Defense Activated by 9-Lipoxygenase-Derived Oxylipins Requires Specific Mitochondrial Proteins
نویسندگان
چکیده
منابع مشابه
Defense activated by 9-lipoxygenase-derived oxylipins requires specific mitochondrial proteins.
9-Lipoxygenases (9-LOXs) initiate fatty acid oxygenation, resulting in the formation of oxylipins activating plant defense against hemibiotrophic pathogenic bacteria. Previous studies using nonresponding to oxylipins (noxy), a series of Arabidopsis (Arabidopsis thaliana) mutants insensitive to the 9-LOX product 9-hydroxy-10,12,15-octadecatrienoic acid (9-HOT), have demonstrated the importance o...
متن کاملCATEGORY : Plants Interacting with Other Organisms Defense activated by 9 - lipoxygenase - derived oxylipins requires specific mitochondrial proteins
Centro Nacional de Biotecnología-CSIC, Campus Universidad Autónoma, Cantoblanco, E-28049 Madrid, Spain; and 1 Division of Physiological Chemistry II, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-171 77 Stockholm, Sweden. 2 Present address: Energy Biosciences Institute, University of California, Berkeley, CA 94720, USA. 3 Present address: Syngenta CP, CH-4332 Stein...
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13-Lipoxygenase-derived oxylipins, such as jasmonates act as potent signaling molecules in plants. Although experimental evidence supports the impact of oxylipins generated by the 9-Lipoxygenase (9-LOX) pathway in root development and pathogen defense, their signaling function in plants remains largely elusive. Based on the root growth inhibiting properties of the 9-LOX-oxylipin 9-HOT (9-hydrox...
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Arabidopsis thaliana seedling growth with pure oxylipins resulted in root waving, loss of root apical dominance, and decreased root elongation. 9-Hydroxyoctadecatrienoic acid (9-HOT) was a potent inducer of root waving. Studies with noxy2 (for nonresponding to oxylipins2), a new 9-HOT-insensitive mutant, and coronatine insensitive1-1 (jasmonate-insensitive) revealed at least three signaling cas...
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Oxylipins are oxygenated fatty acids that participate in plant development and defense against pathogen infection, insects, and wounding. Initial oxygenation of substrate fatty acids is mainly catalyzed by lipoxygenases (LOXs) and α-dioxygenases but can also take place non-enzymatically by autoxidation or singlet oxygen-dependent reactions. The resulting hydroperoxides are further metabolized b...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2012
ISSN: 1532-2548
DOI: 10.1104/pp.112.207514