Phomentrioloxin, a Fungal Phytotoxin with Potential Herbicidal Activity, and its Derivatives: A Structure−Activity Relationship Study
Article
Article Title | Phomentrioloxin, a Fungal Phytotoxin with Potential Herbicidal Activity, and its Derivatives: A Structure−Activity Relationship Study |
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ERA Journal ID | 1349 |
Article Category | Article |
Authors | Cimmino, Alessio (Author), Andolfi, Anna (Author), Zonno, Maria Chiara (Author), Boari, Angela (Author), Troise, Ciro (Author), Motta, Andrea (Author), Vurro, Maurizio (Author), Ash, Gavin (Author) and Evidente, Antonio (Author) |
Journal Title | Journal of Agricultural and Food Chemistry |
Journal Citation | 61 (40), pp. 9645-9649 |
Number of Pages | 5 |
Year | 09 Oct 2013 |
Publisher | American Chemical Society |
Place of Publication | United States |
ISSN | 0021-8561 |
1520-5118 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/jf4030618 |
Web Address (URL) | http://pubs.acs.org/doi/abs/10.1021/jf4030618 |
Abstract | Phomentrioloxin is a phytotoxic geranylcyclohexenetriol produced in liquid culture by Phomopsis sp. (teleomorph: Diaporthe gulyae), a potential mycoherbicide proposed for the control of the annual weed Carthamus lanatus. In this study, seven derivatives obtained by chemical modifications of the toxin were assayed for phytotoxic, antimicrobial, and zootoxic activities, and the structure-activity relationships were examined. Each compound was tested on nonhost weedy and agrarian plants, fungi, Gram+ and Gram- bacteria, and on brine shrimp larvae. The results provide insights into an investigation of the structural requirements for activity. The hydroxy groups at C-2 and C-4 appeared to be important features for the phytotoxicity, as well as an unchanged cyclohexentriol ring. A role seemed also to be played by the unsaturations of the geranyl side chain. These findings could be useful for understanding the mechanisms of action of new natural products, for identifying the active sites, and possibly in devising new herbicides of natural origin. |
Keywords | Phomopsis sp.; Diaporthe gulyae; weeds; Carthamus lanatus; phytotoxins; phomentrioloxin; SAR |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300409. Crop and pasture protection (incl. pests, diseases and weeds) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Naples Federico II, Italy |
Institute of Sciences and Food Production, Italy | |
Institute of Sciences and Food Production, Italy | |
Institute of Biomolecular Chemistry, Italy | |
Charles Sturt University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q42xq/phomentrioloxin-a-fungal-phytotoxin-with-potential-herbicidal-activity-and-its-derivatives-a-structure-activity-relationship-study
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