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Boty-II, a novel LTR retrotransposon in Botrytis cinerea B05.10 revealed by genomic sequence Electron. J. Biotechnol.
Zhao,Ming; Zhou,Jin yan; Li,Zhi dong; Song,Wei wei; Tan,You jiu; Tan,Hong.
Botrytis cinerea is a necrotrophic pathogen causing pre- and post-harvest diseases in at least 235 plant species. It manifests extraordinary genotype and phenotype variation. One of the causes of this variation is transposable elements. Two transposable elements have been discovered in this fungus, the retrotransposon (Boty), and the transposon (Flipper). In this work, two complete (Boty-II-76 and Boty-II-103) and two partial (Boty-II-95 and Boty-II-141) long terminal repeat (LTR) retrotransposons were identified by an in silico genomic sequence analysis. Boty-II-76 and Boty-II-103 contain 6439 bp nucleotides with a pair of LTRs at both ends, and an internal deduced pol gene encoding a polyprotein with reverse transcriptase and DDE integrase domains. They...
Tipo: Journal article Palavras-chave: Botrytis cinerea; LTR retrotransposons; Molecular marker; Plant pathogen; Population diversity; Transposable elements.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000300002
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Optimization of Bacillus subtilis cell growth effecting jiean-peptide production in fed batch fermentation using central composite design Electron. J. Biotechnol.
Zhong,Juan; Zhang,Xiaoyong; Ren,Yanli; Yang,Jie; Tan,Hong; Zhou,Jinyan.
Background Optimization of nutrient feeding was developed to improve the growth of Bacillus subtilis in fed batch fermentation to increase the production of jiean-peptide (JAA). A central composite design (CCD) was used to obtain a model describing the relationship between glucose, total nitrogen, and the maximum cell dry weight in the culture broth with fed batch fermentation in a 5 L fermentor. Results The results were analyzed using response surface methodology (RSM), and the optimized values of glucose and total nitrogen concentration were 30.70 g/L and 1.68 g/L in the culture, respectively. The highest cell dry weight was improved to 77.50 g/L in fed batch fermentation, which is 280% higher than the batch fermentation concentration (20.37 g/L). This...
Tipo: Journal article Palavras-chave: Bacillus subtilis ZK8; Iturin A; Response surface methodology.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000300005
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Response surface methodology used for statistical optimization of jiean-peptide production by Bacillus subtilis cells adsorbed on wood chips Electron. J. Biotechnol.
Zhang,Xiaoyong; Zhou,Jinyan; Fu,Wen; Li,Zhidong; Zhong,Juan; Yang,Jie; Xiao,Liang; Tan,Hong.
Response surface methodology (RSM) was used for statistical optimization of jiean-peptide (JAA) production by Bacillus subtilis ZK8 cells adsorbed on wood chips to form a novel fermentation system. The Plackett-Burman design was used in the first step to evaluate the effects of eight factors, including six fermentation medium components and two cell adsorption conditions. Among the variables screened, soybean meal hydrolysate (SMH) and MgSO4·7H2O in the fermentation medium had significanteffects on JAA production. In the second step, the concentrations of SMH and MgSO4·7H2O were further optimized using central composite designs and response surface analysis. The optimized concentration of SMH and MgSO4·7H2O was 24% (v/v) and 0.38% (w/v), respectively,...
Tipo: Journal article Palavras-chave: Bacillus subtilis ZK8; Cell adsorption; Jiean- peptide; Response surface methodology; Wood chips.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400006
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Two LTR retrotransposon elements within the abscisic acid gene cluster in Botrytis cinerea B05.10, but not in SAS56 Electron. J. Biotechnol.
Zhao,Ming; Zhou,Jin yan; Tan,You jiu; Song,Wei wei; Li,Zhi dong; Tan,Hong.
The plant hormone abscisic acid has huge economic potential and can be applied in agriculture and forestry for it is considered to be involved in plant resistance to stresses such as cold, heat, salinity, drought, pathogens and wounding. Now overproducing strains of Botrytis cinerea are used for biotechnological production of abscisic acid. An LTR retrotransposon, Boty-aba, and a solo LTR were identified by in silico genomic sequence analysis, and both were detected within the abscisic acid gene cluster in B. cinerea B05.10, but not in B. cinerea SAS56. Boty-aba contains a pair of LTRs and two internal genes. The LTRs and the first gene have features characteristic of Ty3/gypsy LTR retrotransposons. The second gene is a novel gene, named brtn, which...
Tipo: Journal article Palavras-chave: Botrytis cinerea; Genomic sequence analysis; In silico; LTR retrotransposon.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000100007
Registros recuperados: 4
Primeira ... 1 ... Última
 

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