{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,29]],"date-time":"2026-03-29T13:45:21Z","timestamp":1774791921763,"version":"3.50.1"},"reference-count":32,"publisher":"American Society for Microbiology","issue":"4","license":[{"start":{"date-parts":[[2010,2,15]],"date-time":"2010-02-15T00:00:00Z","timestamp":1266192000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Bacteriol"],"published-print":{"date-parts":[[2010,2,15]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            <jats:italic>Vibrio cholerae<\/jats:italic>\n            strains of the O1 serogroup that typically cause epidemic cholera can be classified into two biotypes, classical and El Tor. The El Tor biotype emerged in 1961 and subsequently displaced the classical biotype as a cause of cholera throughout the world. In this study we demonstrate that when strains of the El Tor and classical biotypes were cocultured in standard LB medium, the El Tor strains clearly had a competitive growth advantage over the classical biotype starting from the late stationary phase and could eventually take over the population. The classical biotype produces extracellular protease(s) in the stationary phase, and the amounts of amino acids and small peptides in the late stationary and death phase culture filtrates of the classical biotype were higher than those in the corresponding culture filtrates of the El Tor biotype. The El Tor biotype cells could utilize the amino acids more efficiently than the classical biotype under the alkaline pH of the stationary phase cultures but not in medium buffered to neutral pH. The growth advantage of the El Tor biotype was also observed\n            <jats:italic>in vivo<\/jats:italic>\n            using the ligated rabbit ileal loop and infant mouse animal models.\n          <\/jats:p>","DOI":"10.1128\/jb.01180-09","type":"journal-article","created":{"date-parts":[[2009,12,19]],"date-time":"2009-12-19T02:41:52Z","timestamp":1261190512000},"page":"955-963","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":24,"title":["The El Tor Biotype of\n            <i>Vibrio cholerae<\/i>\n            Exhibits a Growth Advantage in the Stationary Phase in Mixed Cultures with the Classical Biotype"],"prefix":"10.1128","volume":"192","author":[{"given":"Subhra","family":"Pradhan","sequence":"first","affiliation":[{"name":"Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, Kolkata 700 032, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amit K.","family":"Baidya","sequence":"additional","affiliation":[{"name":"Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, Kolkata 700 032, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amalendu","family":"Ghosh","sequence":"additional","affiliation":[{"name":"Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, Kolkata 700 032, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kalidas","family":"Paul","sequence":"additional","affiliation":[{"name":"Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, Kolkata 700 032, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rukhsana","family":"Chowdhury","sequence":"additional","affiliation":[{"name":"Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Council of Scientific and Industrial Research, Kolkata 700 032, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.00409-09"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1128\/jcm.13.1.126-129.1981"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.01750-05"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1128\/jb.174.19.6221-6229.1992"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1128\/iai.62.4.1504-1506.1994"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1128\/jvi.63.1.392-397.1989"},{"key":"e_1_3_2_8_2","first-page":"559","volume":"46","year":"1953","unstructured":"De, S. 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