Abstract
An efficient micropropagation protocol was established for Cryptocoryne wendtii and Cryptocoryne becketti using shoot tips explants. Multiple shoots were induced from shoot tip explants of both species cultured on agar-gelled as well as liquid MS medium supplemented with 0.5 mg/L BA and 0.2 mg/L IBA (proliferation medium). The multiple shoots of both the species formed on agar-gelled as well as liquid medium were vigorously growing with well-developed roots and leaves after 4 weeks of culture. Highest number of multiple shoots was obtained from shoot tip explants of both the species cultured in liquid proliferation medium after 4 weeks of culture. The shoot tip explants of C. wendtii and C. becketti, that were cultured in liquid proliferation medium (2 weeks) followed by culturing on agar-gelled proliferation medium (2 weeks) also produced the multiple shoots. Shoot tips cultured on agar-gelled medium produced the least number of multiple shoots after 4 weeks of culture. Histological study did not show any abnormalities in the leaves of in vitro plantlets of both the species, cultured in agar-gelled and liquid proliferation medium. The leaves of the in vitro plantlets formed normal mesophyll cells and vascular bundles. More than 95% of the acclimatized plantlets grew vigorously without any morphological abnormalities.
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Abbreviations
- MS:
-
Murashige and Skoog medium
- BA:
-
6-Benzyladenine
- IBA:
-
3-Indole butyric acid
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Communicated by E. Lojkowska.
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Stanly, C., Bhatt, A. & Keng, C.L. An efficient in vitro plantlet regeneration of Cryptocoryne wendtii and Cryptocoryne becketti through shoot tip culture. Acta Physiol Plant 33, 619–624 (2011). https://doi.org/10.1007/s11738-010-0541-7
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DOI: https://doi.org/10.1007/s11738-010-0541-7