Possible to identify Enterobacteriaceae through morphology alone?
962925
If by morphology you mean "Gram-negative rod" then you'd get false positives.  All enterobacteriaceae are Gram-negative rods, but not all Gram-negative rods are enterobacteriaceae.\n\nColony morphology won't necessarily help a lot, either, as I don't think that there is a consistant enteric colony shape.
689653
amoeba\nand i think cynobacteria \neuglena might be not, but im not sure
583500
All animals can carry bacteria, so this could be possible, but the doctors should be able to detect this.  Best of luck.
677726
Yes. The singular is bacterium
253962
It is eubacteria. I just studied that.
195632
it looks like Sarcina aurantiaca was a nomenclatural synonym since the name isn't used anymore and isn't listed on NCBI's taxbrowser under the Sarcina genus.  there was one strain deposited at ATCC originally as Sarcina aurantiaca but is now listed as a Staph epidermis.  and since mannitol salt agar was designed for enrichment of Staph there's a good chance it will grow.
288876
Yes. They are probably microbes or even smaller nanobacteria. \n\nI have seen the work of Dr. Robert Folk at the University of Texas, who examined the Martian meteorites found in Antarctica and found possible fossil evidence of nanobacteria. Many biologists are not convinced that nanobacteria (which are measured in nanometers) even exist and argue that they are too small to contain the functions of a living cell. The topic remains controversial.   \nHere is a page discussing the biological controversy (there are some geological controversies as well):\nhttp://serc.carleton.edu/microbelife/topics/nanobes/index.html\n\nHere is the NASA page describing the findings:\nhttp://nssdc.gsfc.nasa.gov/planetary/marslife.html
932650
First, you would need to break down the dna of the plasmid. One way this could be achieved, is using the rapids-method, used in many food microbiology labs, throughout the industry.\n\nAssuming, for the moment, that the glo gene is similar to ecoli; one can test for its presence by streaking a sample of it onto a petri dish (EMB Agar) and then incubate at 35 degrees Celcius for 24 hours. If the sample reflects positive results, colonies of metallic-green specimens would be present.
701203
macroscopic. you "farm out" the bacteria on a agar plate, then describe what grows (usually after 48 hours, but can both be more or less- depending on the species)\nNote: there are VERY many possible culture media (usually Agar based), and some bacteria will grow only on a few of them- that helps with the ID\nAlso- some bacteria need special culture conditions- eg. anaerobes- which die if they are cultured in contact with air. Also helps with the ID.\n\nMicroscopic. First of all look at the bacteria under a microscope- that gives you some info.- eg are they round (cocci) or elongated (bacili) or curved (vibrio) or spiral, or any of a multitude of shapes.\nsome bacteria are transparent and can only be seen in a "dark field" (reflected light from bacteria seen on an otherwise unlighted space) typical for Treponema pallidum- causes syphilis.\n\nThen the bacteria can be stained- very many possible stains and methods- but the most commonly known is the Gram stain (hence some bacteria are called "Gram positive" or Gram negative" - depending if the stain "caught" on the cell wall.\nSome stains are then removed with acid preparations- and in some bacteria it works, in others not. eg. the TB bacteria are known as "acid fast"- meaning an acid bath does not remove the colour of the original stain\n\nEssentially you are supposed to go through all the steps and look up in a book what fits your particular bug.\nThe bug can also be a fungus- yeast or mould
1048565
all three....\nwhy?\nat a distance with LPO you can see the shape of the bacterial clusters. which help you determine if they are strep or staph or whatever.\nThe HPO helps you determine surface characteristics and organelle morph, Oil immersion can help you determine vacuole contents, phagocitic inclusions, etc.... all 3 work together.
861457
Those answsers are wrong. It is a bacteria that lives on an aphid. Here is the link to prove it:\n\nhttp://phylogenomics.blogspot.com/2006/10/worlds-smallest-genome-of-cellular.html
159535
you can go on the internet and plug in the search bar "Kingdom Protista" or "phylums of protista.
607530
Uhhh.... isn't bacteria a single-cell organism?\nPlease be more specific.
931578
If you didn't have to physically show it, the best way would be introducing a virus into the bacteria and force it to transplant some of its own genetic material into the bacteria. (Cancer Cells)
137003
Some unstained cell structures are hard to tell from other similar cell parts unless you ues a differential stain.\nA differential stain can be made in 2 steps.\nFirst step blue, stains one part\nSecond step red, stains the other.\nThis can also be helpful if a suspect bacteria does or does not take up a stain. This can help to identify a bacteria.\nMedical clinics do this all the time in cbc's (complete blood count), and throat smear analysis.
116081
OK.  I've searched all of my micro stuff and I can't find mention of a PCR anywhere.  You'd figure someone who could answer this question would know what a PCR was, but not this someone.\n\nAll I can say is that for years people relied on bacterial morphology (Spherical, Rods, Curved, Clusters, Chains, etc. . .), grams stain characteristics (+ or -), colony morphology, atmospheric growing conditions (O2, no O2, increased CO2), nutritional requirements, and biochemical tests (Peroxidase, Indole, Oxidase) to differentiate different species of bacteria from each other.\n\nI hope this is what you're looking for.
1096752
Try \nhttp://www.cipe.org/publications/fs/ert/e24/Agarwe24.htm