Additional nitrogen fertilization at heading time of rice down-regulates cellulose synthesis in seed endosperm.

ABSTRACT: The balance between carbon and nitrogen is a key determinant of seed storage components, and thus, is of great importance to rice and other seed-based food crops. To clarify the influence of the rhizosphere carbon/nitrogen balance during the maturation stage of several seed components, transcriptome analysis was performed on the seeds from rice plants that were provided additional nitrogen fertilization at heading time. As a result, it was assessed that genes associated with molecular processes such as photosynthesis, trehalose metabolism, carbon fixation, amino acid metabolism, and cell wall metabolism were differentially expressed. Moreover, cellulose and sucrose synthases, which are involved in cellulose synthesis, were down-regulated. Therefore, we compared cellulose content of mature

SUBMITTER: Midorikawa K 

PROVIDER: S-EPMC4048278 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature