Navigation Links
Microbes hitchhike across Atlantic on desert dust

Bacteria and fungi, some with the potential to cause disease in plants or animals, may be finding their way from Africa to the Americas by hitchhiking on microscopic dust particles kicked up by storms in the Sahara, according to research presented today at the 106th General Meeting of the American Society for Microbiology in Orlando, Florida.

"This study presents evidence of early summer survival and transport of microorganisms from North Africa to a mid-Atlantic research site," says Dale Griffin of the U.S. Geological Survey in St. Petersburg, Florida, one of the researchers on the study.

Griffin and his colleagues tested air samples on a research ship in the middle of the Atlantic Ocean during May and June 2003 to determine if airborne, viable populations of bacteria and fungi could be detected and also to see if total population counts increased with the presence of airborne desert dust.

"The phenomenon known as desert-dust storms moves an estimated 2.2 billion metric tons of soil and dried sediment through the Earth's atmosphere each year. The largest of these events is capable of dispersing large quantities of dust across oceans and continents. Since a gram of desert soil may contain as many as 1 billion bacterial cells, the presence of airborne dust should correspond with increased concentrations of airborne microorganisms," says Griffin

Viable bacterial and fungal populations were collected on 24 of 40 sampling days. The three days where the highest populations were collected corresponded with the two highest periods of dust activity as determined by the U.S. Navy's Naval Aerosol Analysis and Prediction System Global Aerosol Model.

DNA analysis matched two of the isolates 100 percent to two dust-borne isolates previously collected from the atmosphere in Mali. One of them, a known human pathogen, has also been found in atmospheric samples in the U.S. Virgin Islands when African desert dust was present. Additional ana lysis identified a number of bacteria and fungi capable of causing disease in animals and plants, including the cause of Florida Sycamore canker.

"It is tempting to speculate that transatlantic transport of dust could be a vector to renew reservoirs of some plant and animal pathogens in North America and could also be the cause of new diseases," says Griffin.


'"/>

Source:American Society for Microbiology


Related biology news :

1. Researchers Discover That Microbes Can Produce Miniature Electrical Wires
2. Microbes under Greenland Ice may be preview of what scientists find under Mars surface
3. Microbes convert Styrofoam? into biodegradable plastic
4. Microbes transform safest PBDEs into more harmful compounds
5. Microbes compete with animals for food by making it stink
6. Microbes start immune response by sneaking inside cells
7. A virus-like hitchhiker may trigger bacterial meningitis
8. Viral hitchhiker inhibits Wolbachia bacterias ability to proliferate
9. Monkeys understand numbers across senses
10. Sensor web simulation investigates technique to improve prediction of pollution across the globe
11. Low levels of neurotransmitter serotonin may perpetuate child abuse across generations
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/17/2018)... and LIEGE, Belgium (PRWEB) , ... ... ... today announced the acquisition of NXT-Dx, an established epigenetics service provider based ... including a number of targeted DNA methylation assays using pyrosequencing or Next-Generation ...
(Date:8/17/2018)... ... August 16, 2018 , ... ... first private cord blood bank to separate and store stem cells in 1992, ... and Brian Sheehy, M.D. M.A. C.F.A., Founder and Managing Partner IsZo Capital, have ...
(Date:8/14/2018)... (PRWEB) , ... August 13, 2018 , ... ... meet potential employers and explore opportunities with multiple health systems at once. However, ... Virtual career fairs offer another, more efficient option for healthcare providers who wish ...
Breaking Biology News(10 mins):
(Date:9/7/2018)... Wis. (PRWEB) , ... September 06, 2018 , ... ... which runs from September 25th-28th is a meeting of “The industry’s preeminent event ... AptaFluor®, provide drug discovery scientists powerful tools to study these emerging targets in ...
(Date:9/7/2018)... Mich. (PRWEB) , ... September 06, 2018 , ... Akadeum ... Dunbar has spent his career as an executive and leader of numerous biotech companies. ... private cell therapy and biologics company acquired by Thompson Street Capital in St. Louis, ...
(Date:8/31/2018)... ... , ... Small, wireless and networked describes more than the latest household gadget. ... latest system is tiny in size, but is poised to make a big impact ... implant design is the growing awareness that disease often involves complex interactions between multiple ...
(Date:8/29/2018)... ... August 28, 2018 , ... Inc. Magazine has announced that ... in 1138th place on the 27th annual Inc. 5000, the most prestigious ranking ... most successful companies within the American economy’s most dynamic segment – independent small ...
Breaking Biology Technology: