Multiple Roles and Effects of a Novel Trichoderma Hydrophobin

Fungi belonging to the genus Trichoderma are among the most active and ecologically successful microbes found in natural environments, because they are able to use a variety of substrates and affect the growth of other microbes and virtually any plant species. We isolated and characterized a novel t...

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Main Authors: Michelina Ruocco, Stefania Lanzuise, Nadia Lombardi, Sheridan L. Woo, Francesco Vinale, Roberta Marra, Rosaria Varlese, Gelsomina Manganiello, Alberto Pascale, Valeria Scala, David Turrà, Felice Scala, Matteo Lorito
Format: Article
Language:English
Published: The American Phytopathological Society 2015-02-01
Series:Molecular Plant-Microbe Interactions
Online Access:https://apsjournals.apsnet.org/doi/10.1094/MPMI-07-14-0194-R
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author Michelina Ruocco
Stefania Lanzuise
Nadia Lombardi
Sheridan L. Woo
Francesco Vinale
Roberta Marra
Rosaria Varlese
Gelsomina Manganiello
Alberto Pascale
Valeria Scala
David Turrà
Felice Scala
Matteo Lorito
author_facet Michelina Ruocco
Stefania Lanzuise
Nadia Lombardi
Sheridan L. Woo
Francesco Vinale
Roberta Marra
Rosaria Varlese
Gelsomina Manganiello
Alberto Pascale
Valeria Scala
David Turrà
Felice Scala
Matteo Lorito
author_sort Michelina Ruocco
collection DOAJ
description Fungi belonging to the genus Trichoderma are among the most active and ecologically successful microbes found in natural environments, because they are able to use a variety of substrates and affect the growth of other microbes and virtually any plant species. We isolated and characterized a novel type II hydrophobin secreted by the biocontrol strain MK1 of Trichoderma longibrachiatum. The corresponding gene (Hytlo1) has a multiple role in the Trichoderma–plant–pathogen three-way interaction, while the purified protein displayed a direct antifungal as well as a microbe-associated molecular pattern and a plant growth promotion (PGP) activity. Leaf infiltration with the hydrophobin systemically increased resistance to pathogens and activated defense-related responses involving reactive oxygen species, superoxide dismutase, oxylipin, phytoalexin, and pathogenesis-related protein formation or activity. The hydrophobin was found to enhance development of a variety of plants when applied at very low doses. It particularly stimulated root formation and growth, as demonstrated also by transient expression of the encoding gene in tobacco and tomato. Targeted knock-out of Hytlo1 significantly reduced both antagonistic and PGP effect of the wild-type strain. We conclude that this protein represents a clear example of a molecular factor developed by Trichoderma spp. to establish a mutually beneficial interaction with the colonized plant.
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spelling doaj.art-3d140654ca5540eebb5e2bf9f43a33d52022-12-22T03:04:54ZengThe American Phytopathological SocietyMolecular Plant-Microbe Interactions0894-02821943-77062015-02-0128216717910.1094/MPMI-07-14-0194-RMultiple Roles and Effects of a Novel Trichoderma HydrophobinMichelina RuoccoStefania LanzuiseNadia LombardiSheridan L. WooFrancesco VinaleRoberta MarraRosaria VarleseGelsomina ManganielloAlberto PascaleValeria ScalaDavid TurràFelice ScalaMatteo LoritoFungi belonging to the genus Trichoderma are among the most active and ecologically successful microbes found in natural environments, because they are able to use a variety of substrates and affect the growth of other microbes and virtually any plant species. We isolated and characterized a novel type II hydrophobin secreted by the biocontrol strain MK1 of Trichoderma longibrachiatum. The corresponding gene (Hytlo1) has a multiple role in the Trichoderma–plant–pathogen three-way interaction, while the purified protein displayed a direct antifungal as well as a microbe-associated molecular pattern and a plant growth promotion (PGP) activity. Leaf infiltration with the hydrophobin systemically increased resistance to pathogens and activated defense-related responses involving reactive oxygen species, superoxide dismutase, oxylipin, phytoalexin, and pathogenesis-related protein formation or activity. The hydrophobin was found to enhance development of a variety of plants when applied at very low doses. It particularly stimulated root formation and growth, as demonstrated also by transient expression of the encoding gene in tobacco and tomato. Targeted knock-out of Hytlo1 significantly reduced both antagonistic and PGP effect of the wild-type strain. We conclude that this protein represents a clear example of a molecular factor developed by Trichoderma spp. to establish a mutually beneficial interaction with the colonized plant.https://apsjournals.apsnet.org/doi/10.1094/MPMI-07-14-0194-R
spellingShingle Michelina Ruocco
Stefania Lanzuise
Nadia Lombardi
Sheridan L. Woo
Francesco Vinale
Roberta Marra
Rosaria Varlese
Gelsomina Manganiello
Alberto Pascale
Valeria Scala
David Turrà
Felice Scala
Matteo Lorito
Multiple Roles and Effects of a Novel Trichoderma Hydrophobin
Molecular Plant-Microbe Interactions
title Multiple Roles and Effects of a Novel Trichoderma Hydrophobin
title_full Multiple Roles and Effects of a Novel Trichoderma Hydrophobin
title_fullStr Multiple Roles and Effects of a Novel Trichoderma Hydrophobin
title_full_unstemmed Multiple Roles and Effects of a Novel Trichoderma Hydrophobin
title_short Multiple Roles and Effects of a Novel Trichoderma Hydrophobin
title_sort multiple roles and effects of a novel trichoderma hydrophobin
url https://apsjournals.apsnet.org/doi/10.1094/MPMI-07-14-0194-R
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