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In vitro regeneration patterns of Platycerium bifurcatum leaf cell suspension culture

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Abstract

A simple suspension culture system of Platycerium bifurcatum was developed where sporophytes could be regenerated directly from leaf cells or indirectly through an aposporous gametophyte stage under the same culture conditions. Single cells and aggregates of up to 100 cells developed aposporous gametophytes which later gave rise to sporophytes. Such gametophytes started apogamy when they were mostly less than 0.7 mm in length, bearing only rhizoids. In most cases, only one sporophyte was regenerated from one gametophyte. Aggregates of 500–1000 or more cells, on the other hand, regenerated sporophytes directly. Intercellular interaction was considered to be the physiological cause, and the separation of leaf cells to a certain degree drove the cells to embark on different regeneration paths. It is suggested that the possible existence of a threshold size of cell aggregates separates the two regeneration patterns.

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Received: 3 March 1997 / Revision received: 11 April 1997 / Accepted: 3 June 1997

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Teng, WL., Teng, MC. In vitro regeneration patterns of Platycerium bifurcatum leaf cell suspension culture. Plant Cell Reports 16, 820–824 (1997). https://doi.org/10.1007/s002990050327

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  • DOI: https://doi.org/10.1007/s002990050327

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