Sagar Aryal
Sagar Aryal is a microbiologist and a scientific blogger. He is doing his Ph.D. at the Central Department of Microbiology, Tribhuvan University, Kathmandu, Nepal. He was awarded the DAAD Research Grant to conduct part of his Ph.D. research work for two years (2019-2021) at Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Saarbrucken, Germany. Sagar is interested in research on actinobacteria, myxobacteria, and natural products. He is the Research Head of the Department of Natural Products, Kathmandu Research Institute for Biological Sciences (KRIBS), Lalitpur, Nepal. Sagar has more than ten years of experience in blogging, content writing, and SEO. Sagar was awarded the SfAM Communications Award 2015: Professional Communicator Category from the Society for Applied Microbiology (Now: Applied Microbiology International), Cambridge, United Kingdom (UK). Sagar is also the ASM Young Ambassador to Nepal for the American Society for Microbiology since 2023 onwards.
Isn’t glucose test for Pseudomonas aeruginosa negative, because it is glucose non fermenter ?
Sorry for the mistake and thanks for the correction. Yes, it should be glucose negative (-ve) for Pseudomonas aeruginosa.
What is the definitive for Pseudomonas aeruginosa?
I did biochemical tests on several bacterial isolates and had different results. but after identifying the type of bacteria, the bacteria is Pseudomonas aeruginosa. Why do these bacteria have different biochemical tests even though they are one type of bacteria?
I have found from multiple sources that this is encapsulated. Is this true?
Ya, there are some sources that say that they are encapsulated. So, we can say they are both capsulated and non-capsulated. They secrete a capsule-like polysaccharide called alginate according to Sumita Jain and Dennis E. Ohman 2005)
Thanks for finally writing about >Biochemical Test of Pseudomonas
aeruginosa – Microbiology Notes <Loved it!
In my Pseudomonas is unable to ferment sugars especially glucose. Please reply
Pseudomonas is glucose positive, means it ferments glucose.
Pseudomonas is glucose-non-fermenting. It is only able to oxidase glucose in aerobic conditions.
Isn’t Pseudomonas non-fermentative and oxidative in nature?
Yes…the tube is open it would be positive because it oxidizes glucose not ferment