Summary
With barley a large variation in frequency of plant formation from microspores of spikes from the same plant has been observed. The highest frequency of plant formation was obtained when culturing anthers in the dark on a high Ficoll medium containing 2,4-D and kinetin to induce proembryo (or callus) formation. Subsequently the proembryos or calli were cultured in dim light on a high Ficoll-high sugar medium containing IBA and kinetin. Finally the embryos were transferred to a starch agar medium. A maximum of 13 green plants were obtained from microspores of a single anther.
The ratios of green to albino microspore derived plants varied from 9∶1 to 1∶9 depending on culture conditions. Under anaerobic conditions, lactic acid and other organic acids may have damaged the organelles in the cells resulting in the formation of albino plants. Thus, direct embryogenesis by using a well-buffered, high Ficoll-high sugar medium and proper aeration are essential for obtaining high frequency of green plants from microspores.
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Abbreviations
- 2,4-D:
-
2,4 dichlorophenoxyacetic acid
- IBA:
-
3 indolylbutyric acid
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Communicated by F. Constabel
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Kao, K.N., Saleem, M., Abrams, S. et al. Culture conditions for induction of green plants from barley microspores by anther culture methods. Plant Cell Reports 9, 595–601 (1991). https://doi.org/10.1007/BF00231796
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DOI: https://doi.org/10.1007/BF00231796