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Onderscheka, K.; Tataruch, Frieda; Steineck, Theodora; Klansek, E.; Vodnansky, M.; Wagner, Joachim; Echsel, H.

doi:10.1007/bf02241920

Cited by 5 publications

(1 citation statement)

References 6 publications

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“…A prime example is allicin, which has been extensively studied for its antimicrobial potential [28]. Additionally, dimethyl disulfide (DMDS), a compound derived from the same pathway as MMTS [10,11], is thought to exert toxic effects in the same manner [25,29,30] and has been linked to poisoning and hemolytic anemia in ruminant species after feeding on Brassica plants [25,29,30].…”

Section: Discussionmentioning

confidence: 99%

S-methyl Methanethiosulfonate: Promising Late Blight Inhibitor or Broad Range Toxin?

et al. 2020

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(1) Background: S-methyl methanethiosulfonate (MMTS), a sulfur containing volatile organic compound produced by plants and bacterial species, has recently been described to be an efficient anti-oomycete agent with promising perspectives for the control of the devastating potato late blight disease caused by Phytophthora infestans. However, earlier work raised questions regarding the putative toxicity of this compound. To assess the suitability of MMTS for late blight control in the field, the present study thus aimed at evaluating the effect of MMTS on a wide range of non-target organisms in comparison to P. infestans. (2) Methods: To this end, we exposed P. infestans, as well as different pathogenic and non-pathogenic fungi, bacteria, the nematode Caenorhabditis elegans as well as the plant Arabidopsis thaliana to MMTS treatment and evaluated their response by means of in vitro assays. (3) Results: Our results showed that fungi (both mycelium and spores) tolerated MMTS better than the oomycete P. infestans, but that the compound nevertheless exhibited non-negligible toxic effects on bacteria, nematodes and plants. (4) Conclusions: We discuss the mode of action of MMTS and conclude that even though this compound might be too toxic for chemical application in the field, its strong anti-oomycete activity could still be exploited when naturally released at the site of infection by plant-associated microbes inoculated as biocontrol agents.

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