Plant sesquiterpenes induce hyphal branching in arbuscular mycorrhizal fungi

@article{Akiyama2005PlantSI,
  title={Plant sesquiterpenes induce hyphal branching in arbuscular mycorrhizal fungi},
  author={Kohki Akiyama and Kenta Matsuzaki and Hideo Hayashi},
  journal={Nature},
  year={2005},
  volume={435},
  pages={824-827}
}
Arbuscular mycorrhizal (AM) fungi form mutualistic, symbiotic associations with the roots of more than 80% of land plants. [] Key Result The natural strigolactones 5-deoxy-strigol, sorgolactone and strigol, and a synthetic analogue, GR24, induced extensive hyphal branching in germinating spores of the AM fungus Gigaspora margarita at very low concentrations.
Strigolactones: host recognition signals for arbuscular mycorrhizal fungi
TLDR
For the first time, a BF is isolated from the roots exudates of Lotus japonicus and identified as a strigolactone, 5-deoxystrigol, by spectroscopic analysis and chemical synthesis, providing a clear answer to a long-standing question in parasitic plant biology: what is the natural role for germination stimulants.
Strigolactones Stimulate Arbuscular Mycorrhizal Fungi by Activating Mitochondria
TLDR
It is concluded that strigolactones are important rhizospheric plant signals involved in stimulating both the pre-symbiotic growth of AM fungi and the germination of parasitic plants.
Strigolactones: chemical signals for fungal symbionts and parasitic weeds in plant roots.
AIMS Arbuscular mycorrhizae are formed between >80 % of land plants and arbuscular mycorrhizal (AM) fungi. This Botanical Briefing highlights the chemical identification of strigolactones as a
ARBUSCULAR MYCORRHIZA – PARTNER IN COMMUNICATION
TLDR
The formation of symbiosis between fungi and host plant requires the exchange of molecular signals between these organisms, which are described as strigolactones and cutin monomers whereas fungal signal molecules are lipo-chito-oligo-saccharides and short chito-OLigosaccharides.
Arbuscular mycorrhiza: the mother of plant root endosymbioses
  • M. Parniske
  • Environmental Science
    Nature Reviews Microbiology
  • 2008
TLDR
During evolution, the genetic programme for AM has been recruited for other plant root symbioses: functional adaptation of a plant receptor kinase that is essential for AM symbiosis paved the way for nitrogen-fixing bacteria to form intracellular symbiosis with plant cells.
Stimulation of asymbiotic sporulation in arbuscular mycorrhizal fungi by fatty acids
TLDR
This work shows that, in addition to a major source of organic carbon, fatty acids act as stimulants to induce infection-competent secondary spores in the asymbiotic stage and could provide the key to developing the axenic production of AM inoculum.
Strigolactone Biosynthesis Genes of Rice are Required for the Punctual Entry of Arbuscular Mycorrhizal Fungi into the Roots
TLDR
The observations establish the requirement for SL biosynthesis genes for efficient hyphopodium formation, suggesting that SLs are required in this process of root colonization, which is required for the punctual internalization of hyphae into roots and maintaining the expansion of colonization.
Initiation of arbuscular mycorrhizal symbiosis involves a novel pathway independent from hyphal branching
TLDR
Surprisingly, when applied to the isolated fungus in vitro, this compound stimulated germ tube elongation but inhibited hyphal branching, suggesting this compound was able to act on the fungal and/or plant partner to facilitate initiation of the arbuscular mycorrhizal symbiosis, independently fromhyphal branching and possibly from the strigolactone pathway.
Strigolactones and Their Role in Arbuscular Mycorrhizal Symbiosis
TLDR
This chapter reviews the current knowledge of strigolactone structural features, and recent advances and prospects in the elucidation of their biosynthetic pathway and of their mode of action.
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