Isolation and characterization of polymeric galloyl-ester-degrading bacteria from a tannery discharge place

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Franco, AR (Author) Other; Calheiros, CSC (Author) Other; Pacheco, CC (Author) Other; De Marco, P (Author) Other; Manaia, CM (Author) Other; Castro, PML (Author) Other

Journal

Title: Microbial Ecology

Vol. 50

Pages: 550-556

ISSN: 0095-3628

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 21 Citations

Scopus - 15 Citations

Other information

Authenticus ID: P-000-0RX

DOI: 10.1007/s00248-005-5020-0

Abstract (EN): The culturable bacteria colonizing the rhizosphere of plants growing in the area of discharge of a tannery effluent were characterized. Relative proportions of aerobic, denitrifying, and sulfate-reducing bacteria were determined in the rhizosphere of Typha latifolia, Canna indica, and Phragmites australis. Aerobic bacteria were observed to be the most abundant group in the rhizosphere, and plant type did not seem to influence the abundance of the bacterial types analyzed. To isolate bacteria able to degrade polyphenols used in the tannery industry, enrichments were conducted under different conditions. Bacterial cultures were enriched with individual polyphenols (tannins Tara, Quebracho, or Mimosa) or with an undefined mixture of tannins present in the tannery effluent as carbon source. Cultures enriched with the effluent or Tara tannin were able to degrade tannic acid. Six bacterial isolates purified from these mixed cultures were able to use tannic acid as a sole carbon source in axenic culture. On the basis of 16S ribosomal DNA sequence analysis, these isolates were closely related to organisms belonging to the taxa Serratia, Stenotrophomonas maltophilia, Klebsiella oxytoca, Herbaspirillum chlorophenolicum, and Pseudomonas putida.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7