Nuclear-localized cyclic nucleotide–gated channels mediate symbiotic calcium oscillations

• DOI: 10.1126/science.aae0109
• Publication Date: 2016-05-26T18:17:52Z
• Authors: Myriam Charpentier; Jongho Sun; Teresa Vaz Martins; Guru V. Radhakris...; Kim Findlay; Eleni Soumpourou; Julien Thouin; Anne-Aliénor Véry; Dale Sanders; Richard J. Morris; Giles E. D. Oldroyd
• Keywords: 0301 basic medicine; 570; Potassium Channels; Nuclear Envelope; 500; Cyclic Nucleotide-Gated Cation Channels; medicago truncatula; nuclear Ca2+; root; Plant Roots; ion transport; 03 medical and health sciences; calcium channels; Medicago truncatula; [SDV.BV]Life Sciences [q-bio]/Vegetal Biology; Calcium Channels; Calcium Signaling; Rhizophagus irregularis; Nucleotides, Cyclic; Symbiosis; Sinorhizobium meliloti

Calcium signals the making of symbiosis

Plant cell nuclei respond to signals from symbiotic nitrogenfixing rhizobial bacteria or arbuscular mycorrhizal fungi with oscillating Ca 2+ release. Charpentier et al. identified a trio of responsible Ca 2+ channels in a legume. These channels contain nuclear localization signals and are expressed in root cell nuclear envelopes. The channels function early in the establishment of symbiosis to produce oscillations in Ca 2+ release from nuclear stores.

Science , this issue p. 1102