Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 70, Issue 7, Pages 2097-2112Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erz072
Keywords
Developmental PCD (dPCD); plant; programmed cell death (PCD); protease; development; protein degradation
Categories
Funding
- ERC StG PROCELLDEATH [639234]
- European Research Council (ERC) [639234] Funding Source: European Research Council (ERC)
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Proteases are among the key regulators of most forms of programmed cell death (PCD) in animals. Many PCD processes have also been associated with protease expression or activation in plants, However, functional evidence for the roles and actual modes of action of plant proteases in PCD remains surprisingly limited. In this review, we provide an update on protease involvement in the context of developmentally regulated plant PCD. To illustrate the diversity of protease functions, we focus on several prominent developmental PCD processes, including xylem and tapetum maturation, suspensor elimination, endosperm degradation, and seed coat formation, as well as plant senescence processes. Despite the substantial advances in the field, protease functions are often only correlatively linked to developmental PCD, and the specific molecular roles of proteases in many developmental PCD processes remain to be elucidated.
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