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한국산 물두꺼비(Bufo stejnegeri : 무미목 , 두꺼비과)염색체의 인형성부위에 대한 개체간 및 개체내 변이
이혜영,박창신 한국유전학회 1989 Genes & Genomics Vol.11 No.3
The distribution of the nucleolus organizer regions (NORs) on the chromosomes of 10 individuals of Bufo stejnegeri (Anura, Bufonidae) was investigated by conventional and NORs-staining analysis. 1. Seven individuals exhibit one pair of NORs on the long arm of the chromosome pair 6 (standard form). 2. The one individual had a pericentric inversion on chromosome bearing NORs, whereby a large part of the NORs translocated in an telomeric position on the short arm. Therefore, a trace of original NORs remained an original terminal position on the long arm. Only one of the largest homologues had additional small NORs in the interstitial region of short arm. The possible explanation is the mechanism of translocation and segmentation (or fragmentation) in the NORs cluster (varied form I). 3. The two individuals exhibit inter- and intraindividual variation in number, position and size of the NORs. The mechanisms of these variation were explained by translocation and segmentation (or fragmentation) of NORs (varied form II).
Zr(IV) Complex와 항미생물제를 이용한 셀롤로오스의 항미생물 가공 (III)
이혜영,고석원 한국섬유공학회 1992 한국섬유공학회지 Vol.29 No.3
Cotton fabrics having antimicrobial activity were prepared by two-bath batch process treated successively with zirconyl chloride buffer solution of pH 7 and a solution of the antimic-robial agent, tetracycline hydrochloride or kanamycin sulfate. The reactivity of kanamycin with cotton fabrics containing zirconium is higher than that of tetracycline. And in both cases of tetracycline and kanamycin, the antimicrobial activity of fabrics follows the controlled-release mechanism against Klebsiella pneumoniae. Antimicrobial activity imparted by kanamycin was initially extremely high but was less durable to laundering than tetracycline.