Featured Research

from universities, journals, and other organizations

How plants chill out: Plants elongate their stems to cool their leaves

Date:
May 21, 2012
Source:
University of Bristol
Summary:
Plants elongate their stems when grown at high temperature to facilitate the cooling of their leaves, according to new research. Understanding why plants alter their architecture in response to heat is important as increasing global temperatures pose a threat to future food production.

(Left) Arabidopsis thaliana, the model plant species, grown at 22oC (top) and 28oC (bottom). (Right) Thermal images of 22oC-grown (top) and 28oC-grown (bottom) Arabidopsis plants moved to 28oC.
Credit: Image by Dr Kerry Franklin

Plants elongate their stems when grown at high temperature to facilitate the cooling of their leaves, according to new research from the University of Bristol recently published in Current Biology. Understanding why plants alter their architecture in response to heat is important as increasing global temperatures pose a threat to future food production.

Although scientists have made significant advances in understanding how plants elongate at high temperature, little is known of the physiological consequences of this response. To investigate these consequences, the researchers, led by Dr Kerry Franklin and Professor Alistair Hetherington in Bristol's School of Biological Sciences, studied thale cress (Arabidopsis thaliana), a small flowering plant which is a popular model species in plant biology and genetics.

When grown at higher temperatures, plants have an elongated, spindly architecture and develop fewer leaf pores, known as stomata. However, in spite of having a reduced number of stomata, the elongated Arabidopsis thaliana plants grown by the team displayed greater water loss and leaf evaporative cooling.

The researchers suggest that the increased spacing of leaves observed in high temperature-grown plants may promote the diffusion of water vapour from stomata, thereby enhancing the cooling process.

Dr Franklin said: "Temperature and water availability are major factors affecting plant yield. Understanding the relationship between temperature, plant architecture and water use is therefore essential for maximising future crop production and ensuring food security in a changing climate."

The research was funded by the Biotechnology and Biological Sciences Research Council (BBSRC). Dr Franklin is supported by a Royal Society Research Fellowship.


Story Source:

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


Journal Reference:

  1. Amanda J. Crawford, Deirdre H. McLachlan, Alistair M. Hetherington, Keara A. Franklin. High temperature exposure increases plant cooling capacity. Current Biology, 22 May 2012 DOI: 10.1016/j.cub.2012.03.044

Cite This Page:

University of Bristol. "How plants chill out: Plants elongate their stems to cool their leaves." ScienceDaily. ScienceDaily, 21 May 2012. <www.sciencedaily.com/releases/2012/05/120521132758.htm>.
University of Bristol. (2012, May 21). How plants chill out: Plants elongate their stems to cool their leaves. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2012/05/120521132758.htm
University of Bristol. "How plants chill out: Plants elongate their stems to cool their leaves." ScienceDaily. www.sciencedaily.com/releases/2012/05/120521132758.htm (accessed October 21, 2014).

Share This



More Plants & Animals News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Cadaver Dog' Sniffs out Human Remains

'Cadaver Dog' Sniffs out Human Remains

AP (Oct. 21, 2014) Where's a body buried? Buster's nose can often tell you. He's a cadaver dog, specially trained to find human remains and increasingly being used by law enforcement and accepted in courts. These dogs are helping solve even decades-old mysteries. (Oct. 21) Video provided by AP
Powered by NewsLook.com
White Lion Cubs Born in Belgrade Zoo

White Lion Cubs Born in Belgrade Zoo

AFP (Oct. 20, 2014) Two white lion cubs, an extremely rare subspecies of the African lion, were recently born at Belgrade Zoo. They are being bottle fed by zoo keepers after they were rejected by their mother after birth. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
Goliath Spider Will Give You Nightmares

Goliath Spider Will Give You Nightmares

Buzz60 (Oct. 20, 2014) An entomologist stumbled upon a South American Goliath Birdeater. With a name like that, you know it's a terrifying creepy crawler. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
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