Ultrastructure of Lycopersicon peruvianum leaf explants and streptomycin-resistant shoots on medium containing streptomycin
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منابع مشابه
Accumulation of 14C-streptomycin by streptomycin-sensitive and streptomycin-resistant group H streptococci.
Three streptomycin-resistant mutants of group H streptococcus, strain Challis, were examined for ability to accumulate (14)C-streptomycin. Although the mutants exhibited different levels of transformation, only the streptomycin-sensitive parent Challis strain accumulated significant amounts of (14)C-streptomycin. It appears that impermeability to streptomycin does not necessarily result in redu...
متن کاملStreptomycin resistant gonorrhoea.
The readiness with which many organisms develop resistance to streptomycin is well recognized; Willcox (1953) ventured to predict that "should streptomycin be widely used for gonorrhoea it is possible that its efficiency may decline". At the Liverpool Royal Infirmary during the past 4 years routine treatment of male patients suffering from gonorrhoea has been by a single injection of streptomyc...
متن کاملAccumulation of streptomycin-phosphate in cultures of streptomycin producers grown on a high-phosphate medium.
A phosphorylated derivative of streptomycin accumulated in cultures of Streptomyces griseus ATCC 12475 and SC2376 grown on complex media containing an excess of inorganic phosphate (0.01 m). This compound did not accumulate significantly in the absence of added inorganic phosphate. The phosphorylated derivative did not inhibit growth of Bacillus subtilis or support growth of a streptomycin-depe...
متن کاملOptimized preparation and evaluation of 99mTc-Streptomycin
Introduction: The endemic occurrence of new strains of tuberculosis around the globe has initiated new research on developing diagnostic radiopharmaceutical based on antibiotics. Methods:Tc-99m labeled streptomycin was prepared using freshly milked 99mTcO4- and various concentrations of streptomycin, stannous chloride at various temperatures in high yield radio...
متن کاملDevelopment of auxotrophy by streptomycin-resistant mutation.
Several streptomycin-resistant mutants of Escherichia coli have been isolated which require exogenous isoleucine for growth. The majority of these strains were of streptomycin-dependent phenotype. If grown in the absence of streptomycin, these streptomycin-dependent auxotrophs (Sm(d-aux)) strains were unable to produce beta-galactosidase and aldolase activities and also failed to exhibit donor ...
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ژورنال
عنوان ژورنال: Plant Cell, Tissue and Organ Culture
سال: 1993
ISSN: 0167-6857,1573-5044
DOI: 10.1007/bf00036091