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Trichothecenes and aspinolides produced by Trichoderma arundinaceum regulate expression of Botrytis cinerea genes involved in virulence and growth

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URI: http://hdl.handle.net/10498/20597

DOI: 10.1111/1462-2920.13410

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2016-Trichothecenes and aspinolides produced by Trichoderma arundinaceum regulate expression of Botrytis cinerea genes involved in virulence and growth.pdf (988.9Kb)
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Author/s
G. Malmierca, Mónica; Izquierdo-Bueno Reina, Inmaculada ConcepciónAuthority UCA; McCormick, Susan P.; Cardoza, Rosa Elena; J. Alexander, Nancy; Barua, Javier; Lindo, Laura; A. Casquero, Pedro; González Collado, IsidroAuthority UCA; Monte, Enrique; Gutiérrez, Santiago
Date
2016
Department
Química Orgánica
Source
Environmental Microbiology (2016) 18(11), 3991–4004
Abstract
Trichoderma arundinaceum (Ta37) and Botrytis cinerea (B05.10) produce the sesquiterpenoids harzianum A (HA) and botrydial (BOT), respectively. TaDTri5, an HA non-producer mutant, produces high levels of the polyketide compounds aspinolides (Asp) B and C. We analyzed the role of HA and Asp in the B. cinerea-T. arundinaceum interaction, including changes in BOT production as well as transcriptomic changes of BcBOT genes involved in BOT biosynthesis, and also of genes associated with virulence and ergosterol biosynthesis. We found that exogenously added HA up-regulated the expression of the BcBOT and all the virulence genes analyzed when B. cinerea was grown alone. However, a decrease in the amount of BOT and a down-regulation of BcBOT gene expression was observed in the interaction zone of B05.10- Ta37 dual cultures, compared to TaDTri5. Thus, the confrontation with T. arundinaceum results in an upregulation of most of the B. cinerea genes involved in virulence yet the presence of T. arundinaceum secondary metabolites, HA and AspC, act separately and together to down-regulate the B. cinerea genes analyzed. The present work emphasizes the existence of a chemical cross-regulation between B. cinerea and T. arundinaceum and contributes to understanding how a biocontrol fungus and its prey interact with each other.
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  • Artículos Científicos [4821]
  • Artículos Científicos INBIO [264]
  • Articulos Científicos Quim. Org. [174]
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional

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