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:12/8/2016)... 8, 2016  Singulex, Inc., the leader in Next ... into a license and supply agreement with Thermo Fisher ... provides Singulex access to Thermo Scientific BRAHMS PCT (Procalcitonin), ... is used to diagnose systemic bacterial infection and sepsis ... to aid in assessing the risk of critically ill ...
(Date:12/7/2016)... 7, 2016   Veridium , a leader ... of new CEO James Stickland . Stickland, ... of experience, has served in senior executive roles ... specialized in expanding a pipeline of venture capital ... most recently served as managing director of U.K.-based ...
(Date:12/5/2016)... WASHINGTON , Dec. 5, 2016  The ... (NIJ), today published "Can CT Scans Enhance or ... examines the potential of supporting or replacing forensic ... a CT scan. In response to ... NIJ is exploring using CT scans as a ...
Breaking Biology News(10 mins):
(Date:1/11/2017)... ... January 11, 2017 , ... As a ... Peru studying the pathogens that cause malaria and tuberculosis. Seeing firsthand the ravages ... discovery. , Now, as an assistant professor of biology and biotechnology at Worcester ...
(Date:1/11/2017)... Ca (PRWEB) , ... January 11, 2017 , ... ... U.S. each year and costing healthcare systems more than $23.7 billion, healthcare ... controlling costs. , Among the most common sepsis-causing pathogens are bacteria and ...
(Date:1/11/2017)... ... January 11, 2017 , ... IsoPlexis ... response analysis platform to measure the proteomic function of individual cells in patients, ... Research (SBIR) grant from the National Institute on Aging of the National Institutes ...
(Date:1/11/2017)... ... , ... Back pain relief technology is now available without a prescription at ... pain relief for WAR members. , This spinal restoration platform boasts utilization of technology ... millions suffering from chronic back pain. , What A Relief Back Pain ...
Breaking Biology Technology: