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Toxoptera citricida (Kirkaldy) (Hemiptera: Aphidae) and their interactions with secondary symbionts

Grant number: 14/12067-5
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): August 10, 2014
Effective date (End): February 06, 2015
Field of knowledge:Agronomical Sciences - Agronomy - Plant Health
Principal Investigator:Fernando Luis Cônsoli
Grantee:Aline Sartori Guidolin
Supervisor: Frederic Francis
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Research place: Université de Liège (ULg), Belgium  
Associated to the scholarship:12/04287-0 - Toxoptera citricida (Kirkaldy) (Hemiptera: Aphidae): associated simbionts and interactions with secondary symbionts, BP.DR


Bacterial symbionts are broadly distributed among insects, which may have their biology and ecology affected by interactions with symbionts. Buchnera aphidicola is a primary aphid symbiont that impacts host metabolism by providing essential amino acids that are not produced by the host nor are acquired from the diet. Facultative symbionts are also expected to modify host proteins and metabolites as those in aphid saliva that are related to host plant adaptability, or those involved in stress response. However, little is known on changes in host proteome that are induced by facultative symbionts. Spiroplasma is one of such secondary, facultative bacteria reported associated with aphids, but very little is known on the aphid-Spiroplasma association and on the effects of these symbionts on the multitrophic interactions of their hosts. Toxoptera citricida is the major vector of the citrus tristeza virus (CTV), and it was found to harbor Spiroplasmain our initial investigations. Therefore, we propose to analyze the changes Spiroplasma infection may cause on the proteomic profile of T. citricida, aiming to find proteins that may be related with changes in the host biology and host plant utilization, but also those proteins related with the potential of this insect to vector plant virus. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GUIDOLIN, ALINE SARTORI; CATALDI, THAIS REGIANI; LABATE, CARLOS ALBERTO; FRANCIS, FREDERIC; CONSOLI, FERNANDO LUIS. Spiroplasma affects host aphid proteomics feeding on two nutritional resources. SCIENTIFIC REPORTS, v. 8, . (12/04287-0, 14/12067-5, 11/50877-0)

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