Multifaceted mechanisms controlling grain disarticulation in the Poaceae.

Autor: Yu Y; Donald Danforth Plant Science Center, 975 North Warson Road, Saint Louis, MO 63132, USA. Electronic address: yyu@danforthcenter.org., Kellogg EA; Donald Danforth Plant Science Center, 975 North Warson Road, Saint Louis, MO 63132, USA.
Jazyk: angličtina
Zdroj: Current opinion in plant biology [Curr Opin Plant Biol] 2024 Oct; Vol. 81, pp. 102564. Date of Electronic Publication: 2024 Jun 02.
DOI: 10.1016/j.pbi.2024.102564
Abstrakt: Cereal shattering and threshability, both involving disarticulation of grains from the mother plant, are important traits for cereal domestication and improvement. Recent studies highlighted diverse mechanisms influencing shattering and threshability, either through development of the disarticulation zone or floral structures enclosing or supporting the disarticulation unit. Differential lignification in the disarticulation zone is essential for rice shattering but not required for many other grasses. During shattering, the disarticulation zone undergoes either abscission leading to cell separation or cell breakage. Threshability can be affected by the morphology and toughness of the enclosing floral structures, and in some species, by the inherent weakness of the disarticulation zone. Fine-tuning shattering and threshability is essential for breeding wild and less domesticated cereals.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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