1
|
Deng SQ, Li N, Yang XK, Lu HZ, Liu JH, Peng ZY, Wang LM, Zhang M, Zhang C, Chen C. Recombinant Beauveria bassiana expressing Bacillus thuringiensis toxin Cyt1Aa: a promising approach for enhancing Aedes mosquito control. Microbiol Spectr 2024:e0379223. [PMID: 38809029 DOI: 10.1128/spectrum.03792-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 04/20/2024] [Indexed: 05/30/2024] Open
Abstract
The entomopathogenic fungus Beauveria bassiana provides an eco-friendly substitute to chemical insecticides for mosquito control. Nevertheless, its widespread application has been hindered by its comparatively slow efficacy in eliminating mosquitoes. To augment the potency of B. bassiana against Aedes mosquitoes, a novel recombinant strain, Bb-Cyt1Aa, was developed by incorporating the Bacillus thuringiensis toxin gene Cyt1Aa into B. bassiana. The virulence of Bb-Cyt1Aa was evaluated against Aedes aegypti and Aedes albopictus using insect bioassays. Compared to the wild-type (WT) strain, the median lethal time (LT50) for A. aegypti larvae infected with Bb-Cyt1Aa decreased by 33.3% at a concentration of 1 × 108 conidia/mL and by 22.2% at 1 × 107 conidia/mL. The LT50 for A. aegypti adults infected with Bb-Cyt1Aa through conidia ingestion was reduced by 37.5% at 1 × 108 conidia/mL and by 33.3% at 1 × 107 conidia/mL. Likewise, the LT50 for A. aegypti adults infected with Bb-Cyt1Aa through cuticle contact decreased by 33.3% and 30.8% at the same concentrations, respectively. Furthermore, the Bb-Cyt1Aa strain also demonstrated increased toxicity against both larval and adult A. albopictus, when compared to the WT strain. In conclusion, our study demonstrated that the expression of B. thuringiensis toxin Cyt1Aa in B. bassiana enhanced its virulence against Aedes mosquitoes. This suggests that B. bassiana expressing Cyt1Aa has potential value for use in mosquito control. IMPORTANCE Beauveria bassiana is a naturally occurring fungus that can be utilized as a bioinsecticide against mosquitoes. Cyt1Aa is a delta-endotoxin protein produced by Bacillus thuringiensis that exhibits specific and potent insecticidal activity against mosquitoes. In our study, the expression of this toxin Cyt1Aa in B. bassiana enhances the virulence of B. bassiana against Aedes aegypti and Aedes albopictus, thereby increasing their effectiveness in killing mosquitoes. This novel strain can be used alongside chemical insecticides to reduce dependence on harmful chemicals, thereby minimizing negative impacts on the environment and human health. Additionally, the potential resistance of B. bassiana against mosquitoes in the future could be overcome by acquiring novel combinations of exogenous toxin genes. The presence of B. bassiana that expresses Cyt1Aa is of significant importance in mosquito control as it enhances genetic diversity, creates novel virulent strains, and contributes to the development of safer and more sustainable methods of mosquito control.
Collapse
Affiliation(s)
- Sheng-Qun Deng
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, Anhui Medical University, Hefei, China
| | - Ni Li
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Xu-Ke Yang
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, Anhui Medical University, Hefei, China
| | - Hong-Zheng Lu
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Jia-Hua Liu
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Zhe-Yu Peng
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Lin-Min Wang
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Mao Zhang
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, Anhui Medical University, Hefei, China
| | - Chao Zhang
- Department of Pathogen Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, Anhui Medical University, Hefei, China
| | - Chen Chen
- Anhui Province Key Laboratory of Zoonoses, the Key Laboratory of Zoonoses of High Institutions in Anhui, Anhui Medical University, Hefei, China
- Department of Microbiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| |
Collapse
|
2
|
Kim JC, Hwang IM, Kim HM, Kim S, Shin TS, Woo SD, Park HW. Rapid analysis of insecticidal metabolites from the entomopathogenic fungus Beauveria bassiana 331R using UPLC-Q-Orbitrap MS. Mycotoxin Res 2024; 40:123-132. [PMID: 37968430 DOI: 10.1007/s12550-023-00509-y] [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: 09/07/2023] [Revised: 10/18/2023] [Accepted: 11/06/2023] [Indexed: 11/17/2023]
Abstract
Beauveria bassiana, a representative entomopathogenic fungus, is increasingly being utilized as an eco-friendly pest management alternative to chemical insecticides. This fungus produces a range of insecticidal secondary metabolites that act as antimicrobial and immunosuppressive agents. However, detailed qualitative and quantitative analysis related to these compounds remains scarce, we developed a method for the rapid analysis of these metabolites. Eight secondary metabolites (bassianin, bassianolide, beauvericin, beauveriolide I, enniatin A, A1, and B, and tenellin) were efficiently extracted when B. bassiana-infected Tenebrio molitor larvae were ground in 70% EtOH extraction solvent and subsequently subjected to ultrasonic treatment for 30 min. The eight metabolites were rapidly and simultaneously analyzed using ultra-performance liquid chromatography-quadrupole-Orbitrap mass spectrometry (UPLC-Q-Orbitrap MS). Bassianolide (20.6-51.1 µg/g) and beauvericin (63.6-109.8 µg/g) were identified as the main metabolites in B. basssiana-infected larvae, indicating that they are likely major toxins of B. bassiana. Validation of the method exhibited recovery rates in the range of 80-115% and precision in the range of 0.1-8.0%, indicating no significant interference from compounds in the matrix. We developed a method to rapidly analyze eight insecticidal metabolites using UPLC-Q-Orbitrap MS. This can be extensively utilized for detecting and producing insecticidal fungal secondary metabolites.
