Abstract
The sphingoid long-chain base (LCB) composition of glucosylceramides was characterized in 31 species of Fabaceae including the model legumes Lotus japonicus and Medicago truncatula. With the exception of Lupinus texensis L, the 8-trans/cis-unsaturated isomers of 4-hydroxy-8-sphingenines [i.e., t18:1 (8t) plus t18:1 (8c)] were the major components in each species. In tribe Fabeae, each species from four genera—Pisum, Lathyrus, Lens, and Vicia—showed that more than 50% of dihydroxy sphingoid LCBs are 8-sphingenines [i.e., d18:1 (8t) plus d18:1 (8c)]. These results suggest that the sphingoid LCB composition of glucosylceramides reflects the phylogenetic relationships within the Fabeae.
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Acknowledgments
We wish to thank Dr. Kazuhiro Toyoda of Okayama University for his kind donation of the M. truncatula seeds. We also thank Chisako Taki, Maiko Asada, Chihiro Iwami, Naoko Shimada, and Kaoru Nishikawa for their contributions to our study.
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Minamioka, H., Imai, H. Sphingoid long-chain base composition of glucosylceramides in Fabaceae: a phylogenetic interpretation of Fabeae. J Plant Res 122, 415–419 (2009). https://doi.org/10.1007/s10265-009-0227-7
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DOI: https://doi.org/10.1007/s10265-009-0227-7