Components of rice husk biochar in promoting the growth, sporulation and iturin A production of Bacillus sp. strain IA
-
Shohei Ebe
,
Tatsuya Ohike
Abstract
In a previously study, the Bacillus sp. strain IA was successfully isolated with high sensitivity to rice husk biochar (RHB). Moreover, RHB promoted an antibiotic iturin A production by strain IA. In order to develop the biocontrol agent, we attempted to reveal the functions of the RHB in promoting the production of iturin A by strain IA. The promotion effects of growth, sporulation and iturin A production of strain IA by the RHB were explained as follows. First, the manganese ion, released from RHB, promoted the sporulation and iturin A production of strain IA. Second, the silicon dioxide contained in RHB adsorbed the metabolic inhibitor(s) and promoted the iturin A production of strain IA. Finally, the combination of manganese ion and silicon dioxide promoted the growth, sporulation and iturin A production of the Bacillus sp. strain IA. To culture strain IA in the medium combining manganese ion and silicon dioxide, the total cells, spore cells and iturin A production increased 15 times, 10,000 times and 18 times higher than the control medium, respectively.
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©2019 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Research Articles
- Ishige sinicola extract stimulates osteoblast proliferation and differentiation via the bone morphogenetic protein 2/runt-related gene 2 signalling pathway
- Rubescins F–H, new vilasinin-type limonoids from the leaves of Trichilia rubescens (Meliaceae)
- Impact of water-soluble zwitterionic Zn(II) phthalocyanines against pathogenic bacteria
- Influence of amide versus ester linkages on the anticancer properties of the new flavone–biotin conjugates
- Metabolomic discrimination of the edible mushrooms Kuehneromyces mutabilis and Hypholoma capnoides (Strophariaceae, Agaricales) by NMR spectroscopy
- Components of rice husk biochar in promoting the growth, sporulation and iturin A production of Bacillus sp. strain IA
Articles in the same Issue
- Frontmatter
- Research Articles
- Ishige sinicola extract stimulates osteoblast proliferation and differentiation via the bone morphogenetic protein 2/runt-related gene 2 signalling pathway
- Rubescins F–H, new vilasinin-type limonoids from the leaves of Trichilia rubescens (Meliaceae)
- Impact of water-soluble zwitterionic Zn(II) phthalocyanines against pathogenic bacteria
- Influence of amide versus ester linkages on the anticancer properties of the new flavone–biotin conjugates
- Metabolomic discrimination of the edible mushrooms Kuehneromyces mutabilis and Hypholoma capnoides (Strophariaceae, Agaricales) by NMR spectroscopy
- Components of rice husk biochar in promoting the growth, sporulation and iturin A production of Bacillus sp. strain IA
