Navigation Links
The breathtaking dance of plants
Date:9/8/2011

The way in which plants space out the pores through which they breathe depends on keeping a protein active during stem cell growth, according to John Innes Centre scientists.

Plant pores, called stomata, are essential for life. When they evolved about 400 million years ago, they helped plants conquer the land. Plants absorb carbon dioxide through stomata and release oxygen and water vapour as part of the Earth's carbon and water cycles.

Stomata need to be evenly spaced to maximise breathing capacity. But how they establish an even spatial pattern during plant growth has been a mystery.

In a paper to be published in Science, the JIC scientists show that the ability of cells to divide and form stomata is retained in only one of the two daughter cells generated by each division. This pattern, known as stem cell behaviour, is also found in certain animal cells, like those that form skin or bone.

In the case of stomata, the stem cell property depends on a protein called SPEECHLESS (SPCH) being kept active in a single daughter cell. The daughter cell is kept at the centre of her cellular relatives through a sort of molecular dance through which the polarity of cells switches at each division. The daughter eventually forms a stoma, surrounded by non-stomatal relatives, ensuring that the stomatal pores are spaced out.

"Unravelling this mechanism was only possible because of advances in live imaging and computational modelling," said Professor Enrico Coen from JIC, the plant science centre strategically funded by Biotechnology and Biological Sciences Research Council (BBSRC).

The computer modelling predicted rules that the scientists were able to validate experimentally in the plant Arabidopsis. They tracked various markers such as a fluorescent protein to see the patterns that formed in growing leaves.

The research could help scientists to tailor the number and arrangement of stomata to different environments. This could regulate the efficiency at which plants absorb carbon dioxide or diffuse water vapour.


'/>"/>

Contact: Zoe Dunford
zoe.dunford@nbi.ac.uk
01-603-255-111
Norwich BioScience Institutes
Source:Eurekalert

Related biology news :

1. A dinosaur dance floor
2. Paleontologists doubt dinosaur dance floor
3. The 2009 AAAS/Science dance contest winners are announced
4. Honey bees on cocaine dance more, changing ideas about the insect brain
5. Abundance of ladybugs in olive orchards is an indicator of health and sustainability
6. SLAC researchers reveal the dance of water
7. Bates County Memorial Hospital Integrates Fujitsu PalmSecure Biometric Solution Into New Time and Attendance System
8. Abundance of a look-alike species clouds population status of a million dollar fish
9. Baby corals dance their way home
10. Carnivorous mammals track fruit abundance
11. ISU researchers discover cause of immune system avoidance of certain pathogens
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/3/2016)... 2016  Neurotechnology, a provider of high-precision biometric ... Biometric Identification System (ABIS) , a complete system ... ABIS can process multiple complex biometric transactions with ... fingerprint, face or iris biometrics. It leverages the ... MegaMatcher Accelerator , which have been used ...
(Date:4/26/2016)... , April 27, 2016 ... the  "Global Multi-modal Biometrics Market 2016-2020"  report to ... ) , The analysts forecast the ... CAGR of 15.49% during the period 2016-2020.  ... number of sectors such as the healthcare, BFSI, ...
(Date:4/14/2016)... AVIV, Israel , April 14, 2016 ... Behavioral Authentication and Malware Detection, today announced the appointment ... already assumed the new role. Goldwerger,s leadership ... BioCatch, on the heels of the deployment of its ... addition, BioCatch,s behavioral biometric technology, which discerns unique cognitive ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... June 23, 2016 Houston Methodist Willowbrook ... Cy-Fair Sports Association to serve as their official ... Houston Methodist Willowbrook will provide sponsorship support, athletic ... with association coaches, volunteers, athletes and families. ... Cy-Fair Sports Association and to bring Houston Methodist ...
(Date:6/23/2016)... 23, 2016   EpiBiome , a precision microbiome ... in debt financing from Silicon Valley Bank (SVB). The ... to advance its drug development efforts, as well as ... "SVB has been an incredible strategic partner to ... traditional bank would provide," said Dr. Aeron Tynes ...
(Date:6/23/2016)... Ky. , June 23, 2016 ... two Phase 1 clinical trials of its complement ... placebo-controlled, single and multiple ascending dose studies designed ... pharmacodynamics (PD) of subcutaneous injection in healthy adult ... subcutaneously (SC) either as a single dose (ranging ...
(Date:6/23/2016)... ... June 23, 2016 , ... ClinCapture, the ... Convention Center and will showcase its product’s latest features from June 26 to ... a scientific poster on Disrupting Clinical Trials in The Cloud during the conference. ...
Breaking Biology Technology: