Abstract：
:As a part of our ongoing efforts towards finding novel antimycotic agents from marine microflora of the Red Sea, vanillin, 5,7-dimethoxy-4-p-methoxylphenylcoumarin and the new antimycotic compound saadamycin were isolated from endophytic Streptomyces sp. Hedaya48. The producing strain was isolated from the Egyptian sponge Aplysina fistularis and subjected to different UV irradiation doses. A mutant strain Ah22 with 10.5-fold (420 mg/l as compared to 40 mg/l produced by the parental strain) improved saadamycin production was isolated. Production of saadamycin from mutant Ah22 was enhanced to 2.26-fold (950 mg/l) and 2.38-fold (1000 mg/l) under optimized culture conditions in batch culture and bioreactors, respectively. Both saadamycin and 5,7-dimethoxy-4-p-methoxylphenylcoumarin exhibited significant antimycotic activity against dermatophytes and other clinical fungi.
journal_name
J Ind Microbiol Biotechnoljournal_title
Journal of industrial microbiology & biotechnologyauthors
El-Gendy MM,El-Bondkly AMdoi
10.1007/s10295-010-0729-2subject
Has Abstractpub_date
2010-08-01 00:00:00pages
831-41issue
8eissn
1367-5435issn
1476-5535journal_volume
37pub_type
杂志文章abstract：:Physiological studies and biotechnology applications of Geobacter species have been limited by a lack of genetic tools. Therefore, potential additional molecular strategies for controlling metabolism were explored. When the gene for citrate synthase, or acetyl-CoA transferase, was placed under the control of a LacI/IP...
journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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更新日期：2008-03-01 00:00:00
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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更新日期：2014-11-01 00:00:00
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-013-1288-0
更新日期：2013-08-01 00:00:00
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journal_title：Journal of industrial microbiology & biotechnology
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更新日期：2003-03-01 00:00:00
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journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.7000097
更新日期：2001-03-01 00:00:00
abstract：:Bacterial toxin-antitoxin (TA) systems play important roles in diverse cellular regulatory processes. Here, we characterize three putative type II TA candidates from Acetobacter pasteurianus and investigate the profile of type II TA systems in the genus Acetobacter. Based on the gene structure and activity detection, ...
journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-011-0954-3
更新日期：2011-10-01 00:00:00
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journal_title：Journal of industrial microbiology & biotechnology
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doi：10.1038/sj/jim/7000223
更新日期：2002-03-01 00:00:00
abstract：:Polyhydroxyalkanoates (PHAs) are naturally occurring biodegradable polymers with promising application in the formulation of plastic materials. PHAs are produced by numerous bacteria as energy/carbon storage materials from various substrates, including sugars and plant oils. Since these substrates compete as food sour...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-010-0732-7
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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journal_title：Journal of industrial microbiology & biotechnology
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更新日期：2017-06-01 00:00:00
abstract：:Whole cultures of Nocardia sp. NRRL 5646 reduce carboxylic acids, first to aldehydes, then to alcohols and subsequently to the corresponding acetyl esters. This work describes an NADPH-dependent reductase responsible for catalyzing the reduction of aldehyde intermediates, which was purified 3240-fold by a combination ...
journal_title：Journal of industrial microbiology & biotechnology
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doi：10.1038/sj.jim.7000096
更新日期：2000-12-01 00:00:00
abstract：:Recombinant Escherichia coli have been constructed for the conversion of glucose as well as pentose sugars into L-lactic acid. The strains carry the lactate dehydrogenase gene from Streptococcus bovis on a low copy number plasmid for production of L-lactate. Three E. coli strains were transformed with the plasmid for ...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1038/sj.jim.7000195
更新日期：2001-10-01 00:00:00
abstract：:Acetoin, a major extracellular catabolic product of Bacillus subtilis cultured on glucose, is widely used to add flavor to food and also serves as a precursor for chemical synthesis. The biosynthesis of acetoin from pyruvate requires the enzymes α-acetolactate synthase (ALS) and α-acetolactate decarboxylase (ALDC), bo...
journal_title：Journal of industrial microbiology & biotechnology
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更新日期：2013-09-01 00:00:00
abstract：:In this study we investigated the sensitivity of Deinococcus radiodurans to contact-free cold atmospheric plasma treatment as part of a project to establish new efficient procedures for disinfection of inanimate surfaces. The Gram-positive D. radiodurans is one of the most resistant microorganisms worldwide. Stationar...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s10295-012-1137-6
更新日期：2012-09-01 00:00:00
abstract：:Rapamycin is an immunosuppressive metabolite produced from several actinomycete species. Besides its immunosuppressive activity, rapamycin and its analogs have additional therapeutic potentials, including antifungal, antitumor, neuroprotective/neuroregenerative, and lifespan extension activities. The core structure of...
journal_title：Journal of industrial microbiology & biotechnology
pub_type： 杂志文章,评审
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