Navigation Links
CSHL researchers identify gene that helps plant cells keep communication channels open
Date:2/17/2009

Plant cells communicate via microscopic channels called plasmodesmata that are embedded in their cell walls. For the stem cells in the plants' growing tips, called "meristems," the plasmodesmata are lifelines, allowing nutrients and genetic instructions for growth to flow in.

Developmental and environmental cues trigger changes in the structure of the tiny channels, thereby altering the flow of traffic through them. The genes and molecular pathways of the plant cell that respond to these cues, and the mechanisms that control channel structure and cell-to-cell traffic are, however, mostly unknown.

To identify these genes, a team of researchers led by Professor David Jackson, Ph.D., at Cold Spring Harbor Laboratory (CSHL), devised a method to find mutant cells whose channels were blocked to traffic. The experiments have revealed a gene called GAT1 (pronounced gate-one), which instructs cells to produce an enzyme found only in meristems, the stem-cell rich tip of the plant where new growth takes place. The enzyme improves the flow of traffic through plasmodesmata by acting as an antioxidant, a type of molecule that relieves cellular stress.

"This discovery is one of the first examples of using genetics to understand how plant cells communicate through plasmodesmata," says Jackson, whose lab at CSHL is devoted to the study of plant genetics. "Our study suggests a mechanism through which plant cells can adjust trafficking in these channels through the various stages of development." The team's findings will be published in the Feb 17th issue of Proceedings of the National Academy of Sciences.

GAT1 keeps callose at bay

As plants develop, growth signals and environmental cues such as damage or stress trigger overproduction of a substance called callose. Although callose is a normal structural component of cell walls in plants, excess callose accumulates and forms obstructive clumps that plug the plasmodesmata
'/>"/>

Contact: Hema Bashyam
bashyam@cshl.edu
516-367-6822
Cold Spring Harbor Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/11/2014)... , Dec. 10, 2014  That blood pressure plays a ... while. Hypertension – the medical term for high blood pressure ... 1800s, and the inflatable cuff that,s used in measuring blood ... mean there,s nothing new about hypertension, its triggers and its ... about the condition and the best ways to treat it. ...
(Date:12/10/2014)... NEW YORK , Dec. 8, 2014 You,ve ... online banking account but can,t remember your password, site key ... birthday? Who was your first grade teacher? ... launches the app that will finally put an ... PINs – 1U TM . 1U leverages a ...
(Date:12/10/2014)... Forest Baptist Medical Center today announced plans for a ... Funding for this $50 million capital project is part ... launched next summer. The medical education ... R.J. Reynolds Tobacco Company complex, adjacent to 525@vine in ... plans to be ready to welcome medical students in ...
Breaking Biology News(10 mins):Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4The 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 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... 19th conference of the International Society for Sexually Transmitted ... in Quebec City, Canada. The world,s foremost conference ... 1,200 scientists from every continent to discuss the most ... and treatment; emerging threats in bacterial STDs; major intervention ...
... invented a new technology that can inexpensively render ... yes, even diapers, intimate apparel and athletic wear, ... inexpensive anti-microbial technology works on natural and synthetic ... manufacturing process or at home, and it doesn,t ...
... - Researchers are developing new technologies that combine ... and tiny particles such as bacteria, viruses and ... drug manufacturing to food safety. The technologies ... "lab-on-a-chip" applications, or miniature instruments that perform measurements ...
Cached Biology News:New UGA technology makes textiles permanently germ-free; targets health care-associated infections 2New UGA technology makes textiles permanently germ-free; targets health care-associated infections 3Laser, electric fields combined for new 'lab-on-chip' technologies 2Laser, electric fields combined for new 'lab-on-chip' technologies 3
(Date:12/13/2014)... CHARLOTTE, N.C. (PRWEB) December 13, 2014 ... (UNC Charlotte) spin-out company has changed its name to ... more accurate representation of where we are today,” said ... “We’ve extended our platform’s applications beyond breast cancer diagnostics ... is a reflection of that evolution.” , Founded in ...
(Date:12/13/2014)... 2014 The DNA Microarray market ... and is expected to grow at a CAGR ... through the TOC of the DNA Microarray for ... segments, with help of various tables and figures. ... Microarray market consists of instrument, consumables, and services, ...
(Date:12/13/2014)... December 13, 2014 According to population ... people between now and 2030." If a population explosion ... seventh most populous state in the country. , To ... at the Future of North Carolina Forum on December ... we have the necessary infrastructure in place? Enough clean ...
(Date:12/13/2014)... , Dec. 11, 2014 Research and Markets ... addition of the "Glucose Sensors: the Next ... http://photos.prnewswire.com/prnh/20130307/600769 The ... designs is giving hope for a better future ... monitors that can measure glucose levels accurately and ...
Breaking Biology Technology:CanDiag Inc. Expands Product Scope Under a New Name: OncoTab, Inc. 2DNA Microarray Market Is Expected to Grow at a CAGR of 15.2% from 2014 to 2019 - A Report by MicroMarket Monitor 2DNA Microarray Market Is Expected to Grow at a CAGR of 15.2% from 2014 to 2019 - A Report by MicroMarket Monitor 3DNA Microarray Market Is Expected to Grow at a CAGR of 15.2% from 2014 to 2019 - A Report by MicroMarket Monitor 4North Carolina Chamber of Commerce: Asking Questions & Gathering Answers with a Futurist 2Glucose Sensors: the Next Generation 2Glucose Sensors: the Next Generation 3
... - Based on initial response, it looks as if ... misnomer for the latest group of former Cray and SGI ... company. , ,The Inver Grove Heights, Minn.-based business, with ties ... aggregation mechanism as a breakthrough product for Apple Computers enterprise ...
... , a maker of molecular diagnostic products, recently announced ... provides clinical trial laboratories with access to a broad ... gene. , ,The panel is a pharmacogenetic testing solution ... custom assay panels. The panel is being used to ...
... , a Madison-based provider of Internet and desktop tools for ... and implement a ground-breaking online voting mechanism for the ... from an industry often considered conservative, ACM announced it will ... its annual awards show in May. , ,Using Broadjams technology, ...
Cached Biology Technology:Former SGI/Cray Team Develops Products for G5 Platform 2Former SGI/Cray Team Develops Products for G5 Platform 3Third Wave Releases Gene Test 2
Edited by P.J. Delves (1997) An up-to-date review of antibody-raising technologies, this volume provides researchers with immediate access to the protocols they require every day....
... The product contains 5 ... coated with the monoclonal BerEP4 ... EpCAM (epithelial cell adhesion molecule). ... samples of 2 x 10e7 ...
Superior homology search software - in all the flavours of blast, with increased sensitivity and speed. Free windows version for academic use....
Full service including gene cloning, protien expression and purification of 1 liter culture....
Biology Products: