Featured Research

from universities, journals, and other organizations

DNA molecules in moss open door to new biotechnology

Date:
November 22, 2009
Source:
Uppsala University
Summary:
Plasmids, which are DNA molecules capable of independent replication in cells, have played an important role in gene technology. Researchers have now demonstrated that plasmid-based methods, which had been limited to single-cell organisms such as bacteria and yeasts, can be extended to mosses, opening the door to applications of a number of powerful techniques in plant research.

Moss. Researchers from Uppsala University in Sweden have now demonstrated that plasmid-based methods, which had been limited to single-cell organisms such as bacteria and yeasts, can be extended to mosses, opening the door to applications of a number of powerful techniques in plant research.
Credit: iStockphoto/Mike Cherim

Plasmids, which are DNA molecules capable of independent replication in cells, have played an important role in gene technology. Researchers from Uppsala University in Sweden have now demonstrated that plasmid-based methods, which had been limited to single-cell organisms such as bacteria and yeasts, can be extended to mosses, opening the door to applications of a number of powerful techniques in plant research.

Related Articles


The findings have been published in the distinguished journal Proceedings of the National Academy of Sciences of the USA (PNAS).

Professor Hans Ronne's research team at the Department of Medical Biochemistry and Microbiology at Uppsala University works with the diminutive Physcomitrella moss, which is widely used in research because its genes are easier to "knock out" than those of other plants. Previous work has also shown that DNA introduced into Physcomitrella cells is capable of self-replication through an as yet uncharacterised process.

The new study, which was led by Dr. Eva Murén and Ph.D. student Anders Nilsson, shows that plasmids introduced into moss cells can be rescued back to bacteria without affecting the plasmids' original structures, provided that certain conditions are met. Up to now, various kinds of rearrangements have sharply limited the use of plasmids in animal- and plant-cell research.

"Our work with plasmids in moss suggests that it will be possible to use powerful methods such as gene cloning by complementation and overexpression directly in plant cells without recourse to single-cell organisms like bacteria or yeasts," says Professor Hans Ronne. "This, in turn, may simplify basic and applied research and biotechnology involving plants."


Story Source:

The above story is based on materials provided by Uppsala University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Muren et al. Rescue and characterization of episomally replicating DNA from the moss Physcomitrella. Proceedings of the National Academy of Sciences, 2009; DOI: 10.1073/pnas.0908037106

Cite This Page:

Uppsala University. "DNA molecules in moss open door to new biotechnology." ScienceDaily. ScienceDaily, 22 November 2009. <www.sciencedaily.com/releases/2009/11/091106145254.htm>.
Uppsala University. (2009, November 22). DNA molecules in moss open door to new biotechnology. ScienceDaily. Retrieved January 27, 2015 from www.sciencedaily.com/releases/2009/11/091106145254.htm
Uppsala University. "DNA molecules in moss open door to new biotechnology." ScienceDaily. www.sciencedaily.com/releases/2009/11/091106145254.htm (accessed January 27, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Tuesday, January 27, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Aquaponics Turn Suburban Industrial Park Into Farmland: Hume

Aquaponics Turn Suburban Industrial Park Into Farmland: Hume

The Toronto Star (Jan. 27, 2015) — Ancient techniques of growing greens with fish and water are well ahead of Toronto bylaws. Video provided by The Toronto Star
Powered by NewsLook.com
Chihuahua Sleeps on Top of Great Dane

Chihuahua Sleeps on Top of Great Dane

Rumble (Jan. 27, 2015) — As this giant Great Dane lays down for bedtime he accompanied by an adorable companion. Watch a tiny Chihuahua jump up and prepare to sleep on top of his friend. Now that&apos;s a pretty big bed! Credit to &apos;emma_hussey01&apos;. Video provided by Rumble
Powered by NewsLook.com
Shark Bite Victim Making Amazing Recovery

Shark Bite Victim Making Amazing Recovery

AP (Jan. 27, 2015) — A Texas woman who lost more than five pounds of flesh to a shark in the Bahamas earlier this month could be released from a Florida hospital soon. Experts believe she was bitten by a bull shark while snorkeling. (Jan. 27) Video provided by AP
Powered by NewsLook.com
How To: Mixed Green Salad Topped With Camembert Cheese

How To: Mixed Green Salad Topped With Camembert Cheese

Rumble (Jan. 26, 2015) — Learn how to make a mixed green salad topped with a pan-seared camembert cheese in only a minute! Music: Courtesy of Audio Network. Video provided by Rumble
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins