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Article

Agave Wilt Susceptibility by Reduction of Free Hexoses in Root Tissue of Agave tequilana Weber var. azul Commercial Plants in the Fructan Accumulation Process

by
Rodrigo Guillermo Mantilla-Blandon
1,
Norma Alejandra Mancilla-Margalli
1,
Joaquín Adolfo Molina-Montes
2,
Jaime Xavier Uvalle-Bueno
3 and
Martín Eduardo Avila-Miranda
1,*
1
Postgraduate Studies and Research Division, Tecnológico Nacional de México/Instituto Tecnológico de Tlajomulco, Circuito Vicente Fernández-Gómez km 10, Tlajomulco de Zúñiga CP 45640, Jalisco, Mexico
2
Postgraduate Studies and Research Division, Tecnológico Nacional de México/Instituto Tecnológico de Tuxtla-Gutiérrez, Carr. Panamericana km 1080, Tuxtla Gutiérrez CP 29050, Chiapas, Mexico
3
Research Department, Casa Cuervo México S.A. de C.V., Circunvalación Sur 51-A, Colonia Las Fuentes, Zapopan CP 45070, Jalisco, Mexico
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2024, 25(13), 7357; https://doi.org/10.3390/ijms25137357
Submission received: 16 May 2024 / Revised: 29 June 2024 / Accepted: 2 July 2024 / Published: 4 July 2024
(This article belongs to the Special Issue Plant Response to Insects and Microbes 2.0)

Abstract

Agave tequilana stems store fructan polymers, the main carbon source for tequila production. This crop takes six or more years for industrial maturity. In conducive conditions, agave wilt disease increases the incidence of dead plants after the fourth year. Plant susceptibility induced for limited photosynthates for defense is recognized in many crops and is known as “sink-induced loss of resistance”. To establish whether A. tequilana is more prone to agave wilt as it ages, because the reduction of water-soluble carbohydrates in roots, as a consequence of greater assembly of highly polymerized fructans, were quantified roots sucrose, fructose, and glucose, as well as fructans in stems of agave plants of different ages. The damage induced by inoculation with Fusarium solani or F. oxysporum in the roots or xylem bundles, respectively, was recorded. As the agave plant accumulated fructans in the stem as the main sink, the amount of these hexoses diminished in the roots of older plants, and root rot severity increased when plants were inoculated with F. solani, as evidence of more susceptibility. This knowledge could help to structure disease management that reduces the dispersion of agave wilt, dead plants, and economic losses at the end of agave’s long crop cycle.
Keywords: root rot; sink-source; low sugar disease; fructans polymerization root rot; sink-source; low sugar disease; fructans polymerization

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MDPI and ACS Style

Mantilla-Blandon, R.G.; Mancilla-Margalli, N.A.; Molina-Montes, J.A.; Uvalle-Bueno, J.X.; Avila-Miranda, M.E. Agave Wilt Susceptibility by Reduction of Free Hexoses in Root Tissue of Agave tequilana Weber var. azul Commercial Plants in the Fructan Accumulation Process. Int. J. Mol. Sci. 2024, 25, 7357. https://doi.org/10.3390/ijms25137357

AMA Style

Mantilla-Blandon RG, Mancilla-Margalli NA, Molina-Montes JA, Uvalle-Bueno JX, Avila-Miranda ME. Agave Wilt Susceptibility by Reduction of Free Hexoses in Root Tissue of Agave tequilana Weber var. azul Commercial Plants in the Fructan Accumulation Process. International Journal of Molecular Sciences. 2024; 25(13):7357. https://doi.org/10.3390/ijms25137357

Chicago/Turabian Style

Mantilla-Blandon, Rodrigo Guillermo, Norma Alejandra Mancilla-Margalli, Joaquín Adolfo Molina-Montes, Jaime Xavier Uvalle-Bueno, and Martín Eduardo Avila-Miranda. 2024. "Agave Wilt Susceptibility by Reduction of Free Hexoses in Root Tissue of Agave tequilana Weber var. azul Commercial Plants in the Fructan Accumulation Process" International Journal of Molecular Sciences 25, no. 13: 7357. https://doi.org/10.3390/ijms25137357

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