1
|
Yu L, Li F, Ni J, Qin X, Lai J, Su X, Li Z, Zhang M. UV-ARTP compound mutagenesis breeding improves macrolactins production of Bacillus siamensis and reveals metabolism changes by proteomic. J Biotechnol 2024; 381:36-48. [PMID: 38190850 DOI: 10.1016/j.jbiotec.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 11/16/2023] [Accepted: 12/26/2023] [Indexed: 01/10/2024]
Abstract
Macrolactins are a type of compound with complex macrolide structure which mainly be obtained through microbiological fermentation now. They have excellent antifungal, antibacterial and antitumor activity. In order to improve macrolactins production, Bacillus siamensis YB304 was used as the research object, and a mutant Mut-K53 with stable genetic characters was selected by UV-ARTP compound mutagenesis. The yield of macrolactins was 156.46 mg/L, 3.95 times higher than original strain. The metabolic pathway changes and regulatory mechanism of macrolactins were analyzed by quantitative proteomics combined with parallel reaction monitoring. This study revealed that 1794 proteins were extracted from strain YB304 and strain Mut-K53, most of them were related to metabolism. After UV-ARTP compound mutagenesis treatment, the expression of 628 proteins were significantly changed, of which 299 proteins were significantly up-regulated. KEGG pathway analysis showed that differentially expression proteins mainly distributed in biological process, cellular component, and molecular function processing pathways. Such as utilization of carbon sources, glycolysis pathway, and amino acid metabolism pathway. Furthermore, key precursor substances such as acyl-CoA and amino acids of macrolactin biosynthesis are mostly up-regulated, which are one of the main reasons for increased production of macrolactin.This study will provide a new way to increase the yield of macrolactins through mutagenesis breeding and proteomics.
Collapse
Affiliation(s)
- Lian Yu
- Department of Food Science and Engineering, College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530004, China
| | - Fei Li
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China.
| | - Jie Ni
- Department of Chemistry and Chemical, Guilin Normal College, Guilin 541199, China.
| | - Xianling Qin
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Junxiang Lai
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Xinying Su
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Zhe Li
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Mengfei Zhang
- Department of Food Science and Engineering, College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530004, China
| |
Collapse
|
2
|
Gan Y, Bai M, Lin X, Liu K, Huang B, Jiang X, Liu Y, Gao C. Improvement of macrolactins production by the genetic adaptation of Bacillus siamensis A72 to saline stress via adaptive laboratory evolution. Microb Cell Fact 2022; 21:147. [PMID: 35854349 PMCID: PMC9294813 DOI: 10.1186/s12934-022-01871-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Macrolactins, a type of macrolide antibiotic, are toxic to the producer strains. As such, its level is usually maintained below the lethal concentration during the fermentation process. To improve the production of macrolactins, we applied adaptive laboratory evolution technology to engineer a saline-resistant mutant strain. The hypothesis that strains with saline resistance show improved macrolactins production was investigated. RESULTS Using saline stress as a selective pressure, we engineered a mutant strain with saline resistance coupled with enhanced macrolactins production within 60 days using a self-made device. As compared with the parental strain, the evolved strain produced macrolactins with 11.93% improvement in non-saline stress fermentation medium containing 50 g/L glucose, when the glucose concentration increased to 70 g/L, the evolved strain produced macrolactins with 71.04% improvement. RNA sequencing and metabolomics results revealed that amino acid metabolism was involved in the production of macrolactins in the evolved strain. Furthermore, genome sequencing of the evolved strain revealed a candidate mutation, hisDD41Y, that was causal for the improved MLNs production, it was 3.42 times higher than the control in the overexpression hisDD41Y strain. Results revealed that saline resistance protected the producer strain from feedback inhibition of end-product (macrolide antibiotic), resulting in enhanced MLNs production. CONCLUSIONS In the present work, we successfully engineered a mutant strain with enhanced macrolactins production by adaptive laboratory evolution using saline stress as a selective pressure. Based on physiological, transcriptomic and genetic analysis, amino acid metabolism was found to benefit macrolactins production improvement. Our strategy might be applicable to improve the production of other kinds of macrolide antibiotics and other toxic compounds. The identification of the hisD mutation will allow for the deduction of metabolic engineering strategies in future research.
