BACKGROUND Laboratory diagnosis of tuberculosis has undergone a rapid change during last few years and a number of techniques for culture as well as molecular diagnosis have been used with their respective advantages and disadvantages. Sporadic studies have also reported the isolation of M. tuberculosis on standard blood agar (BA), which at one time was not considered as a suitable medium for m...

effects of culture medium containing hormonal compositions on phenotypic and chromosomal variations of sugarbeet cultured tissues were examined. experiments were carried out in different nacl levels. cytological studies were conducted on calli originated from suspension culture. hypocotyl of seven day old seedlings of the two diploid lines were cultured in ms medium containing hormonal composit...

probiotics are defined as living microorganisms with beneficial effects on the host. probiotics, according to the least negative effect on the body, are considered as a good alternative to chemical drugs. lactobacillus acidophilus is used as a probiotic that is able to reduce cholesterol level in the blood. the effect of various concentrations of carbon, nitrogen and phosphorus for enhancing th...