Competitive exclusion of insect parasitic fungi: Enhanced metabolite biosynthesis in Beauveria bassiana and fatty acid production in Metarhizium robertsii during host coinfection
文献类型： 外文期刊
作者： Liu, Kexin 1 ; Li, Gen 1 ; Wu, Siying 1 ; Zhang, Yang 1 ; Zhou, Rong 2 ; Lv, Cheng 1 ; Yue, Xingcheng 1 ; Zhu, Zhuoran 1 ; Zhou, Tianzi 1 ; Huang, Bo 1 ; Wang, Yulong 1 ;
作者机构： 1.Anhui Agr Univ, Anhui Prov Key Lab Biol Control, Hefei 230036, Peoples R China
2.Anhui Acad Agr Sci, Sericulture Res Inst, Hefei 230036, Peoples R China
关键词： Entomopathogenic fungi; Competition; In vivo; Fatty acid biosynthesis; 2-pyridone
期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：4.0； 五年影响因子：4.5 ）
ISSN： 0048-3575
年卷期： 2025 年 214 卷
页码：
收录情况： SCI
摘要： Microbial consortia, involving two or more microorganisms, have been explored for pest management purposes, despite concerns regarding competitive exclusion among entomopathogenic fungi that may undermine synergistic effects. However, the precise molecular mechanisms governing entomopathogen competition in vivo remain inadequately elucidated. Here, we investigate competitive exclusion dynamics between two prominent entomopathogens, Metarhizium robertsii and Beauveria bassiana. Coinfection assays employing diverse strains of B. bassiana and M. robertsii, varying in virulence, reveal inter-specific competition leading to reduced pathogenicity to Galleria mellonella. Both fungi exhibit inhibited hindwing penetration efficiencies during coinfection, with M. robertsii demonstrating superior competitive ability within the insect host. Transcriptome analysis highlights the regulation of the MAPK signaling pathway by both fungi during host coinfection. In vivo, enhanced fatty acid biosynthesis is observed in M. robertsii, contrasting with the activation of 2-pyridone production in B. bassiana. In the insect hemocoels, overexpression of the fatty acid synthase gene (FAST) significantly increases M. robertsii ratios during mixed infections, whereas FAST silencing decreases these ratios. Conversely, minimal changes in M. robertsii ratios are observed following FAST expression modulation in artificial medium co-cultures. Our study confirms that inter-species competitive exclusion among insect parasitic fungi diminishes pathogenicity, underscore the intricate interactions between entomopathogenic fungi and emphasize the caution required when considering combined fungal parasite strategies for insect pest control.
- 相关文献
作者其他论文 更多>>
-
Dissecting the multifaceted influence of the MrBHLH1 transcription factor on development, stress response, and virulence in Metarhizium robertsii
作者：Qu, Jiaojiao;Tong, Youmin;Yang, Limei;Wu, Hao;Chen, Mingyue;Huang, Bo;Tong, Youmin;Wu, Hao
关键词：
Metarhizium robertsii ; bHLH transcription factors; fungal development; stress tolerance; virulence -
The Mulberry WRKY Transcription Factor MaWRKYIIc7 Participates in Regulating Plant Drought Stress Tolerance
作者：Su, Xueqiang;Zhao, Manli;Zhou, Rong;Xu, Cuimin;Zhang, Ran;Li, Ruixue;Wang, Taichu
关键词：mulberry; WRKY TFs; drought stress; transcriptional regulation
-
Growth-promoting effects of arbuscular mycorrhizal fungus Funneliformis mosseae in rice, sesame, sorghum, Egyptian pea and Mexican hat plant
作者：Zhou, Rong;Raza, Ali;Raza, Ali;Song, Jueping;Li, Qian;Huang, Miaomiao;Janiad, Sara;Hassan, Muhammad Ahmad
关键词：arbuscular mycorrhizal fungi; plant growth; plant nutrition; growth promoter; physiological parameters
-
Genome-Wide Analysis of the NBS-LRR Gene Family and SSR Molecular Markers Development in Solanaceae
作者：Song, Xiaoming;Jia, Li;Song, Xiaoming;Jia, Li;Song, Xiaoming;Li, Chunjin;Liu, Zhuo;Shen, Shaoqin;Yu, Tong;Li, Nan;Zhou, Rong;Zhou, Rong
关键词：Solanaceae;
NBS-LRR ; phylogenetic analysis; whole genome duplication/triplication (WGD/T); SSR development -
Strain-Specific Infection of Phage AP1 to Rice Bacterial Brown Stripe Pathogen Acidovorax oryzae
作者：Liu, Mengju;Zhang, Yang;Huang, Xuefang;Xu, Xinyan;Ahmed, Temoor;Li, Bin;Zhang, Yang;Gu, Chunyan;Luo, Jinyan;Shen, Ying;Ahmed, Temoor;Alodaini, Hissah Abdulrahman;Hatamleh, Ashraf Atef;Wang, Yanli
关键词：phage;
Acidovorax oryzae ;Podoviridae ; interaction; LPS -
Molecular mechanism of mulberry response to drought stress revealed by complementary transcriptomic and iTRAQ analyses
作者：Li, Ruixue;Su, Xueqiang;Zhou, Rong;Zhang, Yuping;Wang, Taichu
关键词：Mulberry; Drought stress; Transcriptomic; iTRAQ; Molecular mechanism
-
Comparative genomic analysis of superoxide dismutase (SOD) genes in three Rosaceae species and expression analysis in Pyrus bretschneideri
作者：Li, Guohui;Zhang, Yang;Zhao, Yu;Wang, Han;Chen, Tianzhe;Cheng, Xi;Cai, Yongping;Hu, Fei
关键词：Superoxide dismutases (SODs); Pyrus bretschneideri; Expression analysis; Lignin; Rosaceae species
