In vitro asymbiotic germination for micropropagation of the recalcitrant terrestrial orchid Chloraea crispa (Orchidaceae)

顽固性地生兰花 Chloraea crispa(兰科)的体外非共生萌发微繁殖

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作者:Karla Quiroz, Jessica Saavedra, Hermine Vogel, Gabriela Verdugo, Peter D S Caligari, Rolando García-Gonzáles

Discussion

For the first time, asymbiotic culture of this species using biotechnology tools has been developed. Plantlets developed very well under in vitro conditions, allowing the possibility to propagate and store genetic material for conservation and domestication purposes.

Methods

The current study evaluated the effect of the culture medium on the asymbiotic germination of C. crispa seeds, as well as the effects of the plant growth regulators 6-benzylaminopurine and indole-3-butyric acid. Different light regimes were also studied.

Results

A significant effect was observed for the interaction between culture media and light regime on the morphogenic response of the seeds. The highest rate of embryonic germination was obtained in Van Waes medium supplemented with 0.1 mg·L-1 of 6-benzylaminopurine.

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