Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum

Trabajo presentado en la XIII Meeting of the IOBC Working Group "Biological Control of Fungal and Bacterial Plant Pathogens", celebrada en Uppsala del 15 al 18 de junio de 2014.

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Main Authors: Ruano Rosa, David, Rincón Romero, Ana María, Valderrama, Raquel, Prieto, Pilar, Begara Morales, Juan Carlos, Gómez-Rodríguez, María Victoria, Mercado-Blanco, Jesús, Barroso-Albarracín, Juan Bautista
Other Authors: European Commission
Format: póster de congreso biblioteca
Language:English
Published: 2014-06
Online Access:http://hdl.handle.net/10261/160241
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100011011
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spelling dig-ias-es-10261-1602412018-11-03T01:54:47Z Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum Ruano Rosa, David Rincón Romero, Ana María Valderrama, Raquel Prieto, Pilar Begara Morales, Juan Carlos Gómez-Rodríguez, María Victoria Mercado-Blanco, Jesús Barroso-Albarracín, Juan Bautista European Commission Junta de Andalucía Trabajo presentado en la XIII Meeting of the IOBC Working Group "Biological Control of Fungal and Bacterial Plant Pathogens", celebrada en Uppsala del 15 al 18 de junio de 2014. Trichoderma harzianum CECT24l3 has been demonstrated to be an effective biocontrol agent (BCA) ofVerticillíum wilt ( Verticiilium dahliae K leb.) of olive (VWO) under control conditions. Previous works also sho\·ved in vitro mycoparasitism of V dahliae by strain CECT2413 and its ability to promote olivc growth and extemal!intemal colonization in tomato plants. The prcsent study aimed to evaluate the colonization capability of olive roots (var. Picual) by CECT2413 during a prolonged period oftime (> 100 days). A gfp-labelled derivative of CECT2413 and confocai laser scanning microscopy (CLSM) were used. CLSM image1y showed that CECT2413-gfp profusely colonized olive roots during the fírst three days after inoculation (DAI). Mycelium and abundant asexual reproductive structures (conidiophore-like) were clearly visible over the root surface. From this time point, tluorescent fm1gal structures resembling chlamydospores were observed, while a progressive loss of mycel ium became apparent. T'he majority of CECT2413-gfp biomass during this period (from 7-14 DAf) corresponded to conidia and chlamydospores found over the epidermis and root hairs. Colonization preference of specitic root si tes was not evident and conidia, chlamydospores and mycelium were found all over the examined roots. Long-term observations revealed the presence of chlamydospores and conidia on the rhizoplane but lack ofmycelium. !n conclusion, strain CECT2413 is an excellent colonizer of olive roots which helps to understand is dfectiveness asan efficient BCA against VWO. Supported by ERDF-cofinanced grant (AGR-6038) Consejería de Economía, Innovación y Ciencia, Junta de Andalucía, Spain. No 2018-02-07T10:54:21Z 2018-02-07T10:54:21Z 2014-06 póster de congreso http://purl.org/coar/resource_type/c_6670 XIII Meeting of the IOBC Working Group "Biological Control of Fungal and Bacterial Plant Pathogens" (2014) http://hdl.handle.net/10261/160241 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100011011 en Sí open
institution IAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-ias-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IAS España
language English
description Trabajo presentado en la XIII Meeting of the IOBC Working Group "Biological Control of Fungal and Bacterial Plant Pathogens", celebrada en Uppsala del 15 al 18 de junio de 2014.
author2 European Commission
author_facet European Commission
Ruano Rosa, David
Rincón Romero, Ana María
Valderrama, Raquel
Prieto, Pilar
Begara Morales, Juan Carlos
Gómez-Rodríguez, María Victoria
Mercado-Blanco, Jesús
Barroso-Albarracín, Juan Bautista
format póster de congreso
author Ruano Rosa, David
Rincón Romero, Ana María
Valderrama, Raquel
Prieto, Pilar
Begara Morales, Juan Carlos
Gómez-Rodríguez, María Victoria
Mercado-Blanco, Jesús
Barroso-Albarracín, Juan Bautista
spellingShingle Ruano Rosa, David
Rincón Romero, Ana María
Valderrama, Raquel
Prieto, Pilar
Begara Morales, Juan Carlos
Gómez-Rodríguez, María Victoria
Mercado-Blanco, Jesús
Barroso-Albarracín, Juan Bautista
Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum
author_sort Ruano Rosa, David
title Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum
title_short Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum
title_full Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum
title_fullStr Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum
title_full_unstemmed Time course of early and long-term colonization events of olive (Olea europaea L.) roots by Trichoderma harzianum
title_sort time course of early and long-term colonization events of olive (olea europaea l.) roots by trichoderma harzianum
publishDate 2014-06
url http://hdl.handle.net/10261/160241
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100011011
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