Collapse
Affiliation(s)
- Jong-Cheol Kim
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju, 61755, Republic of Korea
| | - In Min Hwang
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju, 61755, Republic of Korea
| | - Ho Myeong Kim
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju, 61755, Republic of Korea
| | - Seulbi Kim
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju, 61755, Republic of Korea
- Division of Applied Bioscience & Biotechnology, Chonnam National University, Gwangju, 500-757, Republic of Korea
| | - Teak Su Shin
- R&D Center, Solvm Co., Ltd., Daejeon, 34014, Republic of Korea
| | - Soo-Dong Woo
- Department of Agricultural Biology, College of Agriculture, Life & Environment Science, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Hae Woong Park
- Technology Innovation Research Division, World Institute of Kimchi, Gwangju, 61755, Republic of Korea.
| |
Collapse
|
3
|
Li X, Hu S, Cai Y, Liu X, Luo J, Wu T. Revving the engine: PKB/AKT as a key regulator of cellular glucose metabolism. Front Physiol 2024; 14:1320964. [PMID: 38264327 PMCID: PMC10804622 DOI: 10.3389/fphys.2023.1320964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 12/12/2023] [Indexed: 01/25/2024] Open
Abstract
Glucose metabolism is of critical importance for cell growth and proliferation, the disorders of which have been widely implicated in cancer progression. Glucose uptake is achieved differently by normal cells and cancer cells. Even in an aerobic environment, cancer cells tend to undergo metabolism through glycolysis rather than the oxidative phosphorylation pathway. Disordered metabolic syndrome is characterized by elevated levels of metabolites that can cause changes in the tumor microenvironment, thereby promoting tumor recurrence and metastasis. The activation of glycolysis-related proteins and transcription factors is involved in the regulation of cellular glucose metabolism. Changes in glucose metabolism activity are closely related to activation of protein kinase B (PKB/AKT). This review discusses recent findings on the regulation of glucose metabolism by AKT in tumors. Furthermore, the review summarizes the potential importance of AKT in the regulation of each process throughout glucose metabolism to provide a theoretical basis for AKT as a target for cancers.
Collapse
Affiliation(s)
- Xia Li
- General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shuying Hu
- General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yaoting Cai
- General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xuelian Liu
- General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Luo
- General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Wu
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| |
Collapse
|
4
|
Zeng Z, Jin S, Xiang X, Yuan H, Jin Y, Shi Q, Zhang Y, Yang M, Zhang L, Huang R, Song C. Dynamical changes of tea metabolites fermented by Aspergillus cristatus, Aspergillus neoniger and mixed fungi: A temporal clustering strategy for untargeted metabolomics. Food Res Int 2023; 170:112992. [PMID: 37316065 DOI: 10.1016/j.foodres.2023.112992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 06/16/2023]
Abstract
Dark tea fermentation involves various fungi, but studies focusing on the mixed fermentation in tea remain limited. This study investigated the influences of single and mixed fermentation on the dynamical alterations of tea metabolites. The differential metabolites between unfermented and fermented teas were determined using untargeted metabolomics. Dynamical changes in metabolites were explored by temporal clustering analysis. Results indicated that Aspergillus cristatus (AC) at 15 days, Aspergillus neoniger (AN) at 15 days, and mixed fungi (MF) at 15 days had respectively 68, 128 and 135 differential metabolites, compared with unfermentation (UF) at 15 days. Most of metabolites in the AN or MF group showed a down-regulated trend in cluster 1 and 2, whereas most of metabolites in the AC group showed an up-regulated trend in cluster 3 to 6. The three key metabolic pathways mainly composed of flavonoids and lipids included flavone and flavonol biosynthesis, glycerophospholipid metabolism and flavonoid biosynthesis. Based on the dynamical changes and metabolic pathways of the differential metabolites, AN showed a predominant status in MF compared with AC. Together, this study will advance the understanding of dynamic changes in tea fermentation and provide valuable insights into the processing and quality control of dark tea.
