Comparative analysis of N-glycans in the ungerminated and germinated stages of Oryza sativa

Article

Horiuchi, Risa, Hirotsu, Naoki and Miyanishi, Nobumitsu. 2015. "Comparative analysis of N-glycans in the ungerminated and germinated stages of Oryza sativa." Carbohydrate Research. 418, pp. 1-8. https://doi.org/10.1016/j.carres.2015.09.008
Article Title

Comparative analysis of N-glycans in the ungerminated and germinated stages of Oryza sativa

ERA Journal ID1569
Article CategoryArticle
AuthorsHoriuchi, Risa (Author), Hirotsu, Naoki (Author) and Miyanishi, Nobumitsu (Author)
Journal TitleCarbohydrate Research
Journal Citation418, pp. 1-8
Number of Pages8
Year2015
Place of PublicationUnited Kingdom
ISSN0008-6215
1873-426X
Digital Object Identifier (DOI)https://doi.org/10.1016/j.carres.2015.09.008
Web Address (URL)http://www.sciencedirect.com/science/article/pii/S0008621515002700
Abstract

All fundamental information such as signal transduction, metabolic control, infection, cell-to-cell signaling, and cell differentiation related to the growth of plants are preserved in germs. In preserving these information, glycans have a key role and are involved in the development and differentiation of organisms. Glycans which exist in rice germ are expected to have an important role in germination. In this study, we performed structural and correlation analysis of the N-glycans in rice germ before and after germination. Our results confirmed that the N-glycans in the ungerminated stage of the rice germ had low number of N-glycans consisting only of six kinds especially with highmannose and paucimannose type N-glycans being 16.0% and 76.7%, respectively. On the other hand, after 48 hours germinated germ stage, there was an increase in the complex type N-glycans with the appearance of Lewis a structure, the most complex type and a decrease in paucimannose types. These results suggest that at least six kinds of N-glycans are utilized for long time preservation of rice seed, while the diversification of most complex types of N-glycans is produced an environment dependent for shoot formation of rice.

KeywordsOryza sativa; N-Glycans; germination; Lewis a
ANZSRC Field of Research 2020310101. Analytical biochemistry
310804. Plant developmental and reproductive biology
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Byline AffiliationsToyo University, Japan
Institution of OriginUniversity of Southern Queensland
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