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In phytopathology, antagonism refers to the action of any organism that suppresses or interferes with the normal growth and activity of a plant pathogen, such as the main parts of bacteria or fungi. These organisms can be used for pest control and are referred to as biological control agents. They may be predators, parasites, parasitoids, or pathogens that attack harmful insect, weed or plant disease or any other organism in its vicinity. The inhibitory substance is highly specific in its action affecting only a specific species. Many soil microorganisms are antagonistic. They secrete a potent enzyme which destroys other cells by digesting their cell walls and degrade the cellular material as well as released protoplasmic material serves as a nutrient for the inhibitor organism for example

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  • Antagonism (phytopathology) (en)
  • Antagonisme (phytopathologie) (fr)
  • Antagonist (landbouw) (nl)
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  • In de fytopathologie of plantenziektenkunde is een antagonist een schimmel of bacterie, die ingezet kan worden bij de biologische bestrijding van plantenziekten. Deze organismen koloniseren de plant, waardoor er geen ziekteverwekkende organismen meer op de plant kunnen groeien De werking van een antagonist kan berusten op: * vorming van toxines, antbiotica, enzymen * parasitisme: biotroof of . Een biotrofe parasiet kan alleen leven op een levende plant. Een necrotrofe parasiet doodt de plant en leeft dan verder als saprofyt. * concurrentie om voedsel * geïnduceerde resistentie (indirect) (nl)
  • In phytopathology, antagonism refers to the action of any organism that suppresses or interferes with the normal growth and activity of a plant pathogen, such as the main parts of bacteria or fungi. These organisms can be used for pest control and are referred to as biological control agents. They may be predators, parasites, parasitoids, or pathogens that attack harmful insect, weed or plant disease or any other organism in its vicinity. The inhibitory substance is highly specific in its action affecting only a specific species. Many soil microorganisms are antagonistic. They secrete a potent enzyme which destroys other cells by digesting their cell walls and degrade the cellular material as well as released protoplasmic material serves as a nutrient for the inhibitor organism for example (en)
  • En phytopathologie, l'antagonisme se réfère à l'action d'un organisme vivant qui supprime la croissance normale et l'activité, ou interfère avec celles-ci, d'un agent pathogène des plantes. C'est le cas d'un grand nombre de bactéries ou champignons. (fr)
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  • In phytopathology, antagonism refers to the action of any organism that suppresses or interferes with the normal growth and activity of a plant pathogen, such as the main parts of bacteria or fungi. These organisms can be used for pest control and are referred to as biological control agents. They may be predators, parasites, parasitoids, or pathogens that attack harmful insect, weed or plant disease or any other organism in its vicinity. The inhibitory substance is highly specific in its action affecting only a specific species. Many soil microorganisms are antagonistic. They secrete a potent enzyme which destroys other cells by digesting their cell walls and degrade the cellular material as well as released protoplasmic material serves as a nutrient for the inhibitor organism for example Aspergillus has an antagonistic effect on Penicillium and Cladosporium. Trichoderma has an effect on actinomycetes. Pseudomonas show antagonism on Cladosporiumsuch organism may be of great practical importance since they often produce antibiotics which effect the normal growth processes. (en)
  • En phytopathologie, l'antagonisme se réfère à l'action d'un organisme vivant qui supprime la croissance normale et l'activité, ou interfère avec celles-ci, d'un agent pathogène des plantes. C'est le cas d'un grand nombre de bactéries ou champignons. Ces organismes peuvent être utilisés pour la lutte antiparasitaire et sont appelés «`agents de lutte biologique ». Il peut s'agir de prédateurs, de parasites, parasitoïdes ou agents pathogènes qui s'attaquent aux insectes nuisibles, aux mauvaises herbes ou aux maladies des plantes ou à tout autre organisme dans son voisinage. La substance inhibitrice est souvent très spécifique dans son action, affectant seulement une espèce en particulier. De nombreux micro-organismes du sol sont antagonistes.Ils sécrètent une enzyme puissante qui détruit les autres cellules en digérant leur paroi cellulaire et en dégradant le contenu cellulaire, et le matériau protoplasmique libéré sert de nutriment pour l'organisme inhibiteur.Par exemple, chez les champignons, a un effet antagoniste sur de nombreux champignons phytopathogènes. Des souches de Trichoderma spp. ont également montré un effet antagoniste sur le champignon Botrytis cinerea responsable de la pourriture grise. (fr)
  • In de fytopathologie of plantenziektenkunde is een antagonist een schimmel of bacterie, die ingezet kan worden bij de biologische bestrijding van plantenziekten. Deze organismen koloniseren de plant, waardoor er geen ziekteverwekkende organismen meer op de plant kunnen groeien De werking van een antagonist kan berusten op: * vorming van toxines, antbiotica, enzymen * parasitisme: biotroof of . Een biotrofe parasiet kan alleen leven op een levende plant. Een necrotrofe parasiet doodt de plant en leeft dan verder als saprofyt. * concurrentie om voedsel * geïnduceerde resistentie (indirect) (nl)
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