Collapse
Affiliation(s)
- Zhaoxiang Zeng
- College of Pharmacy, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Shuna Jin
- College of Basic Medicine, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Xingliang Xiang
- School of Life Sciences, Hainan University, 58 Renmin Avenue, Meilan District, 570228 Haikou, Hainan, China
| | - Hao Yuan
- College of Pharmacy, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Yuehui Jin
- College of Pharmacy, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Qingxin Shi
- College of Pharmacy, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Yanmei Zhang
- College of Basic Medicine, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Min Yang
- College of Basic Medicine, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Lijun Zhang
- College of Basic Medicine, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China
| | - Rongzeng Huang
- College of Pharmacy, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China.
| | - Chengwu Song
- College of Pharmacy, Hubei University of Chinese Medicine, 16 Huangjiahu West Road, Hongshan District, 430065 Wuhan, Hubei, China.
| |
Collapse
|
5
|
Rodríguez-Moraga N, Ramos-Martín F, Buchoux S, Rippa S, D'Amelio N, Sarazin C. The effect of rhamnolipids on fungal membrane models as described by their interactions with phospholipids and sterols: An in silico study. Front Chem 2023; 11:1124129. [PMID: 36895318 PMCID: PMC9989204 DOI: 10.3389/fchem.2023.1124129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/06/2023] [Indexed: 02/23/2023] Open
Abstract
Introduction: Rhamnolipids (RLs) are secondary metabolites naturally produced by bacteria of the genera Pseudomonas and Burkholderia with biosurfactant properties. A specific interest raised from their potential as biocontrol agents for crop culture protection in regard to direct antifungal and elicitor activities. As for other amphiphilic compounds, a direct interaction with membrane lipids has been suggested as the key feature for the perception and subsequent activity of RLs. Methods: Molecular Dynamics (MD) simulations are used in this work to provide an atomistic description of their interactions with different membranous lipids and focusing on their antifungal properties. Results and discussion: Our results suggest the insertion of RLs into the modelled bilayers just below the plane drawn by lipid phosphate groups, a placement that is effective in promoting significant membrane fluidification of the hydrophobic core. This localization is promoted by the formation of ionic bonds between the carboxylate group of RLs and the amino group of the phosphatidylethanolamine (PE) or phosphatidylserine (PS) headgroups. Moreover, RL acyl chains adhere to the ergosterol structure, forming a significantly higher number of van der Waals contact with respect to what is observed for phospholipid acyl chains. All these interactions might be essential for the membranotropic-driven biological actions of RLs.
Collapse
Affiliation(s)
- Nely Rodríguez-Moraga
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, France
| | - Francisco Ramos-Martín
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, France
| | - Sébastien Buchoux
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, France
| | - Sonia Rippa
- Unité de Génie Enzymatique et Cellulaire, CNRS UMR 7025, Sorbonne Universités, Université de Technologie de Compiègne, Compiègne, France
| | - Nicola D'Amelio
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, France
| | - Catherine Sarazin
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, France
| |
Collapse
|
6
|
Ramos-Martín F, D'Amelio N. Biomembrane lipids: When physics and chemistry join to shape biological activity. Biochimie 2022; 203:118-138. [PMID: 35926681 DOI: 10.1016/j.biochi.2022.07.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 07/13/2022] [Accepted: 07/21/2022] [Indexed: 11/02/2022]
Abstract
Biomembranes constitute the first lines of defense of cells. While small molecules can often permeate cell walls in bacteria and plants, they are generally unable to penetrate the barrier constituted by the double layer of phospholipids, unless specific receptors or channels are present. Antimicrobial or cell-penetrating peptides are in fact highly specialized molecules able to bypass this barrier and even discriminate among different cell types. This capacity is made possible by the intrinsic properties of its phospholipids, their distribution between the internal and external leaflet, and their ability to mutually interact, modulating the membrane fluidity and the exposition of key headgroups. Although common phospholipids can be found in the membranes of most organisms, some are characteristic of specific cell types. Here, we review the properties of the most common lipids and describe how they interact with each other in biomembrane. We then discuss how their assembly in bilayers determines some key physical-chemical properties such as permeability, potential and phase status. Finally, we describe how the exposition of specific phospholipids determines the recognition of cell types by membrane-targeting molecules.
