Opendata, web and dolomites

ROLLBAR SIGNED

Roots in armour - a barrier induced to protect against intrusion of soil phytotoxins?

Total Cost €

0

EC-Contrib. €

0

Partnership

0

Views

0

 ROLLBAR project word cloud

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

surfaces    levels    contrasting    inhabiting    soils    oxidation    light    escapes    plants    potent    oxidised    prevent    direct    precipitate    phytotoxin    filled    floods    novelty    gas    inside    root    radial    acting    traits    layer    relies    photosynthesis    sulfides    microsensors    depositions    species    whereas    shield    trigger    shoot    experimental    barrier    plant    tolerance    sulfate    diffusion    oxidises    chemical    minerals    trait    rollbar    spaces    chemically    obtaining    aerenchyma    sleeving    protecting    enhanced    reduce    possess    fe    inherently    sulfide    flood    impede    plaques    oxygen    o2    harmful    environments    frequent    tidal    flooded    cell    contemporary    shed    planar    amongst    iron    roots    saltmarsh    controversial    internal    scientific    toxicity    occurs    compounds    rhizosphere    intrusion    outer    status    protect    tissues    interface    strategies    electrodes    questions    rol    recognised    function    suberin    optodes   

Project "ROLLBAR" data sheet

The following table provides information about the project.

Coordinator
KOBENHAVNS UNIVERSITET 

Organization address
address: NORREGADE 10
city: KOBENHAVN
postcode: 1165
website: www.ku.dk

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 Denmark [DK]
 Total cost 207˙312 €
 EC max contribution 207˙312 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2018
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2019
 Duration (year-month-day) from 2019-09-02   to  2021-09-01

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    KOBENHAVNS UNIVERSITET DK (KOBENHAVN) coordinator 207˙312.00

Map

 Project objective

ROLLBAR focuses on the role of two contrasting strategies against sulfide toxicity of saltmarsh plant species: i) root radial oxygen loss (ROL) and ii) formation of a root barrier to ROL. Plants inhabiting tidal environments with frequent floods possess internal gas-filled spaces in their tissues (aerenchyma), facilitating oxygen (O2) diffusion from shoot to roots. This trait enables tolerance to the inherently low O2 availability in flooded soils. Such soils show high levels of reduced compounds harmful for plants, amongst which sulfide is a potent phytotoxin. The role of ROL and a root ROL barrier in flood tolerance is widely recognised whereas the function of these traits in protecting roots from phytotoxin intrusion in plant tissues is still controversial. The ROLLBAR project aims to shed light on this topic. O2 escapes from roots via ROL and oxidises the rhizosphere; sulfides are chemically oxidised to sulfate and reduced iron [Fe(II)] is oxidised to Fe(III), which can precipitate on root surfaces as iron minerals called iron plaques. Both ROL and iron plaques can protect plants from sulfide intrusion. When the root ROL barrier (suberin depositions in the outer cell layer) is developed, oxidation of sulfides occurs inside roots, as a result of the better O2 status further enhanced by photosynthesis in light. The ROL barrier could impede sulfide intrusion acting as a shield, although there is no experimental evidence to support this function. The project aims to address three major scientific questions: i) which chemical compounds trigger the formation of a root barrier to ROL? ii) can the ROL barrier prevent sulfide intrusion into roots? and iii) can ROL and iron plaques reduce sulfide intrusion into roots? The novelty of the project relies on obtaining direct measurements of O2 and sulfides at the root-rhizosphere interface of key species using advanced contemporary technology such as microsensors, root-sleeving electrodes and planar optodes.

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The information about "ROLLBAR" are provided by the European Opendata Portal: CORDIS opendata.

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