New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development

Oil bodies (OBs) are ubiquitous dynamic organelles found in plant seeds. They have attracted increasing attention recently because of their important roles in plant physiology. First, the neutral lipids stored within these organelles serve as an initial, essential source of energy and carbon for see...

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Main Authors: Qun Shao, Xiaofan Liu, Tong Su, Changle Ma, Pingping Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-12-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpls.2019.01568/full
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author Qun Shao
Xiaofan Liu
Tong Su
Changle Ma
Pingping Wang
author_facet Qun Shao
Xiaofan Liu
Tong Su
Changle Ma
Pingping Wang
author_sort Qun Shao
collection DOAJ
description Oil bodies (OBs) are ubiquitous dynamic organelles found in plant seeds. They have attracted increasing attention recently because of their important roles in plant physiology. First, the neutral lipids stored within these organelles serve as an initial, essential source of energy and carbon for seed germination and post-germinative growth of the seedlings. Secondly, they are involved in many other cellular processes such as stress responses, lipid metabolism, organ development, and hormone signaling. The biological functions of seed OBs are dependent on structural proteins, principally oleosins, caleosins, and steroleosins, which are embedded in the OB phospholipid monolayer. Oleosin and caleosin proteins are specific to plants and mainly act as OB structural proteins and are important for the biogenesis, stability, and dynamics of the organelle; whereas steroleosin proteins are also present in mammals and play an important role in steroid hormone metabolism and signaling. Significant progress using new genetic, biochemical, and imaging technologies has uncovered the roles of these proteins. Here, we review recent work on the structural or metabolic roles of these proteins in OB biogenesis, stabilization and degradation, lipid homeostasis and mobilization, hormone signal transduction, stress defenses, and various aspects of plant growth and development.
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spelling doaj.art-cfee8abad8d848e590d106144304da832022-12-22T03:32:27ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2019-12-011010.3389/fpls.2019.01568494493New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant DevelopmentQun ShaoXiaofan LiuTong SuChangle MaPingping WangOil bodies (OBs) are ubiquitous dynamic organelles found in plant seeds. They have attracted increasing attention recently because of their important roles in plant physiology. First, the neutral lipids stored within these organelles serve as an initial, essential source of energy and carbon for seed germination and post-germinative growth of the seedlings. Secondly, they are involved in many other cellular processes such as stress responses, lipid metabolism, organ development, and hormone signaling. The biological functions of seed OBs are dependent on structural proteins, principally oleosins, caleosins, and steroleosins, which are embedded in the OB phospholipid monolayer. Oleosin and caleosin proteins are specific to plants and mainly act as OB structural proteins and are important for the biogenesis, stability, and dynamics of the organelle; whereas steroleosin proteins are also present in mammals and play an important role in steroid hormone metabolism and signaling. Significant progress using new genetic, biochemical, and imaging technologies has uncovered the roles of these proteins. Here, we review recent work on the structural or metabolic roles of these proteins in OB biogenesis, stabilization and degradation, lipid homeostasis and mobilization, hormone signal transduction, stress defenses, and various aspects of plant growth and development.https://www.frontiersin.org/article/10.3389/fpls.2019.01568/fulloil body intrinsic proteinslipid metabolismhormone signalingstress responsesplant development
spellingShingle Qun Shao
Xiaofan Liu
Tong Su
Changle Ma
Pingping Wang
New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development
Frontiers in Plant Science
oil body intrinsic proteins
lipid metabolism
hormone signaling
stress responses
plant development
title New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development
title_full New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development
title_fullStr New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development
title_full_unstemmed New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development
title_short New Insights Into the Role of Seed Oil Body Proteins in Metabolism and Plant Development
title_sort new insights into the role of seed oil body proteins in metabolism and plant development
topic oil body intrinsic proteins
lipid metabolism
hormone signaling
stress responses
plant development
url https://www.frontiersin.org/article/10.3389/fpls.2019.01568/full
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AT tongsu newinsightsintotheroleofseedoilbodyproteinsinmetabolismandplantdevelopment
AT changlema newinsightsintotheroleofseedoilbodyproteinsinmetabolismandplantdevelopment
AT pingpingwang newinsightsintotheroleofseedoilbodyproteinsinmetabolismandplantdevelopment