Navigation Links
It's good to have a shady side: sun and shade leaves play different roles in tree canopies
Date:3/31/2011

Durham, NC 'Outer' tree canopy leaves influence the sunlight reaching inner canopy leaves by changing their shape, says a new study.

The shape and physiology of leaves within the tree canopy is not constant, and can vary depending on their position within the tree crown. This phenomenon is expected to have important consequences for how trees cope with stress and use resources.

A new study describes how the leaves in the outer canopy of olive trees can influence the light environment within the canopy by changing their shape, as more elongated leaves resulted in higher levels of solar radiation inside the crown.

Author Rafael Rubio de Casas and colleagues observed that inner canopy leaves appear to be particularly adapted to the use of diffuse solar radiation, which is more constant than direct radiation. They propose that outer canopy leaves change not only to maximize their own performance, but also to create a beneficial environment for the inner canopy leaves. They also suggest that leaves in various positions of the canopy can use different types of solar radiation for photosynthesis and operate at different time windows. Exposed leaves are expected to use direct solar radiation and be more active when the sun is close to the horizon, while shaded leaves specialize in the capture of diffuse radiation and are more active when the sun is higher.

De Casas and colleagues feel that their work shows a novel and heretofore unexplored integrated function of leaves that could have substantial ecological importance.


'/>"/>

Contact: Rafael Rubio de Casas
rafa@nescent.org
919-668-9107
National Evolutionary Synthesis Center (NESCent)
Source:Eurekalert

Page: 1

Related biology news :

1. Some city trees may discourage shady behavior
2. From bark to bedside: Study looks at canine cancer genes, human health impact
3. How plants counteract against the shade of larger neighbors
4. Nightshades mating habits strike uneasy evolutionary balance
5. Shade-coffee farms support native bees that maintain genetic diversity in tropical forests
6. Low-tech cool: Shade trees for subtropical streets
7. Sun or shade: Pecan leaves photosynthetic light response evaluated
8. UGA licenses new Bermuda grass that thrives in sun and shade
9. New study: Home energy savings are made in the shade
10. Shades of 1918? New study compares avian flu with a notorious killer from the past
11. California study shows shade trees reduce summertime electricity use
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/6/2017)... 5, 2017 RAM Group , ... new breakthrough in biometric authentication based on a ... properties to perform biometric authentication. These new sensors are ... created by Ram Group and its partners. This sensor ... supply chains and security. Ram Group is a ...
(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)... DUBLIN , Apr. 11, 2017 Research ... Tracking Market 2017-2021" report to their offering. ... The global eye tracking market to grow at ... The report, Global Eye Tracking Market 2017-2021, has been prepared based ... report covers the market landscape and its growth prospects over the ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... Charlotte, N.C. (PRWEB) , ... October 11, 2017 ... ... ARCS® Foundation President Andi Purple announced Dr. Suneel I. Sheikh, the ... Laboratories ( ASTER Labs ), Inc. has been selected for membership in ...
(Date:10/11/2017)... 2017  VMS BioMarketing, a leading provider of patient support ... Nurse Educator (CNE) network, which will launch this week. The ... health care professionals to enhance the patient care experience by ... other health care professionals to help women who have been ... ...
(Date:10/10/2017)... ... 2017 , ... San Diego-based team building and cooking events company, Lajollacooks4u, has ... The bold new look is part of a transformation to increase awareness, appeal to ... period. , It will also expand its service offering from its signature gourmet cooking ...
(Date:10/10/2017)... SANTA CRUZ, Calif. , Oct. 10, 2017 /PRNewswire/ ... SBIR grant from the NIH to develop RealSeq®-SC (Single ... preparation kit for profiling small RNAs (including microRNAs) from ... Cell Analysis Program highlights the need to accelerate development ... "New techniques for ...
Breaking Biology Technology: