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PMID: 23060893 Published · epublish English Journal Article

Acyl CoA Binding Proteins are Required for Cuticle Formation and Plant Responses to Microbes.

Frontiers in plant science ·Vol. 3 ·2012-00-00 ·Pages 224

Xia Y, Yu K, Gao QM, Wilson EV, Navarre D, Kachroo P, Kachroo A

Abstract

Fatty acids (FA) and lipids are well known regulators of plant defense. Our previous studies have shown that components of prokaryotic (plastidal) FA biosynthesis pathway regulate various aspects of plant defense. Here, we investigated the defense related roles of the soluble acyl CoA binding proteins (ACBPs), which are thought to facilitate the intracellular transport of FA/lipids. We show that ACBP3 and 4 are required for maintaining normal lipid levels and that ACBP3 contributes to the lipid flux between the prokaryotic and eukaryotic pathways. We also show that loss of ACBP3, 4, or 6 impair normal development of the cuticle and affect both basal and resistance protein-mediated defense against bacterial and fungal pathogens. Loss of ACBP3, 4, or 6 also inhibits the induction of systemic acquired resistance (SAR) due to the plants inability to generate SAR inducing signal(s). Together, these data show that ACBP3, ACBP4, and ACBP6 are required for cuticle development as well as defense against microbial pathogens.

Keywords
acyl CoA binding proteins cuticle fatty acids plant defense systemic acquired resistance
Authors & Affiliations
7 authors, click to expand affiliations / ORCID
Xia Ye
Department of Plant Pathology, University of Kentucky Lexington, KY, USA.
Yu Keshun
Gao Qing-Ming
Wilson Ella V
Navarre Duroy
Kachroo Pradeep
Kachroo Aardra
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Article Info
Journal
Frontiers in plant science
Abbr.
Front Plant Sci
ISSN
1664-462X
DOI
10.3389/fpls.2012.00224
Published
2012-00-00
Epub
2012-00-08
Pages
224
Language
English
Region
Switzerland
NLM ID
101568200
PMCID
PMC3465942
External Links
PubMed source DOI: 10.3389/fpls.2012.00224 PMC Full Text View journal details
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