Plant Cell, Tissue and Organ Culture

, Volume 74, Issue 3, pp 237–241

Increased photosyntethic efficiency generated by fungal symbiosis in Agave victoria-reginae

Authors

    • Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C
  • Lilia B. Barragán-Barragán
    • Departamento de Investigacion y DesarrolloTequila Herradura
  • Porfirio Gutiérrez-González
    • Centro Universitario de Ciencias Exactas e Ingenierías, Departamento de MatemáticasUniversidad de Guadalajara
  • Blanca C. Ramírez-Hernández
    • Centro Universitario de Ciencias Biológicas y Agropecuarias, Departamento de Fisiología VegetalUniversidad de Guadalajara
  • José J. Ramírez
    • Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C
  • Benjamín Rodríguez-Garay
    • Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C
Article

DOI: 10.1023/A:1024046925472

Cite this article as:
Obledo, E.N., Barragán-Barragán, L.B., Gutiérrez-González, P. et al. Plant Cell, Tissue and Organ Culture (2003) 74: 237. doi:10.1023/A:1024046925472

Abstract

A unique non-pathogenic strain of Fusarium oxysporum was isolated from field-collected plants of Agave victoria-reginae Moore. It was then re-introduced into micropropagated plants of the same species under greenhouse conditions. The fungic inoculation induced a 225% increase in the length of roots, 50% in the number of root branches and 50% in the number of stomata on the adaxial surface of leaves. Also, an increment of 167% in nocturnal acidity and a 122% in malic acid was observed and nocturnal pH was significantly more acid in the inoculated plants. Total chlorophyll and sugar content increased 14 and 172%, respectively. These results indicate a higher photosynthetic efficiency of the plants inoculated with the fungus than those plants which were not inoculated; therefore the association of this unique F. oxysporum strain with A. victoria-reginae Moore was considered as a beneficial symbiosis.

Agavebeneficial symbiosisCAM plantsendophyteFusarium oxysporum

Copyright information

© Kluwer Academic Publishers 2003