Etiolation
Mostrando 1-12 de 43 artigos, teses e dissertações.
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1. Avances en la propagación del aguacate
Abstract Being the avocado a highly cross-pollinated and heterozygous species, its multiplication from seeds produces a highly variable progeny in relation to the morphological and biological characteristics of the parents. Therefore, the adoption of more efficient propagation methods for obtaining higher quality seedlings in terms of production and disease
Rev. Bras. Frutic.. Publicado em: 03/12/2018
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2. Estudo para o estabelecimento de uma nova estratégia de clonagem in vitro de Cattleya e Cymbidium (Orchidaceae) por meio da utilização de gemas laterais de caules estiolados / Study to develop a new strategy to in vitro propagation of Cattleya and Cymbidium (Orchidaceae) using the lateral buds of etiolated shoot
Catasetum fimbriatum (Morren) Lindl. é uma orquídea estudada no Laboratório de Fisiologia Vegetal do IBUSP desde 1990. As plantas deste gênero, quando incubadas in vitro no escuro, apresentam crescimento contínuo do caule na ausência de qualquer regulador de crescimento. Quando as gemas laterais dos caules estiolados são isoladas e incubadas na presen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2012
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3. Residual effect of growth regulators in etiolation and regeneration of in vitro pineapple plants.
This work aimed to evaluate the influence of naphthaleneacetic acid (NAA) and gibberellic acid (GA3) plant regulators in in vitro etiolation and subsequent regeneration of the PE x SC-60 pineapple hybrid. Nodal segments of in vitro plants with approximately 5-7 cm height were incubated in basic MS culture medium supplemented with 0.0; 0.5 and 1.0 mg L-1 of n
Revista Brasileira de Fruticultura. Publicado em: 2011
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4. The agroecological transition in rice-fish growing : the case from 25 of november settlement, Capão do Leão, RS. / A transição agroecológica em rizipiscicultura : o caso do assentamento 25 de novembro, Capão do Leão, RS.
Rice-fish growing, based on agroecology, combines the cultivation of irrigated rice and the growing of fish, in the absence of pesticides. Two situations occur: the simultaneous in which rice and fish are grown together and the alternate, which intercalates fish and rice. In a participative work, a reference experiment was installed for the agroecological tr
Publicado em: 2007
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5. MicropropagaÃÃo e aspectos da anatomia foliar da figueira Roxo de Valinhos em diferentes ambientes
The in vitro multiplication, acclimatization and leaf anatomy on fig âRoxo de Valinhosâ in different environments was investigated. In the first part, were tested activated charcoal and BAP, kinetin and GA3 and different WPM culture medium concentrations combined with kinetin. Test tubes or flasks containing the explants was maintained at growth room, with
Publicado em: 2003
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6. Antagonistic but complementary actions of phytochromes A and B allow seedling de-etiolation.
Using dichromatic radiation, we show that the actions of phytochromes A and B (phyA and phyB) in Arabidopsis thaliana are antagonistic in mediating red and far-red radiation effects on seedling de-etiolation and yet act in a complementary manner to regulate de-etiolation, irrespective of spectral composition. At low phytochrome photoequilibria inhibition of
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7. Changes in Gibberellin A1 Levels and Response during De-Etiolation of Pea Seedlings1
The level of gibberellin A1 (GA1) in shoots of pea (Pisum sativum) dropped rapidly during the first 24 h of de-etiolation. The level then increased between 1 and 5 d after transfer to white light. Comparison of the metabolism of [13C3H] GA20 suggested that the initial drop in GA1 after transfer is mediated by a light-induced increase in the 2β-hydroxylation
American Society of Plant Physiologists.
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8. EARLY FLOWERING 4 Functions in Phytochrome B-Regulated Seedling De-Etiolation1
To define the functions of genes previously identified by expression profiling as being rapidly light induced under phytochrome (phy) control, we are investigating the seedling de-etiolation phenotypes of mutants carrying T-DNA insertional disruptions at these loci. Mutants at one such locus displayed reduced responsiveness to continuous red, but not continu
The American Society for Plant Biologists.
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9. Phototropism in Hypocotyls of Radish: IV. Flank Growth and Lateral Distribution of cis- and trans-Raphanusanins in the First Positive Phototropic Curvature
The first positive phototropic curvature induced by a pulse of unilateral white irradiation (0.1 watt per square meter, 30 seconds) of etiolated and de-etiolated Sakurajima radish (Raphanus sativus var hortensis f. gigantissimus Makino) hypocotyls was analyzed in terms of differential growth and growth inhibitor contents of the hypocotyls. In both etiolated
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10. SOME EFFECTS OF RADIANT ENERGY IN RELATION TO ETIOLATION12
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11. Light Differentially Regulates Cell Division and the mRNA Abundance of Pea Nucleolin during De-Etiolation1
The abundance of plant nucleolin mRNA is regulated during de-etiolation by phytochrome. A close correlation between the mRNA abundance of nucleolin and mitosis has also been previously reported. These results raised the question of whether the effects of light on nucleolin mRNA expression were a consequence of light effects on mitosis. To test this we c
American Society of Plant Physiologists.
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12. Correlations of Growth Rate and De-etiolation with Rate of Ent-Kaurene Biosynthesis in Pea (Pisum sativum L.) 1
Biosynthesis of the gibberellin precursor ent-kaurene-14C from mevalonic acid-2-14C was assayed in cell-free extracts of shoot tips of etiolated and light-grown Alaska (normal) and Progress No. 9 (dwarf) peas (Pisum sativum L.). During ontogeny of light-grown Alaska peas, kaurene-synthesizing activity increased from an undectectable level in 3-day-old epicot