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Grain Filling in Barley Relies on Developmentally Controlled Programmed Cell Death

Overview
Journal Commun Biol
Specialty Biology
Date 2021 Mar 31
PMID 33785858
Citations 7
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Abstract

Cereal grains contribute substantially to the human diet. The maternal plant provides the carbohydrate and nitrogen sources deposited in the endosperm, but the basis for their spatial allocation during the grain filling process is obscure. Here, vacuolar processing enzymes have been shown to both mediate programmed cell death (PCD) in the maternal tissues of a barley grain and influence the delivery of assimilate to the endosperm. The proposed centrality of PCD has implications for cereal crop improvement.

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