Mechanisms Of Plant Defense
Mostrando 1-12 de 120 artigos, teses e dissertações.
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1. Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses
ABSTRACT Seed germination and seedling growth are the stages most sensitive to salt stress, which can induce ion-specific effects and oxidative stress. Although silicon (Si) has been known to improve plant defense systems against stressful-conditions, little is known about seed priming with Si and mechanisms of Si-mediated alleviation of salt stress in seedl
Bragantia. Publicado em: 2020-03
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2. Accumulation of organic solutes and enzymatic activity in cut roses (Rosaceae) cultivated with physiological effect products in the Sub- Middle São Francisco River Valley
RESUMO: Objetivou-se, com este estudo, avaliar o acúmulo de carboidratos, proteína e prolina, bem como a atividade de enzimas antioxidantes superóxido dismutase e catalases em plantas de rosa de corte ‘Ambiance’ cultivadas sob aplicação de produtos de efeitos fisiológicos no Vale do Submédio São Francisco. O experimento foi realizado em telado co
Cienc. Rural. Publicado em: 25/11/2019
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3. Genotoxicity of titanium dioxide nanoparticles and triggering of defense mechanisms in Allium cepa
Abstract Titanium dioxide nanoparticles (TiO2NPs) are widely used and may impact the environment. Thus, this study used a high concentration of TiO2NP (1000 mg/L) to verify the defense mechanisms triggered by a plant system – an indicator of toxicity. Furthermore, this study aimed at completely characterizing TiO2NP suspensions to elucidate their toxic beh
Genet. Mol. Biol.. Publicado em: 27/06/2019
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4. Componentes bioquímicos e epidemiológicos associados à resistência do arroz à mancha parda
RESUMO A mancha parda (Bipolaris oryzae) é uma das mais importantes doenças foliares do arroz. Nesse estudo, alguns componentes de resistência e algumas variáveis bioquímicas amplamente conhecidas como mecanismos de defesa de plantas contra patógenos foram avaliadas em genótipos de arroz classificados, segundo SOSBAI, como moderadamente suscetível, m
Summa phytopathol.. Publicado em: 2019-03
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5. Antiherbivory defense mechanisms along an environmental gradient in restinga
ABSTRACT Plant-herbivore interactions have directed the evolution of defense mechanisms in plants, which can vary intraspecifically according to environmental quality. This study evaluated variation in the production of antiherbivory defenses in plant species distributed along an environmental gradient of restinga. The study was performed in Parque Estadual
Acta Bot. Bras.. Publicado em: 21/09/2017
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6. Interactions between plant hormones and heavy metals responses
Abstract Heavy metals are natural non-biodegradable constituents of the Earth's crust that accumulate and persist indefinitely in the ecosystem as a result of human activities. Since the industrial revolution, the concentration of cadmium, arsenic, lead, mercury and zinc, amongst others, have increasingly contaminated soil and water resources, leading to sig
Genet. Mol. Biol.. Publicado em: 10/04/2017
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7. 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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8. Translational control in plant antiviral immunity
Abstract Due to the limited coding capacity of viral genomes, plant viruses depend extensively on the host cell machinery to support the viral life cycle and, thereby, interact with a large number of host proteins during infection. Within this context, as plant viruses do not harbor translation-required components, they have developed several strategies to s
Genet. Mol. Biol.. Publicado em: 13/02/2017
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9. Algal polysaccharides as source of plant resistance inducers
Algal compounds exhibit great potential to enhance plant growth and resistance to abiotic and biotic stresses. This review focuses on aspects concerning the physical-chemical properties, function and biological activity of macroalgae polysaccharides. Updated results of the main poly- and oligosaccharides studied for the control of plant diseases are discusse
Trop. plant pathol.. Publicado em: 2014-04
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10. 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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11. Identification of the soybean HyPRP family and specific gene response to Asian soybean rust disease
Soybean [Glycine max (L.) Merril], one of the most important crop species in the world, is very susceptible to abiotic and biotic stress. Soybean plants have developed a variety of molecular mechanisms that help them survive stressful conditions. Hybrid proline-rich proteins (HyPRPs) constitute a family of cell-wall proteins with a variable N-terminal domain
Genet. Mol. Biol.. Publicado em: 19/04/2013
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12. 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