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Vacuolar processing enzyme 4 contributes to maternal control of grain size in barley by executing programmed cell death in the pericarp.

The New phytologist - 1 May 2018

Radchuk Volodymyr, Tran Van, Radchuk Ruslana, Diaz-Mendoza Mercedes, Weier Diana, Fuchs Joerg, Riewe David, Hensel Goetz, Kumlehn Jochen, Munz Eberhard, Heinzel Nicolas, Rolletschek Hardy, Martinez Manuel, Borisjuk Ljudmilla

Abstract excerpt

The angiosperm embryo and endosperm are limited in space because they grow inside maternal seed tissues. The elimination of cell layers of the maternal seed coat by programmed cell death (PCD) could provide space and nutrition to the filial organs. Using the barley (Hordeum vulgare L.) seed as a model, we elucidated the role of vacuolar processing enzyme 4 (VPE4) in cereals by using an RNAi approach and targeting...

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PMID: 28836669
DOI: 10.1111/nph.14729

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