Anaerobic bacteria
Anaerobic bacteria are those bacteria that cannot survive in the presence of oxygen
Anaerobic bacteria are those bacteria that cannot survive in the presence of oxygen
Chemotaxis is the process by which the bacteria respond to chemical gradients. Chemo means chemical and taxis means to move. It is the movement in which the bacteria and somatic cell move according to chemical gradients present in the environment.
Enteric bacteria are those bacteria that are present in the intestine. They belong to family Enterobacteriacea. They are gram negative rods, oxidase positive, catalase positive, non-spore former, can grow in the presence of bile salts, they are facultative anaerobes.
Bacteria grow in their optimal conditions. They need optimal temperature and pH to grow. When these conditions change, bacteria are unable to grow and divide....
Tonsillitis simply means inflammation of the tonsils due to an infection. When it’s “bacterial tonsillitis,” the infection is caused by bacteria rather than a...
It an instrument which is used to measure optical density (O.D), concentration by using light, to determine conc. of solute in a solution
!150W tungsten bulbs in laboratory...
Gram-negative bacteria have different cell wall than Gram positive bacteria. Because of the change in cell wall stricture, the bacteria are classified as gram...
Imagine if plants could pull fertilizer straight out of thin air. In a sense, that’s exactly what nitrogen-fixing bacteria do. The air around us is nearly 80%...
These are the group of anaerobic bacteria that are capable of photosynthesis. They may be Microaerophillic bacteria. These bacteria are divided into two groups i.e. the Chromatiaceae and the Ectothiorhodospiraceae. They are different in their internal membranes structure and presence of extracellular or intracellular sulfur granules.
Bacteria don’t have chloroplast. They are unicellular single-celled organisms. Their cells are prokaryotic in nature. The cells don’t have membrane-bound...
Why Temperature Precision Matters For E. coli, a ±1 °C deviation from 37 °C can change doubling time by 18% ASM, 2024. Thermostatic incubators maintain ±0.2 °C...
Why Laminar Flow Matters in Compounding Pharmacies The U.S. Pharmacopeia USP requires ISO Class 5 air for sterile compounding. Laminar flow hoods achieve this...
!Analytical balance...
Our world’s soil teems with unseen partners that quietly nourish plants without any help from fertilizers. In back yards and sprawling fields, these microbes...
The science in which the bacteria are classified is called bacterial taxonomy. The taxonomy is the combination of two words that is taxis means arrangement and nomos means to distribute or govern. This bacterial taxonomy refers to the three disciplines that are Classification Nomenclature Identification
!Thermostatic incubator in microbiology...
Ever notice that your bacterial vaginosis symptoms seem to get worse after sex or during certain times of your cycle? You’re not imagining it. BV symptoms can...
Centrifuge machine separates molecule on the basis of size and density. If size decrease it required high centrifugation The method in which we increase gravity by increasing rotation the increase in the centrifugal force
If you’ve ever had a bacterial infection and looked at a lab report, you might have seen the terms Gram-positive or Gram-negative bacteria. You also may have...
There’s a lot going on behind the scenes of everyday life. While we go about eating, working, or scrolling through our phones, microorganisms are busy doing...
Peptidoglycan is the monomeric form of carbohydrate that is found in bacteria only. This peptidoglycan is the polymers of sugar and amino acids. The sugar...
!Metal chamber pipe in microbiology...
Why Microbiology Matters in Oilfields Microbial activity can sour reservoirs, corrode pipelines, and reduce production efficiency. Understanding and...
These bacteria grow in anaerobic conditions. They can’t use oxygen as electron terminal acceptor. They reduce inorganic sulfate into hydrogen sulfide. Sulfur accepts the electron from ETC. Some microbes assimilate sulfur to fulfil their sulfur requirement. They may use organic sulfur to fulfil their requirement.
Atypical bacteria are those bacteria that don’t stain with the staining as they don’t contain cell wall. These are microscopic organisms, are prokaryotic and can be observed through a microscope. Examples: Chlamydiaceae, Mycoplasmataceae
Why Use a Large Vacuum Chamber in Microbiology? Vacuum chambers allow researchers to simulate low‑pressure environments, remove dissolved gases, and accelerate...
Bacteria need the optimal condition for their growth. Bacteria grow best at optimum temperature, optimum pH and optimum redox reaction. Bacteria grow best at neutral pH. There are three types of classification on the basis of pH. Neutrophiles Acidophiles Basidophiles.
!Students studying...
Cooking food isn’t just about making it taste good - it’s also our frontline defense against harmful bacteria. But how hot is hot enough to ensure our food is...
Introduction Autoclaves are the backbone of sterilization in microbiology, medicine, and many industrial processes. A 2024 survey by the International...
Ever wonder why we refrigerate food, or why jams and pickles last longer than fresh produce? The answer lies in understanding what bacteria need to multiply....
Imagine a small peaceful community where the good guys dominate, spreading smiles and promising wellbeing for everyone. They keep a check on everybody and make...
Salmonella is a tough little bug. It’s infamous for causing foodborne illness from undercooked eggs, poultry, and a variety of other foods. But beyond food,...
Overview Centrifugation remains one of the fastest ways to separate microbial cells, nucleic acids, and proteins. By converting rotational speed into relative...
