Navigation Links
UBC researchers discover key mechanism that regulates shape and growth of plants
Date:8/16/2011

UBC researchers have discovered a key mechanism that -- much like a construction site foreperson -- controls the direction of plant growth as well as the physical properties of the biopolymers that plants produce.

The finding is a major clue in a 50-year-long quest to explain how plants coordinate the behaviour of millions of cells as they grow upward to compete for light, penetrate soil to obtain nutrients and water, and even open petals to flower.

"We've known for decades that structures in plants called microtubules act as scaffolding to define the direction of cell expansion," says Professor Geoffrey Wasteneys, a UBC botanist and Canada Research Chair in Plant Cell Biology.

"These are tiny multipurpose cylinders that grow, shrink and self-organize to transport cargo, capture and position large structures such as chromosomes, and establish the shape of cells. But we haven't been able to determine how these tiny microtubules are organized into scaffolds in the first place."

An interdisciplinary team of plant cell biologists and mathematicians led by Wasteneys discovered that the inherent geometry of the cell itself plays an important role in the self-organization of microtubules into parallel arrays that guide cell growth and division. They also identified that a protein called CLASP plays a key role as a foreperson, modulating the geometric constraints of the cell.

Their findings will be published in the August 16 issue of the journal Nature Communications.

The research team used a specialized microscope that collects 3D images of plant components genetically engineered to fluoresce when irradiated with specially filtered light. They observed a striking difference in the way microtubules were arranged in normal plants compared to those of a dwarf mutant that fails to produce CLASP.

"Paradoxically, the microtubules appeared to be better organized in the severely stunted mutant plants than
'/>"/>

Contact: Prof. Geoffrey Wasteneys
geoffrey.wasteneys@ubc.ca
778-994-1070
University of British Columbia
Source:Eurekalert

Page: 1 2

Related biology news :

