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. 2014 Jul 28;5:366. doi: 10.3389/fpls.2014.00366

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Copyright © 2014 Domínguez and Cejudo.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Tissues undergoing PCD in developing and germinating cereal seeds. The upper panel represents the increase in seed length and storage accumulation taking as models the wheat and barley seeds. The lower panel indicates the periods of seed development in which the tissues undergo PCD. Stages of development: I, early development; II, differentiation; III, maturation. ESC, embryo-surrounding cells; DPA, days post anthesis (development); DAI, days after imbibition (germination).