Viridepyronone, a New Antifungal 6-Substituted 2<i>H</i>-Pyran-2-one Produced by <i>Trichoderma viride</i>

Evidente, Antonio; Cabras, Annalisa; Maddau, Lucia; Serra, Salvatorica; Andolfi, Anna; Motta, Andréa

doi:10.1021/jf034708j

Cited by 113 publications

(49 citation statements)

References 10 publications

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“…The phytotoxic metabolite from Lasiodiplodia pseudotheobromae used during the current study had no adverse effect on the tested crop, but showed a bioherbicidal effect on all the tested weeds. Some authors have also reported similar results from the use of fungal phytotoxic metabolite (Evidente et al, 2003).…”

Section: Discussionsupporting

confidence: 58%

Effect of Lasiodiplodia pseudotheobromae Isolates, a Potential Bioherbicide for Amaranthus hybridus L. in Maize Culture

et al. 2017

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The use of phytopathogenic fungi in biological control of weeds may represent a promising alternative to the use of chemicals and may lead to the sustainability of agro-ecosystems. In the current study, strain C1136 was developed into various formulations and their activities were compared with a chemical herbicides using glyphosate in a screen house, applying standard procedure. All the bioherbicide treatments gave significantly higher yield component on the following parameters: tasselling, number of cobs, day of silking, number of ears, number of grain/cob, weight of 100 grains, number of cob, weight of cob, and length of cob from maize when compared to the chemical-treated herbicides and weedy cheek. Moreover, the bioherbicidal formulation coded BH4 (32 g of semolina + 6 g kaolin + 20 mL of glycerol + mutant strain of Lasiodiplodia pseudotheobromae + glucose+ sucrose + fructose + dextrose + lactose sugar + peptone) showed the highest activities when compared to other formulations. Conclusively, this study revealed that Lasiodiplodia pseudotheobromae C1136 strain has bioherbicidal activity and could therefore be exploited for large scale production of bioherbicides for weed control in conventional farming, to improve yield and enhance food security.

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Section: Discussionsupporting

confidence: 58%

Effect of Lasiodiplodia pseudotheobromae Isolates, a Potential Bioherbicide for Amaranthus hybridus L. in Maize Culture

et al. 2017

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“…Recently, viridepyronone (18) was isolated from a cultural filtrate of a strain of T. viride. This compound showed antagonistic activity in vitro against Sclerotium rolfsii at a MIC of 196 lg/ml (>90% inhibition) (Evidente et al 2003).…”

Section: Simple Pyronesmentioning

confidence: 97%

Secondary metabolites from species of the biocontrol agent Trichoderma

et al. 2007

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Trichoderma species are free-living fungi that are highly interactive in root, soil and foliar environments and have been used successfully in field trials to control many crop pathogens. Structural and biological studies of the metabolites isolated from Trichoderma species are reviewed. This review, encompassing all the literature in this field up to the present and in which 269 references are cited, also includes a detailed study of the biological activity of the metabolites, especially the role of these metabolites in biological control mechanisms. Some aspects of the biosynthesis of these metabolites and related compounds are likewise discussed.

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“…Pyrones, related to pyridiones, and epoxy group are structural features which play an important role in the biological activity of some classes of naturally occurring compounds such as some substituted pyrones, 103,104 sequiterpenes eremophilanes, 105 trichothecenes, verrucarins and cytochalasins, [106][107][108] and sphaeropsidones. 50 Therefore, the marked reduction or the total loss of both phytotoxic and antifungal activities of two isomeric 4-hydroxy-6-methyl-2-pyridone derivatives 24 and 25 ( Fig.…”

Section: S Sapinea (Isolated From An Infected Cypress Tree) Toxinsmentioning

confidence: 99%

Relationships between the stereochemistry and biological activity of fungal phytotoxins

2011

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Toxins produced by phytopathogenic fungi assume great importance because of their involvement in several plant diseases. Although such pathogens are known to have seriously damaged crops, forest, and environmental resources, they represent a very important tool to develop new environmentally friendly herbicides and fungicides. This review deals with the relationships between the biological activity of some phytotoxins produced by pathogenic fungi for major forest plants and for damaging weeds and their stereochemistry. In particular, the methods used to determine their relative and/or absolute configuration will be illustrated. These include the application of Mosher's and Murata's methods, X-ray diffractometric analysis, circular dichroism, and the use of computational methods to determine the theoretical optical rotatory power as well as the CD spectrum. The importance of determining the absolute configuration to achieve the total synthesis of some phytotoxins, interesting for their potential practical application, is also discussed.

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Viridepyronone, a New Antifungal 6-Substituted 2H-Pyran-2-one Produced by Trichoderma viride

Cited by 113 publications

References 10 publications

Effect of Lasiodiplodia pseudotheobromae Isolates, a Potential Bioherbicide for Amaranthus hybridus L. in Maize Culture

Effect of Lasiodiplodia pseudotheobromae Isolates, a Potential Bioherbicide for Amaranthus hybridus L. in Maize Culture

Secondary metabolites from species of the biocontrol agent Trichoderma

Relationships between the stereochemistry and biological activity of fungal phytotoxins

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