Featured Research

from universities, journals, and other organizations

Drought Tolerant Plants? New Technique Enables Assessment Of Drought Performance

Date:
November 13, 2008
Source:
BioMed Central/Plant Methods
Summary:
Measurement of chlorophyll fluorescence is an effective way of determining how well plants can cope with low-water conditions. The technique allows a quantitative and precise determination of viability in intact, drought-stressed plants.

Drought tolerance in plants. Botanists are increasingly engaged in efforts to cultivate plants that have low water requirements.
Credit: iStockphoto/Alexander Hafemann

Measurement of chlorophyll fluorescence is an effective way of determining how well plants can cope with low-water conditions. The technique 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.


Story Source:

The above story is based on materials provided by BioMed Central/Plant Methods. Note: Materials may be edited for content and length.


Journal Reference:

  1. Nick S Woo, Murray R Badger and Barry J Pogson. A rapid, non-invasive procedure for quantitative assessment of drought survival using chlorophyll fluorescence. Plant Methods, 2008, 4:27 DOI: 10.1186/1746-4811-4-27

Cite This Page:

BioMed Central/Plant Methods. "Drought Tolerant Plants? New Technique Enables Assessment Of Drought Performance." ScienceDaily. ScienceDaily, 13 November 2008. <www.sciencedaily.com/releases/2008/11/081112075037.htm>.
BioMed Central/Plant Methods. (2008, November 13). Drought Tolerant Plants? New Technique Enables Assessment Of Drought Performance. ScienceDaily. Retrieved April 21, 2014 from www.sciencedaily.com/releases/2008/11/081112075037.htm
BioMed Central/Plant Methods. "Drought Tolerant Plants? New Technique Enables Assessment Of Drought Performance." ScienceDaily. www.sciencedaily.com/releases/2008/11/081112075037.htm (accessed April 21, 2014).

Share This



More Plants & Animals News

Monday, April 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Mich. Boy Unearths 10,000-Year-Old Mastodon Tooth

Mich. Boy Unearths 10,000-Year-Old Mastodon Tooth

Newsy (Apr. 20, 2014) A 9-year-old Michigan boy was exploring a creek when he came across a 10,000-year-old tooth from a prehistoric mastodon. Video provided by Newsy
Powered by NewsLook.com
Vermont Goat Meat Gives Refugees Taste of Home

Vermont Goat Meat Gives Refugees Taste of Home

AP (Apr. 18, 2014) Dairy farmers and ethnic groups in Vermont are both benefiting from a unique collaborative effort that's feeding a growing need for fresh and affordable goat meat. (April 18) Video provided by AP
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com
First Ever 'Female Penis' Discovered In Animal Kingdom

First Ever 'Female Penis' Discovered In Animal Kingdom

Newsy (Apr. 18, 2014) Not only are these newly discovered bugs' sex organs reversed, but they also mate for up to 70 hours. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins