ArticleProceedings of the National Academy of Sciences of the United States of America2015
Plant-derived antifungal agent poacic acid targets β-1,3-glucan.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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48 citing papers in PubMed, 105 citations in OpenAlex.
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- A study of genomic complexity underlying multidrug resistance in Candida auris strains in Thailand.Scientific reports · 2025Article
- A Plant-Derived Antifungal Agent, Poacic Acid, Inhibits Germination and Tube Growth of Lily Pollen.Plants (Basel, Switzerland) · 2025Article
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- High value valorization of lignin as environmental benign antimicrobial.Materials today. Bio · 2023Review
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- Caspofungin resistance in Candida albicans: genetic factors and synergistic compounds for combination therapies.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2022Review
- Jerveratrum-Type Steroidal Alkaloids Inhibit β-1,6-Glucan Biosynthesis in Fungal Cell Walls.Microbiology spectrum · 2022Article
- High-throughput platform for yeast morphological profiling predicts the targets of bioactive compounds.NPJ systems biology and applications · 2022Article
- Prospects for anti-Cell surface (Amsterdam, Netherlands) · 2021Review
- A value-added application of eugenol as acaricidal agent: The mechanism of action and the safety evaluation.Journal of advanced research · 2021Article
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Authors and funding
20 authors at 6 institutions in 3 countries.
Funding
Abstract
A rise in resistance to current antifungals necessitates strategies to identify alternative sources of effective fungicides. We report the discovery of poacic acid, a potent antifungal compound found in lignocellulosic hydrolysates of grasses. Chemical genomics using Saccharomyces cerevisiae showed that loss of cell wall synthesis and maintenance genes conferred increased sensitivity to poacic acid. Morphological analysis revealed that cells treated with poacic acid behaved similarly to cells treated with other cell wall-targeting drugs and mutants with deletions in genes involved in processes related to cell wall biogenesis. Poacic acid causes rapid cell lysis and is synergistic with caspofungin and fluconazole. The cellular target was identified; poacic acid localized to the cell wall and inhibited β-1,3-glucan synthesis in vivo and in vitro, apparently by directly binding β-1,3-glucan. Through its activity on the glucan layer, poacic acid inhibits growth of the fungi Sclerotinia sclerotiorum and Alternaria solani as well as the oomycete Phytophthora sojae. A single application of poacic acid to leaves infected with the broad-range fungal pathogen S. sclerotiorum substantially reduced lesion development. The discovery of poacic acid as a natural antifungal agent targeting β-1,3-glucan highlights the potential side use of products generated in the processing of renewable biomass toward biofuels as a source of valuable bioactive compounds and further clarifies the nature and mechanism of fermentation inhibitors found in lignocellulosic hydrolysates.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.