Comparison of agar and microcrystal cellulose as gelling agents forin vitro culture ofNicotiana tabacum stem expiants |
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Authors: | N Gorinova A Atanasov K Alexandrova R Velkova A Kasachka |
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Institution: | 1. Institute of Genetic Engineering, Agricultural Academy, 2232, Kostinbrod-2, Bulgaria 2. Department of Biotechnology, Institute of Chemical Technology, 1756, Sofia, Bulgaria
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Abstract: | Investigation was made on a use of microcrystal cellulose as a new and inexpensive gelling agent instead of agar. Microcrystal cellulose in concentration 20 % forms a suitable structure of nutrient medium for in vitro cultivation. The higher humidity in the culture container with microcrystal cellulose causes partial vitrification of Nicotiana tabacum L. plants, cv. Zlatna arda. It is proved by reduced chlorophyll content, changes in protein synthesis and strongly reduced isoenzyme spectrum of peroxidase. |
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