Stomatal Density
Mostrando 13-24 de 41 artigos, teses e dissertações.
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13. Fotossíntese, crescimento e composição química em plantas de Theobroma cacao L. submetidas a diferentes concentrações de silicato de potássio e sua interação com insetos-praga / Photosynthesis, growth and chemical composition in plants of Theobroma cacao L. subjected to different concentrations of potassium silicate and its interaction with insect-pests
The control of insect pests through the use of pesticides, is still the most method used in the cultivation of cocoa. However, due to environmental issues, there need to seek new alternatives of control less harmful the environment and to humans. In this context, silicon is a nutrient that is being used in various cultures, due to its beneficial effects on p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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14. Structural analysis of Castanea sativa Mill. leaves from different regions in the tree top
The aim of this work was to perform the histological characterization of the C. sativa leaves of three Portuguese cultivars to establish comparison among the leaves of the different quadrants in accord and with the cardinal points of the tree top and among different cultivars of this species, using light microscopy (OM) and scanning electron microscopy (SEM)
Brazilian Archives of Biology and Technology. Publicado em: 2011-02
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15. 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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16. Autotetraploidy induction and identification in banana (Musa spp.) / INDUÃÃO E IDENTIFICAÃÃO DE POLIPLOIDIA EM Musa acuminata, Colla
The aimed study to induct and to identify polyploidys identification through stomatal analysis, chromosome counting and flow cytometry, as well polyploidys and mixoploids effects on the structural and ultrastructural characteristics in banana varieties: Malbut, Ouro, Lidi e Thong Dok Mak. In polyploidys induction, explants were treated with concentrations of
Publicado em: 2008
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17. Obtenção de plantas autotetraplóides de variedades de porta-enxertos de citros / Obtention of autotetraploids plants of varieties of rootstocks of Citrus
The Brazilian citriculture stands out as the greatest expression worldwide, with about 27.9% of world production of oranges and 59% of global production of frozen orange juice concentrate. However, it presents a vulnerability that is the predominance of a single species of rootstock, the Cravolemon, with approximately 85% of citrus planted on it. Thus, great
Publicado em: 2008
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18. Crescimento, caracterÃsticas estruturais e teor de Ãleo essencial de Mentha suaveolens, cultivadas sob telas coloridas / Growth, structural characteristics and essential oil content of Mentha suaveolens Ehrh cultivated under colored screens.
Among medicinal and aromatic plants, Mentha suaveolens is a species of economic interest, because its essential oils can have several industrial applications, as for example in mouth hygiene products, flavorings, food and beverage aromatizers, perfumery and pharmaceutical products. The species Mentha suaveolens, popularly known as hortelà peluda (hairy pepp
Publicado em: 2007
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19. Variabilidad anatómica de los sistemas de conducción y estomático de genotipos de Prunus spp. de diferentes orígenes
The aim of this research was to study the relationships between environmental humidity availability and the anatomical characteristics of water conduction and stomatal systems, in five Mexican peach genotypes with different origins (Jalatzingo and Misantla, Veracruz; Temascaltepec, México; Tulancingo, Oaxaca; Sombrerete, Zacatecas), one almond and Nemaguard
Pesquisa Agropecuária Brasileira. Publicado em: 2006-02
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20. Ambiente de cultivo na propagaÃÃo in vitro de crisÃntemo (Dondranthema grandiflora Tzvelev cv. Rage): caracterÃsticas anatÃmicas e fisiolÃgicas / Environment of culture in the propagation in vitro of Dendranthema grandiflora cv. Rage: anatomical and physiological alterations.
Plant cultivated for the beauty of its flowers, chrysanthemum has great commercial value for being one of the most important ornamental cultures for plants market . Tissue culture has been used for that plant in commercial propagation. Becouse of high costs in traditional micropropagation tecnics, to the loss during the acclimatizing process and high eletric
Publicado em: 2006
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21. Germinação, crescimento, atividade fotossintetica e translocação de compostos de carbono em especies arboreas tropicais : estudo comparativo e influencia de sombreamento natural
Gennination, growth, photosynthesis and translocation of carbon in tropical tree species: a comparative study and the influence of natural shade. Light has been recognized as a major factor in species replacement during secondary sucession in forests. The degree of shade tolerance may be important in detennining successional sequences, since these are condit
Publicado em: 1996
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22. The Subtilisin-Like Serine Protease SDD1 Mediates Cell-to-Cell Signaling during Arabidopsis Stomatal Development
Wild-type stomata are distributed nonrandomly, and their density is controlled by endogenous and exogenous factors. In the Arabidopsis mutant stomatal density and distribution1-1 (sdd1-1), the establishment of the stomatal pattern is disrupted, resulting in stomata clustering and twofold to fourfold increases in stomatal density. The SDD1 gene that encodes a
American Society of Plant Biologists.
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23. A subtilisin-like serine protease involved in the regulation of stomatal density and distribution in Arabidopsis thaliana
Stomata are specialized cellular structures in the epidermis of aerial plant organs that control gas exchange (H2O release and CO2 uptake) between leaves and the atmosphere by modulating the aperture of a pore flanked by two guard cells. Stomata are nonrandomly distributed, and their density is controlled by endogenous and environmental factors. To gain insi
Cold Spring Harbor Laboratory Press.
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24. Ploidy Effects on Anatomy and Gas Exchange of Tall Fescue Leaves 1
A growth chamber study was designed to interpret differences in CO2 exchange rate (CER) and leaf diffusive resistance among 4X, 6X, 8X, and 10X ploidy levels of tall fescue (Festuca arundinacea, Schreb). Mesophyll cell size, stomatal density, number of major and minor veins, and bundle cap size of leaf blades were evaluated. Diffusive resistance tended to de