Phomentrioloxin: A Phytotoxic Pentasubstituted Geranylcyclohexentriol Produced by Phomopsis sp., a Potential Mycoherbicide for Carthamus lanatus Biocontrol
Article
Article Title | Phomentrioloxin: A Phytotoxic Pentasubstituted Geranylcyclohexentriol Produced by Phomopsis sp., a Potential Mycoherbicide for Carthamus lanatus Biocontrol |
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ERA Journal ID | 40471 |
Article Category | Article |
Authors | Cimmino, Alessio, Andolfi, Anna, Zonno, Maria C., Troise, Ciro, Santini, Antonello, Tuzi, Angela, Vurro, Maurizio, Ash, Gavin and Evidente, Antonio |
Journal Title | Journal of Natural Products |
Journal Citation | 75 (6), pp. 1130-1137 |
Number of Pages | 8 |
Year | Jun 2012 |
ISSN | 0163-3864 |
1520-6025 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/np300200j |
Web Address (URL) | https://pubs.acs.org/doi/10.1021/np300200j |
Abstract | A new phytotoxic geranylcyclohexenetriol, named phomentrioloxin, was isolated from the liquid culture of Phomopsis sp., a fungal pathogen proposed for the biological control of Carthamus lanatus, a widespread and troublesome thistle weed belonging to the Asteraceae family causing severe crop and pastures losses in Australia. The structure of phomentrioloxin was established by spectroscopic, X-ray, and chemical methods as (1S,2S,3S,4S)-3-methoxy-6-(7-methyl-3-methylene-oct-6-en-1-ynyl)cyclohex-5-ene-1,2,4-triol. At a concentration of 6.85 mM, the toxin causes the appearance of necrotic spots when applied to leaves of both host and nonhost plants. It also causes growth and chlorophyll content reduction of fronds of Lemna minor and inhibition of tomato rootlet elongation. Finally, in preliminary bioassays, phomentrioloxin did not show any antibacterial, fungicidal, or zootoxic activities. |
ANZSRC Field of Research 2020 | 300401. Agrochemicals and biocides (incl. application) |
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 | |
Graham Centre for Agricultural Innovation, Australia |
https://research.usq.edu.au/item/v5v97/phomentrioloxin-a-phytotoxic-pentasubstituted-geranylcyclohexentriol-produced-by-phomopsis-sp-a-potential-mycoherbicide-for-carthamus-lanatus-biocontrol
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