Featured Research

from universities, journals, and other organizations

KISS ME DEADLY proteins may help improve crop yields

Date:
May 27, 2013
Source:
Dartmouth College
Summary:
Researchers have identified a new regulator for plant hormone signaling -- the KISS ME DEADLY family of proteins (KMDs) -- that may help to improve production of fruits, vegetables and grains.

Dartmouth College researchers have identified a new regulator for plant hormone signaling -- the KISS ME DEADLY family of proteins (KMDs) – that may help to improve production of fruits, vegetables and grains.

The study's results will be published the week of May 27 in the journal Proceedings of the National Academy of Sciences.

Professor G. Eric Schaller, the paper's senior author, studies the molecular mechanisms by which a plant recognizes a hormone and then responds to it. Among the hormones he studies are "anti-aging" cytokinins, which play critical roles in regulating plant growth and development, including stimulating yield, greening, branching, metabolism and cell division. Cytokinins are used in agriculture for multiple purposes, from crops to golf course greens.

In their PNAS paper, the researchers identify KMDs as a new regulator for cytokinin signaling. To regulate plant growth, plants need to perceive cytokinins and convert this information into changes in gene expression. The KMDs target a key group of cytokinin-regulated transcription factors for destruction, thereby regulating the gene expression changes that occur in response to cytokinin. In other words, increases in KMD levels result in a decreased cytokinin response (or less crop growth), while decreases in KMD levels result in a heightened cytokinin response (or greater crop growth).

The results suggest that KMDs represent a natural means by which plants can regulate the cytokinin response and may serve as a method to help regulate agriculturally important cytokinin responses.

"We expect that a better understanding of cytokinin activity and KMDs could lead to improved agricultural productivity," said Schaller.


Story Source:

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


Journal Reference:

  1. Hyo Jung Kim, Yi-Hsuan Chiang, Joseph J. Kieber, and G. Eric Schaller. SCFKMD controls cytokinin signaling by regulating the degradation of type-B response regulators. Proceedings of the National Academy of Sciences, 2013; DOI: 10.1073/pnas.1300403110

Cite This Page:

Dartmouth College. "KISS ME DEADLY proteins may help improve crop yields." ScienceDaily. ScienceDaily, 27 May 2013. <www.sciencedaily.com/releases/2013/05/130527153652.htm>.
Dartmouth College. (2013, May 27). KISS ME DEADLY proteins may help improve crop yields. ScienceDaily. Retrieved August 27, 2014 from www.sciencedaily.com/releases/2013/05/130527153652.htm
Dartmouth College. "KISS ME DEADLY proteins may help improve crop yields." ScienceDaily. www.sciencedaily.com/releases/2013/05/130527153652.htm (accessed August 27, 2014).

Share This




More Plants & Animals News

Wednesday, August 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Firefighters Rescue Puppy Stuck in Tire

Raw: Firefighters Rescue Puppy Stuck in Tire

AP (Aug. 26, 2014) It took Houston firefighters more than an hour to free a puppy who got its head stuck in a tire. (Aug. 26) Video provided by AP
Powered by NewsLook.com
Have You Ever Been 'Sleep Drunk?' 1 in 7 Has

Have You Ever Been 'Sleep Drunk?' 1 in 7 Has

Newsy (Aug. 26, 2014) A study published in the journal "Neurology" interviewed more than 19,000 people and found 15 percent suffer from being "sleep drunk." Video provided by Newsy
Powered by NewsLook.com
Great White Shark Spotted Off Massachusetts Coast

Great White Shark Spotted Off Massachusetts Coast

Reuters - US Online Video (Aug. 26, 2014) A great white shark is spotted off the shore at Duxbury beach in Massachusetts forcing beach goers out of the water. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Raw: Elk Wanders Into German Office Building

Raw: Elk Wanders Into German Office Building

AP (Aug. 25, 2014) A young bull elk wandered inside the office building of a company in Dresden, Germany on Monday. The elk became trapped between a wall and glass windows while rescue workers tried to rescue him safely. (Aug. 25) 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