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bi-BLOCK SIGNED

Building and bypassing plant polyspermy blocks

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

bi-BLOCK project word cloud

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

block employed sexually transporting egg ethylene barriers triggered tube eukaryotes evolution maximize plant characterising tremendous shown pollen reproducing species tightly accordingly flowering organisms adaptations ratios ultimate reproductive plants mechanisms risk tubes fertilised capitalizing lethal molecular uncompromising supernumerary fusion single strategy survival approaching earth relaxed levels ovule underlying sperm reproduce amounts hyposensitive polyspermy

Project "bi-BLOCK" data sheet

The following table provides information about the project.

Coordinator	UNIVERSITAET BREMEN Organization address address: Bibliothekstrasse 1 city: BREMEN postcode: 28359 website: www.uni-bremen.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	1˙910˙769 €
EC max contribution	1˙910˙769 € (100%)
Programme	1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
Code Call	ERC-2014-CoG
Funding Scheme	ERC-COG
Starting year	2015
Duration (year-month-day)	from 2015-09-01 to 2021-03-31

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	UNIVERSITAET BREMEN UNIVERSITAET BREMEN Organization address address: Bibliothekstrasse 1 city: BREMEN postcode: 28359 website: www.uni-bremen.de contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	DE (BREMEN)	coordinator	1˙910˙769.00

Map

Project objective

The ultimate goal for the survival of all species on earth is to reproduce. This uncompromising principle has triggered the evolution of numerous adaptations. One strategy commonly employed by sexually reproducing eukaryotes is the production of tremendous amounts of sperm to maximize the likelihood of an egg becoming fertilised. High sperm to egg ratios are, however, associated with an increased risk of supernumerary sperm fusion. This so-called polyspermy is lethal in many organisms. Accordingly, eukaryotes have evolved polyspermy barriers, which are implemented at different levels in the reproductive process. Flowering plants tightly control the number of sperm-transporting pollen tubes approaching a single ovule by a so-called pollen tube block. We have recently shown that the pollen tube block is relaxed in ethylene hyposensitive plants. Capitalizing on these results, this project aims at identifying and characterising the molecular mechanisms underlying plant polyspermy barriers.

Publications

List of publications.
year	authors and title	journal	last update
2017	Dawit G Tekleyohans, Yanbo Mao, Christina KÃ¤gi, York-Dieter Stierhof, Rita GroÃŸ-Hardt Polyspermy barriers: a plant perspective published pages: 131-137, ISSN: 1369-5266, DOI: 10.1016/j.pbi.2016.11.012	Current Opinion in Plant Biology 35	2020-01-24
2017	Thomas Nakel, Dawit G. Tekleyohans, Yanbo Mao, Golo Fuchert, Dieu Vo, Rita GroÃŸ-Hardt Triparental plants provide direct evidence for polyspermy induced polyploidy published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-017-01044-y	Nature Communications 8/1	2020-01-24

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The information about "BI-BLOCK" are provided by the European Opendata Portal: CORDIS opendata.