Navigation Links
Scientists watch cell-shape process for first time
Date:10/10/2010

Palo Alto, CAResearchers at the Carnegie Institution for Science, with colleagues at the Nara Institute of Science and Technology, observed for the first time a fundamental process of cellular organization in living plant cells: the birth of microtubules by studying recruitment and activity of individual protein complexes that create the cellular protein network known as the microtubule cytoskeletonthe scaffolding that provides structure and ultimately form and shape to the cell. These fundamental results could be important to agricultural research and are published in the October 10, 2010, early on-line edition of Nature Cell Biology.

All plant and animal cells rely on an elaborate array of molecular rods built from the protein tubulin. These rods, called microtubules, organize the cell and generate forces needed to support cell shape, cell movement, and importantly, cell division. To perform these tasks, microtubules need to be organized into specific configurations. Animal cells separate their chromosomes during cell division by organizing the microtubules network from centrioles. A big mystery is how plants, which do not have centrioles organize their microtubule network. Understanding these mechanisms of molecular organization is a primary goal of cell biology.

As co-author David Ehrhardt from Carnegie's Department of Plant Biology explained: "In many cells, microtubule arrays are created with aid of a centralized body called a centrosome. Centrosomal arrays have been a focus of research for decades and much is now understood about how these arrays are created and organized by the centrosome. However, many differentiated animal cells, and flowering plant cells have arrays that are created independently of a centrosome. In fact, flowering plants lack centrosomes all together. Although these centrosome arrays are common in nature, they have received less study and their organization mechanisms remain largely mysterious."

Th
'/>"/>

Contact: David Ehrhardt
ehrhardt@stanford.edu
650-325-1521
Carnegie Institution
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/23/2015)... -- Research and Markets( http://www.researchandmarkets.com/research/vq2k2f/bodyworn ... "Body-Worn Temperature Sensors Market - Global Industry Analysis, ... 2020" report to their offering. ... body-worn temperature sensors market. The global body-worn temperature ... of types, care setting, patient demographic, applications and ...
(Date:6/23/2015)... GARDENS, Fla. , June 23, 2015 ... identity management and authentication solutions, today announced enhanced ... strong, multi-factor authentication solution.  The enhancements build ... use of the DigitalPersona Altus platform and ... reader compatibility. In today,s environment ...
(Date:6/18/2015)... 18, 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... the growing mobile commerce market announces that its Wocket® smart ... "Money on the Mark", scheduled to air on WABC Radio ... 20 th . The broadcast air- time ... to 8:00pm EST. NXT-ID, Inc.,s CEO Gino Pereira ...
Breaking Biology News(10 mins):Body-Worn Temperature Sensors Market - Global Industry Analysis 2Crossmatch Releases Enhanced DigitalPersona Altus Advanced Authentication Functionality 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 3
... Scientists affiliated with the Natural Capital Project at Stanford University ... measure where and when people are using natural areas for ... and value that these areas provide to society. Tourism ... world economy, and it,s expected to grow to $10 billion ...
... many plants with wide ranges can vary geographically, depending on ... can also affect the genetic composition of natural plant populations, ... and Stockholm University are presenting the new study this week ... Sciences , PNAS . It is known that ...
... has evolved to produce individuals with two distinct appearancesan ... a form with a white stripe running down its ... its broader ecological community when the appearance of the ... The new findings, based on research carried out ...
Cached Biology News:Stanford scientists use Flickr photos to assess value of natural tourist attractions 2Grazers and pollinators shape plant evolution 2Poorly camouflaged insects can kick off a cascade of ecological impacts, new CU-Boulder study finds 2Poorly camouflaged insects can kick off a cascade of ecological impacts, new CU-Boulder study finds 3
(Date:7/1/2015)... 1, 2015   Neuraltus Pharmaceuticals, Inc. , a ... groundbreaking drugs to treat neurodegenerative diseases such as ... Robert G. Miller , M.D., Director of the Forbes ... Pacific Medical Center in San Francisco, has been awarded ... million to help fund a Phase 2 clinical ...
(Date:7/1/2015)... Ariz. , July 1, 2015 Isagenix ... it has earned three Gold, three Silver, and three ... Awards gala held in Chicago ... as the premier business awards program in the U.S. ... recognizes our company,s strength in developing leaders, cultivating talent, ...
(Date:7/1/2015)... 2015 InferMed , ... will augment ... clinical s olutions suite   Elsevier ... products and services, announced today the acquisition of  InferMed , ... technology company. InferMed,s Arezzo technology supports clinicians in ...
(Date:7/1/2015)... ... 01, 2015 , ... NEMA 4 (IP66) Medical Joysticks can ... Joysticks have an impermeable molecular barrier protection against bio-hazardous agents. Original Equipment ... increase healthcare worker safety and reduce financial costs. , CTI Electronics announces a ...
Breaking Biology Technology:Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 2Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 3Investigator to Receive $1.5 Million Grant from the ALS Association to Help Fund Confirmatory Phase 2 Study of Neuraltus Pharmaceuticals' NP001 4Isagenix Earns Nine American Business Awards 2Isagenix Earns Nine American Business Awards 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 2Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 4Sanitized Medical Joysticks for a Safer and Healthier Work Environment 2
... - Hutchinson Technology Inc. , a designer and ... goods, is nearing completion of a 70,000 square foot ... drives. , ,Following its completion next month, Hutchinson ... company engineers, and will tentatively have the first production ...
... of start-ups came through my office showing business plans that ... income and achieve some splendid valuation. We all know how ... a very few others - that presented a strong value ... on other companies for their businesses, more or less, did ...
... - One state initiative aimed at galvanizing ... having the desired effect. , ,Several emerging technology ... the attention of investors, after submitting winning business ... of ideas. , ,The Governor's Business Plan Contest, ...
Cached Biology Technology:Hutchinson plant expansion nears completion 2Searching for revenue streams 2Searching for revenue streams 3Winners of past business plan contests secure funding, credibility 2Winners of past business plan contests secure funding, credibility 3Winners of past business plan contests secure funding, credibility 4