دورية أكاديمية
Enrichment and identification of large filamentous sulfur bacteria related to Beggiatoa species from brackishwater ecosystems of Tamil Nadu along the southeast coast of India.
| العنوان: | Enrichment and identification of large filamentous sulfur bacteria related to Beggiatoa species from brackishwater ecosystems of Tamil Nadu along the southeast coast of India. |
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| المؤلفون: | Saravanakumar C; Aquatic Animal Health and Environment Division, Central Institute of Brackishwater Aquaculture (Indian Council for Agricultural Research), RA Puram, Chennai, India., Dineshkumar N, Alavandi SV, Salman V, Poornima M, Kalaimani N |
| المصدر: | Systematic and applied microbiology [Syst Appl Microbiol] 2012 Sep; Vol. 35 (6), pp. 396-403. Date of Electronic Publication: 2012 Jul 28. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier GmbH Country of Publication: Germany NLM ID: 8306133 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1618-0984 (Electronic) Linking ISSN: 07232020 NLM ISO Abbreviation: Syst Appl Microbiol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: [Munich, Germany] : Elsevier GmbH Original Publication: Stuttgart ; New York : G. Fischer Verlag, c1983- |
| مواضيع طبية MeSH: | Beggiatoa/*classification , Beggiatoa/*isolation & purification , Ponds/*microbiology, Beggiatoa/cytology ; Beggiatoa/genetics ; Denaturing Gradient Gel Electrophoresis ; Ecosystem ; Genes, Bacterial ; Geologic Sediments/microbiology ; India ; Phenotype ; Phylogeny ; Polymerase Chain Reaction ; RNA, Ribosomal, 16S/genetics ; Salinity |
| مستخلص: | Beggiatoa species are filamentous sulfide-oxidizing bacteria belonging to the family Beggiatoaceae that contains several largest bacteria known today. These large sulfur bacteria occur in diverse ecosystems and play an important role in the global sulfur, nitrogen and phosphorus cycle. In this study, sediment samples from brackishwater shrimp culture ponds and other brackishwater ecosystems from Tamil Nadu, southeast coast of India, were enriched for Beggiatoa species. Extracted hay medium supplemented with catalase was used and were incubated for two weeks at 28°C. Out of seven set-ups, four yielded positive growth of filamentous sulfide-oxidizing bacteria. The filaments were several millimeters long, ranged in width between 2 and 15 μm and exhibited typical gliding motility. The 16S rRNA gene of four single filaments representing the four positive enrichments was subjected to PCR-DGGE followed by sequencing. All four filaments were affiliated to the Beggiatoaceae, but showed less than 89% identity with the Beggiatoa type strain Beggiatoa alba and less than 93% identity with any other sequence of the family. One of the four filaments revealed a nearly full-length 16S rDNA sequence (1411bp) and it formed a monophyletic cluster with two of the partial DGGE-16S rRNA gene sequences (99-100% identity) within the Beggiatoa species cluster. These organisms could possibly represent a novel genus within the family Beggiatoaceae. The fourth partial sequence affiliated with less than 93% sequence identity to the genera Parabeggiatoa, Thioploca and Thiopilula, and was likewise strongly delineated from any sequence published in the family. (Copyright © 2012 Elsevier GmbH. All rights reserved.) |
| المشرفين على المادة: | 0 (RNA, Ribosomal, 16S) |
| تواريخ الأحداث: | Date Created: 20120731 Date Completed: 20130221 Latest Revision: 20120827 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.syapm.2012.05.006 |
| PMID: | 22841519 |
| قاعدة البيانات: | MEDLINE |
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Full Text Finder | تدمد: | 1618-0984 |
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| DOI: | 10.1016/j.syapm.2012.05.006 |