Storage oil hydrolysis during early seedling growth |
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| Authors: | Anne-Laure Quettier Peter J Eastmond |
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| Institution: | 1. Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China;2. Algae Biotechnology Laboratory, School of Agriculture and Food Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia;3. Phycology Laboratory, Botany Department, Faculty of Science, Mansoura University, Egypt;4. Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, PO Box 156, Archerfield, Queensland 4108, Australia;1. Instituto de Fisiología Vegetal (INFIVE), CONICET-UNLP, cc 327, 1900 La Plata, Argentina;2. Análisis Químico, Facultad de Ciencias Agrarias y Forestales-UNLP, calle 60 y 119, La Plata, Argentina;1. Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Av. Normalistas 800, Colinas de la Normal, Guadalajara, Jalisco 44270, Mexico;2. Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Carretera Guadalajara-Nogales Km 15.5, Zapopan, Jalisco 45110, Mexico;3. Instituto Potosino de Investigación Científica y Tecnológica (IPICYT), Camino a la Presa San José 2055, Col. Lomas 4ª Sección, San Luis Potosí, San Luis Potosí 78216, Mexico;4. CUO–Recherche, Centre de recherche du CHU de Québec and Département d’ophtalmologie, Faculté de médecine, and Regroupement stratégique PROTEO, Université Laval, Québec, Québec, Canada;3. From the Department of Cell Biology, National Institute for Basic Biology, Myodaiji-cho, Okazaki 444-8585, Japan,;4. the Department of Basic Biology, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), Myodaiji-cho, Okazaki 444-8585, Japan,;5. the RIKEN Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan,;8. the Department of Applied Biological Chemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan,;9. the Department of Bioscience, Nagahama Institute of Bio-Science and Technology, 1266 Tamura-Cho, Nagahama 526-0829, Japan,;6. the Graduate School of Biological Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan, and;12. the Laboratory of Biological Diversity, Department of Evolutionary Biology and Biodiversity, National Institute for Basic Biology, Myodaiji-cho, Okazaki 444-8585, Japan |
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| Abstract: | Storage oil breakdown plays an important role in the life cycle of many plants by providing the carbon skeletons that support seedling growth immediately following germination. This metabolic process is initiated by lipases (EC: 3.1.1.3), which catalyze the hydrolysis of triacylglycerols (TAGs) to release free fatty acids and glycerol. A number of lipases have been purified to near homogeneity from seed tissues and analysed for their in vitro activities. Furthermore, several genes encoding lipases have been cloned and characterised from plants. However, only recently has data been presented to establish the molecular identity of a lipase that has been shown to be required for TAG breakdown in seeds. In this review we briefly outline the processes of TAG synthesis and breakdown. We then discuss some of the biochemical literature on seed lipases and describe the cloning and characterisation of a lipase called SUGAR-DEPENDENT1, which is required for TAG breakdown in Arabidopsis thaliana seeds. |
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