Collapse
Affiliation(s)
- Francisco Ramos-Martín
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, 80039, France.
| | - Nicola D'Amelio
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, 80039, France.
| |
Collapse
|
7
|
Quiroga-Cubides G, García-Riaño L, Grijalba-Bernal EP, Espinel C, Cuartas Otálora PE, Guevara EJ, Gómez-Álvarez MI, Cruz Barrera M. Assessment of a potential bioproduct for controlling Cerotoma arcuata tingomariana (Coleoptera: Chrysomelidae). J Appl Microbiol 2022; 133:1063-1077. [PMID: 35598181 DOI: 10.1111/jam.15630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/02/2022] [Accepted: 05/18/2022] [Indexed: 11/27/2022]
Abstract
AIMS The leaf-feeding pest Cerotoma arcuata tingomariana (Bechyné) (Coleoptera: Chrysomelidae) produces huge economic losses in different crops. This study aimed to produce conidia by semisolid-state fermentation and to establish the insecticidal activity of two formulation prototypes based on a native Beauveria bassiana isolate for controlling this pest. METHODS AND RESULTS A novel fabric-based semisolid-state fermentation strategy for quick and large-scale conidia production was performed and characterized. Conidia were formulated as an emulsifiable concentrate (EC) and a water-dispersible granulate (WG). Afterwards, the mortality of C. a. tingomariana adults was assessed. A conidia concentration of 2.9 x109 conidia cm-2 was obtained after nine days-course fermentation and a yield of 33.4 g kg-1 dry-substrate. CONCLUSIONS The polyester fabric-based fermentation is an efficient technique for producing and collecting B. bassiana spores. Regarding LC90 , the potency analysis showed that the EC was 21-fold more potent than the non-formulated conidia, and ~2.6-fold more potent than the WG. SIGNIFICANCE AND IMPACT OF STUDY A high throughput fermentation based on polyester fabric as support for B. bassiana conidia production and subsequent formulation as an EC comprises a promising strategy for obtaining a bioproduct to control adults of C. a. tingomariana and other Chrysomelidae pests.
Collapse
Affiliation(s)
- Ginna Quiroga-Cubides
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia
| | - Lorena García-Riaño
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación Tibaitatá, Mosquera, Colombia
| | - Erika P Grijalba-Bernal
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia
| | - Carlos Espinel
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación Tibaitatá, Mosquera, Colombia
| | - Paola Emilia Cuartas Otálora
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia.,Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación Tibaitatá, Mosquera, Colombia
| | - Elsa Judith Guevara
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Centro de Investigación La Libertad, Meta, Colombia
| | - Martha Isabel Gómez-Álvarez
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia
| | - Mauricio Cruz Barrera
- Corporación Colombiana de Investigación Agropecuaria - Agrosavia, Departamento de Bioproductos, Mosquera, Colombia
| |
Collapse
|
8
|
Fungal morphology: a challenge in bioprocess engineering industries for product development. Curr Opin Chem Eng 2022. [DOI: 10.1016/j.coche.2021.100729] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
9
|
Ramos-Martín F, Herrera-León C, D'Amelio N. Molecular basis of the anticancer, apoptotic and antibacterial activities of Bombyx mori Cecropin A. Arch Biochem Biophys 2022; 715:109095. [PMID: 34826396 DOI: 10.1016/j.abb.2021.109095] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/10/2021] [Accepted: 11/23/2021] [Indexed: 02/06/2023]
Abstract
As Cecropin XJ, Cecropin A from Bombyx mori is one of the very few antimicrobial peptides having shown activity against esophageal cancer cells. It displays remarkable sequence-similarity to Cecropin XJ but slightly enhanced activity. In this work we show by NMR that both peptides are unstructured in solution but get structured in the presence of DPC micelles, mimicking the surface of biological membranes. In order to get insight into the molecular basis of its anticancer, antimicrobial and antifungal activity, we have investigated by MD simulations their interaction with a large variety of lipid bilayers mimicking cancer, mitochondrial, bacterial and fungal membranes. At variance with CecXJ, organized in two main helices, CecA tends to form a three helix bundle resulting in enhanced adaptability to its membrane targets. A specificity for the headgroup of phosphatidylserine and affinity for phosphatidylglycerol and cardiolipin may account for its selective targeting of cancer, bacterial and mitochondrial membranes, respectively.
