Bacteria establish an aqueous living space in plants crucial for virulence

Xiu-Fang Xin, Kinya Nomura, Kyaw Aung, André C. Velásquez, Jian Yao, Freddy Boutrot, Jeff H. Chang, Cyril Zipfel and Sheng Yang He ()
Additional contact information
Xiu-Fang Xin: Plant Research Laboratory, Michigan State University
Kinya Nomura: Plant Research Laboratory, Michigan State University
Kyaw Aung: Plant Research Laboratory, Michigan State University
André C. Velásquez: Plant Research Laboratory, Michigan State University
Jian Yao: Plant Research Laboratory, Michigan State University
Freddy Boutrot: The Sainsbury Laboratory, Norwich Research Park
Jeff H. Chang: Oregon State University
Cyril Zipfel: The Sainsbury Laboratory, Norwich Research Park
Sheng Yang He: Plant Research Laboratory, Michigan State University

Nature, 2016, vol. 539, issue 7630, 524-529

Abstract: Abstract High humidity has a strong influence on the development of numerous diseases affecting the above-ground parts of plants (the phyllosphere) in crop fields and natural ecosystems, but the molecular basis of this humidity effect is not understood. Previous studies have emphasized immune suppression as a key step in bacterial pathogenesis. Here we show that humidity-dependent, pathogen-driven establishment of an aqueous intercellular space (apoplast) is another important step in bacterial infection of the phyllosphere. Bacterial effectors, such as Pseudomonas syringae HopM1, induce establishment of the aqueous apoplast and are sufficient to transform non-pathogenic P. syringae strains into virulent pathogens in immunodeficient Arabidopsis thaliana under high humidity. Arabidopsis quadruple mutants simultaneously defective in a host target (AtMIN7) of HopM1 and in pattern-triggered immunity could not only be used to reconstitute the basic features of bacterial infection, but also exhibited humidity-dependent dyshomeostasis of the endophytic commensal bacterial community in the phyllosphere. These results highlight a new conceptual framework for understanding diverse phyllosphere–bacterial interactions.

Date: 2016
References: Add references at CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.nature.com/articles/nature20166 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:539:y:2016:i:7630:d:10.1038_nature20166

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature20166

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().