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10 resultados
Improving the artificial diet for adult of seven spotted ladybird beetle Coccinella septempunctata L. (Coleoptera: Coccinellidae) with orthogonal design.
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In this study, an orthogonal array design with 16 factors at two levels (216) was performed to develop an artificial diet rearing the adults of seven spotted ladybird beetle Coccinella septempunctata. The parameters of weight gain and survival rate of adults, preoviposition period, fecundity and
Changes in the GN/GCof the M segment show positive selection and recombination of one aggressive isolate and two mild isolates of tomato spotted wilt virus.
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We isolated and compared three tomato spotted wilt virus (TSWV) isolates from lettuce (TSWV-Let), pepper (TSWV-Pep), and tomato (TSWV-Tom) from central Mexico to determine their ability to infect a set of eighteen differential plant species from seven families. TWSV-Let was an aggressive isolate
Maize plants produce direct resistance elicited by Tetranychus urticae Koch (Acari: Tetranychidae).
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Plants can be attacked by a wide variety of herbivores. Thus, developing protective mechanisms for resistance against these agents is an advantage for survival and reproduction. Over the course of evolution, many resistance mechanisms against herbivory have been developed by the plants. Induced
Inheritance of mutator activity in Zea mays as assayed by somatic instability of the bz2-mu1 allele.
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Mutator lines of maize were originally defined by their high forward mutation rate, now known to be caused by the transposition of numerous Mu elements. A high frequency of somatic instability, seen as a fine purple spotting pattern on the aleurone tissue, is characteristic of Mu-induced mutable
Epigenetic silencing and unstable inheritance of MuDR activity monitored at four bz2-mu alleles in maize (Zea mays L.).
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Maize MuDR/Mu elements are one of the most active Class II transposons and are widely used for transposon tagging for gene cloning. The autonomous MuDR encodes a transposase, while diverse non-autonomous elements share similarity to MuDR only within their ~215 bp terminal inverted repeats (TIRs).
Herbivore-induced volatiles: the emission of acyclic homoterpenes from leaves of Phaseolus lunatus and Zea mays can be triggered by a beta-glucosidase and jasmonic acid.
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The treatment of healthy, undamaged plants of the Lima bean Phaseolus lunatus with solutions of a beta-glucosidase from bitter almonds (at 5 U.ml-1) through the petiole results in an enhanced emission of volatiles to the environment. The compounds are identical with those emitted in response to
Transcriptomic Plasticity in the Arthropod Generalist Tetranychus urticae Upon Long-Term Acclimation to Different Host Plants.
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The two-spotted spider mite Tetranychus urticae is an important pest with an exceptionally broad host plant range. This generalist rapidly acclimatizes and adapts to a new host, hereby overcoming nutritional challenges and a novel pallet of constitutive and induced plant defenses. Although recent
Resistance of cultivated tomato to cell content-feeding herbivores is regulated by the octadecanoid-signaling pathway.
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The octadecanoid signaling pathway has been shown to play an important role in plant defense against various chewing insects and some pathogenic fungi. Here, we examined the interaction of a cell-content feeding arachnid herbivore, the two-spotted spider mite (Tetranychus urticae Koch), with
Yeast Species, Strains, and Growth Media Mediate Attraction of Drosophila suzukii (Diptera: Drosophilidae).
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Specific ecological interactions between insects and microbes have potential in the development of targeted pest monitoring or control techniques for the spotted wing drosophilid, Drosophila suzukii (Matsumura), an exotic invasive pest of soft fruit. To evaluate D. suzukii attraction
Induction and recovery of morphofunctional changes in the intestine of juvenile carnivorous fish (Epinephelus coioides) upon exposure to foodborne benzo[a]pyrene.
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The sublethal toxicity of dietary benzo[a]pyrene, B[a]P, on fish growth and intestinal morphofunctional changes [as measured by epithelial turnover, cell proliferation, hyperplasia, de novo crypt formation and protein absorption efficiency (i.e. expression of proton/peptide co-transporter, PepT-1,
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