Lentinula edodes extract in the control and induction of resistance to common bean pathogens

Abstract

Common bean (Phaseolus vulgaris L.) is among the main crops of national agriculture and can be affected by several diseases. Aiming to develop alternative control methods to chemical control, it was verified the potential of the aqueous extract (AE) from Lentinula edodes in controlling common bean diseases and inducing resistance by the activation of defense enzymes such as peroxidase, catalase and polyphenoloxidase, in addition to evaluating production components. The field experiment consisted of 0, 5%, 10% or 20% acibenzolar-S-methyl (ASM) and fungicide pyraclostrobin treatments as standard treatments. AE was effective in controlling anthracnose at 1% and 5% doses. The activity of all evaluated enzymes was higher at 12 and 24 hours after application of the treatments, with a concentration of 20% standing out. AE at this same dose increased the number of beans per pod and also yield. The aqueous extract of Lentinula edodes at a concentration of 20% is effective in inducing resistance, increasing enzyme levels and increasing yield.

Extrato de Pycnoporus sanguineus no Controle de Meloidogyne javanica em Tomateiro

“…Eidt et al (2020) também não observaram efeito na massa seca da parte aérea de plantas de arroz submetidas à indução de resistência com Trichoderma em comparação com a testemunha não tratada, entretanto, houve aumento na produtividade em 5% com o uso desse fungo. Em outro trabalho, Oliveira et al (2019), estudando o extrato do basidiomiceto Lentinula edodes como indutor de resistência, observaram que não houve variação no número de grãos por vagem de feijoeiro, entretanto, a produtividade foi 18% superior na maior concentração utilizada do extrato. Extrato de L. edodes ativando mecanismos de defesa em plantas de pimenta já foi observado por Kang et al (2017).…”