Featured
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Article |
Environment and host as large-scale controls of ectomycorrhizal fungi
Analyses of data from 137 forest plots across 20 European countries show that ectomycorrhizal fungal diversity is strongly influenced by environmental and host species factors and provide thresholds to inform ecosystem assessment tools
- Sietse van der Linde
- , Laura M. Suz
- & Martin I. Bidartondo
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Letter |
Evolutionary history resolves global organization of root functional traits
Analyses of a global dataset of plant root traits identify an ancestral conservative strategy based on thick roots and mycorrhizal symbiosis, and an evolutionarily more-recent opportunistic strategy of thin roots that efficiently use photosynthetic carbon for soil exploration.
- Zeqing Ma
- , Dali Guo
- & Lars O. Hedin
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Letter |
Fungal pathogen uses sex pheromone receptor for chemotropic sensing of host plant signals
Fungal pathogens reorient hyphal growth towards their plant hosts in response to chemical signals; here, directed growth of the plant pathogen Fusarium oxysporum towards the roots of the tomato plant is shown to be triggered by class III peroxidases secreted by the tomato plant, with the fungal response requiring a sex pheromone receptor.
- David Turrà
- , Mennat El Ghalid
- & Antonio Di Pietro
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Article |
Receptor-mediated exopolysaccharide perception controls bacterial infection
This paper describes the discovery of the exopolysaccharide receptor (Epr3) in plants, and shows that its expression is induced upon perception of the bacterial Nod factors; the EPR3 receptor recognizes exopolysaccharides on the surface of rhizobia, thus controlling the symbiotic infection of the roots of legumes.
- Y. Kawaharada
- , S. Kelly
- & J. Stougaard
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Correspondence |
Lichens under threat from ash dieback
- Christopher J. Ellis
- , Brian J. Coppins
- & Peter M. Hollingsworth
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News & Views |
The more the merrier
The 'nested' pattern of mutualistic interactions between plants and their pollinators is thought to promote species coexistence. But the key determinant may instead be the number of partners that species have. See Letter p.227
- Stefano Allesina
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Letter
| Open AccessThe Medicago genome provides insight into the evolution of rhizobial symbioses
Sequencing of Medicago truncatula, a model organism of legume biology, shows that genome duplications had a role in the evolution of endosymbiotic nitrogen fixation.
- Nevin D. Young
- , Frédéric Debellé
- & Bruce A. Roe
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Article |
Fungal lipochitooligosaccharide symbiotic signals in arbuscular mycorrhiza
Nitrogen-fixing rhizobia use lipochitooligosaccharide (LCO) signal molecules to initiate a symbiotic relationship with plant roots. Although it has been suggested that mycorrhizal fungi also secrete chemical signals for this process, the identity of these molecules was unknown. It is now shown that like rhizobia, mycorrhizal fungi produce LCOs and that these molecules are important for the establishment of the symbiotic relationship between plant root and fungus.
- Fabienne Maillet
- , Véréna Poinsot
- & Jean Dénarié
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Research Highlights |
Microbial genomics: A happy marriage
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