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Limodorum abortivum

ABSTRACT: Limodorum abortivum overview

PROVIDER: PRJNA698695 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12850908_1.fastq.gz	Fastqsanger.gz
	SRR12850908_2.fastq.gz	Fastqsanger.gz
	SRR12850909_1.fastq.gz	Fastqsanger.gz
	SRR12850909_2.fastq.gz	Fastqsanger.gz
	SRR12850910_1.fastq.gz	Fastqsanger.gz

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Entoloma abortivum

Project description:Entoloma abortivum

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Transcriptomics reveals the mycoparasitic strategy of the mushroom Entoloma abortivum on species of the mushroom Armillaria

Project description:During mycoparasitism, a fungus—the host—is parasitized by another fungus—the mycoparasite. The genetic underpinnings of these relationships have been best characterized in Ascomycete fungi. However, within Basidiomycete fungi, there are rare instances of mushroom-forming species parasitizing the reproductive structures, or sporocarps, of other mushroom-forming species. One of the most enigmatic of these occurs between Entoloma abortivum and species of Armillaria, where hyphae of E. abortivum are hypothesized to disrupt the development of Armillaria sporocarps, resulting in the formation of carpophoroids. However, it remains unknown whether carpophoroids are the direct result of a mycoparasitic relationship. To address the nature of this unique interaction, we analyzed gene expression of field-collected Armillaria and E. abortivum sporocarps and carpophoroids. Transcripts in the carpophoroids are primarily from E. abortivum, supporting the hypothesis that this species is parasitizing Armillaria. Most notably, we identified differentially expressed E. abortivum β-trefoil-type lectins in the carpophoroid, which we hypothesize bind to Armillaria cell wall galactomannoproteins, thereby mediating recognition between the mycoparasite and the host. The most significantly upregulated E. abortivum transcripts in the carpophoroid code for oxalate decarboxylases—enzymes that degrade oxalic acid. Oxalic acid is a virulence factor in many plant pathogens, including Armillaria species, however, E. abortivum has evolved a sophisticated strategy to overcome this defense mechanism. The number of gene models and genes that code for carbohydrate-active enzymes in the E. abortivum transcriptome were reduced compared to other closely related species, perhaps as a result of the specialized nature of this interaction.

2021-09-23 | GSE183699 | GEO

Limodorum abortivum isolate:Jerusalem mountain

Project description:Limodorum abortivum isolate:Jerusalem mountain Genome sequencing

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Large-scale transcriptomics provides insights on the mycorrhizal symbiosis of the Mediterranean orchid Limodorum abortivum in nature

Project description:The study of orchid mycorrhizal interactions is particularly complex because of the peculiar life cycle of these plants and their diverse trophic strategies. Here, large-scale transcriptomics has been applied to investigate gene expression in the mycorrhizal roots of the terrestrial mixotrophic orchid Limodorum abortivum under natural conditions. Our results provide new insights into the mechanisms underlying plant-fungus interactions in orchids and in particular on the plant responses to the mycorrhizal symbiont(s) in adult roots. Comparison with gene expression in mycorrhizal roots of another orchid species, Oeceoclades maculata, suggests that amino acids may represent the main nitrogen source in both protocorms and adult orchids, at least for mixotrophic species. The upregulation, in mycorrhizal L. abortivum roots, of some symbiotic molecular marker genes identified in mycorrhizal roots from other orchids as well as in arbuscular mycorrhiza, suggests a common plant core of genes in endomycorrhizal symbioses. Further efforts will be required to understand whether the specificities of orchid mycorrhiza depend on fine-tuned regulation of these common components, or whether specific additional genes are involved.

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Transcriptomics reveals the mycoparasitic strategy of the mushroom Entoloma abortivum on species of the mushroom Armillaria

Project description:Transcriptomics reveals the mycoparasitic strategy of the mushroom Entoloma abortivum on species of the mushroom Armillaria

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Large-scale transcriptomics provides insights on the mycorrhizal symbiosis of the Mediterranean orchid Limodorum abortivum in nature

Project description:Large-scale transcriptomics provides insights on the mycorrhizal symbiosis of the Mediterranean orchid Limodorum abortivum in nature

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Project description:Limodorum abortivum chloroplast genome

| PRJNA481308 | ENA

A Transcriptomic Approach Provides Insights on the Mycorrhizal Symbiosis of the Mediterranean Orchid Limodorum abortivum in Nature.

Project description:The study of orchid mycorrhizal interactions is particularly complex because of the peculiar life cycle of these plants and their diverse trophic strategies. Here, transcriptomics has been applied to investigate gene expression in the mycorrhizal roots of Limodorum abortivum, a terrestrial mixotrophic orchid that associates with ectomycorrhizal fungi in the genus Russula. Our results provide new insights into the mechanisms underlying plant-fungus interactions in adult orchids in nature and in particular into the plant responses to the mycorrhizal symbiont(s) in the roots of mixotrophic orchids. Our results indicate that amino acids may represent the main nitrogen source in mycorrhizal roots of L. abortivum, as already suggested for orchid protocorms and other orchid species. The upregulation, in mycorrhizal L. abortivum roots, of some symbiotic molecular marker genes identified in mycorrhizal roots from other orchids as well as in arbuscular mycorrhiza, may mirror a common core of plant genes involved in endomycorrhizal symbioses. Further efforts will be required to understand whether the specificities of orchid mycorrhiza depend on fine-tuned regulation of these common components, or whether specific additional genes are involved.

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Project description:A genomic overview of in vivo binding of a transcription factor Tbx6b in the ascidian early gastrula embryo.

2010-03-09 | GSE17694 | GEO

SoxC ChIP-chip on Ciona intestinalis embryo (early gastrula)

Project description:A genomic overview of in vivo binding of a transcription factor SoxC in the ascidian early gastrula embryo.

2010-03-09 | GSE17692 | GEO