Volume 16, No 5, May 2006
ISSN: 1001-0602
EISSN: 1748-7838 2018
impact factor 17.848*
(Clarivate Analytics, 2019)
Volume 16 Issue 5, May 2006: 446-456
ORIGINAL ARTICLES
BUD2, encoding an S-adenosylmethionine decarboxylase, is required for Arabidopsis growth and development
Chunmin Ge, Xia Cui, Yonghong Wang, Yuxin Hu, Zhiming Fu, Dongfen Zhang, Zhukuan Cheng, Jiayang Li
1State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; 2Graduate School, Chinese Academy of Sciences, Beijing 100101, China; 3Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Correspondence: Jiayang Li(jyli@genetics.ac.cn)
Polyamines are implicated in regulating various developmental processes in plants, but their exact roles and how they govern these processes still remain elusive. We report here an Arabidopsis bushy and dwarf mutant, bud2, which results from the complete deletion of one member of the small gene family that encodes S-adenosylmethionine decarboxylases (SAMDCs) necessary for the formation of the indispensable intermediate in the polyamine biosynthetic pathway. The bud2 plant has enlarged vascular systems in inflorescences, roots, and petioles, and an altered homeostasis of polyamines. The double mutant of bud2 and samdc1, a knockdown mutant of another SAMDC member, is embryo lethal, demonstrating that SAMDCs are essential for plant embryogenesis. Our results suggest that polyamines are required for the normal growth and development of higher plants.
Cell Research (2006) 16:446-456. doi:10.1038/sj.cr.7310056; published online 15 May 2006
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