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:11/15/2016)... , Nov. 15, 2016  Synthetic Biologics, ... developing therapeutics focused on the gut microbiome, today ... of 25,000,000 shares of its common stock and ... stock at a price to the public of ... to Synthetic Biologics from the offering, excluding the ...
(Date:6/27/2016)... 27, 2016 Research and Markets has announced ... report to their offering. ... to grow at a CAGR of 12.28% during the ... on an in-depth market analysis with inputs from industry experts. The ... coming years. The report also includes a discussion of the key ...
(Date:6/21/2016)... British Columbia , June 21, 2016 /PRNewswire/ ... appointed to the new role of principal product ... been named the director of customer development. Both ... NuData,s chief technical officer. The moves reflect NuData,s ... teams in response to high customer demand and ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... , Dec 5, 2016 Research and ... "Biomarkers - Technologies, Markets and Companies" to their offering. ... , , ... their discovery using various -omics technologies such as proteomics and metabolomics. ... new tests are also based on biomarker. Currently the ...
(Date:12/5/2016)... 2016 /PRNewswire/ - Resverlogix Corp. ("Resverlogix" or the ... and Safety Monitoring Board (DSMB) for the Company,s ... (CVD) patients has completed a second planned safety ... as planned without any modifications. The DSMB reviewed ... or efficacy concerns were identified. The DSMB will ...
(Date:12/4/2016)... ... December 02, 2016 , ... A proposed five-year extension ... federally funded research and development is welcome news for the photonics community, say ... , As part of the National Defense Authorization Act (NDAA) compromise agreement finalized ...
(Date:12/2/2016)... 2016 More than $4.3 million was raised last ... DHMD ). The gala was held at the American Museum ... and honored Alan Alda and ... and medicine and the public understanding of science. Since the ... event has raised $40 million for the Laboratory,s research and ...
Breaking Biology Technology: