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1.
Interdiscip Sci ; 7(3): 242-8, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26199209

RESUMO

16S rDNA sequencing which has gained wide popularity amongst microbiologists for the molecular characterization and identification of newly discovered isolates provides accurate identification of isolates down to the level of sub-species (strain). Its most important advantage over the traditional biochemical characterization methods is that it can provide an accurate identification of strains with atypical phenotypic characters as well. The following work is an application of 16S rRNA gene sequencing approach to identify a novel species of Probiotic Lactobacillus acidophilus. The sample was collected from pond water samples of rural and urban areas of Krishna district, Vijayawada, Andhra Pradesh, India. Subsequently, the sample was serially diluted and the aliquots were incubated for a suitable time period following which the suspected colony was subjected to 16S rDNA sequencing. The sequence aligned against other species was concluded to be a novel, Probiotic L. acidophilus bacteria, further which were named L. acidophilus strain EMBS081 & EMBS082. After the sequence characterization, the isolate was deposited in GenBank Database, maintained by the National Centre for Biotechnology Information NCBI. The sequence can also be retrieve from EMBL and DDBJ repositories with accession numbers JX255677 and KC150145.


Assuntos
Lactobacillus acidophilus/genética , Lactobacillus acidophilus/isolamento & purificação , Probióticos/metabolismo , RNA Ribossômico 16S/genética , Análise de Sequência de DNA/métodos , DNA Bacteriano/genética , DNA Bacteriano/isolamento & purificação , Filogenia , Reação em Cadeia da Polimerase
2.
Interdiscip Sci ; 2014 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-25239515

RESUMO

16S rDNA sequencing which has gained wide popularity amongst microbiologists for the molecular characterization and identification of newly discovered isolates provides accurate identification of isolates down to the level of sub-species (strain). It's most important advantage over the traditional biochemical characterization methods are that it can provide an accurate identification of strains with atypical phenotypic characters as well. The following work is an application of 16S rRNA gene sequencing approach to identify a novel species of Probiotic Lactobacillus acidophilus. The sample was collected from pond water samples of rural and urban areas of Krishna District, Vijayawada, Andhra Pradesh, India. Subsequently the sample was serially diluted and the aliquots were incubated for a suitable time period following which the suspected colony was subjected to 16S rDNA sequencing. The sequence aligned against other species were concluded to be a novel, Probiotic Lactobacillus acidophilus bacteria, further which were named Lactobacillus acidophilus strain EMBS081 & EMBS082. After the sequence characterization, the isolate was deposited in GenBank Database, maintained by the National Centre for Biotechnology Information NCBI. The sequence can also be retrieve from EMBL and DDBJ repositories with accession numbers JX255677 and KC150145.

3.
Interdiscip Sci ; 6(4): 271-8, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25118655

RESUMO

Probiotic microorganisms are those which exert a positive exect on the growth of the host, when administered as a dietary mixture in an adequate amount. They form the best alternative to the use of antibiotics for controlling enteric diseases in poultry farm animals, especially in the light of the gruesome problems of development of antibiotic resistance in enteric pathogens and the contamination of poultry products with antibiotics. 16S rDNA sequencing which has gained wide popularity amongst microbiologists for the molecular characterization and identification of newly discovered isolates provides accurate identification of isolates down to the level of sub-species (strain). It's most important advantage over the traditional biochemical characterization methods are that it can provide an accurate identification of strains with atypical phenotypic characters as well. The following work is an application of 16S rRNA gene sequencing approach to identify a novel, alkaline protease producing bacteria, from poultry farm waste. The sample was collected from a local poultry farm in the Guntur district, Andhra Pradesh, India. Subsequently the sample was serially diluted and the aliquots were incubated for a suitable time period following which the suspected colony was subjected to 16S rDNA sequencing. The results showed the isolate to be a novel, high alkaline protease producing bacteria, which was named Bacillus firmus isolate EMBS023, after characterization the sequence of isolate was deposited in GenBank with accession number JN990980.


Assuntos
Bacillus/isolamento & purificação , Proteínas de Bactérias/genética , DNA Bacteriano/análise , DNA Ribossômico/análise , Endopeptidases/genética , Filogenia , Probióticos/isolamento & purificação , RNA Ribossômico 16S/genética , Animais , Antibiose , Bacillus/enzimologia , Bacillus/genética , Genes de RNAr , Humanos , Índia , Dados de Sequência Molecular , Aves Domésticas , Doenças das Aves Domésticas/tratamento farmacológico , Doenças das Aves Domésticas/microbiologia , Probióticos/uso terapêutico , Análise de Sequência de DNA , Especificidade da Espécie
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