Collapse
Affiliation(s)
- Francisco Ramos-Martín
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, 80039, France.
| | - Claudia Herrera-León
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, 80039, France
| | - Nicola D'Amelio
- Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, 80039, France.
| |
Collapse
|
10
|
Oppong-Danquah E, Blümel M, Scarpato S, Mangoni A, Tasdemir D. Induction of Isochromanones by Co-Cultivation of the Marine Fungus Cosmospora sp. and the Phytopathogen Magnaporthe oryzae. Int J Mol Sci 2022; 23:782. [PMID: 35054969 PMCID: PMC8775470 DOI: 10.3390/ijms23020782] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/07/2022] [Accepted: 01/09/2022] [Indexed: 02/04/2023] Open
Abstract
Microbial co-cultivation is a promising approach for the activation of biosynthetic gene clusters (BGCs) that remain transcriptionally silent under artificial culture conditions. As part of our project aiming at the discovery of marine-derived fungal agrochemicals, we previously used four phytopathogens as model competitors in the co-cultivation of 21 marine fungal strains. Based on comparative untargeted metabolomics analyses and anti-phytopathogenic activities of the co-cultures, we selected the co-culture of marine Cosmospora sp. with the phytopathogen Magnaporthe oryzae for in-depth chemical studies. UPLC-MS/MS-based molecular networking (MN) of the co-culture extract revealed an enhanced diversity of compounds in several molecular families, including isochromanones, specifically induced in the co-culture. Large scale co-cultivation of Cosmospora sp. and M. oryzae resulted in the isolation of five isochromanones from the whole co-culture extract, namely the known soudanones A, E, D (1-3) and their two new derivatives, soudanones H-I (4-5), the known isochromans, pseudoanguillosporins A and B (6, 7), naphtho-γ-pyrones, cephalochromin and ustilaginoidin G (8, 9), and ergosterol (10). Their structures were established by NMR, HR-ESIMS, FT-IR, electronic circular dichroism (ECD) spectroscopy, polarimetry ([α]D), and Mosher's ester reaction. Bioactivity assays revealed antimicrobial activity of compounds 2 and 3 against the phytopathogens M. oryzae and Phytophthora infestans, while pseudoanguillosporin A (6) showed the broadest and strongest anti-phytopathogenic activity against Pseudomonas syringae, Xanthomonas campestris, M. oryzae and P. infestans. This is the first study assessing the anti-phytopathogenic activities of soudanones.
Collapse
Affiliation(s)
- Ernest Oppong-Danquah
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany; (E.O.-D.); (M.B.)
| | - Martina Blümel
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany; (E.O.-D.); (M.B.)
| | - Silvia Scarpato
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy; (S.S.); (A.M.)
| | - Alfonso Mangoni
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, via Domenico Montesano 49, 80131 Napoli, Italy; (S.S.); (A.M.)
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany; (E.O.-D.); (M.B.)
- Faculty of Mathematics and Natural Science, Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany
| |
Collapse
|
11
|
Borodina I, Kenny LC, McCarthy CM, Paramasivan K, Pretorius E, Roberts TJ, van der Hoek SA, Kell DB. The biology of ergothioneine, an antioxidant nutraceutical. Nutr Res Rev 2020; 33:190-217. [PMID: 32051057 PMCID: PMC7653990 DOI: 10.1017/s0954422419000301] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 11/20/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023]
Abstract
Ergothioneine (ERG) is an unusual thio-histidine betaine amino acid that has potent antioxidant activities. It is synthesised by a variety of microbes, especially fungi (including in mushroom fruiting bodies) and actinobacteria, but is not synthesised by plants and animals who acquire it via the soil and their diet, respectively. Animals have evolved a highly selective transporter for it, known as solute carrier family 22, member 4 (SLC22A4) in humans, signifying its importance, and ERG may even have the status of a vitamin. ERG accumulates differentially in various tissues, according to their expression of SLC22A4, favouring those such as erythrocytes that may be subject to oxidative stress. Mushroom or ERG consumption seems to provide significant prevention against oxidative stress in a large variety of systems. ERG seems to have strong cytoprotective status, and its concentration is lowered in a number of chronic inflammatory diseases. It has been passed as safe by regulatory agencies, and may have value as a nutraceutical and antioxidant more generally.
