What does this research mean for the field?

Trichoderma polysporum is the causal agent of a newly identified postharvest rot disease in Morchella sextelata fruiting bodies. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Identify the fungal pathogen responsible for postharvest rot and white mycelial overgrowth on commercially stored Morchella sextelata fruiting bodies.

August 22, 2026Plant Disease

First Report of Postharvest Rot of Morchella sextelata Caused by Trichoderma polysporum in China

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Authors

ZLZ. H. LiuGuizhou University YCYunlong CongGuizhou University XLXiaolei LeiGuizhou University

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Implication

Pathological study identifies Trichoderma polysporum as the causal agent of postharvest rot in Morchella sextelata, highlighting critical targets for postharvest disease management.

Key Points

Identify the fungal pathogen responsible for postharvest rot and white mycelial overgrowth on commercially stored Morchella sextelata fruiting bodies.
Isolated fungal cultures from symptomatic M. sextelata fruiting bodies and evaluated colony and microscopic morphology on PDA, SNA, and CMD media.
Amplified and sequenced ITS, TEF1, and RPB2 gene regions for BLAST alignment and maximum likelihood phylogenetic tree reconstruction.
Conducted pathogenicity assays via surface spore-suspension inoculation on healthy fruiting bodies across nine biological replicates, repeated three times to fulfill Koch's postulates.
Morphological characteristics and multigene phylogenetic analysis of ITS, TEF1, and RPB2 sequences confirmed the isolates as Trichoderma polysporum with 100% bootstrap support.
Koch's postulates were fulfilled, with 100% of inoculated fruiting bodies developing typical tissue softening and white mycelia at 5 days post-inoculation compared to 0% in controls.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/6a895facca7ade938187e883 https://doi.org/10.1094/pdis-06-26-1229-pdn

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Implication

Pathological study identifies Trichoderma polysporum as the causal agent of postharvest rot in Morchella sextelata, highlighting critical targets for postharvest disease management.

First Report of Postharvest Rot of Morchella sextelata Caused by Trichoderma polysporum in China

Discussion

Member takes

Implication

Key Points

Cite This Study

First Report of Postharvest Rot of Morchella sextelata Caused by Trichoderma polysporum in China

Discussion

Member takes

Implication

Key Points

Cite This Study

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