Volume 3 Issue 1, January 1993: 85-92
ORIGINAL ARTICLES
Floral gradient in flowering tobacco in relation to free amino acids
Yongning Chen and Wenan Li
Shanghai Institute of Plant Physiology, Academia Sinica. 300 Fenglin Road, Shanghai 200032, China
Correspondence:
By employing TCLs (thin cell layers) culture, the floral gradient in flowering tobacco of different developmental stages was confirmed. The TCLs from early flowering tobacco regenerated more floral buds than those from the tobacco plants in full blooming or fruiting stages. Analysis of free amino acid levels revealed the acropetal gradient of Pro in flowering tobacco stem. L-Pro, L-Trp, D,L-Met and L-Arg were respectively added into the culture medium for testing their influence on floral bud formation from tobacco pedicel segments. Only L-Trp evidently enhanced the floral bud neoformation.
Cell Res 3: 85-92; doi:10.1038/cr.1993.9
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