Browsing by Title Artículos de revistas
Now showing items 1424-1443 of 4966
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(Frontiers media SA, 2018)
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(Frontiers Media, 2020)
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(Frontiers Media SA, 2018)
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(Sociedad Médica de Santiago, 1995-06-27)Boldo (Peumus boldus Molina) is a widely used medicinal planto However, its pbysiological effects are not well known. Recent studies in animals sbmoed tbat certain components o/ boldo relax smootb muscle and prolong ...
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(Sociedad de Biología de Chile, 2022)Background Habitat fragmentation and degradation processes affect biodiversity by reducing habitat quantity and quality, with differential effects on the resident species. However, their consequences are not always noticeable ...
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(2011)Theory predicts that in more stressful environments, positive plant-plant interactions should be more important than negative ones. For instance, in arid and semiarid regions, amelioration of soil drought produced by the ...
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(Centro de Información y Gestión Tecnológica de Pinar del Río, 2020)This research work was carried out in the coastal area of the Tacna and Moquegua region during the period 2012-2017, which allowed analyzing the effect of artisanal fishing of Aulacomya atra "choro" on the sustainability ...
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(Taylor & Francis, 2005)Tree species of intermediate-shade tolerance may regenerate in canopy gaps as well as in the forest understory. However, seedling performance may vary widely between shaded and open habitats. In this study, we assessed the ...
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(Taylor and Francis Inc., 2008)Growth responses of Phragmites australis (Cav.) Trin. Ex Steud, (reed grass), a helophyte species, were examined under in vitro and greenhouse conditions in the presence of various residues from a Kraft pulp mill. Plant ...
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(SPRINGER/PLENUM PUBLISHERS, 2010-05-01)Animals display foraging trajectories when exploiting food patches. These displacements have been studied, particularly in organisms that forage from a central place. The complexity of a movement path may be analyzed by ...
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(1981)The content of hydroxamic acids in wheat plants shows substantial variations between different species and cultivars (1.0-6.3 mmol/kg fr. wt). It also varies with the age of the plant and the organ assayed. The maximum ...
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(1982)Toxicity of DIMBOA, the major cyclic hydroxamic acid in maize extracts, to the aphid Schizaphis graminum, was decreased by addition of cysteine to the insect diet. The ld50 for DIMBOA on aphids was, after 24 hr, 2.1 and ...
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(Kluwer Academic/Plenum Publishers, 1999)2,4-Dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), a hydroxamic acid involved in the resistance of cereals to aphids, was administered to adult individuals of the aphid Sitobion avenae in artificial diets. Effects on ...
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(Kluwer Academic Publishers-Plenum Publishers, 1992)DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one), a secondary metabolite found in cereal extracts, confers resistance in wheat to aphids. Its effect on beneficial organisms was tested on larvae of the aphid predator ...
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(2009)1.In the altricial rodent, Phyllotis darwini, we found higher body temperatures and faster developmental rates of the thermoregulatory capacity in neonates born from cold- than warm-acclimated mothers.2.This difference ...
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(1986)Gramine (N,N‐Dimethyl‐3‐aminomethylindole) content in various barley cultivars varied from 0 to 2.6 mmoles/kg fresh weight. Those cultivars which were lacking gramine were the most susceptible to the aphid Rhopalosiphum ...