Characterization of oil bodies in jelly fig achenes

Plant Physiology and Biochemistry : PPB
Anna C N ChuaJason T C Tzen

Abstract

Thin-layer chromatography analysis revealed that the contents stored in oil bodies isolated from jelly fig (Ficus awkeotsang Makino) achenes were mainly neutral lipids (>90% triacylglycerols and approximately 5% diacylglycerols). Fatty acids released from the neutral lipids of achene oil bodies were highly unsaturated (62.65% alpha-linolenic acid, 18.24% linoleic acid, and 10.62% oleic acid). The integrity of isolated oil bodies was presumably maintained via electronegative repulsion and steric hindrance provided by their surface proteins. Immunological cross-recognition using antibodies against sesame oil-body proteins indicated that two oleosin isoforms and one caleosin were present in these oil bodies. MALDI-MS analyses confirmed that the three full-length cDNA fragments obtained by PCR cloning from maturing achenes encoded the two jelly fig oleosin isoforms and one caleosin identified by immunological screening.

References

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Aug 19, 2007·Journal of Agricultural and Food Chemistry·Anna C N ChuaJason T C Tzen

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