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Attaran E, Major IT, Cruz JA, Rosa BA, Koo AJK, Chen J, Kramer DM, He SY, Howe GA. Temporal Dynamics of Growth and Photosynthesis Suppression in Response to Jasmonate Signaling. Plant Physiol 2014; 165:1302-1314. [PMID: 24820026 PMCID: PMC4081338 DOI: 10.1104/pp.114.239004] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 05/11/2014] [Indexed: 05/18/2023]
Abstract
Biotic stress constrains plant productivity in natural and agricultural ecosystems. Repression of photosynthetic genes is a conserved plant response to biotic attack, but how this transcriptional reprogramming is linked to changes in photosynthesis and the transition from growth- to defense-oriented metabolism is poorly understood. Here, we used a combination of noninvasive chlorophyll fluorescence imaging technology and RNA sequencing to determine the effect of the defense hormone jasmonate (JA) on the growth, photosynthetic efficiency, and gene expression of Arabidopsis (Arabidopsis thaliana) rosette leaves. High temporal resolution was achieved through treatment with coronatine (COR), a high-affinity agonist of the JA receptor. We show that leaf growth is rapidly arrested after COR treatment and that this effect is tightly correlated with changes in the expression of genes involved in growth, photosynthesis, and defense. Rapid COR-induced expression of defense genes occurred concomitantly with the repression of photosynthetic genes but was not associated with a reduced quantum efficiency of photosystem II. These findings support the view that photosynthetic capacity is maintained during the period in which stress-induced JA signaling redirects metabolism from growth to defense. Chlorophyll fluorescence images captured in a multiscale time series, however, revealed a transient COR-induced decrease in quantum efficiency of photosystem II at dawn of the day after treatment. Physiological studies suggest that this response results from delayed stomatal opening at the night-day transition. These collective results establish a high-resolution temporal view of how a major stress response pathway modulates plant growth and photosynthesis and highlight the utility of chlorophyll fluorescence imaging for revealing transient stress-induced perturbations in photosynthetic performance.
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Affiliation(s)
- Elham Attaran
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Ian T Major
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Jeffrey A Cruz
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Bruce A Rosa
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Abraham J K Koo
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Jin Chen
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - David M Kramer
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Sheng Yang He
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
| | - Gregg A Howe
- Departments of Energy-Plant Research Laboratory (E.A., I.T.M., J.A.C., B.A.R., A.J.K.K., J.C., D.M.K., S.Y.H., G.A.H.), Computer Sciences and Engineering (B.A.R., J.C.), Biochemistry and Molecular Biology (D.M.K., G.A.H.), and Plant Biology (S.Y.H.), andHoward Hughes Medical Institute-Gordon and Betty Moore Foundation (S.Y.H.), Michigan State University, East Lansing, Michigan 48824
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Koo AJK, Howe GA. Catabolism and deactivation of the lipid-derived hormone jasmonoyl-isoleucine. Front Plant Sci 2012; 3:19. [PMID: 22639640 PMCID: PMC3355578 DOI: 10.3389/fpls.2012.00019] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 01/18/2012] [Indexed: 05/20/2023]
Abstract
The oxylipin hormone jasmonate controls myriad processes involved in plant growth, development, and immune function. The discovery of jasmonoyl-l-isoleucine (JA-Ile) as the major bioactive form of the hormone highlights the need to understand biochemical and cell biological processes underlying JA-Ile homeostasis. Among the major metabolic control points governing the accumulation of JA-Ile in plant tissues are the availability of jasmonic acid, the immediate precursor of JA-Ile, and oxidative enzymes involved in catabolism and deactivation of the hormone. Recent studies indicate that JA-Ile turnover is mediated by a ω-oxidation pathway involving members of the CYP94 family of cytochromes P450. This discovery opens new opportunities to genetically manipulate JA-Ile levels for enhanced resistance to environmental stress, and further highlights ω-oxidation as a conserved pathway for catabolism of lipid-derived signals in plants and animals. Functional characterization of the full complement of CYP94 P450s promises to reveal new pathways for jasmonate metabolism and provide insight into the evolution of oxylipin signaling in land plants.
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Affiliation(s)
- Abraham J. K. Koo
- Department of Energy-Plant Research Laboratory, Michigan State UniversityEast Lansing, MI, USA
- Department of Biochemistry and Molecular Biology, Michigan State UniversityEast Lansing, MI, USA
| | - Gregg A. Howe
- Department of Energy-Plant Research Laboratory, Michigan State UniversityEast Lansing, MI, USA
- Department of Biochemistry and Molecular Biology, Michigan State UniversityEast Lansing, MI, USA
- *Correspondence: Gregg A. Howe, Department of Energy-Plant Research Laboratory, Michigan State University, 122 Plant Biology Building, East Lansing, MI 48824-1312, USA. e-mail:
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Beisson F, Koo AJK, Ruuska S, Schwender J, Pollard M, Thelen JJ, Paddock T, Salas JJ, Savage L, Milcamps A, Mhaske VB, Cho Y, Ohlrogge JB. Arabidopsis genes involved in acyl lipid metabolism. A 2003 census of the candidates, a study of the distribution of expressed sequence tags in organs, and a web-based database. Plant Physiol 2003; 132:681-97. [PMID: 12805597 PMCID: PMC167007 DOI: 10.1104/pp.103.022988] [Citation(s) in RCA: 256] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2003] [Revised: 03/25/2003] [Accepted: 03/28/2003] [Indexed: 05/17/2023]
Abstract
The genome of Arabidopsis has been searched for sequences of genes involved in acyl lipid metabolism. Over 600 encoded proteins have been identified, cataloged, and classified according to predicted function, subcellular location, and alternative splicing. At least one-third of these proteins were previously annotated as "unknown function" or with functions unrelated to acyl lipid metabolism; therefore, this study has improved the annotation of over 200 genes. In particular, annotation of the lipolytic enzyme group (at least 110 members total) has been improved by the critical examination of the biochemical literature and the sequences of the numerous proteins annotated as "lipases." In addition, expressed sequence tag (EST) data have been surveyed, and more than 3,700 ESTs associated with the genes were cataloged. Statistical analysis of the number of ESTs associated with specific cDNA libraries has allowed calculation of probabilities of differential expression between different organs. More than 130 genes have been identified with a statistical probability > 0.95 of preferential expression in seed, leaf, root, or flower. All the data are available as a Web-based database, the Arabidopsis Lipid Gene database (http://www.plantbiology.msu.edu/lipids/genesurvey/index.htm). The combination of the data of the Lipid Gene Catalog and the EST analysis can be used to gain insights into differential expression of gene family members and sets of pathway-specific genes, which in turn will guide studies to understand specific functions of individual genes.
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Affiliation(s)
- Frédéric Beisson
- Department of Plant Biology, Michigan State University, East Lansing 48824, USA
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