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Endocarpon pusillum

ABSTRACT: Lichen-forming fungus

PROVIDER: PRJNA239273 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR12527635_1.fastq.gz	Fastqsanger.gz
	SRR12527635_2.fastq.gz	Fastqsanger.gz
	SRR12527637_1.fastq.gz	Fastqsanger.gz
	SRR12527637_2.fastq.gz	Fastqsanger.gz

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Draft Genome Sequence of Endocarpon pusillum Strain KoLRILF000583.

Project description:Lichen Endocarpon pusillum is a highly desiccation-tolerant and dominant species in biological soil crusts in arid and semi-arid regions. We report the draft genome sequence of a lichen-forming fungus, E. pusillum strain KoLRILF000583. The draft genome assembly has a size of 37,173,200 bp with a GC content of 49.71%, consisting of 40 scaffolds.

| S-EPMC4031340 | biostudies-literature

Endocarpon pusillum Z07020

Project description:Endocarpon pusillum Z07020 Genome sequencing and assembly

| PRJNA181958 | ENA

Endocarpon pusillum strain:EPUS1.4

Project description:Endocarpon pusillum strain:EPUS1.4 Genome sequencing and assembly

| PRJNA589713 | ENA

Complete Genome Sequence of an Australian Strain of the Lichen-Forming Fungus Endocarpon pusillum (Hedwig).

Project description:The cosmopolitan lichen-forming fungus Endocarpon pusillum (Hedwig) has previously been used as a model for the study of symbiosis and drought resistance. Here, we present the annotated genome of the Australian strain Endocarpon pusillum EPUS1.4. This genome sequence provides additional information on the ability of this species to produce secondary metabolites.

| S-EPMC7729407 | biostudies-literature

Genome characteristics reveal the impact of lichenization on lichen-forming fungus Endocarpon pusillum Hedwig (Verrucariales, Ascomycota).

Project description:BACKGROUND:Lichen is a classic mutualistic organism and the lichenization is one of the fungal symbioses. The lichen-forming fungus Endocarpon pusillum is living in symbiosis with the green alga Diplosphaera chodatii Bialsuknia as a lichen in the arid regions. RESULTS:454 and Illumina technologies were used to sequence the genome of E. pusillum. A total of 9,285 genes were annotated in the 37.5 Mb genome of E. pusillum. Analyses of the genes provided direct molecular evidence for certain natural characteristics, such as homothallic reproduction and drought-tolerance. Comparative genomics analysis indicated that the expansion and contraction of some protein families in the E. pusillum genome reflect the specific relationship with its photosynthetic partner (D. chodatii). Co-culture experiments using the lichen-forming fungus E. pusillum and its algal partner allowed the functional identification of genes involved in the nitrogen and carbon transfer between both symbionts, and three lectins without signal peptide domains were found to be essential for the symbiotic recognition in the lichen; interestingly, the ratio of the biomass of both lichen-forming fungus and its photosynthetic partner and their contact time were found to be important for the interaction between these two symbionts. CONCLUSIONS:The present study lays a genomic analysis of the lichen-forming fungus E. pusillum for demonstrating its general biological features and the traits of the interaction between this fungus and its photosynthetic partner D. chodatii, and will provide research basis for investigating the nature of its drought resistance and symbiosis.

| S-EPMC3897900 | biostudies-literature

Project description:Pure culture of lichen forming fungus Pseudevernia furfuracea

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Project description:Pure culture of lichen forming fungus Evernia prunastri

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Project description:Draft genome of the lichen-forming fungus Lasallia hispanica

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Modification and functional adaptation of the MBF1 gene family in the lichenized fungus Endocarpon pusillum under environmental stress.

Project description:The multiprotein-bridging factor 1 (MBF1) gene family is well known in archaea, non-lichenized fungi, plants, and animals, and contains stress tolerance-related genes. Here, we identified four unique mbf1 genes in the lichenized fungi Endocarpon spp. A phylogenetic analysis based on protein sequences showed the translated MBF1 proteins of the newly isolated mbf1 genes formed a monophyletic clade different from other lichen-forming fungi and Ascomycota groups in general, which may reflect the evolution of the biological functions of MBF1s. In contrast to the lack of function reported in yeast, we determined that lysine114 in the deduced Endocarpon pusillum MBF1 protein (EpMBF1) had a specific function that was triggered by environmental stress. Further, the Endocarpon-specific C-terminus of EpMBF1 was found to participate in stress tolerance. Epmbf1 was induced by a number of abiotic stresses in E. pusillum and transgenic yeast, and its stress-resistant ability was stronger than that of the yeast mbf1. These findings highlight the evolution and function of EpMBF1 and provide new insights into the co-evolution hypothesis of MBF1 and TATA-box-binding proteins.

| S-EPMC5703946 | biostudies-literature

Functional analysis of thioredoxin from the desert lichen-forming fungus, Endocarpon pusillum Hedwig, reveals its role in stress tolerance.

Project description:Endocarpon pusillum is a lichen-forming fungus with an outstanding stress resistance property closely related to its antioxidant system. In this study, thioredoxin (Trx), one of the main components of antioxidant defense systems in E. pusillum (EpTrx), was characterized and analyzed both in transgenic yeasts and in vitro. Our analyses identified that the heterologous expression of EpTrx in the yeast Pichia pastoris significantly enhanced its resistance to osmotic and oxidative stresses. Assays in vitro showed EpTrx acted as a disulfide reductase as well as a molecular chaperone by assembling into various polymeric structures. Upon exposure to heat-shock stress, EpTrx exhibited weaker disulfide reductase activity but stronger chaperone activity, which coincided with the switching of the protein complexes from low molecular weight forms to high molecular weight complexes. Specifically, we found that Cys31 near but not at the active site was crucial in promoting the structural and functional transitions, most likely by accelerating the formation of intermolecular disulfide bond. Transgenic Saccharomyces cerevisiae harboring the native EpTrx exhibited stronger tolerance to oxidative, osmotic and high temperature stresses than the corresponding yeast strain containing the mutant EpTrx (C31S). Our results provide the first molecular evidence on how Trx influences stress response in lichen-forming fungi.

| S-EPMC4890037 | biostudies-literature

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