Rubens Candido Zimmermann , Carolina Gracia Poitevin , Ana Marta Schafaschek , Milena Ielen , Sofia Bin Macedo , Wanderlei do Amaral , Greissi Tente Giraldi , Edson José Mazarotto , Alessandra Benatto , Carlos Eduardo Nogueira Martins , Beatriz Helena L. N. Sales Maia , Elaine Fernanda Dos Santos , Joatan Machado da Rosa , Henrique da Silva Silveira Duarte
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引用次数: 0
Abstract
Background
Essential oils (EOs) exhibit insecticidal and fungicidal activities against various agricultural pests and pathogenic fungi. Bioprospecting the flora of the Atlantic Forest is crucial for identifying species with potential applications in biopesticide development. The present study aimed to evaluate the insecticidal and fungicidal properties of Drimys brasiliensis essential oil (DBEO) against genus of Sitophilus, Aspergillus and Fusarium along with environmental safety study - seed germination.
Results
GC-MS identified 29 compounds, accounting for 81.31 % of the total chemical composition. DBEO demonstrated greater mortality via fumigation, with rates of 45 % for Sitophilus oryzae and 51.66 % for Sitophilus zeamais. Biochemical analysis revealed reduced glutathione S-transferase and lipid peroxidation in S. oryzae, while S. zeamais exhibited increased activities of esterases (EST-α and EST-β) and acetylcholinesterase. Fungicidal activity via contact inhibition exceeded 95 % at 1.5 % against all isolates, with MIC values ranging from 0.5 % to 1.75 %. Wheat seed germination after DBEO treatment reached 97.3 %.
Conclusions
These findings suggest that DBEO holds promise as a biopesticide for phytosanitary management in storage systems, without impact the germination percent of wheat seeds.
期刊介绍:
Biocatalysis and Agricultural Biotechnology is the official journal of the International Society of Biocatalysis and Agricultural Biotechnology (ISBAB). The journal publishes high quality articles especially in the science and technology of biocatalysis, bioprocesses, agricultural biotechnology, biomedical biotechnology, and, if appropriate, from other related areas of biotechnology. The journal will publish peer-reviewed basic and applied research papers, authoritative reviews, and feature articles. The scope of the journal encompasses the research, industrial, and commercial aspects of biotechnology, including the areas of: biocatalysis; bioprocesses; food and agriculture; genetic engineering; molecular biology; healthcare and pharmaceuticals; biofuels; genomics; nanotechnology; environment and biodiversity; and bioremediation.