NDLI: Suppression and Restoration of Lesion Formation in Arabidopsis lsd Mutants.

Content Provider	PubMed Central
Author	Weymann, K. Hunt, M. Uknes, S. Neuenschwander, U. Lawton, K. Steiner, H. Y. Ryals, J.
Abstract	Systemic acquired resistance (SAR) is a broad-spectrum, systemic defense response that is activated in many plant species after pathogen infection. We have previously described Arabidopsis mutants that constitutively express SAR and concomitantly develop lesions simulating disease (lsd). Here, we describe two new mutants, lsd6 and lsd7, that develop spontaneous necrotic lesions and possess elevated levels of salicylic acid (SA) as well as heightened disease resistance, similar to the previously characterized lsd and accelerated cell death (acd2) mutants. Genetic analysis of lsd6 and lsd7 showed that the mutant phenotypes segregated as simple dominant traits. When crossed with transgenic Arabidopsis plants containing the SA-degrading enzyme salicylate hydroxylase, the F1 progeny showed suppression of both SAR gene expression and resistance. In addition, salicylate hydroxylase suppressed lesion formation in the F1 progeny, suggesting that SA or some SA-dependent process may have a role in pathogen-associated cell death. Surprisingly, lesions were restored in the lsd6 F1 progeny after the application of either 2,6-dichloroisonicotinic acid or SA. Lesions were not restored by treatment with either compound in the lsd7 F1 plants. Our findings demonstrate that steps early in the signal transduction pathway leading to SAR and disease resistance are potentiated by later events, suggesting feedback control of lesion formation.
Related Links	http://dx.doi.org/10.1105/tpc.7.12.2013
Ending Page	2022
Page Count	10
Starting Page	2013
File Format	PDF
ISSN	10404651
e-ISSN	1532298X
Journal	The Plant Cell
Issue Number	12
Volume Number	7
Language	English
Publisher Date	1995-12-01
Access Restriction	Open
Subject Keyword	Plant Science Cell Biology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cell Biology 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

Lysigenous Aerenchyma Formation in Arabidopsis Is Controlled by LESION SIMULATING DISEASE1 [W] [OA]

Epigenetic Suppression of T-DNA Insertion Mutants in Arabidopsis

The Modified Flavonol Glycosylation Profile in the Arabidopsis rol1 Mutants Results in Alterations in Plant Growth and Cell Shape Formation[W]

Growth and development of the axr1 mutants of Arabidopsis.

Leafy Cotyledon Mutants of Arabidopsis.

Arabidopsis mutants impaired in cosuppression.

Arabidopsis Mutants Reveal Multiple Roles for Sterols in Plant Development

Arabidopsis Mutants Lacking Blue Light-Dependent Inhibition of Hypocotyl Elongation.

Arabidopsis Flavonoid Mutants Are Hypersensitive to UV-B Irradiation.

Suppression and Restoration of Lesion Formation in Arabidopsis lsd Mutants.

Similar Documents

Lysigenous Aerenchyma Formation in Arabidopsis Is Controlled by LESION SIMULATING DISEASE1 [W] [OA]

Epigenetic Suppression of T-DNA Insertion Mutants in Arabidopsis

The Modified Flavonol Glycosylation Profile in the Arabidopsis rol1 Mutants Results in Alterations in Plant Growth and Cell Shape Formation[W]

Growth and development of the axr1 mutants of Arabidopsis.

Leafy Cotyledon Mutants of Arabidopsis.

Arabidopsis mutants impaired in cosuppression.

Arabidopsis Mutants Reveal Multiple Roles for Sterols in Plant Development

Arabidopsis Mutants Lacking Blue Light-Dependent Inhibition of Hypocotyl Elongation.

Arabidopsis Flavonoid Mutants Are Hypersensitive to UV-B Irradiation.

Suppression and Restoration of Lesion Formation in Arabidopsis lsd Mutants.