Plant Disease Resistance
Mostrando 13-24 de 380 artigos, teses e dissertações.
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13. Ação de indutores de resistência em cacaueiro infectados com Ceratocystis cacaofunesta.
RESUMO O fungo Ceratocystis cacaofunesta é um dos principais problemas na cultura do cacaueiro no Brasil. Para o cacaueiro há poucas alternativas para o controle da doença, sendo que a indução de resistência vem sendo testada como uma possibilidade de controle. Neste trabalho foram utilizados três indutores de resistências em três concentrações di
Summa phytopathol.. Publicado em: 2019-03
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14. 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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15. Quitosana associada com extratos vegetais no controle pós-colheita de antracnose em mamão ‘formosa’
RESUMO O uso excessivo de produtos químicos na cultura do mamão (Carica papaya) coloca em risco a eficácia de fungicidas, em razão dos problemas de resistência dos patógenos a esses produtos, além da possibilidade de resíduos tóxicos colocarem em risco a saúde humana e o ambiente. Diante disto, o presente trabalho teve por objetivo avaliar a eficá
Summa phytopathol.. Publicado em: 2019-03
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16. Athelia (Sclerotium) rolfsii in Allium sativum: potential biocontrol agents and their effects on plant metabolites
Abstract Garlic (Allium sativum L.) plays an important role in popular culture due to its dietary and medicinal uses. It is also used to produce a wide range of pharmacologically interesting molecules. Several pathogens affect garlic plants, especially Athelia (Sclerotium) rolfsii, a fungus that is widespread and causes large economic losses. It causes direc
An. Acad. Bras. Ciênc.. Publicado em: 01/11/2018
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17. Methodologies for selecting cassava with resistance to dry and black root rot under controlled conditions
ABSTRACT Cassava root rot diseases such as dry and black root rot are listed among the major threats, since its affect the main product (tuberous roots), causing a progressive decline in yield and affecting subsequent crop cycles, being the use of resistant varieties the most reliable control measure on field level. The objective of this study was to identif
Bragantia. Publicado em: 02/08/2018
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18. IN VITRO PHYTOREMEDIATION OF PERSISTENT ORGANIC POLLUTANTS BY Helianthus annuus L. PLANTS
Plant model systems are needed to properly conduct basic laboratory studies prior to field applications of phytoremediation. In vitro plant cultures are a useful tool for such research. This study focuses on the removal and/or degradation of 24 persistent organic pollutants under in vitro conditions by Helianthus annuus L (sunflower). The main purpose of exp
Quím. Nova. Publicado em: 2018-03
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19. Tangeretin has anti-asthmatic effects via regulating PI3K and Notch signaling and modulating Th1/Th2/Th17 cytokine balance in neonatal asthmatic mice
Asthma is a chronic allergic disease characterized by airway inflammation, airway hyper-responsiveness (AHR), and mucus hypersecretion. T-lymphocytes are involved in the pathogenesis of asthma, mediating airway inflammatory reactions by secreting cytokines. The phosphoinositide 3-kinase (PI3K) and Notch signaling pathways are associated with T cell signaling
Braz J Med Biol Res. Publicado em: 20/07/2017
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20. 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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21. Resistance to Fusarium wilt in common bean
Abstract In breeding programs, understanding the potential of parents should be a way to spend significantly less time and costs to obtain new cultivars. For this, the objective of this study was to estimate the general and specific combining ability of parents aiming common bean breeding for resistance to Fusarium wilt (FW) based on disease severity and red
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-09
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22. Increasing the resistance of common bean to white mold through recurrent selection
ABSTRACT White mold, caused by Sclerotinea sclerotiorum (Lib.) de Bary is one of the most important diseases of the common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and traits related to disease avoidance such as architecture contribute to field resistance. The aim of this study was to verify the efficiency of recurrent selection in ph
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-02
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23. Histochemical aspects of wheat resistance to leaf blast mediated by silicon
Blast, caused by Pyricularia oryzae, has become a significant disease threat to wheat (Triticum aestivum L.) in Brazil. This study aimed to investigate at the histochemical level if silicon (Si) could enhance the production of flavonoids in the leaves of wheat plants in response to P. oryzae infection. Plants from the Aliança cultivar, which are susceptible
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-08
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24. Structure-based drug design studies of the interactions ofent-kaurane diterpenes derived from Wedelia paludosa with the Plasmodium falciparumsarco/endoplasmic reticulum Ca2+-ATPase PfATP6
Malaria is responsible for more deaths around the world than any other parasitic disease. Due to the emergence of strains that are resistant to the current chemotherapeutic antimalarial arsenal, the search for new antimalarial drugs remains urgent though hampered by a lack of knowledge regarding the molecular mechanisms of artemisinin resistance. Semisynthet
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-04