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September 10, 2025

Fungal Endophytes from Chilli and their Antagonism against Colletotrichum capsici

Key Points

Endophytic fungal isolates showed significant antagonistic activity against C. capsici, with UHSFS5 demonstrating 74.68% mycelial inhibition.
Out of 19 isolates examined, UHSFS5 was identified as belonging to the genus Aspergillus based on cultural and morphological traits.
In vitro dual culture assays were employed to assess the efficacy of fungal endophytes in managing chilli diseases caused by C. capsici.
Findings support that fungal endophytes could play a significant role in managing chilli anthracnose, enhancing crop production.

Abstract

AbstractThe Colletotrichum capsici incited anthracnose/fruit rot posing a serious threat to commercial chilli production in India. In the present study, the fungal endophytes from chilli were explored in effort to combat the pathogen. 19 endophytic fungal isolates isolated from leaf, stem and root of healthy chilli plant exhibited antagonistic activity against C. capsici in dual culture assay under in vitro. Among them endophyte, UHSFS5 demonstrated the highest pathogen mycelial inhibition (74.68 %). Based on the cultural and morphological characteristics UHSFS5 was identified to be belonged to Aspergillus genus. Upon its accurate molecular identification, pathogenicity and enumerating its efficacy in pot and field and accurate molecular identification it may be employed to combat the chilli anthracnose disease.

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