Navigation Links
Plant protein 'doorkeepers' block invading microbes, study finds
Date:7/7/2009

immune systems. Rather than developing immunity as they are exposed to various microbes, plants make use of certain built-in cells and genetically programmed systems to protect themselves against microbial invasion and related diseases.

This type of innate immune system has two branches: one makes use of receptor proteins outside the cell to recognize specific molecular features of an invading microbe, while the other branch uses similar proteins within the cell to recognize an invading microbe during the infection process.

Up until now, scientists had identified only one protein, known as RIN4, which is able to regulate these two branches of the plant immune system in Arabidopsis. The protein is found in the permeable plasma membrane that encases the cell on the inside of the cell wall. It has been unclear exactly how the protein and the two branches of the immune system interact to trigger an immune response in the plant.

THE NEW FINDINGS

In studying the RIN4 protein, Coaker and her colleagues identified six previously uncharacterized proteins that can associate with RIN4 inside plant cells. One protein, called AHA1, was characterized in-depth and found to be key to the immune response in Arabidopsis plants.

AHA1 can act to regulate the opening and closing of tiny holes called stomata, found on the underside of the leaf. The stomata allow gases and water to pass in and out of the leaf. This is the same opening that allows bacteria and other invading microbes to gain entrance to the plant.

The stomata are each flanked by two guard cells, which control these vitally important portals to the leaf. When the guard cells swell, the stomata close. Conversely, when the water content of the guard cells decreases, the stomata open.

The six proteins identified in this study were found to be intricately involved with the biochemical processes that enable the plant to recognize and block out invading
'/>"/>

