红树林生态系统根缘植物促生菌及其在可持续生物技术中的应用

IF 2.1 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Indian Journal of Microbiology Pub Date : 2025-03-01 Epub Date: 2024-11-19 DOI:10.1007/s12088-024-01416-1
Gobinda Dey, Hina Upadhyay, Jyoti Prakash Maity, Chien-Yen Chen, Shan-Li Wang, Atreyee Sinha, Arindam Chakraborty
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引用次数: 0

摘要

红树林是一个独特的过渡带,其特点是其特殊的栖息地和极端的环境条件,包括高盐度、潮汐波动、高温、低氧水平和内涝。虽然这些压力源给红树林带来了许多挑战,但植物已经进化出适应机制来应对这种恶劣的条件。至关重要的是,与根系相关的微生物群落,特别是植物生长促进细菌(PGPB),在帮助红树林植物抵御这些不利条件方面起着至关重要的作用,突出了对红树林恢复力至关重要的共生关系。本研究旨在探讨红树林生态系统中与根相关的PGPB,重点关注它们的作用和潜在的生物技术应用。研究发现,这些从红树林中分离出来的不同种类的PGPB具有促进植物生长的特性,包括固氮、溶解磷和钾,以及产生有益的化合物,如植物激素、外多糖和挥发性有机化合物。这些性状不仅有助于植物的生长发育,而且有助于植物对各种胁迫,特别是盐度的抗逆性。它们有助于维持营养和离子平衡,调节激素水平,提供渗透保护,减轻氧化应激,增强红树林生态系统对病原体的抵抗力。此外,该研究还强调了这些微生物在促进盐碱化环境中可持续农业实践、加强环境修复工作和支持红树林再造林等方面的生物技术应用前景。总之,利用红树林植物与其根相关的PGPB之间的共生关系,为应对当代环境挑战提供了创新、可持续的解决方案,为增强生态系统的复原力和生产力铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Root-Associated Plant Growth-Promoting Bacteria in Mangrove Ecosystem and its Application in Sustainable Biotechnology.

Mangroves are distinguished as a unique ecotone, characterized by their specialized habitat and extreme environmental conditions, including high salinity, tidal fluctuations, elevated temperatures, low oxygen levels, and waterlogging. While these stressors impose numerous challenges on mangroves, the plants have evolved adaptive mechanisms to cope with such harsh conditions. Crucially, the root-associated microbial community, particularly plant growth-promoting bacteria (PGPB), plays an essential role in aiding mangrove plants to withstand these adverse conditions, highlighting the symbiotic relationship vital for mangrove resilience. The study aims to explore the root-associated PGPB in mangrove ecosystems, focusing on their roles and potential biotechnological applications. It has been found that these diverse PGPB, isolated from mangroves, exhibited plant growth-promoting properties, including nitrogen fixation, solubilization of phosphorus and potassium, and the production of beneficial compounds such as phytohormones, exopolysaccharides, and volatile organic compounds. These traits of PGPB contribute not only to plant growth and development but also to resilience against various stresses, especially salinity. They aid in maintaining nutrient and ionic balance, modulating hormonal levels, providing osmoprotection, mitigating oxidative stress, and enhancing resistance to pathogens within the mangrove ecosystem. Moreover, the study highlights the promising biotechnological applications of these microbes in promoting sustainable agricultural practices in saline environments, enhancing environmental remediation efforts, and supporting mangrove reforestation initiatives. In conclusion, leveraging the symbiotic relationships between mangrove plants and their root-associated PGPB offers innovative, sustainable solutions to contemporary environmental challenges, paving the way for enhanced ecosystem resilience and productivity.

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来源期刊
Indian Journal of Microbiology
Indian Journal of Microbiology BIOTECHNOLOGY & APPLIED MICROBIOLOGY-MICROBIOLOGY
CiteScore
6.00
自引率
10.00%
发文量
51
审稿时长
1 months
期刊介绍: Indian Journal of Microbiology is the official organ of the Association of Microbiologists of India (AMI). It publishes full-length papers, short communication reviews and mini reviews on all aspects of microbiological research, published quarterly (March, June, September and December). Areas of special interest include agricultural, food, environmental, industrial, medical, pharmaceutical, veterinary and molecular microbiology.
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