NDLI: Arabidopsis root growth dependence on glutathione is linked to auxin transport

Content Provider	Springer Nature Link
Author	Koprivova, Anna Mugford, Sam T. Kopriva, Stanislav
Copyright Year	2010
Abstract	Glutathione depletion, e.g. by the inhibitor of its synthesis, buthionine sulphoximine (BSO), is well known to specifically reduce primary root growth. To obtain an insight into the mechanism of this inhibition, we explored the effects of BSO on Arabidopsis root growth in more detail. BSO inhibits root growth and reduces glutathione (GSH) concentration in a concentration-dependent manner leading to a linear correlation of root growth and GSH content. Microarray analysis revealed that the effect of BSO on gene expression is similar to the effects of misregulation of auxin homeostasis. In addition, auxin-resistant mutants axr1 and axr3 are less sensitive to BSO than the wild-type plants. Indeed, exposure of Arabidopsis to BSO leads to disappearance of the auxin maximum in root tips and the expression of QC cell marker. BSO treatment results in loss of the auxin carriers, PIN1, PIN2 and PIN7, from the root tips of primary roots, but not adventitious roots. Since BSO did not abolish transcription of PIN1, and since the effect of BSO was complemented by dithiothreitol, we conclude that as yet an uncharacterised post-transcriptional redox mechanism regulates the expression of PIN proteins, and thus auxin transport, in the root tips.
Starting Page	1157
Ending Page	1167
Page Count	11
File Format	PDF
ISSN	07217714
Journal	Plant Cell Reports
Volume Number	29
Issue Number	10
e-ISSN	1432203X
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-07-29
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Glutathione Roots Auxin Arabidopsis Plant Biochemistry Biotechnology Plant Sciences Cell Biology
Content Type	Text
Resource Type	Article
Subject	Plant Science Medicine Agronomy and Crop 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

GA3 enhances root responsiveness to exogenous IAA by modulating auxin transport and signalling in Arabidopsis

Endophytic microbes Bacillus sp. LZR216-regulated root development is dependent on polar auxin transport in Arabidopsis seedlings

Arabidopsis root growth dependence on glutathione is linked to auxin transport.

Differential regulation of B2-type CDK accumulation in Arabidopsis roots

Auxin and root initiation in somatic embryos of Arabidopsis

Auxin: a master regulator in plant root development

Inhibition of histone deacetylation alters Arabidopsis root growth in response to auxin via PIN1 degradation

The key players of the primary root growth and development also function in lateral roots in Arabidopsis

Superoxide production induced by short-term exposure of barley roots to cadmium, auxin, alloxan and sodium dodecyl sulfate

Arabidopsis root growth dependence on glutathione is linked to auxin transport

Similar Documents

GA3 enhances root responsiveness to exogenous IAA by modulating auxin transport and signalling in Arabidopsis

Endophytic microbes Bacillus sp. LZR216-regulated root development is dependent on polar auxin transport in Arabidopsis seedlings

Arabidopsis root growth dependence on glutathione is linked to auxin transport.

Differential regulation of B2-type CDK accumulation in Arabidopsis roots

Auxin and root initiation in somatic embryos of Arabidopsis

Auxin: a master regulator in plant root development

Inhibition of histone deacetylation alters Arabidopsis root growth in response to auxin via PIN1 degradation

The key players of the primary root growth and development also function in lateral roots in Arabidopsis

Superoxide production induced by short-term exposure of barley roots to cadmium, auxin, alloxan and sodium dodecyl sulfate

Arabidopsis root growth dependence on glutathione is linked to auxin transport