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KMID : 0364819670050020097
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Korean Journal of Microbiology
1967 Volume.5 No. 2 p.97 ~ p.101
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Studies on plant Tumor induction (III); Antimicrobial action of some bacteriacidal agents to obtain Bacteria-free tumor tissue
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Abstract
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Up to the present time, there are only three methods by which we can obtain bacteria free crown gall tissue. According to some papers related to this field, the first method is based on the works of Braun(53’) who maintained infected plants at 46-47’c for several days. But the method has a problem that very few plants can tolerate this temperature. The second method is based on the well known observation that old tumors appear to be bacteria free at least 1 or 2% of the explants. Also this method is known to us as laborious and time consuming. The third method is the one we were using that was attempting to kill the bacteria with bacteriacidal agent such as Antibiotics. In fact, it is reported that almost complete control of crown gall of tomato was obtained by Blanchard(’51) when plants were grown in a nutrient containing Aureomycin(20㎍/㎖) following needle puncture with the gall bacteria. We have been engaged in making the experiment by applying solution of Penicillin, Streptomycin and of Chloramphenicol(Succinate free) to find the strong bacteriacidal agent through the method of disc plate, and to confirm the effect of antimicrobial action through the method of plant tissue culture system without possible injury to the host plant. The result of this report is the fact the strongest bacteriacidal agent among the above three Antibiotics was Chloramphenicol(Succinate free 1000 p.p.m). and that there happened no injury to the tissue cultures in a White’s 10X media containing 1000 p.p.m. of Chloramphenicol.
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