Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrol

In this study, we isolated 633 Trichoderma strains from 15 forest types across six climate zones. Our findings revealed that species diversity was highly underestimated, with 239 isolates identified as new species based on ITS, rpb2, and tef1 sequences. In tropical and subtropical regions, the mean...

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Main Authors: Kai Dou, Zhenxu Bai, Fuli Zhang, Hongyi Liu, Xifen Zhang, Cheng Zhang, Yaqian Li, Jie Chen
Format: Article
Language:English
Published: Taylor & Francis Group 2025-05-01
Series:Mycology
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Online Access:https://www.tandfonline.com/doi/10.1080/21501203.2025.2500603
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author Kai Dou
Zhenxu Bai
Fuli Zhang
Hongyi Liu
Xifen Zhang
Cheng Zhang
Yaqian Li
Jie Chen
author_facet Kai Dou
Zhenxu Bai
Fuli Zhang
Hongyi Liu
Xifen Zhang
Cheng Zhang
Yaqian Li
Jie Chen
author_sort Kai Dou
collection DOAJ
description In this study, we isolated 633 Trichoderma strains from 15 forest types across six climate zones. Our findings revealed that species diversity was highly underestimated, with 239 isolates identified as new species based on ITS, rpb2, and tef1 sequences. In tropical and subtropical regions, the mean values for the haplotype Chao1 richness index and the Shannon-Weiner diversity index are 73 and 3, respectively, significantly higher than those in temperate regions. Trichoderma cf. taiwanense was the most widely distributed, followed by T. asperellum, rather than widely reported T. harzianum. The maximum entropy model was used to analyse the effects of climatic factors on distribution of T. cf. taiwanense and T. asperellum, and showed that precipitation in the warmest quarter was the most important factor influencing their distribution. T. cf. taiwanense zj625y demonstrated significantly higher antagonistic ability, outperforming the other tested Trichoderma species. The genomic characteristics of T. cf. taiwanense were firstly revealed with 36.49 Mbp in size and contained 17 genes of β-1,3-glucanase and 24 genes of chitinase genes. Additionally, the activities of endochitinase, endo-1,3(4)-β-glucanase, and metallopeptidase were highly expressed in culture. Metabolomic analysis further identified specific substances produced by T. cf. taiwanense zj625y, such as ergothioneine, (3-carboxypropyl) trimethylammonium cation, NG-dimethyl-L-arginine (ADMA), N-acetyl-D-glucosamine, stearic acid, tyramine, citrate, L-leucine, and acetylcarnitine, which contribute to its potential antagonism and environmental adaptability.
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spelling doaj-art-0c75c689c28d43b28bb40fcd68ca77472025-08-20T03:48:26ZengTaylor & Francis GroupMycology2150-12032150-12112025-05-0112110.1080/21501203.2025.2500603Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrolKai Dou0Zhenxu Bai1Fuli Zhang2Hongyi Liu3Xifen Zhang4Cheng Zhang5Yaqian Li6Jie Chen7School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, ChinaSchool of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, ChinaHenan Province Key Laboratory of Efficient Crop Production and Food Quality Safety, Zhoukou Normal University, Zhoukou, ChinaSchool of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, ChinaSchool of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, ChinaSchool of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, ChinaSchool of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, ChinaSchool of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, ChinaIn this study, we isolated 633 Trichoderma strains from 15 forest types across six climate zones. Our findings revealed that species diversity was highly underestimated, with 239 isolates identified as new species based on ITS, rpb2, and tef1 sequences. In tropical and subtropical regions, the mean values for the haplotype Chao1 richness index and the Shannon-Weiner diversity index are 73 and 3, respectively, significantly higher than those in temperate regions. Trichoderma cf. taiwanense was the most widely distributed, followed by T. asperellum, rather than widely reported T. harzianum. The maximum entropy model was used to analyse the effects of climatic factors on distribution of T. cf. taiwanense and T. asperellum, and showed that precipitation in the warmest quarter was the most important factor influencing their distribution. T. cf. taiwanense zj625y demonstrated significantly higher antagonistic ability, outperforming the other tested Trichoderma species. The genomic characteristics of T. cf. taiwanense were firstly revealed with 36.49 Mbp in size and contained 17 genes of β-1,3-glucanase and 24 genes of chitinase genes. Additionally, the activities of endochitinase, endo-1,3(4)-β-glucanase, and metallopeptidase were highly expressed in culture. Metabolomic analysis further identified specific substances produced by T. cf. taiwanense zj625y, such as ergothioneine, (3-carboxypropyl) trimethylammonium cation, NG-dimethyl-L-arginine (ADMA), N-acetyl-D-glucosamine, stearic acid, tyramine, citrate, L-leucine, and acetylcarnitine, which contribute to its potential antagonism and environmental adaptability.https://www.tandfonline.com/doi/10.1080/21501203.2025.2500603Trichodermageographical distributiongenomicmetabolomicbiological control
spellingShingle Kai Dou
Zhenxu Bai
Fuli Zhang
Hongyi Liu
Xifen Zhang
Cheng Zhang
Yaqian Li
Jie Chen
Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrol
Mycology
Trichoderma
geographical distribution
genomic
metabolomic
biological control
title Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrol
title_full Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrol
title_fullStr Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrol
title_full_unstemmed Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrol
title_short Trichoderma species from typical forests system in China: Geographical distribution and comparative genome-wide evaluation of selected species related to biocontrol
title_sort trichoderma species from typical forests system in china geographical distribution and comparative genome wide evaluation of selected species related to biocontrol
topic Trichoderma
geographical distribution
genomic
metabolomic
biological control
url https://www.tandfonline.com/doi/10.1080/21501203.2025.2500603
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