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	Provedor de dados Braz. J. Plant Physiol. (1) Autor Kasturi Bai,K.V. (1) Naresh,Kumar S. (1) Palavra-chave Chlorophyll fluorescence (1) Cocos nucifera (1) Gas exchange (1) Lipid peroxidation (1) Oxidative stress (1) Photosynthesis (1) Proteins (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Ano 2009 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Photo-oxidative stress in coconut seedlings: early events to leaf scorching and seedling death Braz. J. Plant Physiol. Naresh,Kumar S.; Kasturi Bai,K.V.. Experiments were conducted on coconut seedlings to delineate events of photo-oxidative stress damage. Studies on chlorophyll fluorescence indicated a clear case of excess light energy under high light conditions causing stress to coconut seedlings raised under coconut palms. Quantum yield of photo-chemistry of leaflets exposed to high light was significantly less than those under shade. Seedlings exposed to high light and then shifted to shade have shown significant improvement in quantum yield. Excess light energy harvested by chlorophyll antenna caused high non-photochemical quenching resulting in production of biologically toxic super oxide, hydrogen peroxide and hydroxyl radicals. It is apparent that photoinhibition of photosynthesis takes place due to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Cocos nucifera; Chlorophyll fluorescence; Oxidative stress; Photosynthesis; Lipid peroxidation; Gas exchange; Proteins. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000300006 Registros recuperados: 1 Primeira ... 1 ... Última

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