HOME >> BIOLOGY >> NEWS
Scientists find stem cell switch

Scientists have discovered how plant stem cells in roots detect soil structure and whether it is favourable for growth.

Poor soil structure is a problem in tropical agriculture, where soil becomes compact as it dries out.

We believe this is a first step towards understanding how plants respond to soil compaction. Armed with this understanding we can start to devise ways to tackle it, said research leader Professor Liam Dolan, of the John Innes Centre in Norwich, UK.

The research team determined that the hormone ethylene regulates cell division in root stem cells. Ethylene is known to play a role in perceiving and communicating environmental cues.

We predict that this is the mechanism plants use to detect how tough or soft the soil is around them, said Professor Dolan.

As in humans, plant stem cells are the source of all growth. The defining characteristics of stem cells are that they are able to either regenerate themselves or produce other types of cells. The ultimate source of cells in the root is the quiescent center, a group of four stem cells that divides infrequently and can produce any type of cell in the root. This study proved that ethylene is the cue needed to promote cell division.

Every spring, the growth in your garden is the result of the function of stem cells, said Professor Dolan.

Stem cells in buds are activated to divide and give rise to the growth for that season. In roots, we found that the division of stem cells is regulated by ethylene. We suggest that ethylene provides signals from the environment to activate cell division when the conditions are right.

The research was carried out in the mustard-like plant Arabidopsis, but it is thought to apply to other plant species.


'"/>

Contact: Zoe Dunford
zoe.dunford@bbsrc.ac.uk
44-016-032-55111
Norwich BioScience Institutes
26-Jul-2007


Page: 1

Related biology news :

1. Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes
2. Scientists prove that disputed Korean stem cell line comes from an unfertilized egg and not cloning
3. Scientists move closer to bio-engineered bladders
4. Scientists discover new way to study nanostructures
5. Scientists a step closer to understanding how anaesthetics work in the brain
6. Scientists to make news at Computational Biology Conference
7. Accident-prone? Scientists link brain function to knee injuries
8. Scientists take next step in understanding potential target for ovarian cancer treatment
9. Scientists find brown fat master switch
10. Scientists identify 2 distinct Parkinsons networks
11. Scientists follow familiar TRAIL to new cancer therapy

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... , May 16, 2017   Bridge ... health organizations, and MD EMR Systems , ... development partner for GE, have established a partnership ... Portal product and the GE Centricity™ products, including ... EMR. These new integrations will ...
(Date:4/17/2017)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... Report on Form 10-K on Thursday April 13, 2017 with the ... The ... section of the Company,s website at http://www.nxt-id.com  under "SEC Filings," ... 2016 Year Highlights: Acquisition of ...
(Date:4/11/2017)... 11, 2017 No two people are ... the New York University Tandon School of Engineering ... found that partial similarities between prints are common ... mobile phones and other electronic devices can be ... vulnerability lies in the fact that fingerprint-based authentication ...
Breaking Biology News(10 mins):
(Date:9/19/2017)... ... 19, 2017 , ... The new and improved Oakton® pocket testers, from Cole-Parmer, ... upright with a new cap design that is versatile, functional and leakproof. They are ... to test water quality. , The Oakton pocket testers have many user-friendly and functional ...
(Date:9/19/2017)... ... September 19, 2017 , ... ... a partnership with Cytena GmbH to launch the CloneSelect™ Single-Cell Printer™ in North ... to isolate single cells and provide visual documentation of monoclonality for use in ...
(Date:9/18/2017)... ... September 18, 2017 , ... ... move of the SPIE Digital Library ( http://www.spiedigitallibrary.org ) on 15 August to ... an improved user experience and incorporate a number of enhancements and new features, ...
(Date:9/15/2017)... ... September 15, 2017 , ... ... it calls an ‘Internal Seed B’ round of financing, totaling $600,000. The ... completed using a ‘SAFE’ documentation structure at a company valuation of $10M. ...
Breaking Biology Technology:
Cached News: