Plant small monomeric G-proteins (RAC/ROPs) of barley are common elements of susceptibility to fungal leaf pathogens, cell expansion and stomata development

Indira Priyadarshini Pathuri; Ruth Eichmann; Ralph Hückelhoven

doi:10.4161/psb.4.2.7477

Plant small monomeric G-proteins (RAC/ROPs) of barley are common elements of susceptibility to fungal leaf pathogens, cell expansion and stomata development

Indira Priyadarshini Pathuri, Ruth Eichmann, Ralph Hückelhoven

Chair of Phytopathology

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Small monomeric RAC/ROP GTPases act as molecular switches in signal transduction processes of plant development and stress responses. They emerged as crucial players in plant-pathogen interactions either by supporting susceptibility or resistance. In a recent publication, we showed that constitutively activated (CA) mutants of different barley (Hordeum vulgare) RAC/ROPs regulate susceptibility to barley fungal leaf pathogens of different life style in a contrasting way. This illustrates the distinctive signalling roles of RAC/ROPs for different plant-pathogen combinations. We also reported the involvement of RAC/ROPs in plant epidermis development in a monocotyledonous plant. Here we further discuss a failure of CA HvRAC/ROP-expressing barley to normally develop stomata.

Original language	English
Pages (from-to)	109-110
Number of pages	2
Journal	Plant Signaling and Behavior
Volume	4
Issue number	2
DOIs	https://doi.org/10.4161/psb.4.2.7477
State	Published - Feb 2009

Keywords

Cell expansion
G-proteins
Hordeum vulgare
RAC
ROP
Stomata
Transpiration

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10.4161/psb.4.2.7477

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title = "Plant small monomeric G-proteins (RAC/ROPs) of barley are common elements of susceptibility to fungal leaf pathogens, cell expansion and stomata development",

abstract = "Small monomeric RAC/ROP GTPases act as molecular switches in signal transduction processes of plant development and stress responses. They emerged as crucial players in plant-pathogen interactions either by supporting susceptibility or resistance. In a recent publication, we showed that constitutively activated (CA) mutants of different barley (Hordeum vulgare) RAC/ROPs regulate susceptibility to barley fungal leaf pathogens of different life style in a contrasting way. This illustrates the distinctive signalling roles of RAC/ROPs for different plant-pathogen combinations. We also reported the involvement of RAC/ROPs in plant epidermis development in a monocotyledonous plant. Here we further discuss a failure of CA HvRAC/ROP-expressing barley to normally develop stomata.",

keywords = "Cell expansion, G-proteins, Hordeum vulgare, RAC, ROP, Stomata, Transpiration",

author = "Pathuri, {Indira Priyadarshini} and Ruth Eichmann and Ralph H{\"u}ckelhoven",

note = "Funding Information: This work was supported by the German Research Foundation (DFG-HU886/1-3), and by the German Academic Exchange",

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doi = "10.4161/psb.4.2.7477",

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AU - Pathuri, Indira Priyadarshini

AU - Eichmann, Ruth

AU - Hückelhoven, Ralph

N1 - Funding Information: This work was supported by the German Research Foundation (DFG-HU886/1-3), and by the German Academic Exchange

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AB - Small monomeric RAC/ROP GTPases act as molecular switches in signal transduction processes of plant development and stress responses. They emerged as crucial players in plant-pathogen interactions either by supporting susceptibility or resistance. In a recent publication, we showed that constitutively activated (CA) mutants of different barley (Hordeum vulgare) RAC/ROPs regulate susceptibility to barley fungal leaf pathogens of different life style in a contrasting way. This illustrates the distinctive signalling roles of RAC/ROPs for different plant-pathogen combinations. We also reported the involvement of RAC/ROPs in plant epidermis development in a monocotyledonous plant. Here we further discuss a failure of CA HvRAC/ROP-expressing barley to normally develop stomata.

KW - Cell expansion

KW - G-proteins

KW - Hordeum vulgare

KW - RAC

KW - ROP

KW - Stomata

KW - Transpiration

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Plant small monomeric G-proteins (RAC/ROPs) of barley are common elements of susceptibility to fungal leaf pathogens, cell expansion and stomata development

Abstract

Keywords

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