1. NC State researchers get to root of parasite genome
2. Researchers find animal with ability to survive climate change
3. Researchers find an essential gene for forming ears of corn
4. Researchers note differences between people and animals on calorie restriction
5. Researchers study acoustic communication in deep-sea fish
6. Researchers discover that growing up too fast may mean dying young in honey bees
7. Researchers study how pistachios may improve heart health
8. UI researchers find potentially toxic substance present in Chicago air
9. Researchers develop new self-training gene prediction program for fungi
10. Case Western Reserve University researchers track Chernobyl fallout
11. Childrens National researchers develop novel anti-tumor vaccine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2015)... PALM BEACH GARDENS, Fla. , March 24, ... of biometric identity management solutions, today announced that ... enabling premium clothing accessory retailer Goorin Bros ... login. The Crossmatch biometrics-based solution secures access to ... customers from the increased risk of data breaches. ...
(Date:3/23/2015)... 23, 2015  In the 2014 fiscal year, irs.gov ... losses. This figure accounts for a fraction of the ... Nilson Report, exceeds $11 billion globally. The polygraph has ... crime has occurred. Investor Mark Saint Juste ... Joe Paolella partnered to administer the test in ...
(Date:3/20/2015)... , Mar. 19, 2015 Research and Markets ... "Hand Geometry - Global Strategic Business Report" report ... markets for Hand Geometry in US$ Thousands. The report provides ... , Japan , Europe ... , and Rest of World. Annual estimates ...
Breaking Biology News(10 mins):Crossmatch Fingerprint Readers Help Retailer Prevent Data Breaches at Point-of-Sale 2Polygraph Test Now Used to Protect Investors From Fraud 2Polygraph Test Now Used to Protect Investors From Fraud 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4
... Patients who have high blood sugar before undergoing ... clots, deep vein thrombosis and even pulmonary embolism ... of anesthesiology in the Artificial Pancreas Center at ... Philadelphia, and his colleagues examined records of nearly ...
... protect against some food allergies. Kefir, a traditional fermented drink, ... is often used to wean babies, as it is easily ... the age of three, with around 5-8% of infants at ... food. , "Friendly" bacteria in kefir may play a role ...
... in the event of a large-scale smallpox bioterrorist attack ... by researchers at Fred Hutchinson Cancer Research Center that ... , Instead, the current U.S. government policy of post-release ... workers and close contacts would be sufficient to thwart ...
Cached Biology News:Jefferson scientists find high glucose before surgery raises risk of dangerous complications 2Friendly bacteria in alcoholic milkshake could fight food allergies 2Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack 2Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack 3Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack 4Mass vaccination unnecessary in the event of a large bioterrorist US smallpox attack 5
(Date:4/21/2015)... and RESEARCH TRIANGLE PARK, N.C. ... (NASDAQ: UTHR ) announced today that it will ... open on Tuesday, April 28, 2015. United ... 28, 2015, at 9:00 a.m. Eastern Time.  The teleconference ... 1-970-315-0533.  A rebroadcast of the teleconference will be available ...
(Date:4/21/2015)... Thornton Cleveleys (UK) (PRWEB) April 21, 2015 ... PEEK* technology and its clinical applications will ... Meeting. Participants include engineers, scientists, regulators and ... worldwide. The meeting is sponsored by Invibio ... PEEK polymer-based biomaterials, a specialist in manufacturing ...
(Date:4/21/2015)... CA (PRWEB) April 21, 2015 Whether it’s ... a lab, or bolted to a Kessler CineDrive ... or at the beach, the TS3-H is designed to help ... on a brand-new state-of-the-art 5MP sensor, the TS5-H offers the ... with superior imaging characteristics. , According to Tom Boldt ...
(Date:4/20/2015)... -- Stent retriever thrombectomy, an endovascular technique that ... reduced disability after stroke, according to a groundbreaking ... the Society of Vascular and Interventional Neurology (SVIN).  ... forward that will change the way we approach ... who is associate professor of Neurology and Neurosurgery ...
Breaking Biology Technology:2nd International PEEK Meeting: Invibio Biomaterial Solutions spearheads medical research for implantable PEEK polymer devices 22nd International PEEK Meeting: Invibio Biomaterial Solutions spearheads medical research for implantable PEEK polymer devices 3Fastec Imaging Releases the TS5-H High Definition High-Speed Camera 2Fastec Imaging Releases the TS5-H High Definition High-Speed Camera 3SVIN President Tudor Jovin, MD, Co-Leads Groundbreaking Stroke Study In The New England Journal Of Medicine 2SVIN President Tudor Jovin, MD, Co-Leads Groundbreaking Stroke Study In The New England Journal Of Medicine 3
... will potentially enable access to MRI exams for ... implantable cardiac ... Boston,Scientific Corporation (NYSE: BSX ) and Surgi-Vision, ... development arrangement for,magnetic resonance imaging (MRI)-safe technology. Physician implanters ...
... ... 2008, FT. MYERS, Fla., April 15 ... the,Securities and Exchange Commission its annual report on Form 10-KSB for the,year ended ... http://www.SEC.gov ., The audited financial statements for the year ended December ...
... April 15 Arpida Ltd.,(SWX: ARPN) today announced ... Thursday,17 April 2008 at 8.30am CET. In this ... need and developments in the area of anti-infective,drugs ... meeting of the Anti-Infective,Drugs Advisory Committee. During that ...
Cached Biology Technology:Boston Scientific and Surgi-Vision Announce Licensing Agreement for MRI-Safe Technology 2Boston Scientific and Surgi-Vision Announce Licensing Agreement for MRI-Safe Technology 3NeoGenomics Files Annual Report on Form 10-KSB with the SEC 2Arpida Announces Conference Call on 17 April 2Arpida Announces Conference Call on 17 April 3
Mouse monoclonal [7B9] to beta II Tubulin ( Abpromise for all tested applications). Antigen: Synthetic peptide, CEEEEGEDEA found at the c-terminus of beta II tubulin. Entrez GeneID: 10383 ...
Polymerase (RNA) II (DNA directed) polypeptide L...
...
...
Biology Products: