Isolation, purification and physicochemical properties of the antibiotic complex YA-56, a family of phleomycin-bleomycin group, are described. The antibiotic YA-56 complex was found to be composed mainly of two active components named YA-56X and Y. These components were clearly differentiated from the reported phleomycins and bleomycins by their physicochemical properties. However, by direct co...

Wei Gong,1,2 Mark A. Faist,2,3 Nicholas John Ekins-Daukes,2 Zheng Xu,1 Donal D. C. Bradley,2 Jenny Nelson,2 and Thomas Kirchartz2,* 1Key Laboratory of Luminescence and Optical Information, Ministry of Education and Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, People’s Republic of China 2Department of Physics and Centre for Plastic Electronics, Imperial C...

A new complex of phleomycin-bleomycin group antibiotics, YA-56, was isolated from the culture broth of a streptomycete designated as strain MCRL 0387 and identified as a new variety of Streptomyces humidus Nakazawaand Shibata in Imamura et al.9 1956. Ultra-violet irradiation of strain MCRL0387 gave a high-yielding mutant which formed blue aerial mycelium instead of the grayish aerial mycelium o...

Decolorization of six synthetic dyes using three sources of fungal laccase with the origin of Aspergillus oryzae, Trametes versicolor, and Paraconiothyrium variabile was investigated. Among them, the enzyme from P. variabile was the most efficient which decolorized bromophenol blue (100%), commassie brilliant blue (91%), panseu-S (56%), Rimazol brilliant blue R (RBBR; 47%), Congo red (18.5%), a...

Normal rabbit serum was found to be cytotoxic for the Walker ~56 tumor cell maintained in tissue culture. XB and HeLa cells were unaffected. Cells exposed to serum could not be serially propagated, displayed degenerative changes of the cytoplasm, and were permeable to t rypan blue. The serum was rendered nontoxic by being heated a t 56 ~ C. for ~0 minutes and by being treated with methods known...

Error in Figure 6 In the published article, there was an error 10 as published. The analytically derived 7 graph plotted orange, and numerically computed blue. correct 8 version is blue, orange.The corrected its caption appear below.The authors apologize for this state that does not change scientific conclusions 11 of article any way. original has been updated.In Equations 31 32 miss differenti...

From May 1993 to April 1995, the seasonal occurrence of metacestodes of Neogryporhynchus cheilancristrotus (Wedl, 1855) (Cyclophyllidea: Dilepididae) in its second intermediate host, the blue bream Abramis ballerus (L.) was studied monthly in the Oder River on the borders of Germany and Poland. Based on the parasite specimens found, detailed data on their morphometrics are presented. The metace...