Navigation Links
Study shows that hitchhiking bacteria can go against the flow
Date:8/9/2010

was repeated by adding bacteria to the top layer of the cylinders and following the downward transport of the bacteria by migrating Daphnia.

The experiments were done with 3 different species of bacteria. At the end of their lab experiments, the team found labeled bacteria were transported in both upward and downward directions in the cylinders containing Daphnia, confirming their "conveyor-belt" hypothesis. Field studies of Daphnia and bacteria from a local lake further strengthened their laboratory findings.

Aquatic hitchhikers

The team's study, says Tang, clearly shows that "bacteria, including pathogens, are able to travel and cross aquatic boundaries by hitchhiking on migrating organisms, thus facilitating exchanges between separate microbial communities and allowing access to otherwise inaccessible resources."

The authors note that "unlike slowly sinking aggregates and other detritus that mostly transport bacteria downward, mobile and migrating hosts can cover long distances rapidly and disperse bacteria in all directions repeatedly and effectively."

Tang cautions that in natural environments with diverse species of zooplankton, "dispersal of hitchhiking bacteria will not be uniform and can occur both vertically and horizontally, and on different time and space scales, from daily to seasonal migrations over millimeters to kilometers."

Although the team conducted their study in freshwater lakes and with freshwater organisms, Tang says their findings likely pertain to ocean ecosystems as well. "Many species of marine zooplankton migrate long distances vertically on daily or seasonal time scales, or during different stages of their life cycle," he says. "They may therefore transport and disperse bacteria over long distances, affecting the ecology and physiology of even deep-sea microbes."


'/>"/>

Contact: Kam Tang
kamtang@vims.edu
804-684-7602
Virginia Institute of Marine Science
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. £2 million study to reveal workings of dementia genes
3. New study looks to define evangelicals and how they affect polling
4. CU-Boulder study suggests air quality regulations miss key pollutants
5. Researchers study acoustic communication in deep-sea fish
6. Study reveals homeowner perceptions in fire-prone areas
7. Researchers study how pistachios may improve heart health
8. Study: urban black bears live fast, die young
9. New study indicates link between weight gains during pregnancy and dieting history
10. Study reveals specific gene in adolescent men with delinquent peers
11. Sweat it out: UH study examines ability of sweat patches to monitor bone loss
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study shows that hitchhiking bacteria can go against the flow
(Date:10/16/2014)... and Mary,s Virginia Institute of Marine Science have ... Protection Agency to identify the streams and wetlands ... tools to help local governments and citizens conserve ... on a dataset of tidal-marsh observations first gathered ... this historical baseline can today,s researchers accurately map ...
(Date:10/16/2014)... monocultures can be cultivated efficiently, they are anything ... caused by monoculture cultivation is becoming increasingly evident. ... crop form and are regarded as the sole ... – quite wrongfully, finds Bernhard Schmid, an ecology ... a novel form of agriculture and forestry. After ...
(Date:10/16/2014)... , October 16, 2014 NXT-ID, Inc. (NASDAQ: ... "Company"), a biometric authentication company focused on the growing ... edge technologies including Wocket™, the Smart Wallet, at the ... FiRe is a leading global conference on the intersection ... by Mark Anderson , founder and publisher of ...
Breaking Biology News(10 mins):EPA grant will help localities conserve headwater wetlands 2EPA grant will help localities conserve headwater wetlands 3Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3
... weekend warriors: the simple act of exercise and not ... a new University of Florida study finds. People ... gaining strength or boosting cardiovascular fitness feel just as ... said Heather Hausenblas, a UF exercise psychologist. Her study ...
... sees the launch of Ensembl Plants a ... by the European Molecular Biology Laboratory,s European ... Spring Harbor Laboratory, USA. Ensembl Plants allows researchers ... genome-scale experiments in different plant species. By pinpointing ...
... disease and other diet related health problems received a 4 ... projects. The projects, taking place in universities and research institutes ... publicly-funded Research Councils and 15 companies. This means the research ... in our society but in a way that the food ...
Cached Biology News:UF study: Exercise improves body image for fit and unfit alike 2UF study: Exercise improves body image for fit and unfit alike 3New portal for plant genomics will support research into improved crops 2Public sector and industry unite to attack obesity and heart disease 2
(Date:10/25/2014)... 2014 According to new market ... Center Types (Colocation, Enterprise, Telecom), by Design Types ... Tier 2, Tier 3, Tier 4) - Global ... segments the Data Center Construction Market into various ... revenues. This research report also identifies the factors ...
(Date:10/25/2014)... This research report “Biodegradable Plastics Market by Type ... PCL), by Application (Packaging, Fibers, Agriculture, Injection Molding) ... and segments the global biodegradable plastics market with ... and value. , Browse 75 Market Data Tables ... in-depth TOC on “Biodegradable Plastics Market by Type, ...
(Date:10/25/2014)... A new way to produce engineered skin ... skin grafting technologies, it also speeds up the healing ... in the October issue of STEM CELLS Translational Medicine, ... that result from severe burns and chronic wounds. , ... elements. These wounds heal by contraction, with epithelization (the ...
(Date:10/25/2014)... and NEW YORK , ... (OTCQB: ACCPD), formerly Access Pharmaceuticals, Inc. (ACCP), a ... announced it has implemented a 1-for-50 reverse split ... of trading on Friday, October 24, 2014. PlasmaTech,s ... under new CUSIP number 72754H109 and temporary ticker ...
Breaking Biology Technology:Data Center Construction Market Worth $22.73 Billion by 2019 - New Report by MarketsandMarkets 2Data Center Construction Market Worth $22.73 Billion by 2019 - New Report by MarketsandMarkets 3Data Center Construction Market Worth $22.73 Billion by 2019 - New Report by MarketsandMarkets 4Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 2Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 3Biodegradable Plastics Market Projected to $3,476.87 Million by 2019 - Report by MarketsandMarkets 4New engineering method shows promise for faster healing, more cosmetically appealing skin grafts 2New engineering method shows promise for faster healing, more cosmetically appealing skin grafts 3PlasmaTech Biopharmaceuticals, Inc. Announces Reverse Stock Split, Ticker Change and Launches New Corporate Website 2
... DIEGO -- In the Sept 9, 2010 issue of ... of concept studies that show its proprietary compound, NGP ... Alzheimer,s disease (AD) in a transgenic mouse model. ... the gamma secretase modulator (GSM) compound from NGP, the ...
... GAITHERSBURG, Md. Using a one-of-a-kind instrument designed and ... (NIST), an international team of researchers have "unveiled" a ... in graphene can split up into an unexpected and ... low temperatures and extremely high magnetic fields. Published in ...
... THE WOODLANDS, Texas, Sept. 9 Lexicon Pharmaceuticals, ... company focused on discovering breakthrough treatments for human disease, ... president and chief executive officer, will present at the ... 16, 2010 at 9:10 a.m. Eastern Time. ...
Cached Biology Technology:Neurogenetic studies show proprietary compound reduces brain plaques linked to Alzheimer's 2NIST researchers hear puzzling new physics from graphene quartet's quantum harmonies 2NIST researchers hear puzzling new physics from graphene quartet's quantum harmonies 3Lexicon to Present at Stifel Nicolaus Healthcare Conference 2