Navigation Links
New technique enables assessment of drought performance
Date:11/12/2008

Measurement of chlorophyll fluorescence is an effective way of determining how well plants can cope with low-water conditions. The technique described in the open access journal Plant Methods, published by BioMed Central, allows a quantitative and precise determination of viability in intact, drought-stressed plants.

Due to the increasing demands of industrial, municipal and agricultural consumption on dwindling water supplies, botanists are increasingly engaged in efforts to cultivate plants that have low water requirements. Barry Pogson led a team of researchers from the Australian National University who investigated whether chlorophyll fluorescence could be used in the assessment of plant water status during such studies. He said "We found that plants' viability during increasing water deficit could be measured and quantified by measuring changes to the maximum efficiency of photosystem II (Fv/Fm), and that this was easily measurable by chlorophyll fluorometry."

Other methods of assessing plants' performance under water deficit have serious drawbacks. Methods that involve detaching parts of the plant are destructive and survival studies rely on qualitative observation of physical symptoms of water deficit stress such as turgor loss, chlorosis, and other qualities that can vary greatly between specimens and are also sensitive to experimental conditions. Chlorophyll fluorescence is non-invasive and minimal technical expertise and a basic understanding of fluorometry. Pogson said "By correlating the decline in the Fv/Fm parameter to loss of viability, our procedure allows the monitoring of survival under water deficit conditions, namely defining a threshold of 33% of well-watered Fv/Fm values."

This procedure may complement existing methods of evaluating drought performance while also increasing the number of tools available for assessment of other plant stresses.


'/>"/>

Contact: Graeme Baldwin
graeme.baldwin@biomedcentral.com
44-020-707-94804
BioMed Central
Source:Eurekalert

Page: 1

Related biology news :

1. NJIT professor finds engineering technique to identify disease-causing genes
2. New technique sees into tissue at greater depth, resolution
3. Cryopreservation techniques bring hopes for women cancer victims and endangered species
4. Improved technique determines structure in membrane proteins
5. Resuscitation technique after brain injury may do more harm than good
6. New electrostatic-based DNA microarray technique could revolutionize medical diagnostics
7. Technique used in human ankle injuries modified to treat dogs knees
8. Dinosaur diggers bring mobile lab, new techniques to Eastern Montana
9. Spradling receives Gruber Foundation Genetics Prize for new genetic techniques
10. New technique allows targeted inactivation of genes in research model
11. Spin control: New technique sorts nanotubes by length
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/30/2017)... , June 30, 2017 Today, American ... and supplier of face and eye tracking software, ... Product provider program. "Artificial intelligence ... way to monitor a driver,s attentiveness levels while ... being able to detect fatigue and prevent potential ...
(Date:5/16/2017)... , May 16, 2017   Bridge Patient ... organizations, and MD EMR Systems , an ... partner for GE, have established a partnership to ... product and the GE Centricity™ products, including Centricity ... These new integrations will allow ...
(Date:4/17/2017)... 2017 NXT-ID, Inc. (NASDAQ: NXTD ) ... of its 2016 Annual Report on Form 10-K on Thursday April ... ... in the Investor Relations section of the Company,s website at ... at http://www.sec.gov . 2016 Year Highlights: ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... 12, 2017 , ... AMRI, a global contract research, development ... patient outcomes and quality of life, will now be offering its impurity solutions ... new regulatory requirements for all new drug products, including the finalization of ICH ...
(Date:10/11/2017)... ... October 11, 2017 , ... The CRISPR-Cas9 ... enabling overexpression experiments and avoiding the use of exogenous expression plasmids. The simplicity ... for performing systematic gain-of-function studies. , This complement to loss-of-function studies, such ...
(Date:10/11/2017)... Md. (PRWEB) , ... October 11, 2017 , ... ... digital pathology, announced today it will be hosting a Webinar titled, “Pathology is ... Advanced Pathology Associates , on digital pathology adoption best practices and how Proscia ...
(Date:10/11/2017)... ... 11, 2017 , ... Disappearing forests and increased emissions are the main causes ... each year. Especially those living in larger cities are affected by air pollution related ... the most pollution-affected countries globally - decided to take action. , “I knew I ...
Breaking Biology Technology: