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Tytuł:
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A mutation in the pPLA-IIα gene encoding PATATIN-RELATED PHOSPHOLIPASE a causes late flowering in Arabidopsis.
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Autorzy:
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Kwak JS; Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, South Korea.
Kwon DH; Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, South Korea.
Song JT; Department of Applied Biosciences, Kyungpook National University, Daegu 41566, South Korea.
Seo HS; Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, South Korea. Electronic address: .
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Źródło:
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Biochemical and biophysical research communications [Biochem Biophys Res Commun] 2021 Dec 10; Vol. 582, pp. 16-20. Date of Electronic Publication: 2021 Oct 14.
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Publication: <2002- >: San Diego, CA : Elsevier
Original Publication: New York, Academic Press.
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MeSH Terms:
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Gene Expression Regulation, Plant*
Arabidopsis/*genetics
Arabidopsis Proteins/*genetics
Flowers/*genetics
Hydrolases/*genetics
MADS Domain Proteins/*genetics
RNA, Long Noncoding/*genetics
Arabidopsis/growth & development ; Arabidopsis/metabolism ; Arabidopsis Proteins/metabolism ; Flowers/growth & development ; Flowers/metabolism ; Gene Expression Regulation, Developmental ; Glycolipids/metabolism ; Hydrolases/metabolism ; MADS Domain Proteins/metabolism ; Mutation ; Photoperiod ; RNA, Long Noncoding/metabolism ; Reproduction/genetics ; Time Factors
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Contributed Indexing:
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Keywords: COLDAIR; FLC; Flowering; PATATIN-RELATED PHOSPHOLIPASE 2A; pPLA-IIα
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Substance Nomenclature:
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0 (AGL20 protein, Arabidopsis)
0 (Arabidopsis Proteins)
0 (FLF protein, Arabidopsis)
0 (FT protein, Arabidopsis)
0 (Glycolipids)
0 (MADS Domain Proteins)
0 (RNA, Long Noncoding)
0 (glycerolglycolipids)
EC 3.- (Hydrolases)
EC 3.1.1.- (PLP2 protein, Arabidopsis)
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Entry Date(s):
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Date Created: 20211022 Date Completed: 20211228 Latest Revision: 20211228
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Update Code:
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20240105
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DOI:
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10.1016/j.bbrc.2021.10.031
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PMID:
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34678591
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Arabidopsis PATATIN-RELATED PHOSPHOLIPASE 2A (pPLA-IIα) participates in the responses to various growth conditions. The factors affecting pPLA-IIα gene expression and pPLA-IIα protein activity for gycerolipids have been studied thoroughly, but the role of pPLA-IIα during the reproductive phase remains unclear. The effect of pPLA-IIα on flowering time was therefore investigated. ppla-iiα mutants flowered later than wild-type plants under long day conditions. Expression of the floral stimulators FLOWERING LOCUS T (FT) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1) was downregulated in ppla-iiα mutants compared with their expression in wild-type plants, but expression of the floral repressor FLOWERING LOCUS C (FLC) was upregulated. In addition, expression levels of COLDAIR, a long intronic noncoding RNA, decreased in ppla-iiα mutants. Taken together, these data indicate that pPLA-IIα acts as a positive regulator of flowering time through repression of FLC expression.
Competing Interests: Declaration of competing interest The authors declare that there are no conflicts of interest.
(Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
