Navigation Links
First-of-its-kind fluorescence map offers a new view of the world's land plants
Date:6/6/2011

>While additional research is required to sort out the subtleties of the fluorescence signal, the new maps are significant as they demonstrate the feasibility of measuring fluorescence from space.

In the future, the Goddard team expects that fluorescence measurements will complement existing measures of "greenness" in a variety of ways. They could help farmers respond to extreme weather or make it easier for aid workers to detect and respond to famines. Fluorescence could also lead to breakthroughs in scientists' understanding of how carbon cycles through ecosystems -- one of the key areas of uncertainty in climate science.

"What's exciting about this is that we've proven the concept," said Joanna Joiner, the deputy project scientist for NASA's Aura mission and the leader of the Goddard team that created the maps. "The specific applications will come later."

Glowing Plants?

The same mechanism that makes plants fluoresce causes a range of everyday objects -- ground-up plant leaves, white shirts, jellyfish, and even blood and urine -- to glow intensely under black light.

However, plants fluoresce in specific parts of the blue, green, red, and far-red spectrum. Chlorophyll fluorescence from green foliage, for example, is produced at the red and far-red wavelengths.

"In plants, fluorescence is not something that you can see with your naked eye because background light overwhelms it," explained Joiner, the lead author of the paper. When sunlight strikes a leaf, disc-like green structures called chloroplasts absorb most of the light and convert it into carbohydrates through photosynthesis.

Chloroplasts re-emit about two percent of incoming light at longer, redder wavelengths. This re-emitted light -- fluorescent light -- is what the Goddard scientists measured to create their map. Fluorescence is different than bioluminescence, the chemically-driven mechanism lightning bugs and many marine species use
'/>"/>

Contact: Adam Voiland
adam.p.voiland@nasa.gov
301-614-6949
NASA/Goddard Space Flight Center
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. American Sociological Association launches first-of-its-kind teaching tool
2. First-of-its-kind map details the height of the globes forests
3. First-of-its-kind study shows benefits of electrical stimulation therapy for people paralyzed by spinal cord injury
4. Pitt researchers use fluorescence to develop method for detecting mercury in fish
5. Novel technique for fluorescence tomography of tumors in living animals
6. Fluorescence monitoring and effect of photodynamic therapy for port wine stains
7. Worm genome offers clues to evolution of parasitism
8. Advance offers revolution in food safety testing
9. Light pollution offers new global measure of coral reef health
10. Rong Li Lab offers insight into adaptive ability of cells
11. International public-private partnership offers new paradigm for medicinal chemistry
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
First-of-its-kind fluorescence map offers a new view of the world's land plants
(Date:8/31/2014)... Montral, August 31, ... Nature Neuroscience journal by, Sylvain Williams, PhD, and his ... University Institute and McGill University, opens the door towards better ... as well of the role of an essential element of ... In 2009, they developed a unique approach namely, the ...
(Date:8/29/2014)... Until recently, little has been known about what genetic ... team of scientists, one of whom is a University ... showing that genes controlling the development of the brain ... domestication., The study was published Aug. 28 in ... It is online at http://www.sciencemag.org/ ., The domestication ...
(Date:8/29/2014)... the type and number of connections in transcription factor ... robustness in a study published in PLOS Computational ... the assortativity signature contributes to a network,s resilience against ... the out-out assortativity of TFN models has a greater ... three types of assortativity," said Dov A. Pechenick, PhD, ...
Breaking Biology News(10 mins):Memory and Alzheimer's: Towards a better comprehension of the dynamic mechanisms 2New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3Assortativity signatures of transcription factor networks contribute to robustness 2
... MADISON Failing to see the forest for ... declining health of Wisconsin,s forest ecosystems. Even areas ... as forests are increasingly fragmented by roads and development, ... fields, housing tracts, and strip malls, say University of ...
... rings are acclaimed in representing natural climate archives. ... growth of these annual rings depend mainly on temperature ... slight seasonal variations, the correlation is not so ... for Geosciences and their colleagues of the Australian National ...
... Versartis, Inc., an emerging company developing novel biologics ... presented data for its long-acting product candidates, VRS-317 (hGH-rPEG) ... (IL-1ra-rPEG) for treatment of type 1 and type 2 ... DC. Versartis, through a unique licensing agreement with Amunix, ...
Cached Biology News:Isolated forest patches lose species, diversity 2Isolated forest patches lose species, diversity 3Australia's climate: Drought and flooding in annual rings of tropical trees 2Versartis presents positive preclinical data on 2 product candidates at ENDO 09 2
(Date:8/29/2014)... Antonio, TX (PRWEB) August 29, 2014 ... and ISO 13485:2003 certified, GAMP® 5 compliant imaging ... awarded an international Phase II clinical trial to ... lymphoma. , Throughout this trial, Intrinsic Imaging will ... not limited to, protocol and charter development, site ...
(Date:8/28/2014)... 2014 Best Sanitizers, Inc., the first ... hand sanitizer, asks food processors and food handling professionals ... sanitizer they’re currently using to Best Sanitizers’ Alpet® ... critical to fighting cross-contamination and the spread of pathogens ... there are key criteria that make a hand sanitizer ...
(Date:8/28/2014)... are important devices in spintronics, an electronic which ... electrons but also on their spin and the ... electric into magnetic signals and vice versa. Recently, ... the Institute of Physics at Johannes Gutenberg University ... Prague, and Japan, has for the first time ...
(Date:8/28/2014)... month, executives from clinical trial marketing firm BBK Worldwide will ... Patient-Centered Clinical Trials 2014 , to be held at the ... 4-5. Patient recruitment experts Bonnie A. Brescia , ... insights on the benefits of employing an effective patient engagement ... to mobile apps – can be used to drive study ...
Breaking Biology Technology:Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3A new, tunable device for spintronics 2A new, tunable device for spintronics 3BBK Worldwide Leads Sessions at Key September Events 2
... Anesiva,Inc. (Nasdaq: ANSV ) announced today the ... of its common stock at $4.05 per share, ... on December 12, 2007, for,approximately $45 million in ... $50 million if the underwriters,over-allotment option described below ...
... 13 Synosia Therapeutics today,announced the appointment of ... officer, effective immediately., Dr Blanc, who will ... joins from Syngenta, where he created and led ... and an,experienced biotech entrepreneur, Dr. Blanc helped biotech ...
... Neurocrine Biosciences,Inc. (Nasdaq: NBIX ) announced today ... webcast to provide an update on indiplon Thursday,morning, December ... a.m. Eastern,Time (6:00 a.m. Pacific Time)., Participants can ... 785-424-1071 (International) using the conference,ID: NEURO12. The call can ...
Cached Biology Technology:Anesiva Raises $45 Million in Common Stock Offering 2Synosia Therapeutics Announces Appointment of Chief Business Officer 2
EDG-1 Western blot control Source: Cell Lysate Application: Western Blotting Control...
Complete cell culture media with cytokines...
...
BD IMagnet 1 each...
Biology Products: