Fourteen soybean (Glycine m a x L.) genotypes were evaluated for their regenerability from protoplasts using a procedure previously descibed for the cultivar Clark 63. Protoplasts were isolated from immature cotyledon tissue and were cultured in liquid or agarose gelled KP8, MS or B5 medium with dif
Plant regeneration from protoplasts of indica rice: genotypic differences in culture response
โ Scribed by J. Kyozuka; E. Otoo; K. Shimamoto
- Publisher
- Springer
- Year
- 1988
- Tongue
- English
- Weight
- 698 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0040-5752
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โฆ Synopsis
Fourteen varieties of indica rice (Oryza saliva L.) were examined for their capacity for plant regeneration from protoplasts using the nurse culture methods developed for japonica rice. Calli induced from germinating seeds were grouped into two types: type I, white and compact; type II, yellow and friable. In four varieties producing type II callus, colony formation (2%-4.5%) and plant regeneration (2%-35%) were observed. The inability to develop suspension cultures was a major obstacle in regenerating plants from protoplasts of the remaining rice varieties studied.
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Enzymatic digestion of newly expanded leaves of glasshouse-grown seedlings of passionfruit released protoplasts which exhibited highest division frequency (38.6%) when plated at a density of 1.5ร10(5) ppts ml(-1) in agarose-solidified droplets of KM8P medium containing the antibiotic cefotaxime (250