Featured Research

from universities, journals, and other organizations

'Jekyll And Hyde' Bacteria Offer Pest Control Clue

Date:
December 20, 2007
Source:
University of York
Summary:
New research has revealed so-called 'Jekyll and Hyde' bacteria, suggesting a novel way to control insect pests without using insecticides. Scientists studied the relationship between plant-dwelling insects and the bacteria that live in them -- and discovered an unexpected interaction.

New research at York has revealed so-called ‘Jekyll and Hyde’ bacteria, suggesting a novel way to control insect pests without using insecticides.

Researchers at the University of York studied the relationship between plant-dwelling insects and the bacteria that live in them — and discovered an unexpected interaction.

Plants are not ‘easy meat’ for insects. In fact, many insects thrive on plant food only because of the presence of a third party: symbiotic bacteria that live in the insects and provide extra nutrients.

While studying interactions between black bean aphids and their associated bacteria, York researchers discovered an intriguing new category of organism that they dubbed ‘Jekyll and Hyde’ bacteria.

Black bean aphids can live on a number of different plant species. In most situations, their internal bacteria are harmless or even beneficial — this is their ‘Jekyll’ side.

But on certain plants, the relationship between insect and bacteria changes with the microscopic organisms exhibiting a disruptive ‘Hyde’ side. The insects grow and reproduce very slowly, while the bacteria themselves proliferate to very high densities in a short time — almost as if the bacteria were ‘betraying’ their hosts.

Further experiments have suggested that the factor triggering this strange change is the composition of nutrients in the plants where the creatures live.

The results, published in the Proceedings of the Royal Society B, may point the way to new methods to control aphids and other insect pests.

Professor Angela Douglas, of the University’s Department of Biology, said: "We now have the basis to explore precisely how these insect pests control their bacteria — and perhaps to develop ways to make the bacteria ‘turn nasty’ on the insects. These findings offer exciting new opportunities to control aphids and other pests without using insecticides."


Story Source:

The above story is based on materials provided by University of York. Note: Materials may be edited for content and length.


Cite This Page:

University of York. "'Jekyll And Hyde' Bacteria Offer Pest Control Clue." ScienceDaily. ScienceDaily, 20 December 2007. <www.sciencedaily.com/releases/2007/12/071219115306.htm>.
University of York. (2007, December 20). 'Jekyll And Hyde' Bacteria Offer Pest Control Clue. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2007/12/071219115306.htm
University of York. "'Jekyll And Hyde' Bacteria Offer Pest Control Clue." ScienceDaily. www.sciencedaily.com/releases/2007/12/071219115306.htm (accessed September 18, 2014).

Share This



More Plants & Animals News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chimp Violence Study Renews Debate On Why They Kill

Chimp Violence Study Renews Debate On Why They Kill

Newsy (Sep. 17, 2014) The study weighs in on a debate over whether chimps are naturally violent or become that way due to human interference in the environment. Video provided by Newsy
Powered by NewsLook.com
Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
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