Informační systém MU
VERCRUYSSEN, Liesbeth, Vanesa Beatriz TOGNETTI, Nathalie GONZALEZ, Judith VAN DINGENEN, Liesbeth DE MILDE, Agnieszka BIELACH, Riet DE RYCKE, Frank VAN BREUSEGEM and Dirk INZE. GROWTH REGULATING FACTOR5 Stimulates Arabidopsis Chloroplast Division, Photosynthesis, and Leaf Longevity. Plant Physiology. Rockville (USA): American Society of Plant Physiologists, 2015, vol. 167, No 3, p. "817"-"+", 24 pp. ISSN 0032-0889. doi:10.1104/pp.114.256180.
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Basic information
Original name GROWTH REGULATING FACTOR5 Stimulates Arabidopsis Chloroplast Division, Photosynthesis, and Leaf Longevity
Authors VERCRUYSSEN, Liesbeth (56 Belgium), Vanesa Beatriz TOGNETTI (380 Italy, guarantor, belonging to the institution), Nathalie GONZALEZ (724 Spain), Judith VAN DINGENEN (56 Belgium), Liesbeth DE MILDE (56 Belgium), Agnieszka BIELACH (616 Poland, belonging to the institution), Riet DE RYCKE (56 Belgium), Frank VAN BREUSEGEM (56 Belgium) and Dirk INZE (56 Belgium).
Edition Plant Physiology, Rockville (USA), American Society of Plant Physiologists, 2015, 0032-0889.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 6.280
RIV identification code RIV/00216224:14740/15:00084345
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1104/pp.114.256180
UT WoS 000354413900018
Keywords in English CYTOKININ SIGNAL-TRANSDUCTION; B RESPONSE REGULATORS; PORC DOUBLE MUTANT; TRANSCRIPTION FACTORS; PROTOCHLOROPHYLLIDE OXIDOREDUCTASE; CELL-PROLIFERATION; ABSCISIC-ACID; CHLOROPHYLL BIOSYNTHESIS; PROTEIN INTERACTIONS; NEGATIVE REGULATOR
Tags OA, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Eva Špillingová, učo 110713. Changed: 1. 4. 2016 10:27.
Abstract
Arabidopsis (Arabidopsis thaliana) leaf development relies on subsequent phases of cell proliferation and cell expansion. During the proliferation phase, chloroplasts need to divide extensively, and during the transition from cell proliferation to expansion, they differentiate into photosynthetically active chloroplasts, providing the plant with energy. The transcription factor GROWTH REGULATING FACTOR5 (GRF5) promotes the duration of the cell proliferation period during leaf development. Here, it is shown that GRF5 also stimulates chloroplast division, resulting in a higher chloroplast number per cell with a concomitant increase in chlorophyll levels in 35S: GRF5 leaves, which can sustain higher rates of photosynthesis. Moreover, 35S: GRF5 plants show delayed leaf senescence and are more tolerant for growth on nitrogen-depleted medium. Cytokinins also stimulate leaf growth in part by extending the cell proliferation phase, simultaneously delaying the onset of the cell expansion phase. In addition, cytokinins are known to be involved in chloroplast development, nitrogen signaling, and senescence. Evidence is provided that GRF5 and cytokinins synergistically enhance cell division and chlorophyll retention after dark-induced senescence, which suggests that they also cooperate to stimulate chloroplast division and nitrogen assimilation. Taken together with the increased leaf size, ectopic expression of GRF5 has great potential to improve plant productivity.
Links
EE2.3.20.0043, research and development projectName: Rozvoj lidských zdrojů pro výzkum, vývoj a inovace v oblasti genomiky a proteomiky rostlinných systémů
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