Collapse
Affiliation(s)
- Irina Borodina
- The Novo Nordisk Foundation Center for Biosustainability, Building 220, Chemitorvet 200, Technical University of Denmark, 2800Kongens Lyngby, Denmark
| | - Louise C. Kenny
- Department of Women’s and Children’s Health, Institute of Translational Medicine, University of Liverpool, Crown Street, LiverpoolL8 7SS, UK
| | - Cathal M. McCarthy
- Irish Centre for Fetal and Neonatal Translational Research (INFANT), Cork University Maternity Hospital, Cork, Republic of Ireland
- Department of Pharmacology and Therapeutics, Western Gateway Building, University College Cork, Cork, Republic of Ireland
| | - Kalaivani Paramasivan
- The Novo Nordisk Foundation Center for Biosustainability, Building 220, Chemitorvet 200, Technical University of Denmark, 2800Kongens Lyngby, Denmark
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1 Matieland, 7602, South Africa
| | - Timothy J. Roberts
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1 Matieland, 7602, South Africa
- Department of Biochemistry, Institute of Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Crown Street, LiverpoolL69 7ZB, UK
| | - Steven A. van der Hoek
- The Novo Nordisk Foundation Center for Biosustainability, Building 220, Chemitorvet 200, Technical University of Denmark, 2800Kongens Lyngby, Denmark
| | - Douglas B. Kell
- The Novo Nordisk Foundation Center for Biosustainability, Building 220, Chemitorvet 200, Technical University of Denmark, 2800Kongens Lyngby, Denmark
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1 Matieland, 7602, South Africa
- Department of Biochemistry, Institute of Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Crown Street, LiverpoolL69 7ZB, UK
| |
Collapse
|
12
|
Deng X, Yang Z, Chen R. Study of characteristics on metabolism of Penicillium chrysogenum F1 during bioleaching of heavy metals from contaminated soil. Can J Microbiol 2019; 65:629-641. [DOI: 10.1139/cjm-2018-0624] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Penicillium chrysogenum F1 is very efficient in bioleaching heavy metals from the soil and is used for that purpose. We found that F1 can extract 19.8 mg Cd, Cu, Pb, and Zn from 2.5 g soil; the total heavy metals’ bioleaching ratio was 60.4%. In this study, the bioleaching mechanism was investigated by means of metabonomics; different metabolite ions were screened (relative standard deviation >30%) and analyzed using clustering, univariate and multivariate analysis. Statistical analyses via Volcano Plot, principal component analysis, and partial least square discriminant analysis models revealed a difference between Ctrl 7 (the controls cultured and sampled on day 7) and Ctrl 15 (the controls cultured and sampled on day 15). Samp 15 (the samples cultured with heavy-metal-contaminated soil) was significantly different from Ctrl 7 and Ctrl 15. Analysis of the different ions demonstrated that the glucose catabolism pathways of glycolysis and the tricarboxylic acid (TCA) cycle were enhanced, and glucose anabolism through the pentose phosphate pathway was inhibited during bioleaching. At the same time, the metabolism of glutathione was also downregulated. Therefore, the catabolism of glucose was unaffected by the addition of heavy-metal-contaminated soil, and increasing glucose is beneficial to catabolism. The extraction of metals is mainly attributed to the metabolites of the TCA cycle.
Collapse
Affiliation(s)
- Xinhui Deng
- College of Life Science and Chemistry of Hunan University of Technology, Hunan Zhuzhou 412007, China
| | - Zhihui Yang
- College of Metallurgy and Environment of Central South University, Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Hunan Changsha 410083, China
| | - Runhua Chen
- College of Environmental Science and Engineering, Central South University of Forestry Science and Technology, Hunan Changsha 410007, China
| |
Collapse
|
13
|
Wang X, Hu Y, Gu Y, Zhao X, Chen X. Effects of relative humidity on the broadband extinction performance of bioaerosol. OPTICS EXPRESS 2019; 27:23801-23813. [PMID: 31510280 DOI: 10.1364/oe.27.023801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Bioaerosol, a significant constituent of the atmosphere, exhibits excellent broadband extinction performance and has attracted increasing attentions in the fields of atmospheric science, environmental science and electromagnetic field, et al. Relative humidity of the atmosphere has obvious diurnal and seasonal variation characteristics, and the frequent variation of relative humidity has a significant impact on bioaerosol in the atmosphere. However, the influence of relative humidity on broadband extinction performance of bioaerosol is unclear. Herein, we present the humidity growth model of bioaerosol. And the variation law of broadband extinction performance of bioaerosol in different humidity conditions was obtained by simulation. The simulation results and experimental data from an aerosol chamber experiment show that as the relative humidity values above 70%, the broadband extinction performance of bioaerosol will be increased with humidity. As the relative humidity increases from 70% to 90%, the extinction performance of AN0913 spores increase about 30% in visible and mid-infrared bands, about 20% in ultraviolet and far-infrared bands. And the extinction performance of AO0907 spores increase about 23% in the all four bands.
