I recently received the following question on cat health from a visitor to my website: My cat has a slight watery discharge from her right eye and it sometimes âcatchesâ dirt as it slides down her nose. I was just wondering if she has an upper respiratory infection and if so, what can I do â¦
The endospore stain is a differential stain used to visualize bacterial endospores. Endospores are formed by a few genera of bacteria, such as Bacillus.By forming spores, bacteria can survive in hostile conditions. Spores are resistant to heat, dessication, chemicals, and radiation.he endospore stain is a differential stain used to visualize bacterial endospores. Endospores are formed by a few genera of bacteria, such as Bacillus.
The final and third. step is applying a counter stain. A counter stain is used to stain all unstained biological. materials. Counter stains are usually a contrasting color to the primary stain. With the. Gram stain, the primary stain colors the cells violet and the counter stained bacteria are. red. Violet cells are âGram positiveâ because they have reacted to the stain.