Root-Specific Reduction of Cytokinin Causes Enhanced Root Growth, Drought Tolerance, and Leaf Mineral Enrichment in Arabidopsis and Tobacco[C][W][OA]

摘要

Root-specific expression of a cytokinin-degrading CKX gene induces the formation of a larger root system, whereas growth and development of the shoot remain similar. Transgenic plants exhibiting a larger root system had a higher survival rate after severe drought treatment and an increased leaf element content, suggesting the approach might be useful to optimize crop plants.