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Changes in trypsin inhibitor activity, lectin activity, and the content of endogenous salicylic acid after administration of exogenous salicylic acid or a pathogen were shown to depend on the resistance of maize strains to Fusarium.
      
A change in the activity of lectins may be a nonspecific response of plants to infection with the pathogen.
      
Infection of tubers with a compatible race of the pathogen or treatment with a suppressor (laminarin) decreased both the degree of hydrolysis of conjugated forms of salicylic acid and the accumulation of its free form.
      
An increase in the soil pool of Trichoderma harzianum as a result of application of a biological preparation based on this antagonistic fungus correlated with its effectiveness against the soil pathogen Fusarium sp., which causes root rot.
      
Interaction of proteinases secreted by the fungal plant pathogen Rhizoctonia solani with natural proteinase inhibitors produced
      
The fungal plant pathogen Rhizoctonia solani Kuhn.
      
solani play a significant role in attacking plant tissue, and natural inhibitors contribute to the protection of Solanaceae and Leguminosae from this fungal pathogen.
      
The optimal concentrations of tested compounds were selected for designing the compositions activating wound repair, induction of proteinase inhibitors, and resistance to the biotrophic pathogen Phytophthora infestans (Mont.) de Bary.
      
It was assayed by the HPLC method in healthy and diseased (inoculated by the powdery mildew causative agent) plants (from inoculation to the stage of pathogen spore formation).
      
A cytophysiological study was carried out of the functional status of a halo as a response of the host plant to contact with a powdery mildew pathogen.
      
The infection of wheat with this pathogen leads to an increase in cytokinins in plants of the resistant variety in the presence of stable IAA/ABA ratio.
      
When the pathogen conidia were in direct contact with phytohormones, the intensity of their germination significantly increased.
      
Its reaction with the enzyme determines how the cells utilize О?ˉ2 for pathogen elimination.
      
The interaction between the pathogen and wheat-Aegilops lines with different resistance as well as their parental forms in the course of powdery mildew infection was studied using scanning electron microscopy.
      
The pathogen-host interaction was characterized by a longer incubation period.
      
Such a pattern of pathogen development indicated that the host plants had some resistance factors operating mainly at the level of pathogen penetration.
      
The relationship between the dynamics and spatial distribution of lectins in the perilesional area and the possible involvement of these proteins in pathogen-induced changes in photosynthesis are discussed.
      
speltoides k-389 highly resistant to the pathogen penetration.
      
Line 56/99i was sensitive to the penetration; however, a subsequent prolonged hypersensitive response eliminated pathogen colonies surrounded by necrotic areas.
      
The pattern of changes in o-phenylenediamine oxidation rate depended on pathogen type, cultivar resistance, and phytohormone class.
      
 

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