Contact: Patricia Bailey
pjbailey@ucdavis.edu
530-752-9843
University of California - Davis
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Nitrogen research shows how some plants invade, take over others
2. Desert rhubarb -- a self-irrigating plant
3. Can a new implant coating technique create a new six million dollar man?
4. Ovarian transplantation: First baby is born after a new technique
5. Ovarian transplantation: New technique gives greatly improved results in this delicate operation
6. Female human embryos adjust the balance of X chromosomes before implantation
7. Plant protein doorkeepers block invading microbes, study finds
8. Computers aid in cracking deception in plants
9. Waste water treatment plant mud used as green fuel
10. Midget plant gets makeover
11. Plant microbe shares features with drug-resistant pathogen
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/2/2015)... In the current eight ... the strongest competitors, showing outstanding performance in recognition ... is capable of a throughput of 5.000.000 fingerprints ... be ten times faster than most competitors and ...      (Photo: http://photos.prnewswire.com/prnh/20150402/738673-a ) , ...
(Date:4/1/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the ... mobile commerce market, announces the second shipment of a ... early access pre-order customers. Feedback from ... including Walmart, Target, AT&T, Dunkin, Donuts, Stop & Shop ... all outlets and very easy to use. Several users ...
(Date:3/30/2015)... 26, 2015 Research and Markets ( ... "Global Gesture Recognition Market in Automotive Sector 2014-2018" ... the Global Gesture Recognition market in Automotive Sector to ... 2013-2018. Gesture recognition is the ability of ... of an individual. Gesture recognition technology can be 2D-based ...
Breaking Biology News(10 mins):DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4Global Gesture Recognition Market in Automotive Sector Report 2015 - Growing Number of Partnerships 2
... with the current poaching rates. The loss of this megaherbivore is ... on the ecosystems they now live in. The white ... of ecosystem functioning because theyre not controlled by predation. A ... Journal of Ecology , highlights the role of the white ...
... better be sure that there are no great tits around to ... So says Anders Brodin and Utku Urhan of the University of ... position of such hideaways up to 24 hours after seeing it ... well-known hoarders such as crows and jays, they do not store ...
... genetic traits in cattle that might allow farmers to ... The study, which compared the genetic code of ... to impact on a disease that leads to major ... University of Edinburgh,s Roslin Institute, has identified a number ...
Cached Biology News:Poaching threatens savannah ecosystems 2"You hide it -- I'll find it!" -- Great tit has a bird's eye view when looking for dinner 2Genetic find might lead to cattle that are more resistant to TB 2
(Date:5/1/2015)... /CNW/ - Softchoice, a leading North American IT solutions and managed ... of two Cisco® Partner Summit Country awards. ... Security Partner of the Year for Canada ... in Montreal . "We ... awards at this year,s conference," said David MacDonald , ...
(Date:5/1/2015)... , May 1, 2015 Albany Molecular ... William S. Marth , AMRI,s President and Chief ... Merrill Lynch 2015 Health Care Conference on Wednesday, May ... live audio webcast of the presentation can be accessed ... The webcast will be archived for ...
(Date:4/30/2015)... South Carolina (PRWEB) May 01, 2015 ... system services, is extremely proud to announce that for ... been named as a winner of a Queen’s Award ... success for the design and manufacture of a unique ... is the revolutionary alternative to traditional steam flow measurement. ...
(Date:4/30/2015)... San Francisco, CA (PRWEB) April 30, 2015 ... for the first quarter of 2015 were $4.4 million, compared ... The net loss for the first quarter was $8.9 million, ... to a net loss for the same period in 2014, ... share. As of March 31, 2015, cash, cash equivalents and ...
Breaking Biology Technology:Softchoice recognized with two Country Awards at Cisco Partner Summit 2015 2AMRI to Present at the Bank of America Merrill Lynch 2015 Health Care Conference 2Spirax Sarco Receives a Queen’s Award for Innovation 2Spirax Sarco Receives a Queen’s Award for Innovation 3Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 2Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 3Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 4Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 5Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 6Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 7Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 8
... PAREXEL International,Corporation (Nasdaq: PRXL ), ... Imogene Grimes, Ph.D., to Vice President of,Data ... biostatistician,with more than 25 years of experience, ... data science services, including data management,biostatistics, and ...
... LLC announced today,that it is teaming up with ... diabetes screenings to school age children in the ... pre-diabetic children and,adolescents. Beginning May 1, 2008 and ... be available free of charge at any of ...
... FRANCISCO, Calif., April 29 ,Anesiva, Inc. (Nasdaq: ... and distribution agreement, with Green Vision Company, for,several ... injection system is approved in the U.S. to,provide ... or blood,draws in children three to 18 years ...
Cached Biology Technology:PAREXEL Appoints Leading Biostatistician Dr. Imogene Grimes to Vice President of Data Sciences Strategic Services 2PAREXEL Appoints Leading Biostatistician Dr. Imogene Grimes to Vice President of Data Sciences Strategic Services 3PAREXEL Appoints Leading Biostatistician Dr. Imogene Grimes to Vice President of Data Sciences Strategic Services 4RediClinic, BIOSAFE Labs and Glycemion to Provide Free Diabetes Risk Assessments to Richmond, Va. School Children 2RediClinic, BIOSAFE Labs and Glycemion to Provide Free Diabetes Risk Assessments to Richmond, Va. School Children 3RediClinic, BIOSAFE Labs and Glycemion to Provide Free Diabetes Risk Assessments to Richmond, Va. School Children 4RediClinic, BIOSAFE Labs and Glycemion to Provide Free Diabetes Risk Assessments to Richmond, Va. School Children 5Anesiva Announces New Zingo Marketing and Distribution Agreement 2Anesiva Announces New Zingo Marketing and Distribution Agreement 3
... defined by their capacity to self renew ... specialized progenitor cells, which can commit to ... cells (NSCs) are capable of differentiating into ... oligodendrocytes. During the isolation and expansion of ...
BAI-1 (T-20)...
Immunogen: Tissue / cell preparation. (Murine EHS laminin preparation) Storage: -20 C, Avoid Freeze/Thaw Cycles...
Human/Mouse APLP-1 MAb (Clone 354020) ENTREZ GeneID: 333...
Biology Products: