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Beauveria bassiana

ABSTRACT: Chemical warfare does not always win – rapid evolution of increased virulence in Beauveria bassiana

PROVIDER: PRJNA291528 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2136030_1.fastq.gz	Fastqsanger.gz
	SRR2136030_2.fastq.gz	Fastqsanger.gz
	SRR2136040_1.fastq.gz	Fastqsanger.gz
	SRR2136040_2.fastq.gz	Fastqsanger.gz
	SRR2136021_1.fastq.gz	Fastqsanger.gz

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Chemical warfare does not always win – rapid evolution of increased virulence in Beauveria bassiana

Project description:Virulence is a key trait under selection during host-parasite coevolution. In order to obtain increased fitness, parasites are predicted to increase their ability to circumvent and overcome host immunity. A particular challenge for pathogens are external immune systems, found among various invertebrates. Such external immune systems are chemical defence systems comprised of highly potent antimicrobial compounds released by prospective hosts into the environment. We carried out a coevolution experiment with the entomopathogenic fungus, Beauveria bassiana, and the red flour beetle, Tribolium castaneum, which has a well-documented external immune system. Surprisingly, after just seven transfers of experimental evolution we saw a significant increase in virulence in all B. bassiana. This increase in virulence was mainly the result of the B. bassiana isolates evolving resistance to the external immune defences of the T. castaneum beetles, but not obviously through the increased production of toxins or other harmful substances. Furthermore, transcriptomic analyses of B. bassiana RNA-seq data implicates up-regulation of genes responsible for resistance to oxidative stress underlying the observed resistance. We conclude that external immunity acts as a powerful selective force for virulence evolution, with an increase in virulence being achieved apparently entirely by overcoming these defences, most likely due to elevated oxidative stress resistance.

2017-03-09 | GSE71570 | GEO

Transcriptomic analysis of LaeA and LaeB deletion strains in fungus Beauveria bassiana

Project description:Transcriptomic analysis of LaeA-deletion and overexpression LaeB in LaeA deletion strains in fungus Beauveria bassiana Examination of differential gene expressions by Beauveria bassiana wild type, LaeA-deletion and overexpression LaeB in LaeA deletion strains in fungus Beauveria bassiana

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Grapevine response to Beauveria bassiana treatment

Project description:Fungal entomopathogens like Beauveria bassiana (Bals.) Vuill. (Ascomycota: Hypocreales) are known as antagonist of insects with multiple functional and ecological roles and have attracted increased attention as biocontrol agents in integrated pest management programs. A microarray analysis was performed to work out fundamental aspects of genes involved in the interaction between grapevine and the endophytic fungus B. bassiana. The results indicate an up-regulation of diverse defense-related genes in grapevine as a response to a treatment with B. bassiana

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Ssr4-regulated genes in Beauveria bassiana

Project description:Ssr4 was experimentally proven to be required for radial growth, aerial conidation, insect infection and virulence-related cellular events in the insect mycopathogen Beauveria bassiana. For in-depth insight into the essential role of Ssr4 in the insect mycopathogen, transcriptomic analysis was carried out via high throughput sequencing (RNA-Seq), resulting in nearly one fourth of the whole genome differentially expressed in the Dssr4 mutant versus wild-type strain.

2019-06-06 | GSE132211 | GEO

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Project description:Beauveria bassiana Transcriptome

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Rad6,an E2 enzymes required for insect-pathogenic lifestyle, UV damage repair, and genomic expression of Beauveria bassiana

Project description:This transcriptomic analysis aims at unveiling all possible genes orchestrated by Rad6, which is evidently required for insect pathogenicity , virulence-related cellular events and UV damage repair of Beauveria bassiana

2023-10-17 | GSE245232 | GEO

Profound effect of a small cysteine-free protein (pspA) on genomic expression of Beauveria bassiana

Project description:Purpose: This transcriptomic analysis aims at unveiling all possible genes orchestrated by pspA, which is evidently required for insect pathogenicity and virulence-related cellular events of Beauveria bassiana. Methods: Total RNAs were extracted from three 3-day-old hyphal cultures (replicates) of pspA disruption and wild-type strains grown under normal culture conditionsand and subjected to deep sequencing on Illumina NovaseqTM 6000 platform. The sequence reads that passed quality filters were mapped to the genome of Beauveria bassiana. All genes differentially expressed in the disruptant versus the wild-type strain were enriched to GO function classes and KEGG pathways. Results: The resultant transcriptome comprises 10430 genes annotated or not annotated. Among those, 1818 genes (genomic 17.54%) were dysregulated in the absence of pspA, including 806 down-regulated and 1012 up-regulated. Conclusions: pspA lacking any predictable function domain has profound impact on the genomic expression of Beauveria bassiana.

2020-10-01 | GSE158758 | GEO

Genome-wide effect of carbon catabolic repressor 1 (Cre1) on genomic expression of Beauveria bassiana

Project description:Purpose: This transcriptomic analysis aims at unveiling all possible genes orchestrated by Cre1, which is evidently required for insect pathogenicity and virulence-related cellular events of Beauveria bassiana. Methods: Total RNAs were extracted from three 3-day-old hyphal cultures (replicates) of cre1 deletion and wild-type strains grown under normal culture conditionsand and subjected to deep sequencing on Illumina NovaseqTM 6000 platform. The sequence reads that passed quality filters were mapped to the genome of Beauveria bassiana. All genes differentially expressed in the deletion mutant versus the wild-type strain were enriched to GO function classes and KEGG pathways. Results: The resultant transcriptome comprises 10364 genes annotated or not annotated. Among those, 1881 genes (genomic 18.149%) were dysregulated in the absence of cre1, including 1117 down-regulated and 764 up-regulated. Conclusions: Cre1 has profound impact on the genomic expression of Beauveria bassiana.

2021-10-02 | GSE184973 | GEO

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Project description:Beauveria bassiana Genome sequencing

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Project description:Beauveria bassiana Genome sequencing

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