Journal of Basic Microbiology
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Optimization, characterization, and flow properties of exopolysaccharides produced by the cyanobacterium Lyngbya stagnina.
The exopolysaccharides produced by the cyanobacterium Lyngbya stagnina have been characterized. Maximum amounts of EPS (142.4 µg EPS ml(-1) culture) were obtained during the stationary phase of growth and rate of EPS production was maximum during late phase of growth. When medium was supplemented wi...
Isolation, identification, and activity in vitro of killer yeasts against Colletotrichum gloeosporioides isolated from tropical fruits.
These results indicate the potential use of antagonist yeasts isolated from tropical fruits in the control of anthracnose caused by C. gloeosporioides in papaya. Further elucidation of main mechanisms involved on anthracnose control by these yeasts could be helpful for the development of biocontrol...
A MAP kinase gene, Clk1, is required for conidiation and pathogenicity in the phytopathogenic fungus Curvularia lunata.
Mitogen-activated protein kinase (MAPK) cascades are highly conserved signal transduction pathways, which play a wide variety of important roles in extracellular signal transduction. The first MAPK gene of the maize pathogen Curvularia lunata, Clk1, was isolated via a PCR-based approach with a prime...
Characterization of an antifungal compound produced by Bacillus sp. strain A(5) F that inhibits Sclerotinia sclerotiorum.
A potential antagonist, Bacillus sp. strain A(5) F was isolated from soybean rhizosphere following in vitro dual plate screening. The bacterium displayed strong inhibitory activity in vitro against soybean stem rot pathogen, Sclerotinia sclerotiorum. The culture supernatant of strain A(5) F complete...
Detection of OXA-type carbapenemases and integrons among carbapenem-resistant Acinetobactor baumannii in a teaching hospital in China.
The increasing trend of carbapenem-resistance (CR) and multi-drug resistance (MDR) in A. baumannii worldwide has limited the therapeutic effectiveness of antibiotic therapy. The study was conducted to determine the prevalence of carbapenemases and integrons among the isolates of imip...
Contents: j. Basic microbiol. 4/2011.
Establishment of a Caenorhabditis elegans infection model for Vibrio alginolyticus.
Vibrio alginolyticus, a common bacterium in the marine environment, is a threat to marine animals and humans by causing serious infections. The present study reveals the establishment of a Caenorhabditis elegans infection model for Vibrio alginolyticus. The infection and colonization...
The paf gene product modulates asexual development in Penicillium chrysogenum.
We provide evidence for an additional function of PAF which is distinct from the antifungal activity against putative ecologically concurrent microorganisms. Our data indicate that PAF enhances conidiation in P. chrysogenum by modulating the expression of brlA, the central regulatory gene for mitosp...
Expression and characterization of a second L-amino acid deaminase isolated from Proteus mirabilis in Escherichia coli.
We cloned, expressed, and characterized a second amino acid deaminase, termed Pm1, from P. mirabilis KCTC 2566. Homology alignment of the deduced amino acid sequence of Pm1 demonstrated that the greatest similarity (96%) was with the L-amino acid deaminase (LAD) of P. vulgaris, and that homology wit...
Mycelium-bound lipase production from Aspergillus niger MYA 135, and its potential applications for the transesterification of ethanol.
The potential biotecnological applications of both constitutive and inducible lipase sources from Aspergillus niger MYA 135 were evaluated. To this end, the effect of environmental conditions on mycelium-bound lipase production from this strain was studied, when cultured either in th...