期刊
PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY
卷 91, 期 -, 页码 81-87出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pmpp.2015.06.003
关键词
AY-WB phytoplasma; Gene expression; Host adaptation
Phytoplasmas are intracellular insect-transmitted phytopathogenic bacteria with small genomes. To understand how Aster Yellows phytoplasma strain witches' broom (AY-WB) adapts to their hosts, we performed qRT-PCR analysis of 179 in silico functionally annotated AY-WB genes that are likely to have a role in host adaptation. 74 genes were up-regulated in insects and included genes involved in stress response, phospholipid synthesis, malate and pyruvate metabolism, hemolysin and transporter genes, multiple copies of thymidylate kinase, sigma factor and Zn-proteases genes. In plants, 34 genes encoding an immune dominant membrane protein, membrane-associated proteins, and multidrug resistance ABC-type transporters, were up-regulated. Differential regulation of gene expression thus appears to play an important role in host adaptation of phytoplasmas. (C) 2015 Elsevier Ltd. All rights reserved.
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