Browsing by Title Artículos de revistas
Now showing items 1444-1463 of 4967
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Effect of gramine on the feeding behavior of the aphids Schizaphis graminum and Rhopalosiphum padi (1988)The effects of the indole alkaloid gramine on the behavior of the aphids Schizaphis graminum and Rhopalosiphum padi feeding on barley seedlings and on artificial diets were studied. On barley cv. F. Union, which lacks ...
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(1990)The effects of gramine on the bacterium Pseudomonas syringae in culture and on barley leaf disks were studied. Gramine prolonged the lag phase of growth and decreased the size of the population at stationary phase at ...
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(ELSEVIER, 2008-10-15)Herbivory may be an important factor affecting seedling survival of exotic species invading new habitats. We evaluated the effect of vertebrate herbivory on the seedling survival of two widely planted and invasive tree ...
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(2004)Five microsatellite loci were used to study the genetic variability and population structure of Sitobion avenae (Hemiptera: Aphididae) on some of its host plants. Individuals were collected in Chile from different cultivated ...
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(1993)2,4-Dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), a hydroxamic acid involved in the resistance of wheat to the aphid Rhopalosiphum padi, and known to react with serine and cysteine residues, inactivated acylcholinesterases ...
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(1995)To compare the effects of aphid infestation with some effects of wounding and drought-stress, several physiological parameters and metabolite concentrations were measured in infested, mechanically wounded or water-stressed ...
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(Czech Academy of Sciences, 2002)The aphid parasitoid Aphidius ervi was collected and subsequently reared on Sitobion avenae on wheat or Acyrthosiphon pisum on alfalfa. Parasitoids from both origins were exposed in an olfactometer to alfalfa or wheat ...
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(2006)Recent evidence suggests that reactive oxygen species function as second messenger molecules in normal physiological processes. For example, activation of N-Methyl-D-Aspartate receptor results in the production of ROS, ...
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(1986)Phagocytosis and bactericidal capacity of neutrophils were measured in 10 iron-deficient infants age 6-23 mo. All infants had hemoglobins < 11 mg/dL with low saturation of transferrin and serum ferritin but were otherwise ...
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(1974)The effects of localized spin fluctuations on the critical temperature Tc and the specific-heat jump Δ C (Tc) of dilute superconducting alloys is investigated, both in the weak and strong magnetic limits. In the weak ...
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(1993)CaSein kinase II purified from the nuclei of Xenopus laevis oocytes as well as the recombinant α and β subunits of the X. laevis CKII, produced in E. coli from the cloned cDNA genes, were tested with different divalent ...
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(2011)Iron-sulfur (Fe-S) clusters are small inorganic cofactors formed by tetrahedral coordination of iron atoms with sulfur groups. Present in numerous proteins, these clusters are involved in key biological processes such as ...
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(2013)The strength of key interfacial contacts that stabilize protein–protein interactions have been studied by computer simulation. Experimentally, changes in the interface are evaluated by generating specific mutations ...
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(1998)1. This paper investigates spatial habitat variation in flower visitation by avian pollinators (mainly Hummingbirds) and nectar robbers to Fuchsia magellanica at the southern limit of its range, Tierra del Fuego, and their ...
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(American Chemical Society, 2006)The geometry, electronic properties, and active sites of copper clusters doped with Ni or Pd atoms, Cun-1M (n = 2-6; M = Ni, Pd) have been investigated using first-principles methods. Planar structures are energetically ...
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(Frontiers Media, 2021)The influence of pH on the electrochemical behavior of hydrogen peroxide in the presence of Pseudomonas aeruginosa was investigated using electrochemical techniques. Cyclic and square wave voltammetry were used to monitor ...
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(Academic Press Inc., 2003)The effect of phenols containing different electron-withdrawing substituents on the potentiometric responses of several liquid PVC membranes containing the complex trioctylmethylammonium-nitrate, TOMA+NO3 -, is analyzed. ...
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(Walter de Gruyter GmbH, 2018)© 2018 Walter de Gruyter GmbH, Berlin/Boston 2018. Information on how wildlife is affected by pine plantation clearcutting is relevant for designing management strategies to promote biodiversity conservation in productive ...
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(Kluwer Academic/Plenum Publishers, 1999)We hypothesized that aphids after previous exposure to hydroxamic acids (Hx), a family of secondary plant compounds deleterious to aphids, are able to reduce their subsequent exposure to them. This hypothesis was tested ...
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(Wiley, 2020)Aquatic animals often display physiological adjustments to improve their biological performance and hydrosaline balance in saline environments. In addition to energetic costs associated with osmoregulation, oxidative stress, ...