Serendipita indica
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA207776 | ENA |
REPOSITORIES: ENA
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Project description:Broad-host root endophytes establish long-term interactions with a large variety of plants, thereby playing a significant role in natural and managed ecosystems and in evolution of land plants. To exploit plants as living substrates and to establish a compatible interaction with morphologically and biochemically extremely different hosts, endophytes must respond and adapt to different plant signals and host metabolic states. Here we identified host-adapted colonization strategies and host-specific effector candidates of the mutualistic root endophyte Piriformospora indica by a global investigation of fungal transcriptional responses to barley and Arabidopsis at different symbiotic stages. Additionally we examined the role played by nitrogen in these two diverse associations. Cytological studies and colonization analyses of a barley mutant and fungal RNAi strains show that distinct physiological and metabolic signals regulate host-specific lifestyle in P. indica. This is the foundation for exploring how distinct fungal and host symbiosis determinants modulate biotrophy in one host and saprotrophy in another host and, ultimately, gives hints into the mechanisms underlying host adaptation in root symbioses. Arabidopsis and barley roots were inoculated with Piriformospora indica and grown for 14 days. Additionally P. indica was grown on 1/10 PNM medium alone. Samples were taken 3 and 14 dpi (Arabidopsis), 14 dpi (barley) and 3dpi (1/10 PNM). Each experiment was performed in three independent biological repetitions. Piriformospora indica gene expression examined only.
2013-07-22 | E-GEOD-47775 | biostudies-arrayexpress
Project description:The root-colonizing fungal endophyte Serendipita indica, formerly known as Piriformospora indica, is well known to promote plant biomass production and stress tolerance of its host plants. Co-cultivation of Arabidopsis thaliana seedlings with the fungus triggers a substantial induction of the growth of the root system. However, the molecular mechanisms by which the fungus promotes plant growth over an extended period of time is still unclear. We here report the comparative analysis of the effect of a mock- and S. indica-infection on wild-type Arabidopsis plants (Col-0) after 2 and 10 days of co-cultivation. Our data provide evidence for the induction of a number of genes that are consistingly induced during the plant–fungus interaction.
2023-09-04 | GSE241902 | GEO
Project description:The root-colonizing fungal endophyte Serendipita indica, formerly known as Piriformospora indica, is well known to promote plant biomass production and stress tolerance of its host plants. Moreover, previous studies highlighted an important impact of the fungus on auxin homeostasis during the infection of Arabidopsis thaliana plants. Auxin is a key determinant of plant growth, including the growth of the root system. Auxin overproducing mutants, like for instance YUC9oe (Hentrich et al., 2013 Plant J.), show a pronounced root phenotype that can be restored by the co-cultivation with S. indica. We here report the comparative analysis of the effect of a mock- and S. indica-infection on both wild-type Arabidopsis plants (Col-0) and YUC9 overexpressing mutants. Our data provide evidence for the induction of GRETCHEN HAGEN 3 (GH3) genes that are involved in conjugating active free indole-3-acetic acid with amino acids. The fungus triggered induction GH3s is suggested to be involved in affecting the cellular auxin homeostasis.
2023-08-30 | GSE240683 | GEO
Project description:Transcriptional profiling of Piriformospora indica colonizing living and dead barley roots
| PRJNA146023 | ENA
Project description:Broad-host root endophytes establish long-term interactions with a large variety of plants, thereby playing a significant role in natural and managed ecosystems and in evolution of land plants. To exploit plants as living substrates and to establish a compatible interaction with morphologically and biochemically extremely different hosts, endophytes must respond and adapt to different plant signals and host metabolic states. Here we identified host-adapted colonization strategies and host-specific effector candidates of the mutualistic root endophyte Piriformospora indica by a global investigation of fungal transcriptional responses to barley and Arabidopsis at different symbiotic stages. Additionally we examined the role played by nitrogen in these two diverse associations. Cytological studies and colonization analyses of a barley mutant and fungal RNAi strains show that distinct physiological and metabolic signals regulate host-specific lifestyle in P. indica. This is the foundation for exploring how distinct fungal and host symbiosis determinants modulate biotrophy in one host and saprotrophy in another host and, ultimately, gives hints into the mechanisms underlying host adaptation in root symbioses.
2013-07-22 | GSE47775 | GEO
Project description:The root-colonizing fungal endophyte Serendipita indica, formerly known as Piriformospora indica, is well known to promote plant biomass production and stress tolerance of its host plants. Previous studies highlighted an important role of calcium Ca2+ signaling in the establishment of the plant–fungus interaction. We here report the comparative analysis of the effect of a mock- and S. indica-infection on both wild-type Arabidopsis plants (Col-3) and cbl7 knockout mutants. Our data provide evidence for the involement of the Ca2+ sensor CBL7 in the control of potassium distribution in the plant and in adjusting plant defense responses to allow the establishment of the plant–fungus symbiosis. The impairment of CBL7 was shown to translate into increased induction of plant defense-related genes.
2023-09-05 | GSE242292 | GEO
Project description:Recent sequencing projects have provided deep insight into fungal lifestyle-associated genomic adaptations. Here we report on the 25 Mb genome of the mutualistic root symbiont Piriformospora indica (Sebacinales, Basidiomycota) and provide a global characterization of fungal transcriptional responses associated with the colonization of living and dead roots. Extensive comparative analysis of the P. indica genome with other Basidiomycota and Ascomycota fungi that have diverse lifestyles strategies identified features typically associated with both, biotrophism and saprotrophism. The tightly controlled expression of the lifestyle-associated gene sets during the onset of the symbiosis, revealed by microarrays analysis, argues for a biphasic root colonization strategy of P. indica. Our finding provides a significant advance in understanding development of biotrophic plant symbionts and suggests a series of incremental shifts along the continuum from saprotrophy towards biotrophy in the evolution of mycorrhizal association from decomposer fungi. P. indica (DSM 11827, DSMZ) was cultivated on complex medium agar plates or liquid medium as described before (Zuccaro et al., 2009). Barley seeds (Hordeum vulgare L. cv. Golden Promise) were surface sterilized with 3 % sodium hypochlorite, rinsed in water and pregerminated for 3 days. To address the experimental design four different treatments were done (P. indica on barley roots on 1/10 PNM medium, P. indica on autoclaved barley roots on 1/10 PNM medium, P. indica on 1/10 PNM medium and P. indica on CM medium), each in three independent biological replications. Root and fungal material was harvested in liquid nitrogen after 24, 36, 48, 72, 120 and 168 hpi. For each time point roots from 15 to 20 living plants or 21 to 36 autoclaved plants were pooled.
2011-09-30 | E-GEOD-31266 | biostudies-arrayexpress
Project description:We sequenced mRNA and small RNA (sRNA) profiles in the interaction between Brachypodium distachyon (Bd) and Serendipita indica (Si; syn. Piriformospora indica), at four (4) days post inoculation (DPI). mRNA sequencing reads of Si-colonized and non-colonized roots, as well as axenic fungal cultures were generated. Three biological samples of each were sequenced, with two technical replicates per sample (PE).
2021-07-15 | E-MTAB-10649 | biostudies-arrayexpress
Project description:The fungal mutualist Piriformospora indica is colonising barley roots thereby mediating various beneficial effects to its host. The interaction is characterised by an initial biotrophic interaction stage which is followed by a cell death-dependent colonisation phase. We used microarrays to identify the global programme of gene expression during the colonisation process of barley roots by P. indica and to obtain informations into plant defense and metabolic reprogramming.
2009-04-29 | GSE13756 | GEO