Efficacy of different fungicides, plant extracts and bioagents against Phoma exigua causing Ascochyta blight of common bean (Phaseolus vulgaris L.)

Wani, Fazil Fayaz; Wani, Tanveer A.; Shah, T. A.; Ayoub, Liyaqat; Amin, Zakir; Manzoor, Tabasum; Gull, Audil; Bhat, Tauseef A.

doi:10.1007/s42360-022-00546-0

Cited by 1 publication

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“…After 25 days of incubation, mancozeb showed an EC 85 of 4.91 µg/mL against the mycelial growth of Calonectria pseudonoviculata [ 36 ]; this is comparable with the EC 50 value obtained from menisporopsin A against Calonetria variabilis LCM 1067. Serial dilutions of mancozeb at 500, 1000, and 1500 µg/mL displayed 61.90%, 78.91%, and 90.48% of inhibition against Boeremia exigua , respectively, after 10 days of incubation [ 37 ]. In this study, we obtained similar EC 50 values for Colletotrichum species (20–35 µg/mL) for menisporopsin A and mancozeb.…”

Section: Discussionmentioning

confidence: 99%

Antifungal Activity of Menisporopsin A against Relevant Plant Pathogens

Rodriguez,

Barrios-Jaén,

Mejía

et al. 2024

JoF

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Current agrochemicals used in crop farming mainly consist of synthetic compounds with harmful effects on the environment and human health. Crop-associated fungal endophytes, which play many ecological roles including defense against pathogens, represent a promising source for bioactive and ecologically safer molecules in agrochemical discovery. The methanolic extract of the endophyte Menisporopsis sp. LCM 1078 was evaluated in vitro against the plant pathogens Boeremia exigua, Calonectria variabilis, Colletotrichum theobromicola, Colletotrichum tropicale, and Mycena cytricolor. Bioassay-guided isolation using chromatographic techniques followed by detailed chemical characterization by NMR and mass spectrometry led to the identification of menisporopsin A, which showed inhibitory activity in a dose-dependent manner against the five fungal pathogens including an endophytic strain (Colletotrichum tropicale), with MIC values in the range of 0.63–10.0 μg/mL showing a potency equivalent to the broadly employed agrochemical mancozeb.

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Section: Discussionmentioning

confidence: 99%