Featured Research

from universities, journals, and other organizations

Tobacco protein enhances crop immune systems

Date:
July 11, 2012
Source:
ResearchSEA
Summary:
A component in tobacco that makes crop immune systems more resistant to viral attacks.

The tobacco plant's protein could be used to enhance existing crop immune systems.
Credit: Dennis Tang

A study led by Associate Prof. Kenji Nakahara at Hokkaido University in Japan has found a component in tobacco that makes crop immune systems more resistant to viral attacks.

Related Articles


Although crops have a general defense mechanism in order to fight against viruses, their invaders counteract this defense by suppressing the plant immune response. Evidence from recent studies implied that plants have developed an additional set of countermeasures to combat the virus's immune suppression tactics.

In order to examine how plants do this, the researchers set out to find the mechanisms involved. Their results appear in the Proceedings of the National Academy of Sciences (PNAS).

They found rgs-CaM, otherwise known as "tobacco calmodulin-like protein," a calcium-binding messenger protein (Calmodulin is an abbreviation for "CALcium MODulated proteIN). In tobacco this protein binds to the viral (RNA interference) suppressors (molecules produced by the virus that chemically counteract the plants' own defenses) and inhibits the virus from impeding the plant's defenses.

These findings have the potential to enhance the immune systems for crops that are vulnerable to pesticide-resistant viruses. The results of this research may well have an impact beyond tobacco crops. "Because most viruses encode RNAi suppressors, this study may contribute to the development of a molecular breeding strategy to confer resistance other viruses in crops," said Associate Prof. Nakahara.


Story Source:

The above story is based on materials provided by ResearchSEA. The original article was written by Aya Kawanishi. Note: Materials may be edited for content and length.


Journal Reference:

  1. K. S. Nakahara, C. Masuta, S. Yamada, H. Shimura, Y. Kashihara, T. S. Wada, A. Meguro, K. Goto, K. Tadamura, K. Sueda, T. Sekiguchi, J. Shao, N. Itchoda, T. Matsumura, M. Igarashi, K. Ito, R. W. Carthew, I. Uyeda. Tobacco calmodulin-like protein provides secondary defense by binding to and directing degradation of virus RNA silencing suppressors. Proceedings of the National Academy of Sciences, 2012; 109 (25): 10113 DOI: 10.1073/pnas.1201628109

Cite This Page:

ResearchSEA. "Tobacco protein enhances crop immune systems." ScienceDaily. ScienceDaily, 11 July 2012. <www.sciencedaily.com/releases/2012/07/120711134532.htm>.
ResearchSEA. (2012, July 11). Tobacco protein enhances crop immune systems. ScienceDaily. Retrieved January 25, 2015 from www.sciencedaily.com/releases/2012/07/120711134532.htm
ResearchSEA. "Tobacco protein enhances crop immune systems." ScienceDaily. www.sciencedaily.com/releases/2012/07/120711134532.htm (accessed January 25, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, January 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Florida Might Legalize Black Bear Hunting

Florida Might Legalize Black Bear Hunting

Newsy (Jan. 24, 2015) A string of black bear attacks has Florida officials considering lifting the ban on hunting the animals to control their population. Video provided by Newsy
Powered by NewsLook.com
Ebola Killing Large Portion Of Ape Population

Ebola Killing Large Portion Of Ape Population

Newsy (Jan. 23, 2015) Experts estimate Ebola has wiped out one-third of the world&apos;s gorillas and chimpanzees. Video provided by Newsy
Powered by NewsLook.com
Controversy Shrouds Captive Killer Whale in Miami

Controversy Shrouds Captive Killer Whale in Miami

Reuters - Light News Video Online (Jan. 23, 2015) Activists hope the National Oceanic and Atmospheric Agency (NOAA) will label killer whales endangered, allowing lawyers to sue a Miami aquarium to release an orca into the wild after 44 years. Jillian Kitchener reports. Video provided by Reuters
Powered by NewsLook.com
‘Healthy’ Foods That Surprisingly Pack on Pounds

‘Healthy’ Foods That Surprisingly Pack on Pounds

Buzz60 (Jan. 23, 2015) Some &apos;healthy&apos; foods are actually fattening. Fitness and nutrition expert John Basedow (@JohnBasedow) shines a light on the sneaky foods like nuts, seeds, granola, trail mix, avocados, guacamole, olive oil, peanut butter, fruit juices and salads that are good for you...but not so much for your waistline. Video provided by Buzz60
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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