Small kernel2 encodes a glutaminase in vitamin B6 biosynthesis essential for maize seed development.
- Yan-Zhuo Yang,
- Shuo Ding,
- Yong Wang,
- Cui-Ling Li,
- Yun Shen,
- Robert Meeley,
- Donald R McCarty,
- Bao-Cai Tan
Plant Physiol 2017 Apr 13. Epub 2017 Apr 13.
Shandong University CITY: Jinan POSTAL_CODE: 852 China [CN]
Vitamin B6, an essential co-factor for a range of biochemical reactions and a potent antioxidant, plays important roles in plant growth, development, and stress tolerance. Vitamin B6 deficiency causes embryo lethality in Arabidopsis, but the specific role of vitamin B6 synthesis in endosperm development has not been fully addressed, especially in monocot crops where endosperm constitutes the major portion of the grain. Through molecular characterization of a small kernel2 (smk2) mutant in maize, we reveal that vitamin B6 has differential effects on embryogenesis and endosperm development in maize. Read More