Printer Friendly

Plasmids in Moss Open Door to New Technique in Biotechnology.

Summary: TEHRAN (FNA)- Researchers at Uppsala University in Sweden have been able to open the door to new techniques in biotechnology by using plasmid-based methods.

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.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 is working 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 MurE[umlaut]n and Ph.D. student Anders Nilsson, showed 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," Professor Hans Ronne said."This, in turn, may simplify basic and applied research and biotechnology involving plants," the professor added.

2006 Fars News Agency. All rights reserved

Provided by an company
COPYRIGHT 2009 Al Bawaba (Middle East) Ltd.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2009 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Publication:FARS News Agency
Date:Nov 22, 2009
Previous Article:Iranian Researchers Invent Anti-Erosion Engine Oil.
Next Article:Commander Stresses Necessity for Preparedness against Enemy Threats.

Terms of use | Copyright © 2017 Farlex, Inc. | Feedback | For webmasters