Actinorhizal plant defence-related genes in response to symbiotic Frankia
Ana Ribeiro A , Inês Graça A , Katharina Pawlowski B and Patrícia Santos A C D
+ Author Affiliations
- Author Affiliations
A ECO-BIO/Tropical Research Institute, Av. da República (EAN), Quinta do Marquês, 2784-505 Oeiras, Portugal.
B Department of Botany, Stockholm University, 10691 Stockholm, Sweden.
C Department of Plant Pathology, Michigan State University, East Lansing, MI 48824, USA.
D Corresponding author. Email: psantos@msu.edu
This paper originates from a presentation at the 16th International Meeting on Frankia and Actinorhizal Plants, Oporto, Portugal, 5–8 September 2010.
Functional Plant Biology 38(9) 639-644 https://doi.org/10.1071/FP11012
Submitted: 14 January 2011 Accepted: 10 May 2011 Published: 16 August 2011
Abstract
Actinorhizal plants have become increasingly important as climate changes threaten to remake the global landscape over the next decades. These plants are able to grow in nutrient-poor and disturbed soils, and are important elements in plant communities worldwide. Besides that, most actinorhizal plants are capable of high rates of nitrogen fixation due to their capacity to establish root nodule symbiosis with N2-fixing Frankia strains. Nodulation is a developmental process that requires a sequence of highly coordinated events. One of these mechanisms is the induction of defence-related events, whose precise role in a symbiotic interaction remains to be elucidated. This review summarises what is known about the induction of actinorhizal defence-related genes in response to symbiotic Frankia and their putative function during symbiosis.
Additional keywords: defence genes, hypersensitive response, oxidative burst, pathogenesis, root nodule symbioses, stress responses.
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