Collapse
Affiliation(s)
- Yuman Gan
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China.
| | - Meng Bai
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Xiao Lin
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Kai Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Bingyao Huang
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Xiaodong Jiang
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China
| | - Yonghong Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China.
| | - Chenghai Gao
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Guangxi, 530001, People's Republic of China.
| |
Collapse
|
3
|
Vairagkar U, Mirza Y. Antagonistic Activity of Antimicrobial Metabolites Produced from Seaweed-Associated Bacillus amyloliquefaciens MTCC 10456 Against Malassezia spp. Probiotics Antimicrob Proteins 2021; 13:1228-1237. [PMID: 33523421 DOI: 10.1007/s12602-021-09742-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2021] [Indexed: 11/24/2022]
Abstract
Members of the genus Malassezia are known to be opportunistic pathogens responsible for causing skin disorders such as seborrheic dermatitis or dandruff, pityriasis versicolor, folliculitis, atopic dermatitis, and psoriasis. Due to the side effects caused by prolonged use of current topical antifungal agents, development of an alternative treatment is necessary. Fermentative production of antimicrobial metabolites from Bacillus amyloliquefaciens MTCC 10456 was carried out, and their antagonistic activity against Malassezia furfur and Malassezia globosa was evaluated. The antifungal metabolites were isolated by acid precipitation, and bioassay-guided simultaneous separation of the antimicrobial compounds was done by reversed-phase high-performance liquid chromatography (RP-HPLC). The fraction which demonstrated antifungal activity consisted of bacilysin, homologues of bacillomycin D, and members of the macrolactin family. The presence of bacilysin was detected using specific inhibitor assays and homologues of bacillomycin D, and macrolactins were identified using liquid chromatography/high-resolution electrospray ionization-mass spectrometry (LC/HRESI-MS/MS) analysis. Synergism among the identified compounds was observed which enhanced the antagonistic activity against Malassezia spp. To our knowledge, this is the first study to report the co-production and separation of members of macrolactin antibiotics, lipopeptides such as bacillomycin D and dipeptide antibiotic bacilysin, by any Bacillus strain from marine environment. Activity of individual compounds against Malassezia has been reported which may facilitate their application in the field of dermatology and in cosmetic products.
Collapse
Affiliation(s)
- Uttara Vairagkar
- Praj-Matrix - R&D Centre (Division of Praj Industries Limited) 402/403/1098, Urawade, Pirangut, Mulshi, Pune, 412115, Maharashtra, India.,Department of Technology, Savitribai Phule Pune University, Ganeshkhind, Pune, 411007, Maharashtra, India
| | - Yasmin Mirza
- Praj-Matrix - R&D Centre (Division of Praj Industries Limited) 402/403/1098, Urawade, Pirangut, Mulshi, Pune, 412115, Maharashtra, India.
| |
Collapse
|
4
|
Abstract
Marine microorganisms have proven to be a rich source of natural products with unique structures and novel activities, due to their special living conditions. Macrolactins (MLNs), mostly produced by marine-derived microorganisms, are a group of 24-membered lactone natural products, which exhibit potent antibacterial, antifungal, antiviral, anticancer, anti-inflammatory, anti-angiogenic and other activities. Their extensive biological activities make them potential compounds for drug development. MLNs are biosynthesized via a type I polyketide synthase (PKS) pathway with different tailoring steps, such as epoxidation, glycosylation and acylation. These modification steps provide opportunities to diversify their structures by combinatorial biosynthesis strategies. This review mainly focuses on the newly discovered MLNs in the past five years, including their biological activities and relevant biosynthetic studies.
Collapse
Affiliation(s)
- Ting Wu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Fei Xiao
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
| | - Wenli Li
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
| |
Collapse
|
5
|
Abstract
The resistance among various microbial species (infectious agents) to different antimicrobial drugs has emerged as a cause of serious public health problem all over the world. In this sense, natural products have been a rich source of compounds for drug discovery with antibiotic activity. Macrolactins are amazing structures which have antibiotic activity against some clinically relevant pathogens. In addition, they have anti-inflammatory, antifungal, antimicrobial, and antitumor activities. They are macrolides containing 24-membered lactone ring with some differences in their chemical structures. The synthesis of these compounds is a difficult task which has attracted attention of researchers; however few syntheses have been reported. In this review, the isolation of all reported macrolactins, their syntheses and biological activities are revisited.
Collapse
Affiliation(s)
- Aurelio Ortiz
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Pue, 72570, Mexico
| | - Estibaliz Sansinenea
- Facultad de Ciencias Quimicas, Benemerita Universidad Autonoma de Puebla, Pue, 72570, Mexico
| |
Collapse
|