Results 31 to 40 of about 113,930,362 (191)
Effects of Bacillus subtilis iturin A on HepG2 cells in vitro and vivo
Iturin A with cyclic peptide and fatty acid chain isolated from Bacillus subtilis fermentation shows a variety of biological activities. Among them, the anticancer activity attracted much attention.
Haobin Zhao +7 more
doaj +1 more source
Characterization of iturin synthetase in the wild-typeBacillus subtilisstrain producing iturin and in an iturin deficient mutant [PDF]
The multi-enzyme system responsible for the biosynthesis of iturin, an antifungal lipopeptide of Bacillus subtilis, was partially purified by chromatography on different affigels. In the wild-type strain, two subunits of the iturin synthetase (ITs and ITagp) were characterized: ITs activated only L-Ser, one of the iturin amino acid components, and ...
C, Feignier, F, Besson, G, Michel
openaire +2 more sources
Cloning, Sequencing, and Characterization of the Iturin A Operon [PDF]
ABSTRACT Bacillus subtilis RB14 is a producer of the antifungal lipopeptide iturin A. Using a transposon, we identified and cloned the iturin A synthetase operon of RB14, and the sequence of this operon was also determined.
K, Tsuge, T, Akiyama, M, Shoda
openaire +5 more sources
Organization and characterization of genetic regions in Bacillus subtilis subsp. krictiensis ATCC55079 associated with the biosynthesis of iturin and surfactin compounds. [PDF]
Bacillus subtilis subsp. krictiensis ATCC55079 produces the cyclic lipopeptide antibiotics iturin A-F as well as several surfactins. Here, we analyzed and characterized the biosynthetic genes associated with iturin and surfactin production in this strain.
Young Tae Kim +8 more
doaj +1 more source
Summary Fungal pretreatment is the most common strategy for improving the conversion of rapeseed meal (RSM) into value‐added microbial products. It was demonstrated that Bacillus amyloliquefaciens CX‐20 could directly use RSM as the sole source of all ...
Wenchao Chen +8 more
doaj +1 more source
Representative HPLC chromatograms for analysis of iturin A concentration.
(A) Landy medium. (B) Iturin A at a concentration of 75 μg/mL in methanol. (C) B. subtilis strain 15841 cultured for (C) 3 days or (D) 7 days. Landy medium (E) spiked with 10 μg/mL iturin A and (F) 7 days after being spiked with 10 μg/mL iturin A.
Mark R. Prausnitz (314166) +3 more
core +1 more source
The biosynthesis of antifungal lipopeptides iturin and fengycin has attracted broad interest; however, there is a bottleneck in its low yield in wild strains.
Susheng Wang +7 more
doaj +1 more source
Bacillus subtilis Z-14 can inhibit phytopathogenic fungi, and is used as a biocontrol agent for wheat take-all disease. The present study used the soil-borne fungus Gaeumannomyces graminis var.
Jiawen Xiao +5 more
doaj +1 more source
Isolation and characterization of new iturins : Iturin D and iturin E.
Two new antibiotics, iturin D and iturin E, were isolated from a strain of Bacillus subtilis producing iturin A. These compounds belong to the iturin group, the acid hydrolysates contained alpha-amino acids Asp3, Glu1, Pro1, Ser1, Tyr1, and a mixture of n-C14, iso-C15, anteiso-C15, iso-C16 and n-C16 beta-amino acids.
F, Besson, G, Michel
openaire +3 more sources
Enhanced iturin a production in a two-compartment biofilm reactor by Bacillus velezensis ND
In this study, a two-compartment biofilm reactor was designed for iturin A production. The biofilm reactor consists of a stirred-tank fermentor containing exclusively suspended cells and a packing column where the biofilm is attached.
Zhongmin Tang +4 more
doaj +1 more source

