期刊
ANNUAL REVIEW OF MICROBIOLOGY
卷 63, 期 -, 页码 363-383出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev.micro.091208.073504
关键词
mycorrhizas; symbiosis; mycorrhizosphere; associated bacteria; endobacteria; genome projects
类别
资金
- Soil-Sink Project
- Compagnia di San Paolo
- CIPE_BIOBIT
- Consiglio Nazionale delle Ricerche
- University of Torino
This review focuses on interactions among plants, mycorrhizal fungi, and bacteria, testing the hypothesis whether mycorrhizas can be defined as tripartite associations. After summarizing the main biological features of mycorrhizas, we illustrate the different types of interaction occurring between mycorrhizal fungi and bacteria, from loosely, associated microbes to endobacteria. We then discuss, in the context of nutritional strategies, the mechanisms that operate among members of the consortium and that often promote plant growth. Release of active molecules, including volatiles, and physical contact among the partners seem important for the establishment of the bacteria/mycorrhizal fungus/plant network. The potential involvement of quorum sensing and Type III secretion systems is discussed, even if the exact nature of the complex interspecies/interphyllum interactions remains unclear.
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