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Attachment of Bacillus subtilis to the hyphae of Aspergillus niger results in altered metabolism and defense mechanisms in both partner

ABSTRACT: Transcriptome comparison of Bacillus subtilis NCIB3610 attached to the hyphae of Aspergillus niger CB 119.1 compared to Bacillus subtilis NCIB3610 cells in the supernatant of the same culture. Detailed description (other than provided below) of growth conditions, RNA preparation, cDNA synthesis and hybridization conditions can also be found in the submitted paper.

ORGANISM(S): Bacillus subtilis Bacillus subtilis subsp. subtilis str. 168 Aspergillus niger

PROVIDER: GSE46682 | GEO | 2014/09/09

SECONDARY ACCESSION(S): PRJNA201494

REPOSITORIES: GEO

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Attachment of Bacillus subtilis to the hyphae of Aspergillus niger results in altered metabolism and defense mechanisms in both partner

Project description:Transcriptome comparison of Bacillus subtilis NCIB3610 attached to the hyphae of Aspergillus niger CB 119.1 compared to Bacillus subtilis NCIB3610 cells in the supernatant of the same culture. Detailed description (other than provided below) of growth conditions, RNA preparation, cDNA synthesis and hybridization conditions can also be found in the submitted paper. B subtilis NCIB3610 cells were grown in the presence of Aspergillus niger CB 119.1 hyphae for 3 hours. The mycelium and the attached bacteria were separated from the non-attached B. subtilis cells via filtration through Miracloth. The mycelia and attached bacteria were briefly rinsed with TY medium, dried, and the sample was frozen in liquid nitrogen. Bacterial cells in the flow-through medium fraction were harvested by centrifugation at 10.397 g for 1 min. To extract RNA mainly from the bacterial cells, lysozyme solution and RiboLock (Thermo Scientific) was added followed by incubation at 37 C for 30 minutes. Further RNA extraction was performed with the Macaloid/Roche method as described before (van Hijum et al., 2005, KovÃ¡cs and Kuipers, 2011) but omitting the bead beater treatment and using RiboLock.

2014-09-09 | E-GEOD-46682 | biostudies-arrayexpress

Attachment of Bacillus subtilis to the hyphae of Aspergillus niger results in altered metabolism and defense mechanisms in both partner

Project description:Interaction of microbes affects the growth, metabolism and differentiation of members of the community. While direct and indirect competitions, like spite and nutrient consumption have negative effect on each other, microbes also evolved in nature not only to fight, but in some cases to adapt or support each other while increasing the fitness of the community. Presence of bacteria and fungi in the soil results in interactions and various examples were described, including mutualism. Bacilli attach to the plant root and form complex communities in the rhizosphere. Bacillus subtilis, when grown in the presence of Aspergillus niger interacts with the fungal partner, attaches and grows on the hyphae. Using dual transcriptome experiment, we show that both fungi and bacteria alter their metabolisms during the interaction. Interestingly, the transcription of genes related to the antifungal and antibacterial defense mechanism of B. subtilis and A. niger, respectively, are decreased upon attachment of bacteria to the mycelia. Our microarray experiments provide a novel insight into the mutual interaction of a bacterium and a fungus. Aspergillus niger were grown with and without Bacillus subtilis. Biological triplicates were made for both conditions, Affymetrix microarray experiments were performed on these samples.

2014-10-07 | E-GEOD-46187 | biostudies-arrayexpress

Attachment of Bacillus subtilis to the hyphae of Aspergillus niger results in altered metabolism and defense mechanisms in both partner

2014-10-07 | GSE46187 | GEO

Attachment of Bacillus subtilis to the hyphae of Aspergillus niger results in altered metabolism and defense mechanisms in both partner

Project description:Attachment of Bacillus subtilis to the hyphae of Aspergillus niger results in altered metabolism and defense mechanisms in both partner

| PRJNA201494 | ENA

Single tip transcriptomics of neighboring hyphae of Aspergillus niger

Project description:Mycelia of filamentous fungi explore new substrates by means of hyphae that extend from the periphery of the colony. Previously, it has been shown by immuno-labelling, reporter studies and in situ hybridization that these exploring hyphae are heterogenic with respect to protein secretion and transcription. We performed single hyphal tip RNA profiling using microarrays to assess the differences in RNA accumulation in neighboring exploring hyphae

2011-05-17 | GSE25497 | GEO

Single tip transcriptomics of neighboring hyphae of Aspergillus niger

2011-05-17 | E-GEOD-25497 | biostudies-arrayexpress

Comparative proteomic analysis of Bacillus subtilis and Aspergillus niger in Black Soldier Fly co-fermentation

Project description:the original data of black soldier fly larva mass fermentation with Bacillus subtilis and Aspergillus niger, analyzed by Chinese biotechnology company, published by Chinese Academy of Tropical Agricultural Sciences Environment and Plant Protection Institute for research only.

2023-10-25 | PXD037713 | JPOST Repository

Bacillus subtilis subsp. niger

Project description:Bacillus subtilis subsp. niger

| PRJNA668234 | ENA

Aspergillus niger

Project description:Attachment of Bacillus subtilis to the hyphae of Aspergillus niger results in altered metabolism and defense mechanisms in both partner

| PRJNA197528 | ENA

Expression data from Aspergillus niger comparing aerial structures with vegetative mycelium

Project description:A. niger undergoes dramatic changes during asexual development. We tried to identify the differences in RNA expression levels that are important for this development. We used micro-arrays to determine which genes were up- or down-regulated in the aerial structures, the part of the colony that is formed during asexual development. A. niger was grown as a sandwiched culture (Wösten et al., 1991,Journal of General Microbiology 137: 2017–2023) in a 0.25 mm layer of 0.6 % agarose between two porous polycarbonate membranes (diameter 76 mm, pore size 0.1 µm; Profiltra; www.profiltra.nl). After six days of growth, the top membrane of the sandwich was replaced by a membrane with pores of 10 µm (Profiltra), allowing formation of aerial hyphae and conidiophores for 24 h. Vegetative mycelium and aerial structures of 7-day-old maltose-grown cultures of A. niger were harvested from 3 and 5 sandwiched colonies, respectively. The aerial structures were scraped from the top membrane of the sandwiched culture with a razor blade. From other colonies, vegetative mycelium was harvested by flipping over the top membrane and scraping it off with a razor blade.

2012-02-24 | E-GEOD-32123 | biostudies-arrayexpress

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