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University of Illinois at Urbana-Champaign
Molecular, Genetic and Physiological Studies on the Regulation of Conjugal Transfer of the Ti Plasmid pTiC58 by Agrobacterium Tumefaciens
Abstract
dc:descriptionConjugation assays determined that the bacteria mate in a cell density dependent manner, known as quorum-sensing. Analysis of transfer frequencies using a transfer-constitutive mutant of pTiC58 showed that quorum sensing requires both the opine induction and autoinduction systems. Analysis of lacZ fusions determined that quorum-sensing results from TraR and AAI activating transfer gene expression only at high cell densities. The bacteria measure their density by sensing the concentration of AAI in the growth medium.
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Microbiology
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 2015
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Piper, Kevin Ray
- Contributors dc:contributor
-
- Farrand, Stephen K.
Subjects
dc:subject × 1Rights
- Language dc:language
- eng
Identifiers
dc:identifier.*- Identifier
- (MiAaPQ)AAI9953112
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/86750