Opendata, web and dolomites


Unravelling the mechanisms behind bacterial symbiosis in insects

Total Cost €


EC-Contrib. €






 SymMech project word cloud

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

predator    plants    symbioisis    possibility    elucidation    microbiological    molecular    symbiont    mechanisms    lethality    amongst    strains    sk    responsible    nutrient    offspring    screens    impeding    reduce    infects    strategy    utilize    diseases    specialised    chemical    performing    symbiotic    strategies    additionally    microorganisms    identification    bacterial    solid    little    mediated    interference    first    life    niches    diminish    arthropods    classic    eliminate    nasonia    modify    enormous    culturable    competence    manipulation    symbiosis    borne    acquisition    lifestyle    alteration    biological    bacterium    hypothesis    son    endosymbionts    genes    reproductive    distributed    time    dependent    biology    phenotype    grown    elucidate    raised    vitripennis    thriving    knockout    tools    permit    symbionts    pathogen    few    inducing    arsenophonus    killing    tradis    combined    hosts    gene    parasitoid    independent    function    male    wasp    ground    engineer    humans    insect    host    desired    protection    nasoniae    invertebrates    competing    transmission    vector    outside    pests   

Project "SymMech" data sheet

The following table provides information about the project.


Organization address
postcode: L69 7ZX

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 United Kingdom [UK]
 Project website
 Total cost 183˙454 €
 EC max contribution 183˙454 € (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 2017
 Duration (year-month-day) from 2017-01-01   to  2018-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE UNIVERSITY OF LIVERPOOL UK (LIVERPOOL) coordinator 183˙454.00


 Project objective

Bacterial endosymbionts are widely distributed amongst invertebrates and have an enormous impact upon the biology of their hosts, being responsible for nutrient acquisition, predator protection and interference with the host reproductive strategies. Their ability to reduce vector competence has raised the possibility of using endosymbionts as a strategy to eliminate or diminish vector-borne pathogen transmission to humans and plants. A crucial step in manipulation of symbionts is the elucidation of the genes involved in symbiosis. Symbionts are highly adapted to hosts, thriving in highly specialised niches with little interference from competing microorganisms. The genes that permit this lifestyle are not known in any case, because most symbionts cannot be grown outside their host, thus impeding classic microbiological loss of function screens to elucidate the molecular mechanisms responsible for symbioisis. In this project, I will utilize Arsenophonus nasoniae, one of the few culturable symbionts, to establish for the first time the genes and systems required for symbiotic life. This bacterium infects the parasitoid wasp Nasonia vitripennis inducing lethality in the male offspring (son-killing = sk). The major objective of this project is to elucidate by the first time genes that are essential for the symbiosis between a bacterium and an insect using hypothesis-independent TraDis approach combined with hypothesis-dependent gene knockout approaches. Identification of the genes involved in symbiosis may allow us to modify the host range of symbionts or engineer strains that produce the desired phenotype. Additionally, this project will provide solid ground for the identification of genes involved in reproductive manipulation of arthropods allowing performing symbiont-mediated alteration of host biology. Both objectives are crucial for the development of novel biological and chemical tools against major vector-borne diseases and pests.


year authors and title journal last update
List of publications.
2019 Pol Nadal‐Jimenez, Joanne S. Griffin, Lianne Davies, Crystal L. Frost, Marco Marcello, Gregory D. D. Hurst
Genetic manipulation allows in vivo tracking of the life cycle of the son‐killer symbiont, Arsenophonus nasoniae , and reveals patterns of host invasion, tropism and pathology
published pages: , ISSN: 1462-2912, DOI: 10.1111/1462-2920.14724
Environmental Microbiology 2019-09-02

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