Navigation Links
Plant biology discovery furthers scientists' understanding of plant growth and development
Date:3/13/2014

RIVERSIDE, Calif. Auxin, a small molecule, is a plant hormone discovered by Charles Darwin about 100 years ago. Over the years that followed it became understood to be the most important and versatile plant hormone controlling nearly all aspects of plant growth and development, such as bending of shoots toward the source of light (as discovered by Darwin), formation of new leaves, flowers, and roots, growth of roots, and gravity-oriented growth. Just how a small molecule like auxin could play such a pivotal role in plants baffled plant biologists for decades.

Then, about ten years ago, an auxin sensing and signaling system was discovered in the cell's nucleus, but it could not explain all the diverse roles of auxin.

Now, plant cell biologists at the University of California, Riverside have discovered a new auxin sensing and signaling complex, one that is localized on the cell surface rather than in the cell's nucleus. The discovery provides new insights into the mode of auxin action, the researchers say.

"This is a new milestone in auxin biology and will ignite interest in the field," said Zhenbiao Yang, a professor of cell biology in the Department of Botany and Plant Sciences, and the leader of the research project. "Our findings conclusively demonstrate the existence of an extracellular auxin sensing system in plants, which had long been proposed but remained elusive. Further, we have uncovered the decades-long mystery of how ABP1, an auxin-binding protein, works to control plant developmental processes."

ABP1 was identified more than 40 years ago, but its role was hotly debated among plant biologists because its mode of action remained unclear until the recent discovery by Yang's team.

The team also showed that the cell surface auxin sensing system involves "transmembrane receptor kin
'/>"/>

Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6050
University of California - Riverside
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Global survey of urban birds and plants find more diversity than expected
2. Exotic plant species alter ecosystem productivity
3. Excessive deer populations hurt native plant biodiversity
4. Small biomass power plants could help rural economies, stabilize national power grid, MU study finds
5. Serpentine ecosystems shed light on the nature of plant adaptation and speciation
6. Europe must improve its response to the threat of plant pests and diseases
7. U of M-led study finds herbivores can offset loss of plant biodiversity in grassland
8. Transplanted human umbilical cord blood cells improved heart function in rat model of MI
9. Silk-based surgical implants could offer a better way to repair broken bones
10. Plant extract offers hope for infant motor neuron therapy
11. Are plants more intelligent than we assumed?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Plant biology discovery furthers scientists' understanding of plant growth and development
(Date:12/10/2014)... -- You,ve been here before: you desperately need to sign ... site key or the answer to your secret question. What,s ... Today, Hoyos Labs , a digital infrastructure ... put an end to the frustration that comes with usernames, ... leverages a user,s smartphone to acquire his or her biometrics ...
(Date:12/10/2014)... , Dec. 08, 2014 Research and Markets ... addition of the "Biometrics Market in Japan ... http://photos.prnewswire.com/prnh/20130307/600769 The ... such as rural banking and upgradation of the ... witnessed in the market. Besides the aforementioned projects, ...
(Date:12/4/2014)... PALM BEACH GARDENS, Fla. , Dec. 3, ... identity management solutions, today announced that its DigitalPersona ... 4500 fingerprint readers have been deployed throughout ... Carolina , South Carolina ... network headquartered in Southern Pines, North ...
Breaking Biology News(10 mins):The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3
... food becomes scarce, animal populations exploit a wider range ... at different sites in California,s coastal waters were not ... population is higher where food is limited. But this ... sea otters, which instead showed dietary specialization in response ...
... some of the genetic secrets that enable pine ... disease, uncovering critical new information about forests natural ... this genetic analysis will allow forest stewardship programs ... that could in time repel insects such as ...
... --- Mother Nature regulates critical cellular activities in plants ... specific biochemical reactions. Looking to learn from nature, a ... million grant from the Air Force Office of Scientific ... for military and civilian applications. The grant ...
Cached Biology News:Sea otter study reveals striking variability in diets and feeding strategies 2Sea otter study reveals striking variability in diets and feeding strategies 3UBC discovery unlocks tree genetics, gives new hope for pine beetle defense 2Team of chemists receives $5 million grant to develop enzyme mimics 2
(Date:12/17/2014)... The Activated Carbon Manufacturing industry ... IBISWorld updated its original industry research report. , ... intensified focus on environmental policy. Over the five years ... power plants and a range of other industrial facilities ... Sarah Kahn, “a range of downstream industrial sectors rely ...
(Date:12/17/2014)... Achim Noack has been named global vice president ... position, Noack will assist Jerry Stoller, CEO and president ... and supervise global marketing management and implementation of new ... and experience in the crop protection industry,” says Jerry ... thinking will be a great asset for Stoller Group, ...
(Date:12/17/2014)... This report is a professional ... For an overview analysis, the report introduces quartz ... structure, industry overview, policy analysis, and news analysis, ... has witnessed rapid development with key manufacturers increasing ... report mentions quartz tubing upstream raw materials and ...
(Date:12/17/2014)... Diego, CA (PRWEB) December 17, 2014 ... and activation agency and member of the Huntsworth Health ... Gonzales to its executive team. In her role, Gonzales ... , “We are incredibly honored to welcome a ... Agency Chief and CEO, Gaëtan Fraikin. “She is a ...
Breaking Biology Technology:Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 2Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 3Achim Noack Joins Stoller Group as Global Vice President of Marketing and Administration 22020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2Audacity Welcomes Healthcare Communications Expert Jamie Gonzales as Senior Vice President of Client Services 2
... Inc. (Nasdaq: EMIS ) has agreed to ... LLY ) to settle the pending litigation ... submit a Stipulation of Dismissal with,Prejudice of their ... the,Southern District of Indiana. Additional terms and conditions ...
... Morria Biopharmaceuticals Plc, a,private biopharmaceutical company ... announced it has appointed Dr.,Johnson Lau and ... directors. Dr. Johnson Lau (MBBS, MD, ... the,medical, pharmaceutical and corporate fields, having a ...
... f-star, an antibody,engineering company developing novel antibodies ... Antibody Technology, today announced the,appointment of Dr. ... Mudde has,over 20 years of experience in ... research and development. He comes to f-star,from ...
Cached Biology Technology:Emisphere Technologies, Inc. and Eli Lilly and Company Settle Ongoing Litigation 2Morria Biopharmaceuticals Plc Appoints Dr. Johnson Lau and Dr. David Sidransky to Board of Directors 2Antibody Engineering Company f-Star Appoints Geert Mudde as Chief Scientific Officer 2
... StabilZyme HRP Conjugate Stabilizer is an aqueous ... and other non-toxic stabilizing chemicals in a ... 6.7. This product contains a ... 20 ppm Proclin 300 (Rohm and Haas ...
Preparation Note: Prepared by method of Wimmer, E., et al., Biochemistry, 7, 2623 (1968). Quality Clarifier: Acceptor Activity: approx. 1000 picomoles phenylalanine per A 260 unit (not determined b...
This buffer is Specifically formulated to be used with Endogen's Poly-HRP Streptavidin...
... V-106 voice-coil scanning and positioning system ... samples have to be positioned or ... resolution. It provides superior responsiveness compared ... The mechanics (X or XY stage) ...
Biology Products: