| Seasonal changes in oleosomic lipids and fatty acids of perennial root nodules of beach pea. | |
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MedLine Citation:
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PMID: 12756915 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Seasonal changes in the fatty acid composition of phospholipids (PL), monoglycerides (MG), diglycerides (DG), free fatty acids (FA) and triglycerides (TG) separated from oleosomes (lipid bodies) of perennial root nodules of beach pea (Lathyrus maritimus) were analysed. Thin layer chromatography (TLC) revealed that PL and MG are the major lipids in nodule oleosomes. The fatty acid profile and overall double bond index (DBI) varied among lipid classes depending upon the season. High DBI in PL and MG found during late winter and early spring indicated that they may play a major role in winter survival and regeneration of perennial nodules. The DBI of DG was high at the end of the fall season and the DBI of FA and TG was high in summer months. The dominant fatty acids are C16:0 followed by C18:0 and C18:1. The levels of many unsaturated fatty acids such as C18:1, C18:2 and C18:3 increased while saturated fatty acid C18:0 decreased during winter. These unsaturated fatty acids possibly play an important role in the protection of nodule cells from cold stress. Nodules seem to retain some fatty acids and selectively utilize specific fatty acids to survive the winter and regenerate in spring. |
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Authors:
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Gurusamy Chinnasamy; Philip James Davis; Arya Kumar Bal |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of plant physiology Volume: 160 ISSN: 0176-1617 ISO Abbreviation: J. Plant Physiol. Publication Date: 2003 Apr |
Date Detail:
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Created Date: 2003-05-21 Completed Date: 2003-09-04 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9882059 Medline TA: J Plant Physiol Country: Germany |
Other Details:
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Languages: eng Pagination: 355-65 Citation Subset: IM |
Affiliation:
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Department of Biology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X9. gurusamy3000@yahoo.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Fatty Acids
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metabolism* Lathyrus / metabolism* Lipid Metabolism* Plant Roots / metabolism* Seasons* |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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