Calcium Ion and Protocorm Differentiation for Cymbidium Hybrid Cymbidium Lucky Gloria × Cymbidium Lovely Moon 'Crescent'

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The low protocorm rate of the hybrid Cymbidium Lucky Gloria × Cymbidium Lovely Moon Crescent (LLC) has long been a detriment to its propagation. In this paper, we describe the thorough research about the effects of calcium ion concentration on the protocorm differentiation for Cymbidium hybrid LLC in vitro through 4 levels of Ca2+ concentration in MS medium based on the trial test including medium experiment with different calcium concentrations and the use of calcium inhibitor La3+. Our studies revealed that Ca2+ played a key role in protocorm differentiation of LLC, which was against the generally accepted idea about the function of 6-benzyl aminopurine (6-BA) and indole-3-butyric acid (IBA) in hybrid cymbidium protorcorm differentiation in vitro. The Chain reaction constituted by cytokinin, calcium, and auxin is submitted to exloringly explain the function mechanism of Ca2+.

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475-479

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August 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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