{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,9]],"date-time":"2025-11-09T17:56:01Z","timestamp":1762710961938},"reference-count":28,"publisher":"American Society for Microbiology","issue":"1","license":[{"start":{"date-parts":[[1976,4,1]],"date-time":"1976-04-01T00:00:00Z","timestamp":197164800000},"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":[[1976,4]]},"abstract":"<jats:p>Homology between the large plasmids of 15 pathogenic Agrobacterium strains isolated from various parts of the world has been measured and was found to vary over a wide range, from 3 to 100%. Two genetically distinct groups of plasmids can be identified: one closely related to the plasmid of A. tumefaciens A6, an octopine-utilizing strain, and the other closely related to the plasmid of A. tumefaciens C-58, a nopaline-utilizing strain. The plasmids of four Agrobacterium strains do not belong to either group. One of these four strains utilizes octopine, one utilizes nopaline, and two utilize neither. Three strains contained two large plasmids. In one of these strains, the two plasmids were not homologous to one another. Chromosomal homologies for the Agrobacterium strains surveyed also vary over a wide range, but do not correlate with plasmid homologies. Neither do plasmid homologies correlate with any numerical classification scheme. The significance of these plasmid homology studies for crown gall tumorigenesis is considered.<\/jats:p>","DOI":"10.1128\/jb.126.1.157-165.1976","type":"journal-article","created":{"date-parts":[[2020,1,3]],"date-time":"2020-01-03T16:02:08Z","timestamp":1578067328000},"page":"157-165","update-policy":"http:\/\/dx.doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":102,"title":["Evidence for diverse types of large plasmids in tumor-inducing strains of Agrobacterium"],"prefix":"10.1128","volume":"126","author":[{"given":"T C","family":"Currier","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E W","family":"Nester","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"235","reference":[{"key":"p_3","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1086\/281878","article-title":"Phage production by crown-gall bacteria and the formation of plant tumors","volume":"89","author":"Beardsley R. 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