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High frequency early in vitro flowering of Dendrobium Madame Thong-In (Orchidaceae).

Plant cell reports (2006-10-07)
Guek Eng Sim, Chiang Shiong Loh, Chong Jin Goh
ZUSAMMENFASSUNG

We have successfully developed a method to induce early in vitro flowering of the self-pollinated seedlings of a tropical orchid hybrid, Dendrobium Madame Thong-In. Transition of vegetative shoot apical meristem to inflorescence meristem was observed when young protocorms were cultured in modified KC liquid medium. In contrast, protocorms cultured on Gelrite-solidified medium only produced axillary shoots and roots. CW was required to trigger the transitional shoot apical meristem and BA enhanced inflorescence stalk initiation and flower bud formation. However, normal flower development was deformed in liquid medium but developed fully upon transferring to two-layered (liquid over Gelrite-solidified) medium. Under optimal condition, in vitro flowering was observed about 5 months after seed sowing. Segregation of flower colours was observed in these seedlings and seedpods formed upon artificial pollination of the in vitro flowers.

MATERIALIEN
Produktnummer
Marke
Produktbeschreibung

Sigma-Aldrich
Knudson C Modified Orchid Medium, powder, suitable for plant cell culture