The capsule is the structure that acts as an invisible cloak and helps the bacteria from phagocytosis. Capsule helps bacteria to attach to the surfaces. The capsule has a sticky nature that attaches with the surface of the host cell. The fruitful attachment is responsible for the development of the disease. Without the attachment, bacteria don’t cause disease.
Spore-forming bacteria are those bacteria that can form spores under unfavourable conditions. Spores are the dormant form of bacteria that can tolerate all the...
You wake up with a painfully sore throat and notice your tonsils are swollen. A question immediately comes to mind - is it tonsillitis, and if so, is it...
Both cells are Prokaryotic in nature. These cells lack membrane bound organelles and major organelles like the nucleus, Golgi apparatus, endoplasmic reticulum and mitochondria. Their genetic material is suspended in the cytosol as false nuclei. But there is no membrane around the genetic material.
Picture yourself at a family cookout on a warm afternoon. You’ve got potato salad and burgers sitting out on the picnic table while everyone chats. It’s easy...
If you’ve ever taken a basic biology class, this question might sound almost too easy: Are bacteria prokaryotic or eukaryotic? The straightforward answer is...
Bacterial growth refers to the increase in the number of bacterial cells. Bacteria divide exponentially into the environment. Bacteria growth is represented in the form of generation time. Generation time is the time in which the bacterial cell divides into two. Read More
These are the bacteria that love to live in a high temperature. These bacteria can survive in hot temperature.
!Laboratory...
Sore throats can be confusing. You might hear a doctor say “it looks like tonsillitis,” while someone else mentions “strep throat,” and you’re left wondering -...
If you’ve ever searched online about bacterial vaginosis BV and bleeding, you probably found conflicting answers. Many sources insist that BV does not cause...
In the food industry, a single microscopic organism can spell disaster. We’ve all seen headlines like “Massive recall of ground beef due to E. coli” or...
Someone once asked me, “Do bacteria have RNA, or just DNA?” It’s a great question because we often hear about bacterial DNA - the famous double helix carrying...
Prevention from COVID-19: Starting from Wuhan City of Democratic Republic of China in early December 2019 and spreading to the whole world COVID-19 is one of...
You’ve just finished preparing a meal with raw chicken. The cutting board is washed, the counter looks clean, and dinner is served. But is your kitchen truly...
When you’re first learning microbiology, all the talk of DNA and RNA can get confusing. They’re both nucleic acids, they both carry genetic information of some...
Introduction Gel centrifugation is a cornerstone technique for separating, purifying, and concentrating microbial samples. By applying high relative...
!Heated water bath in microbiology...
In a hypothetical scenario: You’ve just cut up some raw chicken, and now you’re eyeing the cutting board. Or maybe you’re tossing sweaty gym clothes and...
You’ve likely heard news about a “new strain of bacteria” causing an outbreak or read on a yogurt label that it contains Lactobacillus strain so-and-so. The...
If you’ve been diagnosed with bacterial vaginosis BV and then notice a little bit of spotting, it’s natural to wonder if the two are related. Is it common to...
Bacteroides fragilis is a Gram negative pleomorphic rod shaped bacteria. It is an obligate anaerobic, non-spore forming, non-motile bacterium. Bacteroides...
These are the bacteria that can use iron and manganese from the water. These bacteria combine the oxygen and iron of the water and deposit it in the form of rust in water.
Why Stainless Steel Sampling Valves Matter Stainless steel SS 316L offers 99.9% corrosion resistance against common cleaning agents and maintains surface...
It’s one thing to deal with the unpleasant odor and discharge of bacterial vaginosis BV. But seeing blood on top of that can really amplify your worries. Why...
Why 100 PSI Matters In microbiology autoclaves and fermenters, overpressure incidents above 100 PSI account for 14 % of lab safety alerts OSHA, 2024. A...
Bacillus Cereus is an aerobic, motile and facultative anaerobe which also shows the property of beta hemolysis. The organism is transmitted to humans via food mainly rice kept at room temperature or reheated rice.
When you think about the microscopic life teeming around us, you might picture bacteria lurking on a kitchen counter or a virus causing the flu. But have you...
The virus was quite unknown at the start, this thing gave birth to many rumors. One of these rumors is that virus is not heat-resistant and cannot tolerate a temperature of 26 or above and the pandemic will be over in hot summer.
Why Steam Sterilization Matters in Food Processing Foodborne pathogens cause an estimated 600 million illnesses and 420,000 deaths worldwide each year WHO,...
Pyogenic bacteria are those bacteria that are involved in the formation of pus. Pus is the yellowish exudate. It is formed in the site of inflammation and abscess. It is also called pus and postule.
You might be familiar with the telltale signs of bacterial vaginosis BV: the fishy odor and the annoying discharge that just won’t quit. But what happens if...
Denitrifying bacteria are those bacteria that can convert the nitrate into free nitrogen. These bacteria consume the soil nitrate and convert into free nitrogen thus decrease the fertility of the soil.
An antibiotic is a substance obtained from isolated cultures of certain microorganisms or is of semi-synthetic origin used to treat or prevent microbial...
It’s fascinating to realize that every living thing - from the bacteria in your yogurt to the cells in your own body - is built from one of two basic cell...
For the industrial preparation of penicillin, there are many steps that are as follows, The pure culture can be obtained either from the environment or from American type culture collection (ATCC).