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Transcriptome analysis of Aofus3 in nematode-trapping fungus Arthrobotrys oligospora

ABSTRACT: Transcriptomic analysis revealed that differentially expressed genes in the absence of Aofus3 were involved in cell fusion, repair, and cellcommunication during trap formation.

ORGANISM(S): Orbilia oligospora

PROVIDER: GSE212172 | GEO | 2023/06/28

REPOSITORIES: GEO

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Transcriptome analysis of Aoswi6 in nematode-trapping fungus Arthrobotrys oligospora

Project description:Transcriptomic analysis revealed that differentially expressed genes in the absence of Aoswi6 were involved in DNA replication, repair, and recombination during trap formation.

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Transcriptome analysis of Aomsn2 in nematode-trapping fungus Arthrobotrys oligospora

Project description:Transcriptomic analysis revealed that differentially expressed genes in the absence of Aomsn2 were involved in TCA cycle, fatty acid degradation, oxidative phosphorylation.

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Transcriptome analysis of AoNmd5 in nematode-trapping fungus Arthrobotrys oligospora

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Transcriptome analysis of AoPEX14/17 in nematode-trapping fungus Arthrobotrys oligospora

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AoSte12 is required for mycelial development, conidiation, trap morphogenesis, and secondary metabolism by regulating hyphal fusion in nematode-trapping fungus of Arthrobotrys oligospora [gene expression]

Project description:Transcriptomic analysis revealed that differentially expressed genes in the absence of AoSte12 were involved in mycelial growth, development process,conidiation, cell nucleus and trap formation.

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Transcriptome analysis of AoPEX1 and AoPEX6 in nematode-trapping fungus Arthrobotrys oligospora

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The complete mitochondrial genomes of the nematode-trapping fungus <i>Arthrobotrys oligospora</i>.

Project description:Arthrobotrys oligospora is a potential candidate of biocontrol agents against plant and animal parasitic nematodes. In this study, the complete mitochondrial genome of A.oligospora was sequenced. This mitogenome is a circular molecule of 160,613?bp in length. Gene annotation showed that 44 putative protein-coding genes and 24 tRNAs, all located on the same strand. The evolutionary relationships between A. oligospora and other representative ascomycetes were revealed based on sequences at the 14 concatenated mitochondrial protein-coding genes.

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Genome-wide expression profiling of nematode-trapping fungus Arthrobotrys oligospora ku70 and ste12 strains upon nematode exposure

Project description:We report the transcriptomic comparisions between ku70 control and ste12 mutant strains in nematode-trapping fungus Arthrobotrys oligospora when induced with nematodes. Fungal Ste12 transcription factor and the upstream MAPK cascade are highly conserved and plays a role in host sensing and pathogenesis in various fungal pathogens. Identification of Ste12-dependent in A. oligospora may provide further insights into the molecular mechanisms of nematode-sensing and trap morphogenesis. The reference assemly used for remapping is A. oligospora TWF154 (GenBank assembly accession: GCA_004768765.1)

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Transcriptomic analysis reveals that Rho GTPases regulate trap development and lifestyle transition of the nematode-trapping fungus Arthrobotrys oligospora

Project description:Nematode-trapping (NT) fungi can form unique infection structures (traps) to capture and kill free-living nematodes, thus play a potential role in the biocontrol of nematodes. Arthrobotrys oligospora is a representative species of the NT fungi. Here we performed dual RNA-seq to understand the interaction between A. oligospora and Caenorhabditis elegans. We identified 5752 unique differentially expressed genes during trap formation and predation, and the rac gene was significantly upregulated. Alternative splicing events occurred in 896 2012 genes, including the rac and rho2 gene. Further, we characterized three Rho GTPases (Rho2, Rac, and Cdc42) in A. oligospora using gene disruption and multi-phenotypic analysis. The analyses showed that AoRac and AoCdc42 play an important role in mycelium growth, lipid accumulation, DNA damage, sporulation, trap formation, pathogenicity, and stress response in A. oligospora. Furthermore, AoCdc42 and AoRac specifically interacted with components of the Nox complex, thus regulating the production of reactive oxygen species. Furthermore, the transcript levels of several genes associated with the protein kinase A, mitogen-activated protein kinase, and p21-activated kinase were also altered in the mutants, suggesting that Rho GTPases might function upstream of these kinases. This study highlights the important role of Rho GTPases in A. oligospora and provides insights into the regulatory mechanism of signaling pathways in trap morphogenesis and lifestyle transition of NT fungi.

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