Document Detail


Reactive oxygen species (ROS) as early signals in root hair cells responding to rhizobial nodulation factors.
MedLine Citation:
PMID:  19704506     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Reactive oxygen species (ROS) are involved in supporting polar growth in pollen tubes, fucoid cells and root hair cells. However, there is limited evidence showing ROS changes during the earliest stages of the interaction between legume roots and rhizobia. We recently reported using Phaseolus vulgaris as a model system, the occurrence of a transient increase of ROS, within seconds, at the tip of actively growing root hair cells after treatment with Nod factors (NFs).1 This transient response is NFs-specific, and clearly distinct from the ROS changes induced by a fungal elicitor, with which sustained increases in ROS signal, is observed. Since ROS levels are transiently elevated after NFs perception, we propose that this ROS response is specific of the symbiotic interaction. Furthermore, the observed ROS changes correlate spatially and temporarily with the reported transient increases in calcium levels suggesting key roles for calcium and ROS during the early NF perception.
Authors:
Luis Cárdenas; Carmen Quinto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant signaling & behavior     Volume:  3     ISSN:  1559-2324     ISO Abbreviation:  Plant Signal Behav     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2009-08-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101291431     Medline TA:  Plant Signal Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1101-2     Citation Subset:  -    
Affiliation:
Departamento de Biología Molecular de Plantas; Instituto de Biotecnología; Universidad Nacional Autónoma de México (UNAM); Cuernavaca, Morelos México.
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