Objective
This proposal will use an innovative multidisciplinary approach to investigate complex invader-mediated reprogramming of eukaryotic organisms in an ancient microbe-host association, arbuscular mycorrhiza (AM) symbiosis. We aim to pioneer the application of in planta time-lapse live-cell imaging using multi-photon confocal microscopy (MPCM) combined with ultrathin (2-D) TEM stereology and high-resolution three dimensional (3-D) Serial Block-Face Scanning Electron Microscopy (SBFSEM). Data sets generated will provide a high resolution quantitative 3-D reconstruction of membrane surfaces intimately involved in the intracellular plant-fungal dialogue.
To date, time-lapse live-cell imaging using confocal laser scanning microscopy (CLSM) in inner cortical root cell layers has been hampered by low resolution and photo-bleaching that impairs cell viability. Deep-tissue imaging at high resolution with minimal tissue damage is permitted by state-of-the-art multi-focal MPCM recently acquired at the Cambridge Advanced Imaging Centre (CAIC). MPCM of rice lines expressing fluorescently labelled membrane marker-proteins will provide a first quantitative 4-D account of membrane dynamics during intracellular colonization by AM fungi. In addition, 2-D ultrathin TEM will allow quantitative stereological estimations of the volume fraction of the host occupied by the microbe and surface area per unit volume of host and fungal membranes. SBFSEM imaging with 3-D reconstruction at a resolution of 5nm will provide a first structural atlas of 'naïve' and colonized cells at unprecedented resolution. MPCM and SBFSEM phenotyping of rice mutants compromised in arbuscule development will provide a novel insight into the complex molecular mechanisms that underpin cellular morphogenesis during plant endosymbiosis. Significantly, this data will provide a structural framework for 3-D modelling of complex membrane dynamics during the establishment of endosymbioses.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences microbiology mycology
- natural sciences physical sciences optics microscopy electron microscopy
- natural sciences biological sciences biological behavioural sciences ethology biological interactions
- natural sciences physical sciences optics microscopy confocal microscopy
- natural sciences physical sciences optics laser physics
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP7-PEOPLE-2013-IEF
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
CB2 1TN CAMBRIDGE
United Kingdom
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