0
P. vulgaris is H2S positive because it obtains its energy by oxidizing organic compounds or molecular hydrogen H2 while reducing sulfates to sulfides,especially to hydrogen sulfide.[1] In a sense, they "breathe" sulfate rather than oxygen. Sulfate-reducing bacteria can be traced back to 3 billion years ago and are considered to be among the oldest forms of bacteria.Many bacteria reduce small amounts of sulfates in order to synthesize sulfur-containing cell components; this is known as assimilatory sulfate reduction. By contrast, the sulfate-reducing bacteria reduce sulfate in large amounts to obtain energy and expel the resulting sulfides as waste; this is known as dissimilatory sulfate reduction. They are anaerobes which use sulfate as the terminal electron acceptor of their electron transport chain.Most sulfate-reducing bacteria can also reduce other oxidized inorganic sulfur compounds, such as sulfite, thiosulfate, or elemental sulfur (see sulfur-reducing bacteria
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is the characteristics of a fair test?
i dont know lolo ka pla ei.. :P
What is the unit of measure for a test tube?
200m long.
What is the scientic method?
Recognize the problem observe and infer Form a Hypothesis test your hypothesis plan your experiment do the experiment analyze your data draw conclusions Communicate That's all Chloe P
What charge builds up in the intermembrane space?
According to a paper, the pH is 6.88 +/- 0.09.Source: Porcelli, A. M., Ghelli, A., Zanna, C., Pinton, P., Rizzuto, R., & Rugolo, M. (2005). pH difference across the outer mitochondrial membrane measured with a green fluorescent protein mutant. Biochemical and biophysical research communications, 326(4), 799-804.
What are facts about the line of reflection?
Given a line L and a point P. Reflection P' of P in L is the point such that PP' is perpendicular to L, and PM = MP', where M is the point of intersection of PP' and L. In other words, P' is located on the other side of L, but at the same distance from L as P. P' is said to be a mirror or symmetric image of P in L. The line L is called the axis of symmetry or axis of reflection.P' exists for any P. Let's write SL(P) = P'. If P' = SL(P), then P is the reflection in L of P':P = SL(P'). So that repeated reflection does noting: it does not move a point. Formally,SL2 = I,Where I is the identity transform. SL(P) = P, iff P lies on L.The reflection transform SL applies to arbitrary shapes point-by-point. Each point of a given shape S is reflected in L, and the collection of these reflections is the symmetric image of S: SL(S). To determine SL(S) when S is a polygon, suffice it to reflect its vertices. This is exactly what has been done in the applet below.On the other hand, if S' is known to be a mirror image of S, then any pair of points P and P' not fixed by the reflection (P ≠ P'), the axes of reflection is uniquely determined as the perpendicular bisector of PP'.In the applet, you can create polygons with a desired number of vertices, drag the vertices one at a time, or drag the polygon as a whole. Axes of reflection can also be dragged. They rotate if dragged near the applet's border, or translate if dragged nearer their midpoint.
Most recent research on P vulgaris?
what is the most recent research there is on P. vulgaris?
Is proteus vulgaris arabinose negative?
No. The arabinose medium should stay red if incubated with P. aeruginosa, not turn yellow indicating arabinose positive.
Does proteus mirabilis ferment lactose?
No.----------------------------------------------------------Disagree. You'll find a positive sucrose fermentation test for P. vulgaris at MicrobeLibrary.org. The site is an affiliate of the American Society of Microbiology, so I'm guessing it's a safe bet.
Is P vulgaris a lactose fermenter?
No Proteus Vulgaris does not ferment lactose
Can you test positive for p c p from second hand smoke?
yes
What test will differentiate between Proteus vulgaris and Pseudomonas aeruginosa?
This is a bit tricky. Both Proteus vulgaris and Pseudomonas aeruginosa are Gram-negative and rod-shaped. According to Bergey's Manual of Systematic Bacteriology, Proteus vulgaris tests positive for sulfur reduction, urease production, tryptophan deaminase production, and indole production. Pseudomonas aeruginosa reduces sulfur and nitrate, and has a characteristic green color. The API 20E Identification System is a test strip that can be used to identify Proteus vulgaris versus other bacteria.An even easier way to test this is the gelatinase test.Or, slant the bacteria on a Triple Sugar Iron slant or place them in a SIM agar deep. P. vulgaris tests positive for Hydrogen Sulfide production, changing the media to a black color around the organism, while P. aeruginosa does not produce Hydrogen Sulfide.
Could an organism be both MR and V-P positive?
An organism can not test positive for both an MR test and a V - P test. The MR test is an abbreviation for Methyl Red and it tests for E coli The V - P is an abbreviation for Vogue Proskauer and it tests for enterobacter and klebsiella.
What does a positive presence-absence test indicate?
The Presence-Absence (P-A) test is a presumptive detection for coliforms.
What is the probability of testing positive for the disease?
The probability isP(you have the disease)*P(the test shows positive when testing someone with the disease) +P(you don't have the disease)*P(the test shows positive when testing someone without the disease).The second category is particularly important if the disease is rare but the probability of a type II error is large.
Urine culture that shows bacteria that starts with a p?
How about Proteus ... vulgaris, penneri, or mirabilis?
Does Klebsiella pneumoniae digest casein?
P. vulgaris does digest casein. When placed on a casein agar plate, which is opaque, and incubated P. vulgaris will leave a "clear zone" where the casein is being broken down. This proves that protein hydrolysis occurs.
If sim medium was used for motility determination for Proteus vulgaris what noticeable change to the medium will be observed?
It will turn black in the inoculation stab as well as throughout the medium because P. vulgaris is a flagellated and motile organism.
