Phytosulfokine Stimulates Somatic Embryogenesis in Cryptomeria
Phytosulfokine Stimulates Somatic Embryogenesis in Cryptomeria
- Plant & Cell Physiology, 44(12), p.1412-1416, 2003 .
Phytosulfokine (PSK), which has been identified as a plant growth factor, had a dramatic stimulatory effect on the formation of somatic embryos of sugi (Cryptomeria japonica)in the presence of polyethylene glycol. The resultant somatic embryos germinated with synchronous sprouting of cotyledons, hypocotyls and roots, and most of the seedlings grew normally. A cDNA clone for the precursor to the PSK peptide of C. japonica was identified in an expressed sequence tags database. Our results support the existence of a PSK signaling pathway in C. japonica.
CRYPTOMERIA JAPONICA
PHYTOSULFOKINE
REGENERATION
SOMATIC EMBRYOGENESIS
SUGI
ZYGOTIC EMBRYO
Phytosulfokine (PSK), which has been identified as a plant growth factor, had a dramatic stimulatory effect on the formation of somatic embryos of sugi (Cryptomeria japonica)in the presence of polyethylene glycol. The resultant somatic embryos germinated with synchronous sprouting of cotyledons, hypocotyls and roots, and most of the seedlings grew normally. A cDNA clone for the precursor to the PSK peptide of C. japonica was identified in an expressed sequence tags database. Our results support the existence of a PSK signaling pathway in C. japonica.
CRYPTOMERIA JAPONICA
PHYTOSULFOKINE
REGENERATION
SOMATIC EMBRYOGENESIS
SUGI
ZYGOTIC EMBRYO