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Xylose lysine deoxycholate agar (XLD agar) is a selective growth medium used in the isolation of Salmonella and Shigella species from clinical samples and from food. [ 1 ] [ 2 ] The agar was developed by Welton Taylor in 1965. [ 3 ]
As there are many bacteria that also look like Salmonella on DCA, it is widely recommended that more selective agars are used for the identification of Salmonella, namely xylose lysine deoxycholate (XLD) agar. This growth medium is heat-sensitive and should be poured and cooled as soon as possible after addition of the deoxycholate, otherwise ...
Welton Ivan Taylor (November 12, 1919 – November 1, 2012) was an American microbiologist, inventor and civil rights activist.He is known for his work on food-borne pathogens, notably for developing tests for Salmonella and for inventing the XLD (Xylose Lysine Deoxycholate) agar, which can be used to isolate Salmonella and Shigella bacteria.
Xylose-lysine-deoxycholate agar is used for the culture of stool samples and contains two indicators. It is formulated to inhibit Gram-positive bacteria, while the growth of Gram-negative bacilli is encouraged. The colonies of lactose fermenters appear yellow.
XLT Agar (Xylose Lysine Tergitol-4) is a selective culture medium for the isolation and identification of salmonellae from food and environmental samples. It is similar to XLD agar ; however, the agar is supplemented with the surfactant, Tergitol 4 , which causes inhibition of Proteus spp. and other non-Salmonellae. [ 1 ]
Xylose lysine deoxycholate or XLD agar, a growth medium for bacterial cultures; The XLD connector, a keyed variant of the XLR connector; An old Microsoft Excel file ...
Live election results and related data for Senate, House and governor's races Senate Outlook 2014 Forecasts for 2014’s Senate races, based on HuffPost Pollster’s poll-tracking model
An agar plate – an example of a bacterial growth medium*: Specifically, it is a streak plate; the orange lines and dots are formed by bacterial colonies.. A growth medium or culture medium is a solid, liquid, or semi-solid designed to support the growth of a population of microorganisms or cells via the process of cell proliferation [1] or small plants like the moss Physcomitrella patens. [2]