Unravelling the Transcriptional Response of Agaricus bisporus under Lecanicillium fungicola Infection
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ABSTRACT:
SUBMITTER: Quiroz L
PROVIDER: S-EPMC10815960 | biostudies-literature | 2024 Jan
REPOSITORIES: biostudies-literature
Similar Datasets
Project description:Genome sequence of Lecanicillium fungicola I50-1
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Project description:The Cys2His2 zinc finger protein gene c2h2 of Schizophyllum commune is involved in mushroom formation. Its inactivation results in a strain that is arrested at the stage of aggregate formation. In this study, the c2h2 orthologue of Agaricus bisporus was over-expressed in this white button mushroom forming basidiomycete using Agrobacterium-mediated transformation. Morphology, cap expansion rate, and total number and biomass of mushrooms were not affected by over-expression of c2h2. However, yield per day of the c2h2 over-expression strains peaked 1 day earlier. These data and expression analysis indicate that C2H2 impacts timing of mushroom formation at an early stage of development, making its encoding gene a target for breeding of commercial mushroom strains.
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Project description:Respiratory bursts were observed in A. bisporus. CO2 production and O2 consumption increased up to 3.5 fold during these 3 h bursts while compost temperature increased up to 3 °C. We set out to find which pathways were characteristic for these bursts and the interval between these bursts.
2021-02-24 | GSE124976 | GEO
Project description:Agaricus bisporus is a soil-inhabiting fungus which is cultivated for production of white button mushrooms. A disease of A. bisporus has been previously described with a range of disease symptoms (yield loss, pinning delay, cap distortions and cap browning) which has been given collective name of “Mushroom Virus X” (MVX). The causes of this disease are not clear however prior to this research an association was found between the disease and double-stranded RNA molecules in the mushroom fruitbodies. The experiment was designed to examine causes and host responses of the disease causing the Brown Cap symptom in the cultivated mushroom A. bisporus. This microarray experiment was performed before the Agaricus bisporus genome was sequenced. The gene sequences used to design probes were from known and novel A. bisporus sequences and sequences of transcript fragments identified by Suppression Subtractive Hybridization of non-symptomatic and virus-diseased A. bisporus mushroom fruitbodies. The A. bisporus mushroom fruitbodies were grown on composted wheat straw using commercial cultivation procedures. The gene expression comparison was made of RNA isolated from 32 mushroom fruitbodies (Agaricus bisporus) samples: 20 samples from 5 separate virus-infected commercial mushroom farms with crops displaying the brown symptom (4 replicate samples per farm) and 12 samples from a non-infected crop grown at the University of Warwick. The precise composition of the viral load was the subject of this and future research/papers. Abstract of Manuscript submitted to Applied and Environmental Microbiology: Characterizing the viral agents causing brown cap mushroom disease of Agaricus bisporus by Daniel Eastwood, Julian Green, Helen Grogan, and Kerry Burton (Paper #AEM01093-15). The symptoms of viral infections of fungi range from cryptic to severe but there is little knowledge of the factors involved in this transition of fungal/viral interactions. Brown Cap Mushroom Disease of the cultivated Agaricus bisporus is economically important and represents a model system to describe this transition. Differentially expressed transcript fragments between mushrooms showing the symptoms of Brown Cap Mushroom Disease and control white non-infected mushrooms have been identified and sequenced. Ten of these RNA fragments have been found to be up-regulated over a thousand-fold between diseased and non-diseased tissue but are absent from the Agaricus bisporus genome sequence and hybridise to double-stranded RNA’s extracted from diseased tissue. We hypothesize these transcript fragments are viral and represent components of the disease-causing agent, a bipartite virus with similarities to the family Partitiviridae. The virus fragments were found at two distinct levels within infected mushrooms, at raised levels in infected, non-symptomatic, white coloured mushrooms and much greater levels (3,500-87,000 times greater) in infected mushrooms exhibiting brown colouration. In addition, differential screening revealed 9 up-regulated and 32 down-regulated host Agaricus bisporus transcripts. Chromametric analysis was able to distinguish colour differences between non-infected white mushrooms and white infected mushrooms at an early stage of mushroom growth. This method may be the basis for an ‘on-farm’ disease detection assay.
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