Document Detail


Lipid biosynthesis in developing perilla seeds.
MedLine Citation:
PMID:  12711134     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In developing seeds of Perilla frutescens var. crispa, the triacylglycerol fraction was found to accumulate between 15 and 19 days after flowering. Of this, 65% of the total fatty acids was alpha-linolenic acid in the mature seeds, with the latter being esterified in comparable amounts at all positions (sn-1, 2 and 3) of the glycerol residue. It was also demonstrated that, 1-acylglycerol-3-phosphate acyltransferase, which catalyzes esterification at the sn-2 position of the glycerol backbone, showed low activities for alpha-linolenoyl-CoA as substrate. These findings suggest that the diacylglycerol precursor for triacylglycerol synthesis is not directly derived from phosphatidic acid through the glycerol phosphate pathway.
Authors:
Ken'ichi Ichihara; Yasumasa Suda
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Phytochemistry     Volume:  63     ISSN:  0031-9422     ISO Abbreviation:  Phytochemistry     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-04-24     Completed Date:  2003-07-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0151434     Medline TA:  Phytochemistry     Country:  United States    
Other Details:
Languages:  eng     Pagination:  139-43     Citation Subset:  IM    
Affiliation:
Biological Chemistry, Faculty of Agriculture, Kyoto Prefectural University, Shimogamo, Kyoto 606-8522, Japan. ichihara@kpu.ac.jp
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MeSH Terms
Descriptor/Qualifier:
1-Acylglycerol-3-Phosphate O-Acyltransferase
Acyl Coenzyme A / metabolism
Acyltransferases / metabolism
Esterification
Glycerol / chemistry,  metabolism
Models, Biological
Perilla / metabolism*
Seeds / chemistry,  growth & development*,  metabolism*
Stereoisomerism
Triglycerides / biosynthesis*
alpha-Linolenic Acid / chemistry,  metabolism
Chemical
Reg. No./Substance:
0/Acyl Coenzyme A; 0/Triglycerides; 463-40-1/alpha-Linolenic Acid; 56-81-5/Glycerol; EC 2.3.-/Acyltransferases; EC 2.3.1.51/1-Acylglycerol-3-Phosphate O-Acyltransferase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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