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Bacteria - Living Material
Live specimens are used for a wide variety of studies including studying the physiological effects of drugs on a specimen’s heartbeat and temperature on metabolism, the locomotion of microscopic organisms, and studying plant respiration, photosynthesis, plosmolysis, and more. Algal cultures form colonies of cells that are extremely easy to visualize for better understanding of cell walls and plastids, and many live specimens reproduce rapidly for quick turnover between successive tests.
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Ward's® Hemolysis Set
Hemolysis, the rupture of red blood cells, is induced by certain species of streptococcal bacteria that produce extracellular hemolysin. Observe this phenomenon with this set of 3 non-pathogenic species
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Ward's® Live Escherichia coli, Lactose Negative Culture
Escherichia coli - Lactose neg
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Ward's® Live Staphylococcus saprophyticus Culture
Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive).
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Ward's® Live Neisseria flava Culture
Isolated from human nasopharynx. Presumably not related to N. sicca; some relation to N. gonorrhoeae. Often agglutinates in saline.
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Ward's® Live Streptococcus viridians Culture - PATHOGEN
Isolated from human saliva, sputum, and intestine. No Lancefield group shown, alpha hemolysis.
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Ward's® Moraxella catarrhalis
Normal flora of respiratory tract. Beta-lactamase positive. Also known by the name Branhamella catarrhalis
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Ward's® Live Staphylococcus aureus Coagulase-Negative Culture (Pathogenic)
This yellow, shiny organism is known to cause wound infections and more famously, toxic shock syndrome.
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Ward's® Live Serratia marcescens D1 Culture
This organism is commonly isolated from soil, and depending upon the temperature of its environment, can produce a distinctive red pigment.
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Ward's® Live Escherichia coli JM101 (Host) Culture
E. coli with JM101 can be transformed with pUC8 plasmid to become resistant to Ampicillin and to metabolize lactose