SOMATIC EMBRYOGENESIS AND PLANT-REGENERATION FROM IMMATURE SEED-DERIVED CALLI OF RUGOSA ROSE (ROSA-RUGOSA THUNB)

被引:42
作者
KUNITAKE, H [1 ]
IMAMIZO, H [1 ]
MII, M [1 ]
机构
[1] CHIBA UNIV,DEPT HORT,PLANT BREEDING LAB,CHIBA 271,JAPAN
关键词
ROSA-RUGOSA THUNB; SOMATIC EMBRYOGENESIS; PLANT REGENERATION; SUGARS; GALACTOSE; SORBITOL;
D O I
10.1016/0168-9452(93)90239-V
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A procedure for plant regeneration from immature seed-derived calli of rugosa rose (Rosa rugosa Thunb.) via somatic embryogenesis is described. Embryogenic calli were initiated from immature seeds 2-3 weeks after anthesis on Murashige and Skoog (MS) medium without growth regulators. Induced calli had a white, friable and nodular appearance with several proembryos. These calli were subcultured at 20-day intervals on MS medium containing 0.1-0.2 M galactose on which they grew rapidly; but somatic embryogenesis was inhibited. Somatic embryos were again induced from the subcultured calli after transferring to MS medium containing 0.1 M fructose or sucrose but lacking growth regulators. After transferring these embryos (1-2 mm) to MS medium containing 0.1 M sorbitol, 3% of them germinated and grew into plantlets which showed sustained growth on the MS medium containing only 0.1 M sorbitol as the sole carbon source.
引用
收藏
页码:187 / 194
页数:8
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