Lipid Composition of Latex and Rubber Particles in Hevea brasiliensis and Taraxacum kok-saghyz

• Published in: Molecules (Basel, Switzerland) Vol. 25; no. 21; p. 5110
• Main Authors: Bae, Sung Woo, Jung, Sunghee, Choi, Sang Chul, Kim, Mi Young, Ryu, Stephen Beungtae
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 03-11-2020; MDPI
• Subjects: Artificial rubber; Biosynthesis; Cloning; Composition; Diglycerides; galactolipid; Galactolipids; Hevea - chemistry; Hevea brasiliensis; Latex; Latex - chemistry; Lipid composition; Lipids; Lipids - chemistry; Natural rubber; Pará rubber tree; phospholipid; Phospholipids; Proteins; Rubber; rubber dandelion; Rubber trees; Taraxacum; Taraxacum - chemistry; Pará rubber tree; galactolipid; natural rubber; phospholipid; rubber dandelion
• ISSN: 1420-3049; 1420-3049
• DOI: 10.3390/molecules25215110

Natural rubber is usually synthesized in the rubber particles present in the latex of rubber-producing plants such as the Pará rubber tree (
) and rubber dandelion (
). Since the detailed lipid compositions of fresh latex and rubber particles of the plants are poorly known, the present study reports detailed compound lipid composition, focusing on phospholipids and galactolipids in the latex and rubber particles of the plants. In the fresh latex and rubber particles of both plants, phospholipids were much more dominant (85-99%) compared to galactolipids. Among the nine classes of phospholipids, phosphatidylcholines (PCs) were most abundant, at
80%, in both plants. Among PCs, PC (36:4) and PC (34:2) were most abundant in the rubber tree and rubber dandelion, respectively. Two classes of galactolipids, monogalactosyl diacylglycerol and digalactosyl diacylglycerol, were detected as 12% and 1%, respectively, of total compound lipids in rubber tree, whereas their percentages in the rubber dandelion were negligible (< 1%). Overall, the compound lipid composition differed only slightly between the fresh latex and the rubber particles of both rubber plants. These results provide fundamental data on the lipid composition of rubber particles in two rubber-producing plants, which can serve as a basis for artificial rubber particle production in the future.