Brassinosteroids: Essential regulators of plant growth and development

被引:1059
作者
Clouse, SD [1 ]
Sasse, JM
机构
[1] N Carolina State Univ, Dept Hort Sci, Raleigh, NC 27695 USA
[2] Univ Melbourne, Sch Forestry & Resource Conservat, Parkville, Vic 3052, Australia
来源
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY | 1998年 / 49卷
关键词
steroid biosynthesis; cell elongation; signal transduction; hormone-insensitive mutant; hormone-deficient mutant;
D O I
10.1146/annurev.arplant.49.1.427
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 [生物化学与分子生物学]; 081704 [应用化学];
摘要
Brassinosteroids (BRs) are growth-promoting natural products found at low levels in pollen, seeds, and young vegetative tissues throughout the plant kingdom. Detailed studies of BR biosynthesis and metabolism, coupled with the recent identification of BR-insensitive and BR-deficient mutants, has greatly expanded our view of steroids as signals controlling plant growth and development. This review examines the microchemical and molecular genetic analyses that have provided convincing evidence for an essential role of BRs in diverse developmental programs, including cell expansion, vascular differentiation, etiolation, and reproductive development. Recent advances relevant to the molecular mechanisms of BR-regulated gene expression and BR signal transduction are also discussed.
引用
收藏
页码:427 / 451
页数:25
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