Comparison of aqueous extracts of Citrus × aurantium and Aloe vera L. as fungistatic control of Fusarium spp


Norma Laura Rodríguez Ávila
Hector Octavio Guerrero Turriza
Delfina Margarita Chan Uc
Milton Carlos Soto Barajas


Aqueous extracts, Aloe, Citrus, control diseases, Fusarium.


Objective: To evaluate the fungistatic capacity of aqueous extracts obtained from Citrus × aurantium (sour orange) and Aloe vera L. on phytopathogenic fungi of the genus Fusarium spp.

Design/Methodology/Approach: Three aqueous extracts were made (aloe peel, aloe peel and gel, and sour orange peel). The inhibition capacity in the in vitro growth of a Fusarium spp. strain was measured using the following concentrations: 750 µg/mL, 500 µg/mL, 250 µg/mL, 1 mg/mL, 5 mg/mL, 10 mg/mL, 20 mg/mL, 50 mg/mL, 70 mg/mL, and 100 mg /mL in each extract. The control was sterile distilled water. The radial growth of the mycelium was measured daily, starting from the infected disc up to the edge of its diameter.

Results: The following extracts recorded a good inhibitory response: 100- and 70-mg concentrations of aloe peel and gel in 1 mL of agar; 70-mg concentration of orange in 1 mL of agar; and 100-mg concentration of aloe peel in 1 mL of agar.

Findings/Conclusions: The aqueous extract of aloe had a 47.5 % inhibitory potential in the radial growth of Fusarium.

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