Navigation Links
Seeing the forest through the trees and seeing the trees through the leaves
Date:1/13/2010

Since the time of the earliest humans, people have attempted to understand the natural environment. We have observed our surroundings and searched for explanations for natural phenomena. Yet despite our persistence over thousands of years, many basic questions remain to be answered. Although we understand core processes such as photosynthesis, we do not have a full understanding of issues such as how plants maximize their photosynthetic capacity.

Specific leaf area, or SLA, plays a prominent role in ecological theories that attempt to provide explanations for plant and ecosystem function. SLA, a measurement of the total leaf area to dry mass, has been found to correlate with the potential for light-resource use, the relative growth rate of a plant, and differences in essential nutrient demand and habitat preference.

Scientists also have observed that the SLA of individual leaves varies within a single plant, and this measurement often correlates with leaf maturation and position within the canopy. More recently, scientists have discovered that, as a tree increases in size, its total canopy SLA decreasesthat is to say, its total leaf surface area fails to keep pace with increases in total leaf mass.

What causes this decrease in SLA as tree size increases has remained a mystery, but recent research by Cornell University scientists Karl Niklas and Edward Cobb published in the January issue of the American Journal of Botany (http://www.amjbot.org/cgi/content/full/97/1/27) provides an explanation for this decrease in SLA with an increase in tree size.

"The traditional explanation for the size-dependent decrease in SLA was never very satisfying," Niklas said. "We wanted to look at this phenomena in greater details with more care, and we found a totally different answer to a classic ecological question."

The commonly accepted hypothesis has be
'/>"/>

Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert

Page: 1 2

Related biology news :

1. Seeing Alzheimers amyloids
2. Crystal (eye) ball: Study says visual system equipped with future seeing powers
3. Seeing through the skin
4. Seeing stem cells helps in fight against peripheral arterial disease
5. Seeing the tree from the forest: Predicting the future of plant communities
6. Seeing previously invisible molecules for the first time
7. Seeing is relieving
8. Seeing without looking
9. Seeing how evolutionary mechanisms yield biological diversity
10. Seeing family for the holidays? Scientists discover how the stress might kill you
11. Tropical insects go the distance to inform rainforest conservation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/10/2014)... 8, 2014 You,ve been here before: you desperately ... remember your password, site key or the answer to your ... grade teacher? Today, Hoyos Labs , ... that will finally put an end to the frustration that ... . 1U leverages a user,s smartphone to acquire his ...
(Date:12/10/2014)...  Wake Forest Baptist Medical Center today announced plans for ... Medicine. Funding for this $50 million capital project is ... publicly launched next summer. The medical ... series R.J. Reynolds Tobacco Company complex, adjacent to 525@vine ... with plans to be ready to welcome medical students ...
(Date:12/10/2014)... , Dec. 08, 2014 Research and Markets ... addition of the "Biometrics Market in Japan ... http://photos.prnewswire.com/prnh/20130307/600769 The ... such as rural banking and upgradation of the ... witnessed in the market. Besides the aforementioned projects, ...
Breaking Biology News(10 mins):The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2
... the first study of its kind, researchers at Queens ... that low socioeconomic status (SES) and maternal gestational diabetes ... deficit hyperactivity disorder (ADHD) in six year olds. The ... Archives of Pediatrics and Adolescent Medicine , one ...
... of a microRNA promotes progressive muscle deterioration in a ... a study published online on January 2 in the ... As DMD patients age, their damaged muscle cells ... fibrosis is partly induced by the growth factor TGF-beta, ...
... Millbrook, N.Y. -- On January 2nd, WAMC Northeast Public Radio ... new radio show called Earth Wise: A look at our ... among radio listeners, with a focus on raising awareness about ... segments will air Monday through Friday at 11:10 AM and ...
Cached Biology News:Gestational diabetes and low socioeconomic status raise risk of ADHD in children 2A firmer understanding of muscle fibrosis 2Cary Institute and WAMC debut new environment radio show 2
(Date:12/17/2014)... Gene synthesis and bioengineering company ... into a technology access and services agreement with ... proprietary protein engineering technology, known as “ProteinGPS®” to ... extremely excited that the global leader ADM has ... bioengineering technology has now been validated through many ...
(Date:12/17/2014)... FRANCISCO, Calif. , Dec. 17, 2014 /PRNewswire/ ... of a Phase 2 study evaluating the investigational ... treatment of patients with severe, chronic itch who ... standard of care, including topical steroids and antihistamines. ... percent change in Visual Analog Scale (VAS) itch ...
(Date:12/15/2014)...  GlassesOff Inc. (OTCBB: GLSO) announced today the appointment ... director of the Company,s Board of Directors. ... its CEO until its acquisition by Stanley Black ... Recognized as the inventor of the first Wi-Fi-based Active ... -based RFID solutions focused on improving operational efficiency, safety ...
(Date:12/13/2014)... December 12, 2014 Clarassance, a privately ... its new name: Therabron Therapeutics , Inc. The ... bronchioles (a type of structure in the lungs similar ... mission to develop novel protein therapeutics for the treatment ... decided to change the name to mark the company's ...
Breaking Biology Technology:ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 2Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 3Velocity Pharmaceutical Development, LLC and Tigercat Pharma, Inc. Announce Phase 2 Results for VPD-737 in Patients With Chronic Pruritus 4AeroScout Founder Joins GlassesOff's Board of Directors 2AeroScout Founder Joins GlassesOff's Board of Directors 3Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2
... Production Efficiency and Manage Quality at New LIFE Nutrition ... Honeywell (NYSE: HON ) today announced that ... global manufacturer of healthcare products, to provide process control ... nutrition and infusion therapy solutions. The Leading Infusion Factory ...
... 27 Senesco Technologies, Inc. ("Senesco" or the "Company") (NYSE ... Vice President of Research and Development, will be presenting pre-clinical ... Meeting of the American Society of Gene Therapy, which is ... Diego, CA, from Wednesday, May 27th through to Saturday, May ...
... MONICA, Calif., May 27 Cord Blood America, Inc. (OTC ... company ( http://www.cordblood-america.com ) focused ... families nationwide and internationally, said today that it has reduced ... the first five months of 2009. "On April 6th, ...
Cached Biology Technology:Honeywell to Help B. Braun Healthcare Company Double Manufacturing Capacity of Life-Critical Products 2Honeywell to Help B. Braun Healthcare Company Double Manufacturing Capacity of Life-Critical Products 3Honeywell to Help B. Braun Healthcare Company Double Manufacturing Capacity of Life-Critical Products 4Senesco Presents Pre-Clinical Multiple Myeloma Data at the 12th Annual Meeting of the American Society of Gene Therapy 2Senesco Presents Pre-Clinical Multiple Myeloma Data at the 12th Annual Meeting of the American Society of Gene Therapy 3Cord Blood America Says Debt Reduced $4.194 Million in 2009 2
CKB Antibody (N-term) Antigen: This antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide selected within aa 1~100 of human CKB. Molecular Weight: 42644 Da...
...
The antibody recognizes the peptide sequence ESESQGPK (aa 441-448) of human class III beta-tubulin specific for neurones....
... polyacrylamide gel electrophoresis (2D-PAGE) with biological mass ... technology platform for proteomic analysis. 2D-PAGE gels ... limited only in the dynamic range and ... Quantitative image based analysis of separated proteins ...
Biology Products: