Navigation Links
Plants have a double line of defence

Max Planck researchers in Cologne, Germany demonstrate that a multi-step defence system underlies the durable resistance of plants to fungal parasitesPlants are exposed to many different pathogens in the environment. Only a few of these pathogens, however, are able to attack a species of plant and "make it sick". If a particular pathogen is unable to attack a plant, that means that the plant is resistant to it ?in other words, it cannot host the pathogen.

This durable type of immunity of a plant to parasites is called nonhost resistance. Although, in nature, nonhost resistance stops almost all parasite attacks, it has been the subject of little research. Scientists from the Max Planck Institute for Plant Breeding Research in Cologne, working with Volker Lipka, Jan Dittgen, and Paul Schulze-Lefert, and in co-operation with colleagues from the Carnegie Institution in the US, have uncovered the molecular components of nonhost resistance and described this system of defence in the current edition of the journal Science (November 18, 2005). In their findings, they draw parallels between the immune systems of plants and animals. This research could be central to the development of new "green" fungicides.

The Max Planck researchers were able to identify the gene known as PEN (penetration) as an important component of nonhost resistance. They isolated arabidopsis mutations, which are partially susceptible to powdery mildews. If these genes are defective, or if the protein they code is missing in the plant cells, the fungus can invade the leaf epidermis cells more frequently. For that reason the scientists looked particularly at the question of exactly which function the PEN2 protein has in the defence against pathogens.

PEN2 is an enzyme located in the membrane of what are called peroxisomes. These are spatially separated cell compartments, in which metabolic reactions often take place that would be dangerous for the organism at any place other than
'"/>

Source:Max-Planck-Gesellschaft


Page: 1 2 3

Related biology news :

1. Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants
2. Plants, animals share molecular growth mechanisms
3. Plants respond similarly to signals from friends, enemies
4. Plants defy Mendels inheritance laws, may prompt textbook changes
5. Study: Plants use dual defense system to fight pathogens
6. Plants discriminate between self and non self
7. Prozac for future Plants on Mars
8. Plants reveal a secret and bring researchers nearer a cleaner future
9. Plants, too, have ways to manage freeloaders
10. Plants give pests sock in the gut
11. Plants used to detect gas leaks, from outer space!
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Plants have double line defence

(Date:5/22/2013)... feared Legionella pneumophila bacteria is responsible for ... In order to infect us, this pathogen has developed ... go unnoticed in our cells, thus avoiding these acting ... Basque biosciences research centre, CIC bioGUNE, in which teams ... USA and the National Supercomputation Centre in Barcelona (BSC) ...
(Date:5/22/2013)... Early screening for prostate cancer could become as ... women, thanks to UC Irvine research published today in ... , After more than a decade of work, UC ... clinically usable markers for prostate cancer in urine, meaning ... greater accuracy and at dramatically lower cost. The same ...
(Date:5/22/2013)... May 22, 2013. Plastic additives known as phthalates ... everywhere: They turn up in flooring, plastic cups, ... the Centers for Disease Control and Preventionthe bodies ... have come under increasing scrutiny. A growing collection ... can leech from packaging and mix with food) ...
Breaking Biology News(10 mins):Mechanism discovered which aids Legionella to camouflage itself in the organism 2UCI chemists devise inexpensive, accurate way to detect prostate cancer 2UCI chemists devise inexpensive, accurate way to detect prostate cancer 3Study links chemicals widely found in plastics and processed food to elevated blood pressure in children and teens 2
... Four new studies addressing basic questions about how ... by the National Science Foundation,s (NSF) Division of ... just over $1.3 million, NSF,s awards for these ... and about fundamental biological responses to environmental changes, ...
... States and United Kingdom are signing a memorandum ... atmospheric science and technology. The agreement will enable ... developing joint educational and training programs. The ... the U.S. National Center for Atmospheric Research (NCAR) ...
... devote more resources to research into the effects ... to a paper published today in the journal ... Research Flagship. ,"Marine ecosystems are undoubtedly under-resourced, overlooked ... impacts on marine life is a mere drop ...
Cached Biology News:National Science Foundation funds research addressing enduring questions of life 2National Science Foundation funds research addressing enduring questions of life 3National Science Foundation funds research addressing enduring questions of life 4US and UK research centers launch major collaboration on atmospheric research, technology 2Ocean life under threat from climate change 2
(Date:5/23/2013)... The New Jersey chapter of the ... Processing Associates (BDPA), is hosting its 10th annual Families ... all-day event will encourage students and their parents to ... outs from many of the industries’ finest teachers. Held ... Jersey Institute of Technology, the event will include workshops, ...
(Date:5/23/2013)... 2013  Verenium Corporation (Nasdaq: VRNM ), ... and commercialization of high-performance enzymes, today announced that ... present at two upcoming conferences. (Logo: ... the Second Annual Marcum LLP Microcap Conference on Thursday, ... New York City.  The presentation is scheduled to begin ...
(Date:5/23/2013)... South Korea , May 23, 2013 /PRNewswire/ ... with SillaJen, Inc., a private biotherapeutics and contract ... targeted biological products for cancer, announced today a ... in patients treated with the oncolytic and immunotherapeutic ... This research was published in the May ...
(Date:5/23/2013)... 23, 2013 African Ancestry ... for people of African descent, today announced new ... For people of all races, myDNAmix determines various ... distinct populations: Indigenous Americas (Native American), East Asia, ... , Originally launched in late 2011, ...
Breaking Biology Technology:Black Data Processing Associates (BDPA) New Jersey Hosts 10th Annual Families in Technology Day June 8, 2013 2Verenium To Present At Two Upcoming Conferences 2Verenium To Present At Two Upcoming Conferences 3Pusan National University Announces Science Translational Medicine Publication Highlighting Landmark Demonstration of Functional Anti-Cancer Antibody Induction in Patients Following JX-594 Treatment 2Pusan National University Announces Science Translational Medicine Publication Highlighting Landmark Demonstration of Functional Anti-Cancer Antibody Induction in Patients Following JX-594 Treatment 3AfricanAncestry.com Rolls Out Improved MyDNAMix Admixture Test for People of all Races; Enhancements Increase Accuracy in Estimation of Ancestral Makeup 2AfricanAncestry.com Rolls Out Improved MyDNAMix Admixture Test for People of all Races; Enhancements Increase Accuracy in Estimation of Ancestral Makeup 3
... Inc. announced today Winchester Hospital ... of APIs suite of labor resource management solutions ... include Payrollmation time and attendance, ActiveStaffer staff scheduling, ... , ,The hospital is adopting the applications in ...
... MILWAUKEE - Merge eFilm , a global ... the release of eFilm Workstation 1.9 and ... PACS for 10 imaging centers. , ,eFilm Workstation ... the ability to view and manipulate digital diagnostic ...
... long-standing riddle of whether the Earth's ice ages occurred simultaneously ... the glacial deposits found in the high desert east of ... effects of cosmic rays on minerals found in boulders carried ... of scientists from the University of Wisconsin-Madison has demonstrated that ...
Cached Biology Technology:Glacial records depict ice age climate in synch worldwide 2Glacial records depict ice age climate in synch worldwide 3
Mouse Anti-Amyloid beta [1-16], clone 6E10, Monoclonal Antibody...
... This DuoSet ELISA Development kit contains the ... sandwich ELISAs to measure natural and recombinant ... supernates and serum. Each kit contains sufficient ... 96-well plates, provided that the following conditions ...
HES-1 [Hairy 1], Available Summer 2003...
E1A (adenovirus early region 1)...
Biology Products: