Arabidopsis thaliana root colonization by the nematophagous fungus Pochonia chlamydosporia is modulated by jasmonate signaling and leads to accelerated flowering and improved yield

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Título: Arabidopsis thaliana root colonization by the nematophagous fungus Pochonia chlamydosporia is modulated by jasmonate signaling and leads to accelerated flowering and improved yield
Autor/es: Zavala-González, Ernesto A. | Rodríguez-Cazorla, Encarnación | Escudero Benito, Nuria | Aranda-Martínez, Almudena | Martínez-Laborda, Antonio | Ramírez-Lepe, Mario | Vera, Antonio | Lopez-Llorca, Luis Vicente
Grupo/s de investigación o GITE: Fitopatología
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef"
Palabras clave: Arabidopsis thaliana | Flowering time | Growth promotion | Jasmonate (JA) | Pochonia chlamydosporia | Stress response
Área/s de conocimiento: Botánica
Fecha de publicación: ene-2017
Editor: Wiley
Cita bibliográfica: New Phytologist. 2017, 213(1): 351-364. doi:10.1111/nph.14106
Resumen: · Pochonia chlamydosporia has been intensively studied in nematode control of different crops. We have investigated the interaction between P. chlamydosporia and the model system Arabidopsis thaliana under laboratory conditions in the absence of nematodes. · This study demonstrates that P. chlamydosporia colonizes A. thaliana. Root colonization monitored with green fluorescent protein-tagged P. chlamydosporia and quantitative PCR (qPCR) quantitation methods revealed root cell invasion. Fungal inoculation reduced flowering time and stimulated plant growth, as determined by total FW increase, faster development of inflorescences and siliques, and a higher yield in terms of seed production per plant. · Precocious flowering was associated with significant expression changes in key flowering-time genes. In addition, we also provided molecular and genetic evidence that point towards jasmonate signaling as an important factor to modulate progression of plant colonization by the fungus. · Our results indicate that P. chlamydosporia provides benefits to the plant in addition to its nematophagous activity. This report highlights the potential of P. chlamydosporia to improve yield in economically important crops.
Patrocinador/es: This research was funded by grants from the Spanish Ministry of Economy and Competitiveness (AGL2015-66833-R to L.V.LL., and BIO2014-56321-P to A.V. and A.M-L.).
URI: http://hdl.handle.net/10045/66514
ISSN: 0028-646X (Print) | 1469-8137 (Online)
DOI: 10.1111/nph.14106
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2016 New Phytologist Trust
Revisión científica: si
Versión del editor: http://dx.doi.org/10.1111/nph.14106
Aparece en las colecciones:INV - Fitopatología - Artículos de Revistas

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