The ubiquitin system affects agronomic plant traits

In a single vascular plant species, the ubiquitin system consists of thousands of different proteins involved in attaching ubiquitin to substrates, recognizing or processing ubiquitinated proteins, or constituting or regulating the 26S proteasome. The ubiquitin system affects plant health, reproduct...

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Bibliographic Details
Published in:The Journal of biological chemistry 2020-10, Vol.295 (40), p.13940-13955
Main Authors: Linden, Katrina J., Callis, Judy
Format: Article
Language:English
Subjects:
Crops, Agricultural - genetics
Crops, Agricultural - metabolism
deubiquitylation (deubiquitination)
disease resistance
E3 ligase
E3 ubiquitin ligase
flowering
JBC Reviews
pathogen response
plant
plant biochemistry
plant defense
plant physiology
Plant Proteins - genetics
Plant Proteins - metabolism
protein degradation
protein modification
protein stability
Quantitative Trait, Heritable
seed
ubiquitin
Ubiquitin - genetics
Ubiquitin - metabolism
ubiquitin-conjugating enzyme (E2 enzyme)
Ubiquitination - genetics
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Summary:In a single vascular plant species, the ubiquitin system consists of thousands of different proteins involved in attaching ubiquitin to substrates, recognizing or processing ubiquitinated proteins, or constituting or regulating the 26S proteasome. The ubiquitin system affects plant health, reproduction, and responses to the environment, processes that impact important agronomic traits. Here we summarize three agronomic traits influenced by ubiquitination: induction of flowering, seed size, and pathogen responses. Specifically, we review how the ubiquitin system affects expression of genes or abundance of proteins important for determining when a plant flowers (focusing on FLOWERING LOCUS C, FRIGIDA, and CONSTANS), highlight some recent studies on how seed size is affected by the ubiquitin system, and discuss how the ubiquitin system affects proteins involved in pathogen or effector recognition with details of recent studies on FLAGELLIN SENSING 2 and SUPPRESSOR OF NPR CONSTITUTIVE 1, respectively, as examples. Finally, we discuss the effects of pathogen-derived proteins on plant host ubiquitin system proteins. Further understanding of the molecular basis of the above processes could identify possible genes for modification or selection for crop improvement.
ISSN:0021-9258
1083-351X
DOI:10.1074/jbc.REV120.011303