title: Influence of sugars and hormones on the genes involved in sucrose metabolism in maize endosperms.
abstract: Starch is the major storage product in the endosperm of cereals. Its synthesis is closely related to sucrose metabolism. In our previous study, we found that the expression of most of the genes involved in starch synthesis might be regulated by sugars and hormones in the maize endosperm. However, little is known regarding the transcriptional regulation of genes involved in sucrose metabolism. Thus, in this study, maize endosperms were treated with different sugars and hormones and the expression of genes involved in sucrose metabolism (including synthesis, degradation, and transport) were evaluated using real-time quantitative reverse transcription-polymerase chain reaction. We found that genes affected by different sugars and hormones were primarily regulated by abscisic acid. Sucrose and abscisic acid showed an additive effect on the expression of some genes. Differences in the transcriptional regulation of genes involved in sucrose metabolism and starch biosynthesis were observed.
authors: College of Life Science, Sichuan Agricultural University, Ya'an, China.
authors: X D
authors: XD
authors: Ren
authors: College of Life Science, Sichuan Agricultural University, Ya'an, China.
authors: H M
authors: HM
authors: Liu
authors: Maize Research Institute, Sichuan Agricultural University, Chengdu, China.
authors: Y H
authors: YH
authors: Liu
authors: College of Agronomy, Sichuan Agricultural University, Chengdu, China.
authors: Y F
authors: YF
authors: Hu
authors: College of Life Science, Sichuan Agricultural University, Ya'an, China junjiezh@163.com.
authors: J J
authors: JJ
authors: Zhang
authors: Maize Research Institute, Sichuan Agricultural University, Chengdu, China.
authors: Y B
authors: YB
authors: Huang
mesh_terms: D000040:Abscisic Acid / Q000378:metabolism; D050260:Carbohydrate Metabolism; D056625:Endosperm / Q000235:genetics / Q000378:metabolism*; D005632:Fructose / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D005875:Gibberellins / Q000378:metabolism; D005947:Glucose / Q000378:metabolism; D007210:Indoleacetic Acids / Q000378:metabolism; D018749:RNA, Plant / Q000235:genetics; D013213:Starch / Q000096:biosynthesis; D013395:Sucrose / Q000378:metabolism; D003313:Zea mays / Q000235:genetics / Q000378:metabolism*
chemical_list: D005875:Gibberellins; D007210:Indoleacetic Acids; D018749:RNA, Plant; D005632:Fructose; D013395:Sucrose; C030737:indoleacetic acid; D000040:Abscisic Acid; D013213:Starch; C007842:gibberellic acid; D005947:Glucose