Nuclear-localized cyclic nucleotide-gated channels mediate symbiotic calcium oscillations.
Science
; 352(6289): 1102-5, 2016 May 27.
Article
em En
| MEDLINE
| ID: mdl-27230377
ABSTRACT
Nuclear-associated Ca(2+) oscillations mediate plant responses to beneficial microbial partners--namely, nitrogen-fixing rhizobial bacteria that colonize roots of legumes and arbuscular mycorrhizal fungi that colonize roots of the majority of plant species. A potassium-permeable channel is known to be required for symbiotic Ca(2+) oscillations, but the calcium channels themselves have been unknown until now. We show that three cyclic nucleotide-gated channels in Medicago truncatula are required for nuclear Ca(2+) oscillations and subsequent symbiotic responses. These cyclic nucleotide-gated channels are located at the nuclear envelope and are permeable to Ca(2+) We demonstrate that the cyclic nucleotide-gated channels form a complex with the postassium-permeable channel, which modulates nuclear Ca(2+) release. These channels, like their counterparts in animal cells, might regulate multiple nuclear Ca(2+) responses to developmental and environmental conditions.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Canais de Cálcio
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Sinalização do Cálcio
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Medicago truncatula
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Canais de Cátion Regulados por Nucleotídeos Cíclicos
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Membrana Nuclear
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Nucleotídeos Cíclicos
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article