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- Title
VIRESCENT-ALBINO LEAF 1 regulates leaf colour development and cell division in rice.
- Authors
Zhang, Ting; Feng, Ping; Li, Yunfeng; Yu, Peng; Yu, Guoling; Sang, Xianchun; Ling, Yinghua; Zeng, Xiaoqin; Li, Yidan; Huang, Junyang
- Abstract
The de novo synthesis of purine nucleotides is crucial to all living organisms, but limited information is available for plants. In this study, we isolated a virescent-albino leaf 1 (val1) mutant of rice (Oryza sativa) that produces dynamic green-revertible albino and narrow-leaf phenotypes. In albino leaves, chloroplast development was defective, pigment contents were reduced, and cell division was impaired compared with the wild-type. Map-based cloning revealed that VAL1 encodes a phosphoribosylamine-glycine ligase (PurD), the second enzyme in the de novo purine biosynthesis pathway. Subcellular localization analysis demonstrated that VAL1 was localized in the chloroplast. Our results demonstrate that VAL1 is a crucial enzyme in the de novo purine biosynthesis pathway and is involved in regulating chloroplast development, chlorophyll metabolism, and cell division during leaf development in rice.
- Subjects
LEAF color; RICE breeding; CELL division; NUCLEOTIDE sequence; PHOSPHORIBOSYLAMINES; RIBOSE phosphates; PLANTS
- Publication
Journal of Experimental Botany, 2018, Vol 69, Issue 20, p4791
- ISSN
0022-0957
- Publication type
Article
- DOI
10.1093/jxb/ery250