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020 ▼a 9781085670166
035 ▼a (MiAaPQ)AAI13898881
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 247004
0820 ▼a 612
1001 ▼a Schachterle, Jeffrey Kent.
24510 ▼a Roles of Hfq-Dependent sRNAs in E. amylovora Regulation of Virulence.
260 ▼a [S.l.]: ▼b Michigan State University., ▼c 2019.
260 1 ▼a Ann Arbor: ▼b ProQuest Dissertations & Theses, ▼c 2019.
300 ▼a 159 p.
500 ▼a Source: Dissertations Abstracts International, Volume: 81-02, Section: B.
500 ▼a Advisor: Sundin, George W.
5021 ▼a Thesis (Ph.D.)--Michigan State University, 2019.
506 ▼a This item must not be sold to any third party vendors.
520 ▼a Erwinia amylovora is the causative agent of fire blight disease of apple and pear trees, causing annual losses of over 100 million USD in the USA. E. amylovora cells are disseminated to new hosts by insects, wind, and rain, and then invade susceptible tissues and migrate systemically throughout the host, requiring coordinate regulation of several virulence factors, including production of the exopolysaccharides amylovoran and levan, biofilm formation, flagellar motility, and type III secretion. Complex regulatory mechanisms have evolved in E. amylovora that occur at the transcriptional, post-transcriptional, and post-translational levels to control these virulence factors. In my work, I analyze the role of small RNAs (sRNAs) as post-transcriptional regulators of virulence-associated traits in E. amylovora.The Hfq chaperone protein stabilizes sRNAs in the cell, allowing them to interact with and regulate mRNA targets. An hfq mutant differs from wild-type cells in several virulence-associated phenotypes including production of the exopolysaccharides amylovoran and levan, biofilm formation, flagellar motility, and type III secretion. E. amylovora encodes at least 40 Hfq-dependent sRNAs
590 ▼a School code: 0128.
650 4 ▼a Genetics.
650 4 ▼a Plant pathology.
650 4 ▼a Microbiology.
650 4 ▼a Physiology.
690 ▼a 0369
690 ▼a 0480
690 ▼a 0410
690 ▼a 0719
71020 ▼a Michigan State University. ▼b Genetics - Doctor of Philosophy.
7730 ▼t Dissertations Abstracts International ▼g 81-02B.
773 ▼t Dissertation Abstract International
790 ▼a 0128
791 ▼a Ph.D.
792 ▼a 2019
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15491989 ▼n KERIS ▼z 이 자료의 원문은 한국교육학술정보원에서 제공합니다.
980 ▼a 202002 ▼f 2020
990 ▼a ***1008102
991 ▼a E-BOOK