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ChemoSense

Elucidating the Mechanisms of Insect’s Chemical Taste to Understand Specific Host-Plant Selection

Total Cost €

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EC-Contrib. €

0

Partnership

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 ChemoSense project word cloud

Explore the words cloud of the ChemoSense project. It provides you a very rough idea of what is the project "ChemoSense" about.

mating    plant    drinks    huge    reject    pave    economically    timber    initiate    reproductive    significantly    mediate    genes    respectively    host    feed    forestry    heterologous    damage    visualisation    little    plants    oviposition    species    salicin    shed    beetle    transcriptome    single    enhances    elucidate    question    gustatory    taste    discriminate    specialist    soluble    electrophysiological    stimulants    beetles    accept    food    sense    tissue    surprising    alternatively    silenced    chemicals    phenolic    encoding    worldwide    consume    feeding    grs    global    knock    light    recordings    vivo    expression    ligand    relatively    sustainable    vitro    herbivorous    sequencing    unknown    glucoside    plantations    certain    stimulant    despite    decide    hypothesised    trees    detected    rna    mechanisms    populi    fish    pest    function    pests    gr    insects    survival    leaf    intake    agricultural    rnai    select    receptors    transcript    elicit    identification    eats    animal    insect    regulators    characterise    poplar    candidate    chrysomela    interact   

Project "ChemoSense" data sheet

The following table provides information about the project.

Coordinator
MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV 

Organization address
address: HOFGARTENSTRASSE 8
city: MUENCHEN
postcode: 80539
website: n.a.

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website http://www.insectherbivory.wordpress.com
 Total cost 171˙460 €
 EC max contribution 171˙460 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-12-01   to  2019-01-28

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV DE (MUENCHEN) coordinator 171˙460.00

Map

 Project objective

The sense of taste enables an animal to decide what it eats and drinks. Insects are able to discriminate among soluble chemicals via their gustatory receptors (GRs) in order to accept or reject a certain food plant or initiate mating and oviposition. Despite their essential role in the insect’s overall food intake, survival and reproductive success, relatively little is known about insect GRs, especially in beetles. This is surprising given their importance as agricultural and forestry pests, their global distribution and huge species number as herbivorous insects. I aim to identify and characterise GRs that mediate host plant selection in a specialist poplar leaf beetle, Chrysomela populi. These beetles feed on economically important poplar trees and damage timber plantations worldwide. It is hypothesised that the phenolic glucoside salicin in poplar is a major taste stimulant for C. populi and enhances feeding activity. However, it is unknown how salicin or, alternatively, other taste stimulants are detected by, and interact with specific GRs in C. populi to elicit feeding behaviour. I will elucidate these mechanisms by (i) identification of candidate genes encoding GRs in C. populi via tissue specific transcriptome sequencing and transcript visualisation via RNA-FISH, (ii) knock-down of single GR genes via RNAi to test the feeding behaviour of RNAi-silenced beetles, and (iii) test whether any of the taste stimulants from poplar function as in vivo and in vitro ligand for specific C. populi GRs by tissue-specific electrophysiological recordings and heterologous expression, respectively. These results will shed new light on the question how GRs function as regulators for herbivorous beetles to select and consume specific plants, which will significantly advance our knowledge in understanding host plant selection. As poplar leaf beetles are important pests, the results may also pave the way for timely development of sustainable pest management in forestry.

 Publications

year authors and title journal last update
List of publications.
2017 Stefan Pentzold, Antje Burse, Wilhelm Boland
Contact chemosensation of phytochemicals by insect herbivores
published pages: 478-483, ISSN: 0265-0568, DOI: 10.1039/C7NP00002B
Nat. Prod. Rep. 34/5 2019-08-30
2017 Stefan Pentzold, Antje Burse, Wilhelm Boland
Contact chemosensation in the poplar leaf beetle, Chrysomela populi – first molecular, chemical and behavioural insights.
published pages: 35-36, ISSN: , DOI:
Entomology Congress 2017 March 2017 2019-08-30
2019 Stefan Pentzold, Frédéric Marion-Poll, Veit Grabe, Antje Burse
Autofluorescence-Based Identification and Functional Validation of Antennal Gustatory Sensilla in a Specialist Leaf Beetle
published pages: 1-9, ISSN: 1664-042X, DOI: 10.3389/fphys.2019.00343
Frontiers in Physiology 10 2019-08-30
2018 Stefan Pentzold, Veit Grabe, Andrei Ogonkov, Lydia Schmidt, Wilhelm Boland, Antje Burse
Silencing cuticular pigmentation genes enables RNA FISH in intact insect appendages
published pages: jeb185710, ISSN: 0022-0949, DOI: 10.1242/jeb.185710
The Journal of Experimental Biology 221/18 2019-08-30

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