First Report of in Vitro Biological Agent to Biocontrol of Date Palm Stipe Rot Affected by Fusarium brachygibbosum by Using Pergularia tomentosa L., Aqueous Extract Lemine Baba, Mohamed Robledo Mahón, Tatiana Aranda Ballesteros, Elisabet Antioxidant Antifungal activity Extract Fusarium brachygibbosum Pergularia tomentosa L Stipe rot Palm (Phoenix dactylifera L.) is a specie cultivated in Mauritania. The present study is focus on the potential of the aqueous extract of the Pergularia tomentosa L., as biological control agent against Fusarium brachygibbosum, the main agent of the date palm stipe rot disease in Mauritania. Fungal pathogen was isolated from symptomatic date palm stipe rot disease in Mauritania. The morphological characterization and the molecular identification by sequencing ITS1, ITS2 5.8 RNAr region showed homology of 98% with Fusarium brachygibbosum strain UOA/HCPF 16982 s during in vitro tests on leaves performed to verify its phytopathogenicity. the inhibitory effect of aqueous extract of Pergularia tomentosa L. on the phytopathogenic isolate (Fusarium brachygibbosum) of date palm, on mycelial growth and spore germination was observed. In fact, in vitro on PDA, mycelial growth ranged from 39.23 to 67.7 %, depending on the concentration of the aqueous extract of P. tomentosa. The aqueous extract showed a reduction of spore germination varying from 5.3 to 23.8 %. The minimum inhibitory concentrations varied from 1 to 100 mg/ml. the various extracts give high antioxidant activities exhibited by DPPH assay. Multivariant analysis by PCA plot and the heatmap were done, to evaluate the correlation between the tested parameters. These results suggest the use of Pergularia tomentosa L., extract as a biological agent to control and reduce damage caused by Fusarium brachygibbosum. 2023-10-04T09:55:33Z 2023-10-04T09:55:33Z 2023-07-24 info:eu-repo/semantics/article Lemine Baba, M., Essghaier, B., Robledo-Mahón, T., Abidine, M. M., Aranda, E., Sanchez, J. ... Vadel, A. (2023). First Report of in vitro Biological Agent to Biocontrol of Date Palm Stipe Rot Affected by Fusarium brachygibbosum by Using Pergularia tomentosa L., Aqueous Extract. Journal of Ecological Engineering, 24(9), 373-384. [https://doi.org/10.12911/22998993/169381] https://hdl.handle.net/10481/84829 10.12911/22998993/169381 eng http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional