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Speak, friend, and enter: signalling systems that promote beneficial symbiotic associations in plants

Many plants engage in symbiotic associations with microorganisms, in which the interactions are beneficial to both partners. Two of the best studied partnerships are rhizobial and mycorrhizal colonization. Giles Oldroyd highlights the commonalities in the symbiosis signalling pathways involved in these associations and how, despite these commonalities, sufficient specificity is maintained to ensure appropriate responses to each symbiont.

Giles E. D. Oldroyd
Reviews15 Mar 2013
Nature Reviews Microbiology

Volume: 11, P: 252-263
Engineering transkingdom signalling in plants to control gene expression in rhizosphere bacteria

The root microbiota is critical for promoting crop yield. Here, the authors create a synthetic pathway for the production of the rhizopine scyllo-inosamine in Medicago truncatula and barley, and show its perception by rhizosphere bacteria for targeted regulation of bacterial gene expression.

Barney A. Geddes
Ponraj Paramasivan
Philip S. Poole
ResearchOpen Access31 Jul 2019
Nature Communications

Volume: 10, P: 1-11
Nodulation independent of rhizobia induced by a calcium-activated kinase lacking autoinhibition

Cynthia Gleason
Shubho Chaudhuri
Giles E. D. Oldroyd
Research29 Jun 2006
Nature

Volume: 441, P: 1149-1152
A protein complex required for polar growth of rhizobial infection threads

Many legumes accommodate rhizobial symbionts via transcellular infection threads. Here the authors show that in Medicago root hairs, polar growth of the infection thread requires a tip-localized protein complex consisting of VPY and VPY-like proteins that are stabilized by the E3 ligase LIN, as well as an exocyst complex subunit.

Cheng-Wu Liu
Andrew Breakspear
Jeremy D. Murray
ResearchOpen Access28 Jun 2019
Nature Communications

Volume: 10, P: 1-17
A combination of chitooligosaccharide and lipochitooligosaccharide recognition promotes arbuscular mycorrhizal associations in Medicago truncatula

Polysaccharide molecules chitooligosaccharides (COs) and peptidoglycan not only activate plant immunity but also trigger plant symbiosis signalling. Here the authors show that a combination of COs and lipochitooligosaccharides (LCOs) act synergistically to suppress immunity and promote symbiosis to facilitate beneficial fungal associations.

Feng Feng
Jongho Sun
Giles E. D. Oldroyd
ResearchOpen Access06 Nov 2019
Nature Communications

Volume: 10, P: 1-12
Nutrient regulation of lipochitooligosaccharide recognition in plants via NSP1 and NSP2

Lipochitooligosaccharide (LCO) perception by legumes is required to establish symbiotic relationships with nitrogen fixing bacteria. Here the authors show that nutrient starvation can activate LCO perception in cereals to promote symbiotic association with arbuscular mycorrhizal fungi.

Xin-Ran Li
Jongho Sun
Giles E. D. Oldroyd
ResearchOpen Access28 Oct 2022
Nature Communications

Volume: 13, P: 1-15
An ancestral signalling pathway is conserved in intracellular symbioses-forming plant lineages

An extensive phylogenomics study based on hundreds of genomes and transcriptomes provides a new interpretation of the evolution of different types of symbiotic associations in land plants, and reveals a conserved ancestral symbiosis pathway.

Guru V. Radhakrishnan
Jean Keller
Pierre-Marc Delaux
Research02 Mar 2020
Nature Plants

Volume: 6, P: 280-289
The Medicago genome provides insight into the evolution of rhizobial symbioses

Sequencing of Medicago truncatula, a model organism of legume biology, shows that genome duplications had a role in the evolution of endosymbiotic nitrogen fixation.

Nevin D. Young
Frédéric Debellé
Bruce A. Roe
ResearchOpen Access16 Nov 2011
Nature

Volume: 480, P: 520-524
The calcium-permeable channel OSCA1.3 regulates plant stomatal immunity

A study in Arabidopsis thaliana shows that the immune receptor-associated cytosolic kinase BIK1 phosphorylates OSCA1.3 and identifies OSCA1.3 as the pathogen-responsive Ca²⁺-permeable channel that regulates stomatal closure.

Kathrin Thor
Shushu Jiang
Cyril Zipfel
Research26 Aug 2020
Nature

Volume: 585, P: 569-573
Calcium, kinases and nodulation signalling in legumes

Giles E. D. Oldroyd
J. Allan Downie
Reviews01 Jul 2004
Nature Reviews Molecular Cell Biology

Volume: 5, P: 566-576
The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice

Signaling via the D14L karrikin receptor conditions rice roots for association with arbuscular mycorrhizal fungi. Here, Choi et al. show that SMAX1, a rice homolog of an Arabidopsis repressor of karrikin signaling, acts downstream of D14L to suppress mycorrhizal symbiosis and strigolactone biosynthesis.

Jeongmin Choi
Tak Lee
Uta. Paszkowski
ResearchOpen Access30 Apr 2020
Nature Communications

Volume: 11, P: 1-13
Publisher Correction: The calcium-permeable channel OSCA1.3 regulates plant stomatal immunity

Kathrin Thor
Shushu Jiang
Cyril Zipfel
Amendments and Corrections17 Nov 2020
Nature

Volume: 588, P: E4
Genetic strategies for improving crop yields

Genetic strategies for improving the yield and sustainability of agricultural crops, and the resilience of crops in the face of biotic and abiotic stresses contingent on projected climate change, are evaluated.

Julia Bailey-Serres
Jane E. Parker
Julian I. Schroeder
Reviews06 Nov 2019
Nature

Volume: 575, P: 109-118
Plant signalling in symbiosis and immunity

Cyril Zipfel
Giles E. D. Oldroyd
Reviews16 Mar 2017
Nature

Volume: 543, P: 328-336
Red clover (Trifolium pratense L.) draft genome provides a platform for trait improvement

Jose J. De Vega
Sarah Ayling
Leif Skøt
ResearchOpen Access30 Nov 2015
Scientific Reports

Volume: 5, P: 1-10
A DELLA protein complex controls the arbuscular mycorrhizal symbiosis in plants

Nan Yu
Dexian Luo
Ertao Wang
Correspondence17 Dec 2013
Cell Research

Volume: 24, P: 130-133

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Speak, friend, and enter: signalling systems that promote beneficial symbiotic associations in plants

Engineering transkingdom signalling in plants to control gene expression in rhizosphere bacteria

Nodulation independent of rhizobia induced by a calcium-activated kinase lacking autoinhibition

A protein complex required for polar growth of rhizobial infection threads

A combination of chitooligosaccharide and lipochitooligosaccharide recognition promotes arbuscular mycorrhizal associations in Medicago truncatula

Nutrient regulation of lipochitooligosaccharide recognition in plants via NSP1 and NSP2

An ancestral signalling pathway is conserved in intracellular symbioses-forming plant lineages

The Medicago genome provides insight into the evolution of rhizobial symbioses

The calcium-permeable channel OSCA1.3 regulates plant stomatal immunity

Calcium, kinases and nodulation signalling in legumes

The negative regulator SMAX1 controls mycorrhizal symbiosis and strigolactone biosynthesis in rice

Publisher Correction: The calcium-permeable channel OSCA1.3 regulates plant stomatal immunity

Genetic strategies for improving crop yields

Plant signalling in symbiosis and immunity

Red clover (Trifolium pratense L.) draft genome provides a platform for trait improvement

A DELLA protein complex controls the arbuscular mycorrhizal symbiosis in plants

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