Publication Date:
2004-02-14
Description:
Legumes can enter into symbiotic relationships with both nitrogen-fixing bacteria (rhizobia) and mycorrhizal fungi. Nodulation by rhizobia results from a signal transduction pathway induced in legume roots by rhizobial Nod factors. DMI3, a Medicago truncatula gene that acts immediately downstream of calcium spiking in this signaling pathway and is required for both nodulation and mycorrhizal infection, has high sequence similarity to genes encoding calcium and calmodulin-dependent protein kinases (CCaMKs). This indicates that calcium spiking is likely an essential component of the signaling cascade leading to nodule development and mycorrhizal infection, and sheds light on the biological role of plant CCaMKs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levy, Julien -- Bres, Cecile -- Geurts, Rene -- Chalhoub, Boulos -- Kulikova, Olga -- Duc, Gerard -- Journet, Etienne-Pascal -- Ane, Jean-Michel -- Lauber, Emmanuelle -- Bisseling, Ton -- Denarie, Jean -- Rosenberg, Charles -- Debelle, Frederic -- New York, N.Y. -- Science. 2004 Feb 27;303(5662):1361-4. Epub 2004 Feb 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire des Interactions Plantes-Microorganismes INRA-CNRS, BP27, 31326 Castanet-Tolosan Cedex, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14963335" target="_blank"〉PubMed〈/a〉
Keywords:
Amino Acid Sequence
;
Calcium/metabolism
;
Calcium Signaling
;
Calcium-Calmodulin-Dependent Protein Kinases/chemistry/genetics/*metabolism
;
Calmodulin/metabolism
;
Chromosomes, Artificial, Bacterial
;
Cloning, Molecular
;
EF Hand Motifs
;
Expressed Sequence Tags
;
Gene Expression Regulation, Plant
;
Genes, Plant
;
Lipopolysaccharides/metabolism
;
Medicago/*enzymology/genetics/microbiology
;
Molecular Sequence Data
;
Mutation
;
Mycorrhizae/*physiology
;
Peas/*enzymology/genetics/microbiology
;
Plant Roots/enzymology/microbiology
;
Protein Structure, Tertiary
;
Rhizobium/genetics
;
Sinorhizobium meliloti/*physiology
;
*Symbiosis
;
Transformation, Genetic
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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