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do Socorro Costa M, da Silva ARP, Santos Araújo J, Dos Santos ATL, Fonseca VJA, Gonçalves Alencar G, Moura TF, Gonçalves SA, Filho JMB, Morais-Braga MFB, Andrade-Pinheiro JC, Coutinho HDM. In vitro Evaluation of Fungal Susceptibility and Inhibition of Virulence by Diosgenin. Chem Biodivers 2024:e202400444. [PMID: 38670923 DOI: 10.1002/cbdv.202400444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/12/2024] [Accepted: 04/26/2024] [Indexed: 04/28/2024]
Abstract
Fungal infections are a public health problem that mainly affects immunosuppressed people, Candida spp. have been responsible for most sources of contamination and invasive fungal infections described around the world. The need arises to find new therapeutic approaches to combat growing infections. Plants and natural products have been considered a valuable source for discovering new molecules with active ingredients. Diosgenin is a sapogenin found in the families of Leguminosae and Dioscoreaceae, it is obtained mainly from the dioscin saponin through the hydrolysis method, it is a phytochemical that has been highlighted in the treatment of various diseases, as well as in combating microbial resistance. The present study aimed to evaluate the susceptibility of fungal strains to diosgenin, as well as verify the association with the reference drug and evaluate the inhibition of the virulence factor through morphological changes in the yeast state to the filamentous form of hyphae and pseudohyphae in strains of Candida albicans, Candida tropicalis and Candida krusei using the broth microdilution method and microculture technique. Antifungal assays revealed that diosgenin was not able to inhibit the growth of the tested strains. However, it was able to inhibit the fungal dimorphism of the strains evaluated, however further studies are recommended to verify its effectiveness against other virulence factors.
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Affiliation(s)
- Maria do Socorro Costa
- Graduate Program in Biotechnology, State University of Ceará, Fortaleza, Ceará, Brazil
- Laboratory of Microbiology and Molecular Biology- LMBM, Regional University of Cariri, Crato, Ceará, Brazil
| | - Ana Raquel Pereira da Silva
- Graduate Program in Biotechnology, State University of Ceará, Fortaleza, Ceará, Brazil
- Laboratory of Microbiology and Molecular Biology- LMBM, Regional University of Cariri, Crato, Ceará, Brazil
| | - Juliana Santos Araújo
- Laboratory of Applied Microbiology -, LAMAP, Federal University of Cariri, Barbalha, Ceará, Brazil
| | | | | | - Gabriel Gonçalves Alencar
- Laboratory of Microbiology and Molecular Biology- LMBM, Regional University of Cariri, Crato, Ceará, Brazil
| | - Talysson Felismino Moura
- Laboratory of Microbiology and Molecular Biology- LMBM, Regional University of Cariri, Crato, Ceará, Brazil
| | - Sheila Alves Gonçalves
- Laboratory of Microbiology and Molecular Biology- LMBM, Regional University of Cariri, Crato, Ceará, Brazil
| | - José Maria Barbosa Filho
- Laboratory Technology Pharmaceutical, Federal University of Paraíba, João Pessoa, Paraíba, Brazil
| | | | - Jacqueline Cosmo Andrade-Pinheiro
- Laboratory of Microbiology and Molecular Biology- LMBM, Regional University of Cariri, Crato, Ceará, Brazil
- Laboratory of Applied Microbiology -, LAMAP, Federal University of Cariri, Barbalha, Ceará, Brazil
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Zhou H, Jia S, Gao Y, Li X, Lin Y, Yang F, Ni K. Characterization of phyllosphere endophytic lactic acid bacteria reveals a potential novel route to enhance silage fermentation quality. Commun Biol 2024; 7:117. [PMID: 38253824 PMCID: PMC10803313 DOI: 10.1038/s42003-024-05816-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
The naturally attached phyllosphere microbiota play a crucial role in plant-derived fermentation, but the structure and function of phyllosphere endophytes remain largely unidentified. Here, we reveal the diversity, specificity, and functionality of phyllosphere endophytes in alfalfa (Medicago sativa L.) through combining typical microbial culture, high-throughput sequencing, and genomic comparative analysis. In comparison to phyllosphere bacteria (PB), the fermentation of alfalfa solely with endophytes (EN) enhances the fermentation characteristics, primarily due to the dominance of specific lactic acid bacteria (LAB) such as Lactiplantibacillus, Weissella, and Pediococcus. The inoculant with selected endophytic LAB strains also enhances the fermentation quality compared to epiphytic LAB treatment. Especially, one key endophytic LAB named Pediococcus pentosaceus EN5 shows enrichment of genes related to the mannose phosphotransferase system (Man-PTS) and carbohydrate-metabolizing enzymes and higher utilization of carbohydrates. Representing phyllosphere, endophytic LAB shows great potential of promoting ensiling and provides a novel direction for developing microbial inoculant.
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Affiliation(s)
- Hongzhang Zhou
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shangang Jia
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yu Gao
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Xiaomei Li
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yanli Lin
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Fuyu Yang
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China
- College of Animal Science, Guizhou University, Guiyang, 550025, China
| | - Kuikui Ni
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100193, China.
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