Isoprenoid Pigments
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Biological characterization of the toxic effects of extracts of liquid cultures of Leifsonia xyli subsp. xyli on the germination of lettuce seeds / Caracterização do efeito tóxico de extrato de culturas líquidas de Leifsonia xyli subsp. xyli na germinação de sementes de alface
Este estudo avaliou os efeitos de extratos de culturas líquidas de Leifsonia xyli subsp. xyli (Lxx) cultivada sob condições de estresse osmótico e na presença de inibidores da rota não-mevalonato (MEP/DOXP) de síntese de pigmentos isoprenóides, na germinação de sementes de alface. Também avaliou a relação entre o efeito tóxico dos extratos e a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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2. Functional Analysis of the Final Steps of the 1-Deoxy-d-xylulose 5-phosphate (DXP) Pathway to Isoprenoids in Plants Using Virus-Induced Gene Silencing1
Isoprenoid biosynthesis in plant plastids occurs via the 1-deoxy-d-xylulose 5-phosphate (DXP) pathway. We used tobacco rattle virus (TRV) to posttranscriptionally silence the expression of the last two enzymes of this pathway, the IspG-encoded (E)-4-hydroxy-3-methylbut-2-enyl diphosphate synthase (HDS) and the IspH-encoded isopentenyl/dimethylallyl diphospha
American Society of Plant Biologists.
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3. The molecular mechanism of excitation in visual transduction and bacteriorhodopsin
An electronic theory of excitation is proposed and described in terms of a three-dimensional excited/ground-state energy surface which elucidates the photochemical and excited-state dynamics of rhodopsins. In this theory the primary action of light is to produce significant electron redistribution in the retinal, thereby generating new interactions that vibr
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4. Conserved enzymes mediate the early reactions of carotenoid biosynthesis in nonphotosynthetic and photosynthetic prokaryotes.
Carotenoids comprise one of the most widespread classes of pigments found in nature. The first reactions of C40 carotenoid biosynthesis proceed through common intermediates in all organisms, suggesting the evolutionary conservation of early enzymes from this pathway. We report here the nucleotide sequence of three genes from the carotenoid biosynthesis gene