微生物组并没有得到太多的探索。这项工作详细介绍了栖息在热带地区三种常见自由漂浮水生植物（浮萍、水葫芦和水芹菜）中的微生物组和微生物群落多样性的研究，这些植物广泛被认为具有生物修复潜力。迄今为止进行的研究表明，不同的芽孢杆菌属（Bacillus sp.）普遍存在且占优势。其他属，包括 Rhodanobacter、Pseudomonas、Rhizobium、Achromobacter、Serratia、Actinobacteria、Proteobacter、Klebsiella 和 Acidobacteria，也有突出报道。这个较少探索的生态位提供了很好的生物勘探机会，可以获得分类多样和功能独特的微生物。这些水生植物的细菌内生菌主要因其产生吲哚乙酸和降解苯酚的能力而被研究。有限的研究表明，一些真菌内生菌具有有希望的除草效果。关于其他功能属性知之甚少，因此，对这些植物的微生物研究有望获得具有新颖功能的新型分离株或分离株，这将对水生和陆地生态系统都产生影响。本研究提出了需要探索内生菌作为生物防治剂的作用及其为淡水体中水生杂草威胁提供实用和稳健解决方案的潜力。因此，对这个较少研究的生态位进行生物勘探是一个具有环境和经济潜力的有前途的研究领域。
