Abstract
An effective pistachio (Pistacia vera L.) micropropagation system was developed involving rapid axillary bud proliferation and ex vitro rooting. The highest shoot proliferation frequency was obtained from nodal explants cultured on Murashige and Skoog (MS) basal salts containing Gamborg (B5) vitamins and supplemented with 4 mg l−1 6-benzyladenine (BA). The addition of 2 mg l−1 meta-topolin (mT) generated an optimal number of shoots with suitable morphological features, while kinetin (KIN) was found to be unsuitable for pistachio shoot proliferation. Microcuttings were rooted ex vitro after being dipped in rooting powder. The peak ex vitro rooting response was achieved after shoot explants were treated with Rhizopon® 2% indole-3-butyric acid (IBA). Rooted plantlets were transplanted in plastic pots containing a peat–perlite–vermiculite (1:1:1) mixture and then transferred to the greenhouse. After 2 months, 81.5% survival of rooted microshoots was achieved.
Abbreviations
- BA:
-
6-Benzyladenine
- B5:
-
Medium described by Gamborg et al. (1968)
- IBA:
-
Indole-3-butyric acid
- KIN:
-
Kinetin
- mT:
-
meta-Topolin
- MS:
-
Murashige and Skoog medium (1962)
- NAA:
-
Naphthaleneacetic acid
- PGR:
-
Plant growth regulator
- SE:
-
Standard error
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Acknowledgments
This research benefitted from the support of the Ministry of Higher Education and Scientific Research (Algeria) and a grant from the Centre National des Oeuvres Universitaires et Sociales (CNOUS-France) for B. Benmahioul.
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Benmahioul, B., Dorion, N., Kaid-Harche, M. et al. Micropropagation and ex vitro rooting of pistachio (Pistacia vera L.). Plant Cell Tiss Organ Cult 108, 353–358 (2012). https://doi.org/10.1007/s11240-011-0040-6
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DOI: https://doi.org/10.1007/s11240-011-0040-6