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The art of self-control - autoregulation of plant-microbe symbioses


Wang, C and Reid, JB and Foo, E, The art of self-control - autoregulation of plant-microbe symbioses, Frontiers in Plant Science, 9 Article 988. ISSN 1664-462X (2018) [Refereed Article]


Copyright Statement

Copyright 2018 Wang, Reid and Foo. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

DOI: doi:10.3389/fpls.2018.00988


Plants interact with diverse microbes including those that result in nutrient-acquiring symbioses. In order to balance the energy cost with the benefit gained, plants employ a systemic negative feedback loop to control the formation of these symbioses. This is particularly well-understood in nodulation, the symbiosis between legumes and nitrogen-fixing rhizobia, and is known as autoregulation of nodulation (AON). However, much less is understood about the autoregulation of the ancient arbuscular mycorrhizal symbioses that form between Glomeromycota fungi and the majority of land plants. Elegant physiological studies in legumes have indicated there is at least some overlap in the genes and signals that regulate these two symbioses but there are major gaps in our understanding. In this paper we examine the hypothesis that the autoregulation of mycorrhizae (AOM) pathway shares some elements with AON but that there are also some important differences. By reviewing the current knowledge of the AON pathway, we have identified important directions for future AOM studies. We also provide the first genetic evidence that CLV2 (an important element of the AON pathway) influences mycorrhizal development in a non-legume, tomato and review the interaction of the autoregulation pathway with plant hormones and nutrient status. Finally, we discuss whether autoregulation may play a role in the relationships plants form with other microbes.

Item Details

Item Type:Refereed Article
Keywords:autoregulation, symbioses, arbuscular mycorrhiza, tomato, CLV2, nodulation, CLAVATA, CLE peptide
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Environmentally sustainable plant production
Objective Field:Environmentally sustainable plant production not elsewhere classified
UTAS Author:Wang, C (Mr Chenglei Wang)
UTAS Author:Reid, JB (Professor Jim Reid)
UTAS Author:Foo, E (Associate Professor Eloise Foo)
ID Code:128175
Year Published:2018
Funding Support:Australian Research Council (FT140100770)
Web of Science® Times Cited:22
Deposited By:Plant Science
Deposited On:2018-09-06
Last Modified:2019-03-27
Downloads:142 View Download Statistics

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