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Survival ability of cytotoxic strains of motile Aeromonas spp. in different types of water
Author(s) -
Brandi G.,
Sisti M.,
Giardini F.,
Schiavano G. F.,
Albano A.
Publication year - 1999
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1365-2672.1999.00584.x
Subject(s) - aeromonas , aeromonas hydrophila , biology , tap water , microbiology and biotechnology , bacteria , vibrionaceae , mineral water , strain (injury) , saline , seawater , contamination , aeromonas caviae , ecology , environmental engineering , anatomy , history , genetics , archaeology , engineering , endocrinology
The ability of motile Aeromonas spp. to survive in drinking water (mineral and tap water) and in sea water was experimentally tested. Clinically isolated cytotoxic strains of A. hydrophila , A. caviae and A. sobria were selected for this study. After contamination of water samples, the survival of Aeromonas strains was studied for at least three months using viable counts. The results obtained show that the survival of the Aeromonas spp. varies considerably depending on species and water type. For all three species, the survival time was longest in mineral water, where viable bacteria of each strain were still detected after 100 d. Moreover, A. hydrophila and A. caviae also re‐grew on the first day. In tap water all strains showed marked survival, although to a lesser extent than in mineral water. Aeromonas cells showed a rapid decline in sea water (90% reduction in viable cells after about two d) and thus seem to be more sensitive to saline/marine stress than chlorination.