Truffles Regulate Plant Root Morphogenesis via the Production of Auxin and Ethylene
TLDR
Results establish the central role of IAA and ethylene as signal molecules in truffle/plant interactions and demonstrate that truffles synthesize ethylene from l-methionine probably through the α-keto-γ-(methylthio)butyric acid pathway.Abstract:
Truffles are symbiotic fungi that form ectomycorrhizas with plant roots. Here we present evidence that at an early stage of the interaction, i.e. prior to physical contact, mycelia of the white truffle Tuber borchii and the black truffle Tuber melanopsorum induce alterations in root morphology of the host Cistus incanus and the nonhost Arabidopsis (Arabidopsis thaliana; i.e. primary root shortening, lateral root formation, root hair stimulation). This was most likely due to the production of indole-3-acetic acid (IAA) and ethylene by the mycelium. Application of a mixture of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid and IAA fully mimicked the root morphology induced by the mycelium for both host and nonhost plants. Application of the single hormones only partially mimicked it. Furthermore, primary root growth was not inhibited in the Arabidopsis auxin transport mutant aux1-7 by truffle metabolites while root branching was less effected in the ethylene-insensitive mutant ein2-LH. The double mutant aux1-7;ein2-LH displayed reduced sensitivity to fungus-induced primary root shortening and branching. In agreement with the signaling nature of truffle metabolites, increased expression of the auxin response reporter DR5∷GFP in Arabidopsis root meristems subjected to the mycelium could be observed, confirming that truffles modify the endogenous hormonal balance of plants. Last, we demonstrate that truffles synthesize ethylene from l-methionine probably through the α-keto-γ-(methylthio)butyric acid pathway. Taken together, these results establish the central role of IAA and ethylene as signal molecules in truffle/plant interactions.read more
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References
More filters
Journal ArticleDOI
Plant sesquiterpenes induce hyphal branching in arbuscular mycorrhizal fungi
TL;DR: Strigolactones are a group of sesquiterpene lactones, previously isolated as seed-germination stimulants for the parasitic weeds Striga and Orobanche, and a synthetic analogue, GR24, induced extensive hyphal branching in germinating spores of the AM fungus Gigaspora margarita at very low concentrations.
Journal ArticleDOI
Efflux-dependent auxin gradients establish the apical–basal axis of Arabidopsis
Jiří Friml,Anne Vieten,Michael Sauer,Dolf Weijers,Dolf Weijers,Heinz Schwarz,Thorsten Hamann,Thorsten Hamann,Remko Offringa,Gerd Jürgens +9 more
TL;DR: The results indicate how the establishment of cell polarity, polar auxin efflux and local auxin response result in apical–basal axis formation of the embryo, and thus determine the axiality of the adult plant.
Journal ArticleDOI
Bacterial volatiles promote growth in Arabidopsis.
Choong-Min Ryu,Mohamed A. Farag,Chia-Hui Hu,Munagala S. Reddy,Han-Xun Wei,Paul W. Paré,Joseph W. Kloepper +6 more
TL;DR: The demonstration that PGPR strains release different volatile blends and that plant growth is stimulated by differences in these volatile blends establishes an additional function for volatile organic compounds as signaling molecules mediating plant–microbe interactions.
Journal ArticleDOI
Recruitment of entomopathogenic nematodes by insect-damaged maize roots
Sergio Rasmann,Tobias G. Köllner,Jörg Degenhardt,Ivan Hiltpold,Stefan Toepfer,Ulrich Kuhlmann,Jonathan Gershenzon,Ted C. J. Turlings +7 more
TL;DR: The first identification of an insect-induced belowground plant signal, (E)-β-caryophyllene, which strongly attracts an entomopathogenic nematode, is reported, which should help enhance the efficacy of nematodes as biological control agents against root pests like D. virgifera.
Journal ArticleDOI
Rhizobium Lipo-Chitooligosaccharide Nodulation Factors: Signaling Molecules Mediating Recognition and Morphogenesis
TL;DR: This review summarizes the current knowledge on the biosynthesis, structure, and function of this new class of signaling molecules and discusses the possibility that these signals could be part of a new family of plant lipo-chitooligosaccharide growth regulators.
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