Collapse
|
14
|
Co-inoculum of Beauveria brongniartii and B. bassiana shows in vitro different metabolic behaviour in comparison to single inoculums. Sci Rep 2017; 7:13102. [PMID: 29026120 PMCID: PMC5638874 DOI: 10.1038/s41598-017-12700-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/13/2017] [Indexed: 12/11/2022] Open
Abstract
The use of entomopathogenic fungi for biocontrol of plant pests is recently receiving an increased interest due to the need of reducing the impact of agricultural practices on the environment. Biocontrol efficacy could be improved by co-inoculation of different microorganisms. However, interactions between the fungal species can trigger or depress the biocontrol activity. Co-inoculation of two entomopathogenic fungi (Beauveria bassiana and B. brongniartii) was performed in vitro to evaluate the effects of their joint behaviour on a range of different carbon sources in comparison to single inoculation. The two species showed a very different metabolic profile by Phenotype MicroArrayTM. B. bassiana showed a broader metabolism than B. brongniartii on a range of substrates. B. brongniartii showed a greater specificity in substrate utilization. Several carbon sources (L-Asparagine, L-Aspartic Acid, L- Glutamic Acid, m- Erythritol, D-Melezitose, D-Sorbitol) triggered the fungal metabolism in the co-inoculum. SSR markers and Real Time qPCR analysis showed that different substrates promoted either the growth of one or the other species, suggesting a form of interaction between the two fungi, related to their different ecological niches. The methodological approach that combines Phenotype MicroArrayTM and SSR genotyping appeared useful to assess the performance and potential competition of co-inoculated entomopathogenic fungi.
Collapse
|
15
|
Solyanikova IP, Suzina NE, Egozarian NS, Polivtseva VN, Prisyazhnaya NV, El-Registan GI, Mulyukin AL, Golovleva LA. The response of soil Arthrobacter agilis lush13 to changing conditions: Transition between vegetative and dormant state. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2017; 52:745-751. [PMID: 28976238 DOI: 10.1080/03601234.2017.1356665] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This work was aimed at studying the response of soil non-spore-forming actinobacterial strain Arthrobacter agilis Lush 13 to changing natural conditions, such as nutrient availability and the presence of degradable and recalcitrant aliphatic and aromatic substrates. The A. agilis strain Lush13 was able to degrade octane, nonane, hexadecane, benzoate, phenol, and 2,3-, 2,4-, 2,5-, 2,6-dichlorophenols, but not grew on 3,4-dichlorophenol, 2,3,4-, 2,4,5-, 2,4,6-trichlorophenol (TCP), pentachlorophenol (PCP), 2-chlorobenzoate, 3-chlorobenzoate, 3,5-dichlorobenzoate, 2,4-dichlorobenzoate. Under growth-arresting conditions due to nitrogen- or multiple starvation or recalcitrant (non-utilizable) carbon source, the studied strain preserved viability for prolonged periods (4-24 months) due to transition to dormancy in the form of conglomerated small and ultrasmall cyst-like dormant cells (CLC). Dormant cells were shown to germinate rapidly (30 min or later) after removal of starvation stress, and this process was followed by breakdown of conglomerates with the eliberation and further division of small multiple actively growing daughter cells. Results of this study shed some light to adaptive capabilities of soil arthrobacters in pure and polluted environments.
Collapse
Affiliation(s)
- Inna P Solyanikova
- a G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences , Pushchino, Moscow Region , Russia
| | - Nataliya E Suzina
- a G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences , Pushchino, Moscow Region , Russia
| | - Nataliya S Egozarian
- a G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences , Pushchino, Moscow Region , Russia
- b M.V. Lomonosov Moscow State University , Faculty of Biotechnology , Russia
| | - Valentina N Polivtseva
- a G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences , Pushchino, Moscow Region , Russia
| | - Nataliya V Prisyazhnaya
- a G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences , Pushchino, Moscow Region , Russia
| | - Galina I El-Registan
- c S.N. Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences , Moscow , Russia
| | - Andrey L Mulyukin
- c S.N. Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences , Moscow , Russia
| | - Ludmila A Golovleva
- a G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences , Pushchino, Moscow Region , Russia
| |
Collapse
|
16
|
Feng W, Wei Z, Song J, Qin Q, Yu K, Li G, Zhang J, Wu W, Yan Y. Hydrolysis of nicosulfuron under acidic environment caused by oxalate secretion of a novel Penicillium oxalicum strain YC-WM1. Sci Rep 2017; 7:647. [PMID: 28381881 PMCID: PMC5428040 DOI: 10.1038/s41598-017-00228-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 02/15/2017] [Indexed: 11/09/2022] Open
Abstract
A novel Penicillium oxalicum strain YC-WM1, isolated from activated sludge, was found to be capable of completely degrading 100 mg/L of nicosulfuron within six days when incubated in GSM at 33 °C. Nicosulfuron degradation rates were affected by GSM initial pH, nicosulfuron initial concentration, glucose initial concentration, and carbon source. After inoculation, the medium pH was decreased from 7.0 to 4.5 within one day and remained at around 3.5 during the next few days, in which nicosulfuron degraded quickly. Besides, 100 mg/L of nicosulfuron were completely degraded in GSM medium at pH of 3.5 without incubation after 4 days. So, nicosulfuron degradation by YC-WM1 may be acidolysis. Based on HPLC analysis, GSM medium acidification was due to oxalate accumulation instead of lactic acid and oxalate, which was influenced by different carbon sources and had no relationship to nicosulfuron initial concentration. Furthermore, nicosulfuron broke into aminopyrimidine and pyridylsulfonamide as final products and could not be used as nitrogen source and mycelium didn’t increase in GSM medium. Metabolomics results further showed that nicosulfuron degradation was not detected in intracellular. Therefore, oxalate secretion in GSM medium by strain YC-WM1 led to nicosulfuron acidolysis.
