Genomes of non-defective viruses range in size from 2,400,000 bp of dsDNA (Pandoravirus salinus) to 1,759 bp of ssDNA (porcine circovirus). Are even smaller viral genomes possible? The subviral agents called viroids provide an answer to this question.
Viroids, the smallest known pathogens, ar... Read More
You don’t want to miss asm2014. We’ve compiled a list of five things not to miss at the 114th American Society for Microbiology General Session.
Click the "source" link or copy/paste this URL into your browser: http://blog.puritanmedproducts.com/bid/383376/asm2014-Five-Things-Not-to-Miss-at-... Read More
Satellites are subviral agents that differ from viroids because they depend on the presence of a helper virus for their propagation. Satellite viruses are particles that contain nucleic acid genomes encoding a structural protein that encapsidates the satellite genome. Satellite RNAs do not encod... Read More
Most gut bacteria are beneficial, aiding food digestion, producing vitamins, and protecting against harmful bacteria. If left unchecked, however, harmful bacteria can excrete... Read More
A Geosmin Story:
A Musty / Muddy smell - the earthy odour after a heavy spatter of rain is aesthetic to senses.
A poet sitting in such ambiance lets his thoughts to wander randomly and comes out with a sweet piece of write up.
An Artist can do wonders on his canvas flowing with the mood.
Man... Read More
Viruses can be broadly classified according to whether or not the particle is enveloped – surrounded by a membrane taken from the host cell – or naked. Some naked viruses apparently are more modest than we believed. Read More
Mineral coatings on sand particles actually encourage microbial activity in the rapid sand filters that are used to treat groundwater for drinking, according to a paper published ahead of print in Applied and Environmental Microbiology. These findings resoundingly refute, for the first time, the... Read More
The entry of enveloped viruses into cells begins when the membrane that surrounds these virus particles fuse with a cell membrane. The process of virus-cell fusion must be tightly regulated, to make sure it happens in the right cells. The fusion activity of measles viruses isolated from the brai... Read More
Recently, the American Academy of Microbiology released a new report, Viruses Throughout Life & Time: Friends, Foes, Change Agents that delves into the origin of viruses, the overlooked biological and microbial ecological role of viruses, and how these live forms have contributed to evolution. T... Read More
The general program for the 2015 American Society of Microbiology meeting in New Orleans is out, and registration is now open. The sessions look incredible, and I've listed them below as I imagine they might resonate with many of the readers of this blog. The bolded sessions look particularly in... Read More
If the reader does not believe that viroids and satellites are distinctive, then surely prions, infectious agents composed only of protein, must impress.
The question of whether infectious agents exist without genomes arose with the discovery and characterization of infectious agents associat... Read More
New Massive Online Open Courses (MOOC) in Spanish about Pandemics and new viral infections.
An online open course about basic concepts of viruses and pandemics. We answer questions as what is a virus?, how a virus multiplies inside a cell?, what is a pandemic?, why appear new influenza virus ... Read More
Contrary to popular belief, urine is not sterile and the bacteria in it may be associated with overactive bladder (OAB) in some women. Presenters will discuss their research ... Read More
Referenced dataset of host/pathogen interactions for Borrelia burgdorferi: linked to Kegg pathway interactome analysis Read More
In this blog entry, I describe how working with the artist Katie McKissick ("Beatrice the Biologist") helped improve my freshman biology course. The intersection of biology and art benefits both! Read More
Recovering viral genomes from ancient specimens can provide information about viral evolution, but not many old nucleic acids have been identified. A study of 700 year old caribou feces reveals that viruses can be protected for long periods of time – under the right conditions. Read More
Immunology Explained Through Poetry - What happens when one touches a poison ivy?
Billy was at summer camp,
And wanted to feel like a champ,
So he searched for a flower,
That would stop Susie’s glower,
But found poison ivy instead.
While Billy was later playing,
He had no i... Read More
The great folks at "The People Behind the Science" interviewed me over Skype in late July, and the interview has just been released as a podcast. I discuss my path through science, my thoughts on teaching, research at undergraduate institution, and how to motivate and inspire students to strive... Read More