PMID: 8580761Jan 1, 1995Paper

Acclimation of Arabidopsis thaliana to the light environment: regulation of chloroplast composition

Planta
Robin G Walters, Peter Horton

Abstract

The regulation by light of the composition of the photosynthetic apparatus was investigated in Arabidopsis thaliana (L.) Heynh. cv. Landsberg erecta. When grown in high- and low-irradiance white light, wild-type plants and photomorphogenic mutants showed large differences in their maximum photosynthetic rate and chlorophyll a/b ratios; such changes were abolished by growth in red light. Photosystem I (PSI) and PSII levels were measured in wild-type plants grown under a range of light environments; the results indicate that regulation of photosystem stoichiometry involves the specific detection of blue light. Supplementing red growth lights with low levels of blue light led to large increases in PSII content, while further increases in blue irradiance had the opposite effect; this latter response was abolished by the hy4 mutation, which affects certain events controlled by a blue-light receptor. Mutants defective in the phytochrome photoreceptors retained regulation of photosystem stoichiometry. We discuss the results in terms of two separate responses controlled by blue-light receptors: a blue-high-fluence response which controls photosystem stoichiometry; and a blue-low-fluence response necessary for activation of such control...Continue Reading

Citations

Jul 6, 2001·The Plant Journal : for Cell and Molecular Biology·S PursiheimoE M Aro
Nov 27, 2009·Plant Physiology·Kleovoulos AthanasiouGiles N Johnson
Aug 10, 2006·Proceedings of the National Academy of Sciences of the United States of America·Legong LiSheng Luan
Jun 15, 2007·Proceedings of the National Academy of Sciences of the United States of America·Anthony GobertFrans J M Maathuis
Mar 17, 1999·Proceedings of the National Academy of Sciences of the United States of America·L BrüggemannR Hedrich
May 30, 1998·Proceedings of the National Academy of Sciences of the United States of America·Z M PeiJ I Schroeder
Dec 25, 2012·Plant Physiology and Biochemistry : PPB·Lorenzo FerroniSimonetta Pancaldi
Jan 5, 2013·Journal of Plant Physiology·Weronika WituszyńskaStanisław Karpiński
Jul 16, 2013·Plant Science : an International Journal of Experimental Plant Biology·Junli HuangGuixue Wang
Jul 29, 1998·The Plant Journal : for Cell and Molecular Biology·D A Christopher, P H Hoffer
Apr 20, 2019·Frontiers in Plant Science·Samuel Eichhorn BilodeauMark Lefsrud
Aug 30, 2020·International Journal of Molecular Sciences·Swee-Suak KoMing-Che Shih
Oct 30, 2020·The Plant Journal : for Cell and Molecular Biology·Sarah E FlanneryMatthew P Johnson
Nov 1, 2020·International Journal of Molecular Sciences·Swee-Suak KoMing-Che Shih
May 4, 2021·Frontiers in Plant Science·Armida GjindaliPablo I Calzadilla
Aug 28, 2021·Life·Débora ParrineMark Lefsrud

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