Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists Succeed in Growing ’Uncultivable’ Microorganisms

13.05.2002


Of the estimated 10,000 to 100,000 microbial species that inhabit our planet, scientists can only coax a few thousand to grow in the laboratory. As a result, efforts to categorize the vast diversity of microbes are lagging far behind attempts to classify plants, animals and insects. Now a report published in the current issue of the journal Science suggests that some of these so-called uncultivable microorganisms might not be so out of reach after all.



Tammi Kaeberlein, Kim Lewis and Klava Epstein of Northeastern University succeeded in growing pure cultures of elusive beach-growing bacteria by recreating their shore environment in the lab. The scientists collected blocks of beach and separated the microorganisms that reside on the sandy surface into sealed chambers, which were then set atop the sediment blocks inside aquariums. Though chemicals and nutrients could enter the chambers, the bacteria remained trapped. The novel experimental set-up garnered a nearly 300 percent increase in the number of microorganisms that produced colonies as compared with results achieved in conventional petri dishes. Moreover, the team isolated two previously unknown microbes, dubbed MSC1 and MSC2, and is analyzing nine others.

MSC1 (see image) and MSC2 also provided clues as to why some microorganisms refuse to grow in a stark laboratory dish even when ample nutrients are provided. The researchers discovered that culturing MSC1 and MSC2 in the specially designed chambers was easy but the bacteria would only grow in a petri dish if both strains were present. Because bacteria can use chemicals known as pheromones to communicate, the authors conclude that "it seems possible that microorganisms require specific signals originating from their neighbors that indicate the presence of a familiar environment."

Sarah Graham | American Scientist

More articles from Life Sciences:

nachricht Complementing conventional antibiotics
24.05.2018 | Goethe-Universität Frankfurt am Main

nachricht Building a brain, cell by cell: Researchers make a mini neuron network (of two)
23.05.2018 | Institute of Industrial Science, The University of Tokyo

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

First chip-scale broadband optical system that can sense molecules in the mid-IR

24.05.2018 | Physics and Astronomy

Beyond the limits of conventional electronics: stable organic molecular nanowires

24.05.2018 | Power and Electrical Engineering

These could revolutionize the world

24.05.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>