Effect of Water Stress on Enzymatic Activity in two Strawberry Cultivars (Fragaria x ananassa)

Authors

  • Diana Rocio Ruiz-Saénz Universidad Politécnica del Valle de Toluca
  • Miriam Ivonne Maldonado-Rosales Universidad Politécnica del Valle de Toluca
  • Erika Selene García-Nava Universidad Politécnica del Valle de Toluca
  • Aníbal Uriel Reyes-Mérida Universidad Politécnica del Valle de Toluca https://orcid.org/0009-0002-1731-0083
  • Alicia Pineda-Santos Universidad Politécnica del Valle de Toluca
  • Jair Jesús Sánchez-Valdés Universidad Politécnica del Valle de Toluca

DOI:

https://doi.org/10.28940/terralatinoamericana.v43i.2006

Keywords:

enzymes, oxidative stress, drought

Abstract

Strawberry (Fragaria x ananassa) is a fruit produced in the central region of Mexico. This crop is af fected by unfavorable climatic conditions such as drought. The aim of this study was to evaluate the ef fect of water stress and its relationship with changes in enzym activity of the antioxidant system in the cultivars ‘Camino Real’ and ‘Cabrillo’ in the Toluca Valley. The experiment was divided into three phases: F0 (initial), F1 (drought phase) – divided into two dif ferent water regimes: a) optimal or control and b) zero regime and F2 (recovery phase), where the zero regime was subsequently re-irrigated to optimal levels. The enzymatic activities of catalase (CAT) and peroxidase (POX) were evaluated, as well as the concentrations of hydrogen peroxide (H2O2) and proline. A randomized design was established, with three
replicates and 15 experimental units each one. F0 showed dif ferences in all variables
between cultivars. In the zero regime (F1), compared to the control, the ‘Camino Real’ cultivar showed a 36.03% increase in POX activity and a 22.95% decrease in CAT activity, while ‘Cabrillo’ exhibited a 69.43% decrease in POX activity and a 31.26% increase in CAT activity. H2O2 and proline concentrations increased in both cultivars. In F2, no dif ferences in enzymatic activities were found between the cultivars. The determination of enzymes and osmolytes can serve as indicators of strawberry cultivars with drought stress tolerance traits in new geographical regions. It was concluded that the ‘Camino Real’ cultivar exhibited drought tolerance through enzymatic mechanisms, while the ‘Cabrillo’ cultivar demonstrated low tolerance through osmolyte accumulation mechanisms.

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Author Biographies

Miriam Ivonne Maldonado-Rosales, Universidad Politécnica del Valle de Toluca

 

Directora de división de Ingeniería en Biotecnología y Negocios Internacionales

Erika Selene García-Nava, Universidad Politécnica del Valle de Toluca

Profesor tiempo completo

Aníbal Uriel Reyes-Mérida, Universidad Politécnica del Valle de Toluca

Profesor de tiempo completo

Alicia Pineda-Santos, Universidad Politécnica del Valle de Toluca

Secretaría Academica

Jair Jesús Sánchez-Valdés, Universidad Politécnica del Valle de Toluca

Rector de la Universidad Politécnica del Valle de Toluca

Published

2025-04-30

How to Cite

Ruiz-Saénz, D. R., Maldonado-Rosales, M. I., García-Nava, E. S., Reyes-Mérida, A. U., Pineda-Santos, A., & Sánchez-Valdés, J. J. (2025). Effect of Water Stress on Enzymatic Activity in two Strawberry Cultivars (Fragaria x ananassa). REVISTA TERRA LATINOAMERICANA, 43. https://doi.org/10.28940/terralatinoamericana.v43i.2006

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Section

Tópicos Selectos en Agroecosistemas

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