期刊
INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY
卷 127, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ibmb.2020.103474
关键词
Phytoplasma; Vector-pathogen-interactions; Small GTPase signalling; Rhythmic processes; Nervous system; Reproduction
资金
- project SCOPAZZI - Autonomous Province of Trento
- Associazione Produttori Ortofrutticoli Trentini
- ISCIII/MINECO - FEDER [PT17/0009/0019]
- BBSRC [BBS/E/J/000PR9797] Funding Source: UKRI
Phytoplasmas are bacterial plant pathogens that are detrimental to many plants and cause devastating effects on crops. They are not viable outside their host plants and depend on specific insect vectors for their transmission. So far, research has largely focused on plant-pathogen interactions, while the complex interactions between phytoplasmas and insect vectors are far less understood. Here, we used next-generation sequencing to investigate how transcriptional profiles of the vector psyllid Cacopsylla melanoneura (Hemiptera, Psyllidae) are altered during infection by the bacterium Candidatus Phytoplasma mali (P. mali), which causes the economically important apple proliferation disease. This first de novo transcriptome assembly of an apple proliferation vector revealed that mainly genes involved in small GTPase mediated signal transduction, nervous system development, adhesion, reproduction, actin-filament based and rhythmic processes are significantly altered upon P. mali infection. Furthermore, the presence of P. mali is accompanied by significant changes in carbohydrate and polyol levels, as revealed by metabolomics analysis. Taken together, our results suggest that infection with P. mali impacts on the insect vector physiology, which in turn likely affects the ability of the vector to transmit phytoplasma.
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