NDLI: The barley mutant emr1 exhibits restored resistance against Magnaporthe oryzae in the hypersusceptible mlo-genetic background

Please wait, while we are loading the content...

UV effects on photosynthesis and DNA in propagules of three Antarctic seaweeds (Adenocystis utricularis, Monostroma hariotii and Porphyra endiviifolium)

Chemical composition of epicuticular wax crystals on the slippery zone in pitchers of five Nepenthes species and hybrids

Changes in extracellular pH are neither required nor sufficient for activation of mitogen-activated protein kinases (MAPKs) in response to systemin and fusicoccin in tomato

Functional identification of sll1383 from Synechocystis sp PCC 6803 as L-myo-inositol 1-phosphate phosphatase (EC 3.1.3.25): molecular cloning, expression and characterization

Activation of members of a MAPK module in β-glucan elicitor-mediated non-host resistance of soybean

Sucrose and starch catabolism in the anther of Lilium during its development: a comparative study among the anther wall, locular fluid and microspore/pollen fractions

Indolacetic and humic acids induce lateral root development through a concerted plasmalemma and tonoplast H+ pumps activation

Glutathione synthesis is regulated by nitric oxide in Medicago truncatula roots

Two NAC domain transcription factors, SND1 and NST1, function redundantly in regulation of secondary wall synthesis in fibers of Arabidopsis

Planta : Volume 225, Issue 5, April 2007

Planta : Volume 225, Issue 4, March 2007

Planta : Volume 225, Issue 3, February 2007

Planta : Volume 225, Issue 2, January 2007

Planta : Volume 225, Issue 1, December 2006

The barley mutant emr1 exhibits restored resistance against Magnaporthe oryzae in the hypersusceptible mlo-genetic background

Content Provider	Springer Nature Link
Author	Jansen, Marcus Jarosch, Birgit Schaffrath, Ulrich
Copyright Year	2006
Abstract	Barley plants having wild-type or mutant alleles at the MLO locus show opposite responses to infection with different pathogens, i.e. plants homozygous for mutant alleles (mlo) are resistant to powdery mildew but hypersusceptible to the rice blast fungus Magnaporthe oryzae and vice versa for plants with at least one wild-type MLO-allele. A mutational analysis was performed in the mlo-genetic background aimed at identifying of individuals with restored resistance against M. oryzae. Here, we describe the barley enhanced Magnaporthe resistance (emr1) mutant which showed restored resistance against blast in the absence of wild-type MLO. The emr1 mutant could be classified as a loss of function mutant. It could be excluded that resistance of emr1 is a back-mutation at the mlo-locus, because emr1 retained resistance against Bgh. The mutant did not display generally increased resistance as was evidenced by infection with either brown rust or net blotch pathogens. Additionally, resistance in emr1 was not associated with constitutively activated defence as confirmed by monitoring PR-gene transcript accumulation. Microscopic analysis showed that resistance of the emr1 mutant against M. oryzae was correlated with blocked penetration in epidermal cells and a concomitantly reduced progression into the mesophyll. These findings are reminiscent of the defence phenotypes against M. oryzae previously described for wild-type barley MLO genotypes. Therefore, it is tempting to speculate that resistance in the emr1 mutant was regained by the knockdown of putative suppressor element(s) acting in the defence scenario against M. oryzae, which diminish resistance only in mlo but not in MLO genotypes.
Starting Page	1381
Ending Page	1391
Page Count	11
File Format	PDF
ISSN	00320935
Journal	Planta
Volume Number	225
Issue Number	6
e-ISSN	14322048
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-12-02
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hordeum Magnaporthe MLO Mutational analysis Resistance Rice blast Forestry Ecology Agriculture Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The Barley Mutant emr1 was Identified in a Mutational Screen for Resistance Against Magnaporthe oryzae

Global gene expression in rice blast pathogen Magnaporthe oryzae treated with a natural rice soil isolate

Involvement of OsNPR1/NH1 in rice basal resistance to blast fungus Magnaporthe oryzae

A putative leucine-rich repeat receptor kinase, OsBRR1, is involved in rice blast resistance

Genetic analysis of the resistance of barley to cryptic species of Pyricularia

Indole derivatives enhance resistance against the rice blast fungus Magnaporthe oryzae

Rice lesion mimic mutant (LMM) 6321-2 exhibits resistance against rice blast (Magnaporthe oryzae) via increased hypersensitive response

The Barley Mutantemr1was Identified in a Mutational Screen for Resistance AgainstMagnaporthe oryzae

Resistance reaction of gene introgressed lines against rice blast (Pyricularia oryzae) disease

The barley mutant emr1 exhibits restored resistance against Magnaporthe oryzae in the hypersusceptible mlo-genetic background

Similar Documents

The Barley Mutant emr1 was Identified in a Mutational Screen for Resistance Against Magnaporthe oryzae

Global gene expression in rice blast pathogen Magnaporthe oryzae treated with a natural rice soil isolate

Involvement of OsNPR1/NH1 in rice basal resistance to blast fungus Magnaporthe oryzae

A putative leucine-rich repeat receptor kinase, OsBRR1, is involved in rice blast resistance

Genetic analysis of the resistance of barley to cryptic species of Pyricularia

Indole derivatives enhance resistance against the rice blast fungus Magnaporthe oryzae

Rice lesion mimic mutant (LMM) 6321-2 exhibits resistance against rice blast (Magnaporthe oryzae) via increased hypersensitive response

The Barley Mutantemr1was Identified in a Mutational Screen for Resistance AgainstMagnaporthe oryzae

Resistance reaction of gene introgressed lines against rice blast (Pyricularia oryzae) disease

The barley mutant emr1 exhibits restored resistance against Magnaporthe oryzae in the hypersusceptible mlo-genetic background