The fungal endophyte Fusarium solani provokes differential effects on the fitness of two Lotus species.

Autor: Nieva AS; Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús (IIB-INTECH), Av. Intendente Marino km 8.2, Chascomús, 7130, Argentina., Vilas JM; Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús (IIB-INTECH), Av. Intendente Marino km 8.2, Chascomús, 7130, Argentina., Gárriz A; Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús (IIB-INTECH), Av. Intendente Marino km 8.2, Chascomús, 7130, Argentina., Maiale SJ; Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús (IIB-INTECH), Av. Intendente Marino km 8.2, Chascomús, 7130, Argentina., Menéndez AB; Departamento de Biodiversidad y Biología Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires, PROPLAME-PRHIDEB (CONICET), Argentina., Erban A; Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam, Germany., Kopka J; Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam, Germany., Ruiz OA; Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús (IIB-INTECH), Av. Intendente Marino km 8.2, Chascomús, 7130, Argentina; Instituto de Fisiología y Recursos Genéticos Vegetales-Instituto Nacional de Tecnología Agropecuaria (IFRGV-INTA), Camino 60 cuadras km 5.5, Córdoba, 5119, Argentina. Electronic address: ruiz@intech.gov.ar.
Jazyk: angličtina
Zdroj: Plant physiology and biochemistry : PPB [Plant Physiol Biochem] 2019 Nov; Vol. 144, pp. 100-109. Date of Electronic Publication: 2019 Sep 17.
DOI: 10.1016/j.plaphy.2019.09.022
Abstrakt: The interactions established between plants and endophytic fungi span a continuum from beneficial to pathogenic associations. The aim of this work was to isolate potentially beneficial fungal endophytes in the legume Lotus tenuis and explore the mechanisms underlying their effects. One of the nine fungal strains isolated was identified as Fusarium solani and shows the highest phosphate-solubilisation activity, and also grows endophytically in roots of L. japonicus and L. tenuis. Interestingly, fungal invasion enhances plant growth in L. japonicus but provokes a contrasting effect in L. tenuis. These differences were also evidenced when the rate of photosynthesis as well as sugars and K contents were assessed. Our results indicate that the differential responses observed are due to distinct mechanisms deployed during the establishment of the interactions that involve the regulation of photosynthesis, potassium homeostasis, and carbohydrate metabolism. These responses are employed by these plant species to maintain fitness during the endophytic interaction.
(Copyright © 2019 Elsevier Masson SAS. All rights reserved.)
Databáze: MEDLINE
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