Featured Research

from universities, journals, and other organizations

Tomato Stands Firm In Face Of Fungus

Date:
May 12, 2008
Source:
Public Library of Science
Summary:
Scientists have discovered how to keep one's tomatoes from wilting -- the answer lies at the molecular level. Farmers and fellow agriculturalists are continuously battling the ability of plant pathogens to co-evolve alongside their host's immune system. In agriculture, the most environmentally friendly way to combat the evolutionary change in plant diseases is to make use of the innate immune system of plants.

Scientists at the University of Amsterdam have discovered how to keep one's tomatoes from wilting -- the answer lies at the molecular level. The story of how the plant beat the pathogen, and what it means for combating other plant diseases has just been published.

Farmers and fellow agriculturalists are continuously battling the ability of plant pathogens to co-evolve alongside their host's immune system. In agriculture, the most environmentally friendly way to combat the evolutionary change in plant diseases is to make use of the innate immune system of plants. Growers can cross into targeted plant varieties certain polymorphic resistance genes that occur in related plants, thereby naturally boosting the plant's immune system.

In this study, Dr. Martijn Rep and his team explored the molecular basis of this previously established concept of crossing in resistance genes. The authors considered the interaction between a fungal pathogen, Fusarium oxysporum, and the tomato plant in which the fungus causes Fusarium wilt disease.

The group found that a small protein secreted by some strains of the fungus causes it to overcome two of the tomato's disease resistance genes. However, a third resistance gene was shown to specifically target this suppressor protein, rendering the plant fully immune to any fungal strain that produces the protein. Thus, with the right set of resistance genes, tomatoes can beat the fungus despite the latter's "molecular tricks."

"This molecular analysis has revealed a hitherto unpredicted strategy for durable disease control based on resistance gene combinations," say the authors.


Story Source:

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


Journal Reference:

  1. Petra M. Houterman, Ben J. C. Cornelissen, Martijn Rep, Brendan P. Cormack. Suppression of Plant Resistance Gene-Based Immunity by a Fungal Effector. PLoS Pathogens, 2008; 4 (5): e1000061 DOI: 10.1371/journal.ppat.1000061

Cite This Page:

Public Library of Science. "Tomato Stands Firm In Face Of Fungus." ScienceDaily. ScienceDaily, 12 May 2008. <www.sciencedaily.com/releases/2008/05/080508222429.htm>.
Public Library of Science. (2008, May 12). Tomato Stands Firm In Face Of Fungus. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2008/05/080508222429.htm
Public Library of Science. "Tomato Stands Firm In Face Of Fungus." ScienceDaily. www.sciencedaily.com/releases/2008/05/080508222429.htm (accessed April 23, 2014).

Share This



More Plants & Animals News

Wednesday, April 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Monkeys Are Better At Math Than We Thought, Study Shows

Monkeys Are Better At Math Than We Thought, Study Shows

Newsy (Apr. 23, 2014) A Harvard University study suggests monkeys can use symbols to perform basic math calculations. Video provided by Newsy
Powered by NewsLook.com
Raw: Leopard Bites Man in India

Raw: Leopard Bites Man in India

AP (Apr. 22, 2014) A leopard caused panic in the city of Chandrapur on Monday when it sprung from the roof of a house and charged at rescue workers. (April 22) Video provided by AP
Powered by NewsLook.com
Iowa College Finds Beauty in Bulldogs

Iowa College Finds Beauty in Bulldogs

AP (Apr. 22, 2014) Drake University hosts 35th annual Beautiful Bulldog Contest. (April 21) Video provided by AP
Powered by NewsLook.com
805-Pound Shark Caught Off The Coast Of Florida

805-Pound Shark Caught Off The Coast Of Florida

Newsy (Apr. 22, 2014) One Florida fisherman caught a 805-pound shark off the coast of Florida earlier this month. 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