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<p>The adaptability of tomato (<i>Solanum lycopersicum</i> L.) to soil characteristics and climate is one of the main factors that led to its large-scale cultivation. However, wide scale cultivation also contributes to the emergence of phytosanitary problems, like pathogens such as <i>Alternaria</i> spp., the pathogen causing early blight, one of the main diseases that occurs in this crop. The aim of this study was to evaluate the effect of the application of fungal filtrates of <i>Ganoderma lucidum</i>, <i>Pleurotus ostreatus</i> and<i>Trichoderma asperellum</i> on the development of <i>A. linariae</i>, as well as its effect on the development and post-harvest of tomato plants grown in a greenhouse and inoculated with the pathogen. For this purpose, evaluation of the antagonistic potential, vegetative development, photosynthetic capacity during the crop cycle, and post-harvest quality of the fruit was assessed. In vitro tests demonstrated that all treatments are effective to control <i>A. linariae</i> and, when tested in the greenhouse, were also able to reduce the development of the disease by reducing the area under the disease progress curve and the severity. Other tests demonstrated that plants treated with the filtrate of <i>G. lucidum</i>biomass increased resistance to <i>A. linariae</i> and can be used as BCA in the management of diseases in tomato plants, promoting better physiological and productive responses of the crop.</p>

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Action of fungal filtrates on alternaria linariae and on development of tomato early blight

  • 期刊论文

  • 发表日期：

    2025年5月3日

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  • Amanda Felchak de Morais,
  • Karla Siebert Sapelli,
  • Kátia Regina Freitas Schwan-Estrada,
  • Sérgio Miguel Mazaro,
  • Cacilda Marcia Duarte Rios Faria

摘要

The adaptability of tomato (Solanum lycopersicum L.) to soil characteristics and climate is one of the main factors that led to its large-scale cultivation. However, wide scale cultivation also contributes to the emergence of phytosanitary problems, like pathogens such as Alternaria spp., the pathogen causing early blight, one of the main diseases that occurs in this crop. The aim of this study was to evaluate the effect of the application of fungal filtrates of Ganoderma lucidum, Pleurotus ostreatus andTrichoderma asperellum on the development of A. linariae, as well as its effect on the development and post-harvest of tomato plants grown in a greenhouse and inoculated with the pathogen. For this purpose, evaluation of the antagonistic potential, vegetative development, photosynthetic capacity during the crop cycle, and post-harvest quality of the fruit was assessed. In vitro tests demonstrated that all treatments are effective to control A. linariae and, when tested in the greenhouse, were also able to reduce the development of the disease by reducing the area under the disease progress curve and the severity. Other tests demonstrated that plants treated with the filtrate of G. lucidumbiomass increased resistance to A. linariae and can be used as BCA in the management of diseases in tomato plants, promoting better physiological and productive responses of the crop.