Mechanisms and applications of plant growth promoting rhizobacteria: Current perspective
Mechanisms and applications of plant growth promoting rhizobacteria: Current perspective
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DOI：
10.1016/j.jksus.2013.05.001
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发表时间：
2014-01-01
影响因子：
3.8
通讯作者：
Kibret, Mulugeta
中科院分区：
文献类型：
--
作者：
Ahemad, Munees;Kibret, Mulugeta
植物根际促生细菌是指生长在根表周围的土壤细菌，通过在根际附近产生和分泌各种调节性化学物质，直接或间接参与植物生长发育。一般而言，植物促生根际细菌通过直接协助资源获取（氮、磷和必需矿物质）或调节植物激素水平来促进植物生长，或以生防剂的形式间接通过降低各种病原体对植物生长和发育的抑制作用来促进植物生长。各种研究已经证明，在正常和胁迫条件下，通过应用植物生长促进根际细菌，不同植物物种的健康和生产力都得到了提高。有益于植物的根际细菌可以减少全球对破坏农业生态系统稳定的有害农业化学品的依赖。本文综述了根际和植物根际促生细菌的研究现状。并结合近年来的研究进展，对根际细菌促进植物生长的不同机制进行了详细的阐述。最后，这些有益的根际细菌在不同的农业生态系统中的适用性的最新范例已全面提出在正常和胁迫条件下，以突出最近的趋势，旨在发展未来的见解。(C)2013年由Elsevier B制作和主持。五、代表沙特国王大学。
Plant growth promoting rhizobacteria are the soil bacteria inhabiting around/on the root surface and are directly or indirectly involved in promoting plant growth and development via production and secretion of various regulatory chemicals in the vicinity of rhizosphere. Generally, plant growth promoting rhizobacteria facilitate the plant growth directly by either assisting in resource acquisition (nitrogen, phosphorus and essential minerals) or modulating plant hormone levels, or indirectly by decreasing the inhibitory effects of various pathogens on plant growth and development in the forms of biocontrol agents. Various studies have documented the increased health and productivity of different plant species by the application of plant growth promoting rhizobacteria under both normal and stressed conditions. The plant-beneficial rhizobacteria may decrease the global dependence on hazardous agricultural chemicals which destabilize the agro-ecosystems. This review accentuates the perception of the rhizosphere and plant growth promoting rhizobacteria under the current perspectives. Further, explicit outlooks on the different mechanisms of rhizobacteria mediated plant growth promotion have been described in detail with the recent development and research. Finally, the latest paradigms of applicability of these beneficial rhizobacteria in different agro-ecosystems have been presented comprehensively under both normal and stress conditions to highlight the recent trends with the aim to develop future insights. (C) 2013 Production and hosting by Elsevier B. V. on behalf of King Saud University.