The presence of tkree water-soluble gibberellins was confirmed in immature seeds of morning-glory (Pharbitis nil). The structure of the main component has been elucidated as 2-O-fl-glucosyl-gibbereUin A s. It shows marked growth-promoting activity on rice seedlings but is far less active on dwarf ma
Isolation of two new gibberellins from immature seeds ofCanavalia
โ Scribed by Saburo Tamura; Nobutaka Takahashi; Noboru Murofushi; Takao Yokota; Jiro Kato; Yoshitaka Shiotani
- Publisher
- Springer-Verlag
- Year
- 1967
- Tongue
- English
- Weight
- 170 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0032-0935
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โฆ Synopsis
Two new gibberellins, Canavalia gibberellin-I (CG-I) and Canavalia gibberellin-II (CG-II), were isolated from immature seeds of sword bean, Canavalia gladiata DC. The molecular formulas C19t{2207 and C19H2~O6, were assigned to CG-I and CG-II, respectively, on the basis of high resolution mass, infrared and NMI% spectra. The growth-promoting effects of CG-I and CG-II on dwarf maize mutants d 1 and ds, rice seedlings and dwarf peas, Progress No. 5, are reported.
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Two new gibberellins, gibberellins Ae6 and Ae~ (GA2~ and GA2:), and their glucosides have been isolated from immature seeds of Japanese morning-glory (Pharbiti8 nil), together with GA s and its glucoside. GA~6, GA2~ and their glucosides showed only slight growth-promoting activities on seedlings of
Isolation and biological aotivlties of two novel gibberellins, Canavalla gibberellln-I and -11 (CG-I, CG-II) contained in Immature seeds of sword bean (Canavalia aladiata DC.) have been already reported (1). In this paper we wish to report the determination of their structures.
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