Isolation and Characterization of Airborne Mushroom Damaging Trichoderma spp. from Indoor Air of Cultivation Houses Used for Oak Wood Mushroom Production Using Sawdust Media

Kim, Jun Young; Kwon, Hyuk Woo; Lee, Dong Hyeung; Ko, Han Kyu; Kim, Seong Hwan

doi:10.5423/ppj.ft.10.2019.0261

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…Krupke et al showed that Trichoderma aggressivum f. aggressivum produces antimicrobial enzymes in mushroom compost that inhibit the mycelial growth of A. bisporus [76]. In Korea, oak wood mushrooms are primarily infested by Trichoderma species, which produce lignin-degrading extracellular enzymes that inhibit the host mycelial growth [77]. Upon infestation by Trichoderma spp., which cause green mold, it has been reported as a major constraint and common disease that leads to extensive damage to the mycelium and sporocarps of edible fungus [78,79].…”

Section: Discussionmentioning

confidence: 99%

Regulation of Intracellular Reactive Oxygen Species Levels after the Development of Phallus rubrovolvatus Rot Disease Due to Trichoderma koningii Mycoparasitism

Wen

Guo³

et al. 2023

JoF

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Phallus rubrovolvatus is a unique mushroom used for medicinal and dietary purposes in China. In recent years, however, the rot disease of P. rubrovolvatus has seriously affected its yield and quality, becoming an economically important threat. In this study, samples of symptomatic tissues were collected, isolated, and identified from five major P. rubrovolvatus production regions in Guizhou Province, China. Based on combined analyses of phylogenies (ITS and EF1-α), morphological characteristics and Koch’s postulates, Trichoderma koningiopsis and Trichoderma koningii were identified as the pathogenic fungal species. Among these, T. koningii exhibited stronger pathogenicity than the other strains; thus, T. koningii was used as the test strain in the follow-up experiments. Upon co-culturing T. koningii with P. rubrovolvatus, the hyphae of the two species were intertwined, and the color of the P. rubrovolvatus hyphae changed from white to red. Moreover, T. koningii hyphae were wrapped around P. rubrovolvatus hyphae, leading to their shortening and convolution and ultimately inhibiting their growth due to wrinkling; T. koningii penetrated the entire basidiocarp tissue of P. rubrovolvatus, causing serious damage to the host basidiocarp cells. Further analyses revealed that T. koningii infection resulted in the swelling of basidiocarps and significantly enhanced the activity of defense-related enzymes, such as malondialdehyde, manganese peroxidase, and polyphenol oxidase. These findings offer theoretical support for further research on the infection mechanisms of pathogenic fungi and the prevention of diseases caused by them.

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Section: Discussionmentioning

confidence: 99%

Regulation of Intracellular Reactive Oxygen Species Levels after the Development of Phallus rubrovolvatus Rot Disease Due to Trichoderma koningii Mycoparasitism

Wen

Guo³

et al. 2023

JoF

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“…However, Trichoderma spp. are also common pathogens on mushrooms (Choi et al 2010;Colavolpe et al 2015;Kim et al 2019). They can seriously influence the yield and quality of mushrooms during their cultivation, and thus significantly reduce the economic value in largescale productions.…”

mentioning

confidence: 99%

Occurrence of green mold disease on Dictyophora rubrovolvata caused by Trichoderma koningiopsis

et al. 2021

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Dictyophora rubrovolvata is an important edible mushroom that is widely cultivated in China. In 2019, a serious rot disease on D. rubrovolvata was observed in a mushroom production facility located in Ce Heng County, Southwest of Guizhou Province, China. The causal agent was identified as Trichoderma koningiopsis by amplification and sequencing of the internal transcribed spacer (ITS) region, the translation elongation factor 1-alpha (EF-1α) gene, and the RNA polymerase II subunit (RPB2) gene followed by phylogenetic analysis. Koch's postulates were confirmed by a pathogenicity test that was conducted with healthy D. rubrovolvata, including re-isolation and identification. To our knowledge, this is worldwide the first report of T. koningiopsis as a pathogen on D. rubrovolvata causing green mold disease.

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Green mould contamination of Pleurotus pulmonarius cultivation in Malaysia: Unravelling causal agents and water source as critical factors

Ajis,

Tan,

Chai

2024

Fungal Biology

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Isolation and Characterization of Airborne Mushroom Damaging Trichoderma spp. from Indoor Air of Cultivation Houses Used for Oak Wood Mushroom Production Using Sawdust Media

Cited by 6 publications

References 21 publications

Regulation of Intracellular Reactive Oxygen Species Levels after the Development of Phallus rubrovolvatus Rot Disease Due to Trichoderma koningii Mycoparasitism

Regulation of Intracellular Reactive Oxygen Species Levels after the Development of Phallus rubrovolvatus Rot Disease Due to Trichoderma koningii Mycoparasitism

Occurrence of green mold disease on Dictyophora rubrovolvata caused by Trichoderma koningiopsis

Green mould contamination of Pleurotus pulmonarius cultivation in Malaysia: Unravelling causal agents and water source as critical factors

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