Induced Plant Defense
Mostrando 1-12 de 272 artigos, teses e dissertações.
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1. Preference of Neoseiulus californicus (Acari: Phytoseiidae) for volatiles of Bt maize induced by multiple herbivory
ABSTRACT Plant indirect induced defenses against herbivores are characterized by the production of plant volatiles that to attract natural enemies. The objective of this study was to evaluate whether the attack of the two-spotted spider mite Tetranychus urticae or the multiple herbivory of T. urticae together with the fall armyworm Spodoptera frugiperda are
Rev. Bras. entomol.. Publicado em: 13/01/2020
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2. No fitness costs are induced by Spiroplasma infections of Aphis citricidus reared on two different host plants
Resumo Pulgões podem abrigar vários simbiontes secundários que alteram características ecológicas importantes, como defesa contra inimigos naturais, tolerância ao calor e utilização da planta hospedeira. Um desses simbiontes secundários, Spiroplasma, é estudado em Drosophila por alterar a razão sexual e interagir com o sistema imunológico do hosp
Braz. J. Biol.. Publicado em: 04/07/2019
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3. Aluminum stress tolerance in potato genotypes grown with silicon
ABSTRACT Potato cultivation is widespread around the world, being exposed to several abiotic stresses, including soils with high aluminum (Al) availability. Silicon (Si) is recognized for alleviating the stress caused by Al in various plant species. Thus, the aim of this study was to investigate the potential of Si to mitigate the oxidative stress caused by
Bragantia. Publicado em: 17/01/2019
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4. Defense-related proteins involved in sugarcane responses to biotic stress
Abstract Sugarcane is one of the most important agricultural crops in the world. However, pathogen infection and herbivore attack cause constant losses in yield. Plants respond to pathogen infection by inducing the expression of several protein types, such as glucanases, chitinases, thaumatins, peptidase inhibitors, defensins, catalases and glycoproteins. Pr
Genet. Mol. Biol.. Publicado em: 20/02/2017
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5. Advances in induced resistance by natural compounds: towards new options for woody crop protection
ABSTRACT: The activation of defensive responses of plants is a promising tool for controlling pests in conventional agriculture. Over the last few years, several compounds have been studied to protect crops from pests, without displaying direct toxicity for pathogenic organisms. These compounds have the ability to induce a priming state on the plants that re
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02
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6. Noctuidae-induced plant volatiles: current situation and prospects
Noctuids are phytophagous lepidopterans with some species causing significant damage to agriculture. The host plants, in turn, have developed defense mechanisms to cope with them, for instance chemical defenses. In this study we review the literature on plant volatiles induced by noctuids, and discuss the methodologies used to induce the production of volati
Quím. Nova. Publicado em: 2014
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7. Enhanced salt tolerance in maize plants induced by H2O2 leaf spraying is associated with improved gas exchange rather than with non-enzymatic antioxidant system
Hydrogen peroxide (H2O2) is an essential signaling molecule that mediates plant responses against several biotic and abiotic stresses. H2O2 pretreatment has emerged as a signaling way, inducing salt stress acclimation in plants. Here, we analyzed the effects of H2O2 leaf pretreatment on the non-enzymatic defense system (ascorbate and glutathione), plant grow
Theor. Exp. Plant Physiol.. Publicado em: 2013-12
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8. Induced defense responses in tomato against bacterial spot by proteins synthesized by endophytic bacteria
Some endophytes can synthesize molecules that elicit the induction of plant resistance to infection by pathogens. The objective of this study was to demonstrate that protein fractions 42 and 75 from Bacillus amyloliquefaciens and Bacillus pumilus were capable of acting as elicitors of induced resistance in tomato plants against Xanthomonas vesicatoria, follo
Trop. plant pathol.. Publicado em: 09/07/2013
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9. Defense responses to Meloidogyne exigua in resistant coffee cultivar and non-host plant
The resistance of coffee plants to Meloidogyne exigua is conferred by the gene Mex-1. However, the mechanisms of resistance still need to be clarified. Therefore, the penetration, development and reproduction of two populations of M. exigua (M1, isolated from the coffee plant and M2, from rubber tree) in susceptible (Coffea arabica 'Catuai') and resistant (C
Trop. plant pathol.. Publicado em: 2013-04
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10. Indução e redução de defesas em plantas de tomate por ácaros fitófagos: efeitos de ataques sequenciais e simultâneos / Induction and reduction of tomato plant defenses by spider mites: effects of sequential and simultaneous attacks
Neste estudo foi investigado o efeito das defesas induzidas diretas de plantas de tomate sobre parâmetros biológicos do ácaro vermelho Tetranychus evansi Baker &Pritchard (Acari: Tetranychidae) e do ácaro rajado Tetranychus urticae Koch (Acari: Tetranychidae), pelo fato desses ácaros serem pragas na cultura do tomateiro. No primeiro capítulo foram dete
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2012
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11. Antioxidant system response induced by aluminum in two rice cultivars
The antioxidant defense system response was evaluated in two rice cultivars (Oryza sativa L.), Fernandes (CNA-1158) and Maravilha (CNA-6843-1), treated with toxic levels of aluminum. After exposure to aluminum we determined plant growth, H2O2 and O2•- contents, lipid peroxidation, antioxidant enzymes activities and ascorbate and dehydroascorbate contents.
Braz. J. Plant Physiol.. Publicado em: 2012-06
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12. Sistemas de defesa antioxidativo contra a toxicidade induzida por arsênio em aguapé (Eichhornia crassipes (Mart.) Solms) / Antioxidative defense systems against toxicity induced by arsenic in water hyacinth (Eichhornia crassipes (Mart.) Solms)
Plantas de aguapé (Eichhornia crassipes (Mart.) Solms) foram submetidas a concentrações tóxicas de arsênio (As) para analisar a capacidade de absorção desse metaloide por essa macrófita e os seus efeitos tóxicos no crescimento e nas alterações estruturais em folhas e raízes, além de estudos dos mecanismos bioquímicos relacionados ao metabolismo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011