Optimization of conditions for cryopreservation of isolated pear meristems in liquid nitrogen.
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Keywords:
Cryopreservation, pear, meristem, cryoprotectant, acclimation,Abstract
The effect of the duration of hardening of test-tube plants and thawing methods on growth recovery of cryopreserved pear meristems was defined. Optimum hardening is 3-4 weeks with varying temperature and irradiance (8 h, at 22°C, with 7 μmol m-2s-1 irradiance, followed 16 h at -1°C without irradiance). The effect of different cryoprotectants on the viability of meristems after freezing in liquid nitrogen was studied. The best cryoprotectant for cryopreservation of isolated pear meristems is IBBR-1 (50% glycerol and 50% glucose). Recovering nutrient medium composition for regeneration in vitro cryopreserved pear meristems was developed.References
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азоте / Турдиев Т.Т., Ковальчук И.Ю.; № гос. регистрации заявки 2010/0734.1 от 02.06.2010.
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Kovalchuk, I. Y., Zhumagulova, Z. B., Madiyeva, G. A., Turdiev Т. Т., & Frolov, S. N. (2015). Optimization of conditions for cryopreservation of isolated pear meristems in liquid nitrogen. Experimental Biology, 60(2), 261–264. Retrieved from https://bb.kaznu.kz/index.php/biology/article/view/949
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BIOTECHNOLOGY
