Recovery and diversity of heterotrophic bacteria from chlorinated drinking waters
نویسندگان
چکیده
منابع مشابه
Acidophilic, heterotrophic bacteria of acidic mine waters.
Obligately acidophilic, heterotrophic bacteria were isolated both from enrichment cultures developed with acidic mine water and from natural mine drainage. The bacteria were grouped by the ability to utilize a number of organic acids as sole carbon sources. None of the strains were capable of chemolithotrophic growth on inorganic reduced iron and sulfur compounds. All bacteria were rod shaped, ...
متن کاملCharacterization of dysgonic, heterotrophic bacteria from drinking water.
Only a small percentage of the heterotrophic bacteria encountered in water distribution systems are identifiable, because of these organisms fail to grow on the conventional media used for biochemical characterization. Organisms that would not subculture from the same standard plate count agar used for initial isolation were successfully subcultured on a low-nutrient medium, R3A. These cultures...
متن کاملHeterotrophic plate counts and the isolation of bacteria from mineral waters on selective and enrichment media.
The heterotrophic plate counts of 15 brands of bottled non-carbonated mineral waters were examined and found to be generally high and variable. Four selective or enrichment media for the enumeration of coliforms (m-Endo LES and m-lauryl sulphate agar) and Pseudomonas aeruginosa (cetrimide-nalidixic acid agar and malachite green broth) were used to isolate several species of Gram-negative bacter...
متن کاملProduction of heterotrophic bacteria inhabiting macroscopic organic aggregates (marine snow) from surface waters’
Macroscopic detrital aggregates, known as marine snow, are a ubiquitous and abundant component of the marine pelagic zone. Descriptions of microbial communities occurring at densities 2-5 orders of magnitude higher on these particles than in the surrounding seawater have led to the suggestion that marine snow may be a site of intense heterotrophic activity. We tested this hypothesis using incor...
متن کاملDiversity of retrievable heterotrophic bacteria in Kongsfjorden, an Arctic fjord
The diversity and abundance of retrievable pelagic heterotrophic bacteria in Kongsfjorden, an Arctic fjord, was studied during the summer of 2011 (June, August, and September). Retrievable bacterial load ranged from 103 to 107CFUL-1 in June, while it was 104-106CFUL-1 in August and September. Based on 16S rRNA gene sequence similarities, a higher number of phylotypes was observed during August ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1986
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.51.5.1047-1055.1986