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Cho, Moo Je
Ulsan National Institute of Science and Technology
Research Interests
  • Calcium Signaling
  • Calmodulin
  • Plant Defense Mechanism

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Characterization of phospholipid and fatty acid composition in the amp 1-4 mutant compared to wild-type Arabidopsis thaliana

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Title
Characterization of phospholipid and fatty acid composition in the amp 1-4 mutant compared to wild-type Arabidopsis thaliana
Author
Nam, IHong, YHwang, ICho, Moo JePak, Y
Issue Date
1999-01
Publisher
Springer Verlag
Citation
JOURNAL OF BIOCHEMISTRY AND MOLECULAR BIOLOGY, v.32, no.1, pp.6 - 11
Abstract
To understand the function of phospholipids and their fatty acid composition on the morphological changes in the amp 1-4 mutant of Arabidopsis, the mutant was compared to the wild-type Arabidopsis by TLC, HPTLC, phosphorous assay, HPLC, and GC. In the mutant, phosphatidylethanolamine (PE) was increased fi-fold and phosphatidylglycerol (PG) was decreased 1.2-fold (nmol phosphorous/g tissue), Inositol phospholipids showed a generally increased trend ranging from 1.4- to 3.0-fold (nmol inositol/g tissue). When fatty acid composition of the mutant was compared to the wildtype, linoleic (18:2) and linolenic (18:3) acids of phosphatidylcholine (PC) and PG were decreased but palmitoleic acid (16:1) and oleic acid (18:1) of PC was increased 2.5- and 2.1-fold (mol%), respectively. In galactolipids, myristic acid (14:0) of monogalactosyldiacylglycerol (MGDG) were increased 5.8-fold (mol%), Among the inositol phospholipids, lysophosphatidylinositol (L-PI) and phosphatidylinosltol 4,5-bisphosphate (PIP2) showed 4- and 1.9-fold (mol%) increase of 16:1, respectively. These results suggest that the increase of PE, the decrease of PG, the increase of inositol phospholipids, and the altered fatty acid composition are related to the phenotypic changes affecting the morphological features, and might cause different physiological changes in the amp 1-4 mutant compared to wild-type Arabidopsis.
URI
https://scholarworks.unist.ac.kr/handle/201301/6311
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0033477177
ISSN
1225-8687
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BIO_Journal Papers
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