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QSIPP TERMINATED

Exploring bacterial Quorum Sensing Infochemicals and hydrolytic Proteins linked to marine Particle degradation

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 QSIPP project word cloud

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

proteins    ocean    hydrolytic    respiration    particle    assemblages    cells    convert    organic    situ    mitigation    molecular    critical    sinks    deep    qs    rate    poorly    atmospheric    outcome    date    enzymatically    earth    independent    hydrolysis    phytoplankton    intact    molecules    reception    regulating    implications    few    quorum    excretion    microorganisms    force    scenarios    cycled    atmosphere    predict    hydrolyze    colonize    bacteria    biogeochemical    poc    export    particles    mass    carbon    degradation    conversations    dioxide    signaling    communities    mechanisms    sensing    suggested    spectrometry    dimensional    diverse    majority    culture    sequestered    photosynthesis    imaging    removed    amount    environment    elucidate    overlooked    bacterial    surface    waters    ultimately    efficiency    exported    localization    shaping    marine    understand    play    driving    proteomics    infochemicals    climate    particulate    synthesis    co2    active    reservoir    biomass   

Project "QSIPP" data sheet

The following table provides information about the project.

Coordinator
ALFRED-WEGENER-INSTITUT HELMHOLTZ-ZENTRUM FUR POLAR- UND MEERESFORSCHUNG 

Organization address
address: AM HANDELSHAFEN 12
city: BREMERHAVEN
postcode: 27570
website: www.awi.de

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]
 Total cost 239˙860 €
 EC max contribution 239˙860 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-GF
 Starting year n.a.
 Duration (year-month-day) from 0000-00-00   to  0000-00-00

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ALFRED-WEGENER-INSTITUT HELMHOLTZ-ZENTRUM FUR POLAR- UND MEERESFORSCHUNG DE (BREMERHAVEN) coordinator 239˙860.00

Map

 Project objective

The ocean is by far the largest reservoir for carbon dioxide (CO2) on Earth and represents a driving force for climate mitigation. Through photosynthesis, active marine microorganisms (e.g. phytoplankton) convert atmospheric CO2 into biomass, where the majority of it is cycled in the surface waters by diverse processes including bacterial respiration and hydrolysis. Some of this biomass is exported as particulate organic carbon (POC) into the deep ocean, where bacterial cells play a critical role in regulating the efficiency of carbon export because they colonize and enzymatically hydrolyze POC as it sinks . A recent study suggested that signaling mechanisms within particle-associated bacterial communities enhance the activity of hydrolytic proteins involved in POC degradation. This overlooked process, known as quorum sensing, might impact the amount of carbon sequestered in the marine environment and ultimately affect the rate that CO2 is removed from the atmosphere. Quorum sensing (QS) involves the excretion and reception of distinct signaling molecules, but the biogeochemical implications of these bacterial “conversations” are poorly understood. To date, only a few culture-independent studies on QS in the marine environment have been carried out. This project will elucidate the role of QS systems among marine bacteria in triggering the synthesis of specific infochemicals and hydrolytic proteins, as well as its impact on shaping particles and particle-associated bacterial communities. Proposed methods include mass spectrometry, proteomics, three-dimensional particle imaging, molecular assessment of bacterial assemblages, and in situ localization of bacteria on intact particles. The outcome of the project will provide critical information on the importance of QS in regulating the efficiency of POC degradation in the ocean, which is necessary to understand and predict future climate scenarios.

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