Collapse
Affiliation(s)
- Weimin Feng
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zheng Wei
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.,Insitute of Crop Science/Natonal Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agriculture Sciences, Beijing, 100081, China
| | - Jinlong Song
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.,Chinese Academy of fishery sciences, Beijing, 100141, China
| | - Qiao Qin
- Insitute of Crop Science/Natonal Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agriculture Sciences, Beijing, 100081, China
| | - Kaimin Yu
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Guochao Li
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiayu Zhang
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Wei Wu
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yanchun Yan
- Graduate School, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| |
Collapse
|
17
|
Wang J, Bradley CA, Stenzel O, Pedersen DK, Reuter-Carlson U, Chilvers MI. Baseline Sensitivity of Fusarium virguliforme to Fluopyram Fungicide. PLANT DISEASE 2017; 101:576-582. [PMID: 30677357 DOI: 10.1094/pdis-09-16-1250-re] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fluopyram, a succinate dehydrogenase inhibitor (SDHI) fungicide, was recently registered for use as a soybean seed treatment for management of sudden death syndrome (SDS) caused by Fusarium virguliforme. Although registered and now used commercially, in vitro baseline fungicide sensitivity of F. virguliforme to fluopyram has not yet been established. In this study, the baseline sensitivity of F. virguliforme to fluopyram was determined using in vitro growth of mycelium and germination of conidia assays with two collections of F. virguliforme isolates. A total of 130 and 75 F. virguliforme isolates were tested using the mycelial growth and conidia germination assays, respectively, including a core set of isolates that were tested with both assays. In the mycelial growth inhibition assay, 113 out of 130 isolates (86.9%) were inhibited 50% by effective concentrations (EC50) less than 5 µg/ml with a mean EC50 of 3.35 µg/ml. For the conidia germination assay, 73 out of 75 isolates (97%) were determined to have an estimated EC50 of less than 5 µg/ml with a mean EC50 value of 2.28 µg/ml. In a subset of 20 common isolates that were phenotyped with both assays, conidia germination of F. virguliforme was determined to be more sensitive to fluopyram (mean EC50 = 2.28 µg/ml) than mycelial growth (mean EC50 = 3.35 µg/ml). Hormetic effects were observed in the mycelial growth inhibition assay as 22% of the isolates demonstrated more growth on medium amended with the lowest fluopyram concentration (1 µg/ml), as compared with the nonfluopyram amended control. It was not possible to determine EC50 values for nine out of 185 isolates (4.8%), as those isolates were not inhibited by 50% even at the highest fluopyram concentrations of 100 µg/ml for mycelial growth and 20 µg/ml for conidia germination inhibition assays. On the whole, the F. virguliforme population appears to be sensitive to fluopyram, and this study enables future monitoring of fungicide sensitivity.
Collapse
Affiliation(s)
- Jie Wang
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing 48824
| | - Carl A Bradley
- Department of Crop Sciences, University of Illinois, Urbana 61801
| | - Olivia Stenzel
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing 48824
| | | | | | - Martin I Chilvers
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing 48824
| |
Collapse
|
18
|
Solyanikova IP, Suzina NE, Emelyanova EV, Polivtseva VN, Pshenichnikova AB, Lobanok AG, Golovleva LA. Morphological, physiological, and biochemical characteristics of a benzoate-degrading strain Rhodococcus opacus 1CP under stress conditions. Microbiology (Reading) 2017. [DOI: 10.1134/s0026261717020199] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
|