Abstract：
:The arbuscular mycorrhiza (AM) is a symbiosis between most terrestrial plants and fungi of the ancient phylum Glomeromycota. AM improves the uptake of water and mineral nutrients, such as phosphorus (P) and nitrogen (N), of the host plant in exchange for photosynthetically fixed carbon. Successful colonization and a functional interaction between host plant and mycobiont are based upon exchange of signaling molecules at different stages of symbiosis development. Strigolactones, a novel class of plant hormones, are secreted by plant roots stimulating presymbiotic growth of AM fungi. Fungi release soluble signaling molecules, the enigmatic 'Myc factors', that activate early symbiotic root responses. Lysophosphatidylcholine is a lipophilic intraradical mycorrhizal signal triggering plant phosphate transporter gene expression late in AM development through a P-controlled transcriptional mechanism. This enables uptake of orthophosphate released from the AM fungus.
journal_name
Curr Opin Plant Bioljournal_title
Current opinion in plant biologyauthors
Bucher M,Wegmüller S,Drissner Ddoi
10.1016/j.pbi.2009.06.001subject
Has Abstractpub_date
2009-08-01 00:00:00pages
500-7issue
4eissn
1369-5266issn
1879-0356pii
S1369-5266(09)00062-4journal_volume
12pub_type
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