Project description:We reported transcriptome profiles of rifamycin SV-produced strain Amycolatopsis mediterranei U32 in the Bennet medium with or without 80 mM nitrate in different cultivation stage. By comparative analysis of genome-wide gene expression in these conditions, we found that the mechanism of high production of rifamycin SV induced by nitrate could be elucidated.

2015-07-01 | GSE63313 | GEO

Evaluation of herbicidal potential of Siderophores produced by Amycolatopsis lurida strain 407.

Project description:The urgent need for sustainable agriculture has intensified the search for environmentally friendly alternatives to chemical herbicides. This study investigates the herbicidal potential of siderophores produced by Amycolatopsis lurida strain 407, focusing on its effects on the growth of ryegrass and redroot weeds. Strain 407 exhibited two distinct colony morphologies-red and white-when cultured under varying environmental conditions. The cell-free culture filtrate (CFCF) from both colony types significantly inhibited the growth of ryegrass and redroot. The concentration of siderophore produced in the iron-deficient medium was measured to be 613.4 ppm for 407 red and 388.5 ppm for 407 white, which indicates significant iron chelating activity. This study also showed a direct relationship between the presence of siderophore in plant culture medium and reduced growth. Also, analysis of fractions of the aqueous phase resulting from column chromatography revealed that all fractions from the 407 red reduced ryegrass shoot length by up to 45% and root length by 83-86%, while redroot seedling length decreased by up to 36%. Fractions from 407 white completely inhibited germination or reduced ryegrass root length by up to 94% and redroot seedling length by 52%. Fractions F4 W to F7 W and F2 R to F8 R, which showed iron chelating activity were most effective in reducing plant growth, suggesting that there are metabolites, alone or in company with siderophores, synergistically do herbicidal activity. The innovative application of siderophores as bioherbicide presents a promising environmentally friendly alternative to chemical herbicides.

| S-EPMC11528001 | biostudies-literature

Pseudomonas lurida

Project description:Pseudomonas lurida Genome sequencing

| PRJNA901030 | ENA

Pseudomonas lurida strain:AU10973

Project description:Pseudomonas lurida strain:AU10973 Genome sequencing and assembly

| PRJNA262941 | ENA

Ostrea lurida

Project description:Ostrea lurida PacBio Genome sequencing

| PRJNA393719 | ENA

transcriptome of Amycolatopsis mediterranei U32 in the Bennet medium with or without nitrate

2015-07-01 | E-GEOD-63313 | biostudies-arrayexpress

Proteomic analysis reveals metabolic versatility of Amycolatopsis sp. BX17: a strain native from milpa agroecosystem soil

Project description:Amycolatopsis sp. BX17 is an actinobacterium isolated from milpa soils that antagonizes the phytopathogenic fungus Fusarium graminearum. Metabolites secreted by the actinobacterium cultured in medium without glucose inhibited 100% the mycelial growth of F. graminearum RH1, while in medium supplemented with 20 g/L of glucose inhibition was 65%. With the aim of studying how the metabolism of strain BX17 is modulated by glucose, as the main carbon source, media with 0 and 20 g/L glucose were selected to analyze the intracellular proteins by quantitative label-free proteomic analysis.

2022-02-14 | PXD028644 | Pride

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