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Search for Snail Repellents: Antimollusc Activities from Stemona parviflora and Six Other Chinese Stemona Species
Journal of Agricultural and Food Chemistry ( IF 6.1 ) Pub Date : 2024-03-14 , DOI: 10.1021/acs.jafc.3c07103 Hui-dan Teng 1, 2 , Cheng-yong Tan 3 , Yan-ni He 4 , Xiang-hai Cai 3 , Gao Chen 1, 2
Journal of Agricultural and Food Chemistry ( IF 6.1 ) Pub Date : 2024-03-14 , DOI: 10.1021/acs.jafc.3c07103 Hui-dan Teng 1, 2 , Cheng-yong Tan 3 , Yan-ni He 4 , Xiang-hai Cai 3 , Gao Chen 1, 2
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Snails are important agricultural pests difficult to control, but data regarding molluscicidal assays are scant. Stemona alkaloids are typical secondary metabolites for the taxa and have been broadly investigated for their pharmacological and toxicological effects. This makes it possible for us to further develop the toxicities of these compounds to snails. In this work, we tested the antifeedant properties of leaves from seven Chinese Stemona species against the land snail species Bradybaena ravida in choice and non-choice feeding assays. The tested leaves Stemona parviflora exhibited the most deterrent effects, and a further phytochemical investigation of aerial parts led to the identification of 16 alkaloids. Among them, three novel alkaloids could be identified. The alkaloidal fraction and single alkaloids were further assayed against this snail species, and the results suggest a cocktail effect because the impact of the alkaloidal fraction was higher than the effects caused by single alkaloids. The study can promote the search process of natural antimollusc products from plants to control snails.
更新日期：2024-03-14
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