Calcium ion is considered a ubiquitous second messenger in all eukaryotic cells. Analysis of intracellular Ca2+ concentration dynamics has demonstrated its signalling role in plant cells in response to a wide array of environmental cues. The implication of Ca2+ in the early steps of the arbuscular mycorrhizal symbiosis has been frequently claimed, mainly by analogy with what firmly demonstrated in the rhizobium‑legume symbiosis. We recently documented transient Ca2+ changes in plant cells challenged with diffusible molecules released by arbuscular mycorrhizal fungi. Ca2+ measurements by the recombinant aequorin method provided new insights into the molecular communications between plants and these beneficial fungi.
Calcium opens the dialogue between plants and arbuscular mycorrhizal fungi
NAVAZIO, LORELLA;MARIANI, PAOLINA
2008
Abstract
Calcium ion is considered a ubiquitous second messenger in all eukaryotic cells. Analysis of intracellular Ca2+ concentration dynamics has demonstrated its signalling role in plant cells in response to a wide array of environmental cues. The implication of Ca2+ in the early steps of the arbuscular mycorrhizal symbiosis has been frequently claimed, mainly by analogy with what firmly demonstrated in the rhizobium‑legume symbiosis. We recently documented transient Ca2+ changes in plant cells challenged with diffusible molecules released by arbuscular mycorrhizal fungi. Ca2+ measurements by the recombinant aequorin method provided new insights into the molecular communications between plants and these beneficial fungi.
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