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Agar

Agar

(Science: cell culture, chemical, microbiology) this gelatinous material, an extract from red algae (mainly Gelidium and Gracilaria species), is most frequently used as a culture medium, especially for bacteria. It is also used as a thickener in foods, but humans cannot digest it. Any culture medium that uses agar as the gelling agent.A colloidal extract of algae; used especially in culture media and as a gelling agent in foods.Agar is a biological substance obtained from marine algae and has many properties which make it a valuable tool to scientists in scientific experiments.


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Needing help identifying uknowns for micro lab

... negative hydrolysis Amylase negative pos TSI yby ry Gas pos negative H2S pos negative glucose fermented fermented urea negative negative EMB agar citrate pos negative on EMB agar- I have a picture I could send but 7A looked kind of purplish and pretty much stayed where I put it, was circular. ...

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by avon7774
Wed Jul 29, 2009 10:35 pm
 
Forum: Microbiology
Topic: Needing help identifying uknowns for micro lab
Replies: 1
Views: 99

Fungus (yeast ?) - help to identify

Please, help me to identify this fungus. It is growth on Sabouraud dextrose agar and it is isolated from the ear of my cat. Thank you very much ! There are the images from my microscope : http://www.snimka.bg/album.php?album_id=401219

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by jimilota
Thu Jul 23, 2009 1:19 pm
 
Forum: Microbiology
Topic: Fungus (yeast ?) - help to identify
Replies: 3
Views: 167

lots of questions of various topics........

... that of C3 plants, allowing them to photosynthesize efficiently with their stomata partly closed 4.Two microbes have been grown together in single agar plate.The first microbe has suppress the growth of the second microbe. The first microbe is producing a seconding metabolite, which is, a)unsafe ...

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by scholesmu
Thu Jun 11, 2009 3:25 am
 
Forum: General Discussion
Topic: lots of questions of various topics........
Replies: 3
Views: 114

my unknown

... in your lab? S. aureus will be coagulase (+), S. epidermidis and others will be coagulase (-). You may have access to TGA (Tellurite-Glycine Agar) plates, which differentiate coagulase + (black pigmented colonies) and coagulase - (grayish, or white)although it's certainly not perfect. By ...

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by gakerty
Wed May 13, 2009 5:22 pm
 
Forum: Microbiology
Topic: my unknown
Replies: 2
Views: 377

Pseudomonas aeruginosa on different agar

does anyone know if Pseudomonas aeruginosa growns better on Tryptone Soy Agar campared to Nutrient agar? does the different agars affect the amout that Pseudomonas aeruginosa will grow in 24 hours? Help or links ASAP will be greatly appreciated

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by ShadowMOUSE
Sun May 03, 2009 3:15 pm
 
Forum: Microbiology
Topic: Pseudomonas aeruginosa on different agar
Replies: 0
Views: 321
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