Photorespiration
Mostrando 1-12 de 164 artigos, teses e dissertações.
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1. ERRATA
ABSTRACT In 2019, the atmospheric CO2 concentration exceeded the 415 ppm milestone for the first time in the human history. According to projections of the Intergovernmental Panel on Climate Change (IPCC), CO2 levels will continue to rise in the future, potentially affecting all living organisms. Plants with C3 metabolism may benefit from rising CO2 levels b
Braz. Dent. J.. Publicado em: 2020-09
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2. Elevated atmospheric CO2 increases Eucalyptus urophylla S. T. Blake stem diameter by stimulating cell proliferation and reducing lignin deposition
ABSTRACT In 2019, the atmospheric CO2 concentration exceeded the 415 ppm milestone for the first time in the human history. According to projections of the Intergovernmental Panel on Climate Change (IPCC), CO2 levels will continue to rise in the future, potentially affecting all living organisms. Plants with C3 metabolism may benefit from rising CO2 levels b
Acta Bot. Bras.. Publicado em: 2020-09
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3. Defasagem entre as produtividades real e potencial do algodoeiro herbáceo: limitações morfológicas, fisiológicas e ambientais.
Fatores limitantes relacionados com a morfologia, a organografia e arquiteture do algodoeiro herbaceo; fatores limitantes relacionados com -a fisiologia e a bioquimica da planta do algodoeiro herbaceo; fatores limitantes relacionados com as condicoes do ambiente; consideracoes holoticas envolvendo fatores da planta e do ambiente.
Campina Grande: EMBRAPA - CNPA. Publicado em: 2011
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4. Physiological and anatomical characteristics of leaves of two clones of guarana.
The objective of this work was to analyze gas exchange, photosynthetic characteristics, photochemical efficiency of photosystem II and anatomical characteristics of young plant leaves of two guarana (Paullinia cupana) clones (BRS-CG372RC and BRS-CG611RL) growing under open field. The variables of gas exchange and fluorescence of chlorophyll a were evaluated
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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5. Efeitos da inibição da protoporfirinogênio IX oxidase sobre as trocas gasosas e fluorescência da clorofila a em plantas de soja (Glycine max L. Merrill) / Effects of inhibition of protoporphyrinogen oxidase IX on gas exchange and chlorophyll fluorescence of soybean plants (Glycine max L. Merrill)
The photosynthetic fixation of CO2 depends on the capture of light energy by the harvest complex (chlorophyll b and carotenoids), which transfer the energy to the photosystems reaction centers (chlorophyll a). The electrons transfer chain established between the photosystems generates reducing power necessary for the CO2 fixation in the Calvin cycle. The int
Publicado em: 2008
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6. Nitrogen assimilation in Citrus based on CitEST data mining
Assimilation of nitrate and ammonium are vital procedures for plant development and growth. From these primary paths of inorganic nitrogen assimilation, this metabolism integrates diverse paths for biosynthesis of macromolecules, such as amino acids and nucleotides, and the central intermediate metabolism, like carbon metabolism and photorespiration. This pa
Genetics and Molecular Biology. Publicado em: 2007
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7. Caracterização de perfis transcricionais de folhas e da região cambial de Eucalyptus grandis usando o SAGE / Caracterization of Eucalyptus grandis leaves and cambial region transcriptomes using SAGE
Apenas muito recentemente estratégias genômicas e pós-genômicas têm sido utilizadas em estudos de espécies arbóreas importantes na silvicultura. Nos países tropicais, a exemplo do Brasil, as espécies de eucalipto são especialmente importantes nos plantios comerciais principalmente destinados à indústria de papel e celulose. O eucalipto é caracte
Publicado em: 2007
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8. Analise da expressão diferencial de genes de citros em resposta a infecção por Xanthomonas axonopodis pv. citri / Differential gene expression of citrus in response to infection by Xanthomonas axonopodis pv. citri
The citrus canker disease, caused by Xanthomonas axonopodis pv. citri (Xac), has emerged as one of the major threats to the Brazilian citriculture because it affects all commercial citrus varieties, decreases the production and quality of the fruits and can spread rapidly in the citrus growing areas. The symptoms include canker lesions, leading to abscission
Publicado em: 2006
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9. Photoacoustic characterization of plants adapted to different light intensity conditions / Caracterização fotoacustica de plantas crescidas sob diferentes condições de luminosidade
Ilumination level of plants during its growth is determinant for structure of leaves, specially refering to quantity and distribution of chloroplasts. The aim of this project is to use the photoacoustic technique to show physiological differences among plants adapted to different light intensity conditions. Tobacco plants were grown up under two distint irra
Publicado em: 2005
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10. A Re-evaluation of Soybean Leaf Photorespiration 1
Recalculations of soybean photorespiration indicate that mean rates are closer to 16.1 than 5.6 milligrams of CO2 per square decimeter per hour as previously reported. Photorespiration of soybean thus amounts to at least a 30% carbon turnover of light-saturated photosynthesis. Photorespiration showed no significant relationship to net photosynthesis. Negativ
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11. Nitrate assimilation in plant shoots depends on photorespiration
Photorespiration, a process that diminishes net photosynthesis by ≈25% in most plants, has been viewed as the unfavorable consequence of plants having evolved when the atmosphere contained much higher levels of carbon dioxide than it does today. Here we used two independent methods to show that exposure of Arabidopsis and wheat shoots to conditions that in
National Academy of Sciences.
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12. Photorespiration in C3 and C4 Plant Tissue Cultures: Significance of Kranz Anatomy to Low Photorespiration in C4 Plants 1
Photorespiration rates in tissue cultures of a C4 plant, Portulaca oleracea, were compared to those in tissue cultures of a C3 plant, Streptanthus tortuosus. The C4 plant tissue cultures have one-half to one-third the photorespiration rate of the C3 plant tissue cultures and respond to varying O2 concentrations in a manner typical of C4 plants. The results s