Microbial interactions and biocontrol in the rhizosphere
Microbial interactions and biocontrol in the rhizosphere
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DOI：
10.1093/jexbot/52.suppl_1.487
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发表时间：
2001-03-01
影响因子：
6.9
通讯作者：
Whipps, JM
中科院分区：
文献类型：
--
作者：
Whipps, JM
根部有机物质的流失为根部周围根际活跃微生物群的发育提供了能量。一般来说，腐养菌或菌根真菌等生物营养菌在根际生长，以应对这种碳损失，但植物病原体也可能发育并感染易感宿主，导致疾病。本文综述了微生物相互作用，可以发生在根际，并参与生物疾病控制。研究了作为植物细菌和真菌病原体生物防治剂的细菌和作为原生动物、细菌和真菌植物病原体生物防治剂的真菌之间的相互作用。只要有可能，就评估每一种相互作用所涉及的作用方式，特别强调抗生素、竞争、寄生和诱导抗性。探讨了植物生长促进和根际竞争力在生物防治中的重要意义。在许多情况下，与单独使用生物防治剂相比，涉及根际细菌和真菌的多种微生物相互作用显示出增强的生物防治效果。强调了可能发生在根际的相互作用的极端复杂性，并简要讨论了该领域未来研究的一些潜在领域。
The loss of organic material from the roots provides the energy for the development of active microbial populations in the rhizosphere around the root. Generally, saproptrophs or biotrophs such as mycorrhizal fungi grow in the rhizosphere in response to this carbon loss, but plant pathogens may also develop and infect a susceptible host, resulting in disease. This review examines the microbial interactions that can take place in the rhizosphere and that are involved in biological disease control. The interactions of bacteria used as biocontrol agents of bacterial and fungal plant pathogens, and fungi used as biocontrol agents of protozoan, bacterial and fungal plant pathogens are considered. Whenever possible, modes of action involved in each type of interaction are assessed with particular emphasis on antibiosis, competition, parasitism, and induced resistance. The significance of plant growth promotion and rhizosphere competence in biocontrol is also considered. Multiple microbial interactions involving bacteria and fungi in the rhizosphere are shown to provide enhanced biocontrol in many cases in comparison with biocontrol agents used singly. The extreme complexity of interactions that can occur in the rhizosphere is highlighted and some potential areas for future research in this area are discussed briefly.