Webthat some of these corynebacteriophages lost their activity relatively rapidly when held at 4° C. as liquid bacteria-free filtrates of lysed bacterial cultures. Considerable loss of titre also occurred when such filtrates were distributed in 0-25 ml. amounts in sealed glass ampoules an —d store 25° C. Howeverd at , no loss of activity WebWe found that infection by any of the three closely related corynebacteriophages may give rise to single, double, and triple lysogens. In the case of toxigenic C. diphtheriae strains C7s(beta tox+) and C7s(omega tox+), the final yields of diphtheria toxin produced under optimal conditions were equivalent and varied by one-, two-, or threefold ...
Restriction map of corynebacteriophages beta c and beta vir and ...
WebJun 21, 1998 · STRUCTURE OF APO-AND HOLO-DIPHTHERIA TOXIN REPRESSOR. The diphtheria toxin repressor (DtxR) from Corynebacterium diphtheriae is a divalent metal-activated repressor of chromosomal genes that encode proteins responsible for siderophore-mediated iron uptake and also of the gene of certain corynebacteriophages that … WebMay 15, 2009 · A method of freeze-drying is described by which the activity of a series of corynebacteriophages was maintained over a test period of 30 months, whereas some … cin stand for medical
Pathogens Free Full-Text New Corynebacterium Species with the ...
WebJul 22, 2015 · Corynebacterium diphtheriae is the etiological agent of diphtheria, an upper respiratory disease mainly affecting children. The virulence factors (most specifically diphtheria toxin) have been studied … WebOct 1, 1978 · Corynebacteriophages beta and gamma are closely related but heteroimmune; hence, gamma reproduces in C7(beta). A series of gamma mutants, designated gamma-bin (beta-inhibited), has been isolated. They reproduce in only 2 to 14% of infected C7(beta) cells, and, as a result, plaque with an efficiency of 10(-4) to 10(-5) on … WebFeb 18, 2024 · The goal is both to kill the organism and to terminate toxin production. Many antibiotics are effective, including penicillin, erythromycin, clindamycin, rifampin, and tetracycline; erythromycin or penicillin is the … dialight sustainability report