Recommend Plant Signaling & Behavior (PS&B) to your librarian for 2008. Download form here.
Sign up for Table of Contents Alerts!
PS&B is the official journal of the Society for Plant Neurobiology. Full membership ($60 annually) and student membership ($30 annually) include online access to the journal. Click here to join.
Email this page
Print this page
Article Addendum
pH signature for the responses of arbuscular mycorrhizal fungi to external stimuli
Alessandro C. Ramos, Arnoldo R. Façanha, Pedro T. Lima and Jose Feijo
volume 3 | issue 10
october 2008Pages: 850 - 852
Subscribe to this journal for $79/year
Environmental and developmental signals can elicit differential activation of membrane proton (H+) fluxes as one of the primary responses of plant and fungal cells. In recent work,1 we could determine that during the presymbiotic growth of arbuscular mycorrhizal (AM) fungi specific domains of H+ flux are activated by clover root factors, namely host root exudates or whole root system. Consequently, activation on hyphal growth and branching were observed and the role of plasma membrane H+-ATPase was investigated. The specific inhibitors differentially abolished most of hyphal H+ effluxes and fungal growth. As this enzyme can act in signal transduction pathways, we believe that spatial and temporal oscillations of the hyphal H+ fluxes could represent a pH signature for both early events of the AM symbiosis and fungal ontogeny.
Addendum to: Ramos AC, Façanha AR, Feijó JA. Proton (H+) flux signature for the presymbiotic development of the arbuscular mycorrhizal fungi. New Phytol 2008; 178:177-88.
Authors
Alessandro C. Ramos
INSTITUTO GULBENKIAN DE CIENCIA
Arnoldo R. Façanha
Universidade Estadual do Norte Fluminense Darcy Ribeiro
Pedro T. Lima
INSTITUTO GULBENKIAN DE CIENCIA
Jose Feijo
univ Lisboa