Change search
ReferencesLink to record
Permanent link

Direct link
Reactive oxygen species in legume and actinorhizal nitrogen-fixing symbioses: the microsymbiont’s responses to an unfriendly reception
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0002-0536-903X
2007 (English)In: Physiologia Plantarum, Vol. 130, 344-356 p.Article in journal (Refereed) Published
Abstract [en]

The plant responses to infection by pathogenic bacteria have been extensively reviewed in recent years, including the spatial and temporal production of reactive oxygen species (ROS). The immediate and localized release of ROS upon infection, known as the oxidative burst, was shown not only to be part of the hypersensitive response but also likely responsible for mediating, directly or via signal transduction pathways, other plant defence strategies. This paradigm inspired studies in nitrogen-fixing root nodule symbioses, and a parallelism is unavoidable. In rhizobia–legume symbioses, histochemical data revealed the presence of ROS in the host infection threads and in the root nodules primordia. On the other hand, in actinorhizal infections, it has been shown that Alnus glutinosa root exudates induce several oxidative stress response-related proteins in compatible Frankia. These data suggest that the nitrogen-fixing microsymbionts must have had to evolve adaptations to overcome and possibly regulate an unfriendly environment. In this review, particular emphasis will be given to the bacteria antioxidant mechanisms at different developmental stages of the nitrogen-fixing root nodule symbioses.

Place, publisher, year, edition, pages
2007. Vol. 130, 344-356 p.
URN: urn:nbn:se:umu:diva-15950DOI: doi:10.1111/j.1399-3054.2007.00933.xOAI: diva2:155622
Available from: 2007-08-06 Created: 2007-08-06 Last updated: 2015-04-29Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Sellstedt, Anita
By organisation
Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 43 hits
ReferencesLink to record
Permanent link

Direct link