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Kalaba MH, El-Sherbiny GM, Darwesh OM, Moghannem SA. A statistical approach to enhance the productivity of Streptomyces baarensis MH-133 for bioactive compounds. Synth Syst Biotechnol 2024; 9:196-208. [PMID: 38385149 PMCID: PMC10876617 DOI: 10.1016/j.synbio.2024.01.012] [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: 11/21/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/23/2024] Open
Abstract
The goal of this study was to use statistical optimization to change the nutritional and environmental conditions so that Streptomyces baarensis MH-133 could make more active metabolites. Twelve trials were used to screen for critical variables influencing productivity using the Placket-Burman Design method. S. baarensis MH-133 is significantly influenced by elicitation, yeast extract, inoculum size, and incubation period in terms of antibacterial activity. A total of 27 experimental trials with various combinations of these factors were used to carry out the response surface technique using the Box-Behnken design. The analyses revealed that the model was highly significant (p < 0.001), with a lack-of-fit of 0.212 and a coefficient determination (R2) of 0.9224. Additionally, the model predicted that the response as inhibition zone diameter would reach a value of 27 mm. Under optimal conditions, S. baarensis MH-133 produced 18.0 g of crude extract to each 35L and was purified with column chromatography. The active fraction exhibiting antibacterial activity was characterized using spectroscopic analysis. The MIC and MBC values varied between 37.5 and 300 μg/ml and 75 and 300 μg/ml, respectively. In conclusion, the biostatistical optimization of the active fraction critical variables, including environmental and nutritional conditions, enhances the production of bioactive molecules by Streptomyces species.
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Affiliation(s)
- Mohamed H. Kalaba
- Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Gamal M. El-Sherbiny
- Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Osama M. Darwesh
- Agricultural Microbiology Department, National Research Centre, Dokki, Cairo, Egypt
| | - Saad A. Moghannem
- Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo 11884, Egypt
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Bataeva Y, Delegan Y, Bogun A, Shishkina L, Grigoryan L. Whole Genome Analysis and Assessment of the Metabolic Potential of Streptomyces carpaticus SCPM-O-B-9993, a Promising Phytostimulant and Antiviral Agent. BIOLOGY 2024; 13:388. [PMID: 38927268 PMCID: PMC11200584 DOI: 10.3390/biology13060388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024]
Abstract
This work aimed to study the genome organization and the metabolic potential of Streptomyces carpaticus strain SCPM-O-B-9993, a promising plant-protecting and plant-stimulating strain isolated from brown semi-desert soils with very high salinity. The strain genome contains a linear chromosome 5,968,715 bp long and has no plasmids. The genome contains 5331 coding sequences among which 2139 (40.1%) are functionally annotated. Biosynthetic gene clusters (BGCs) of secondary metabolites exhibiting antimicrobial properties (ohmyungsamycin, pellasoren, naringenin, and ansamycin) were identified in the genome. The most efficient period of SCPM-O-B-9993 strain cultivation was 72 h: during this period, the culture went from the exponential to the stationary growth phase as well as exhibited excellent phytostimulatory properties and antiviral activity against the cucumber mosaic virus in tomatoes under laboratory conditions. The Streptomyces carpaticus SCPM-OB-9993 strain is a biotechnologically promising producer of secondary metabolites exhibiting antiviral and phytostimulatory properties.
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Affiliation(s)
- Yulia Bataeva
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia;
| | - Yanina Delegan
- Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences” (FRC PSCBR RAS), 142290 Pushchino, Russia; (Y.D.); (A.B.)
| | - Alexander Bogun
- Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences” (FRC PSCBR RAS), 142290 Pushchino, Russia; (Y.D.); (A.B.)
| | - Lidiya Shishkina
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Russia;
| | - Lilit Grigoryan
- Department of Biology, Tatishchev Astrakhan State University, 414056 Astrakhan, Russia;
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Zhu L, Weng C, Shen X, Zhu X. Aptly chosen, effectively emphasizing the action and mechanism of antimycin A 1. Front Microbiol 2024; 15:1371850. [PMID: 38633707 PMCID: PMC11021728 DOI: 10.3389/fmicb.2024.1371850] [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: 01/17/2024] [Accepted: 02/26/2024] [Indexed: 04/19/2024] Open
Abstract
Rhizoctonia solani Kühn, a plant pathogenic fungus that can cause diseases in multiple plant species is considered one of the common and destructive pathogens in many crops. This study investigated the action of antimycin A1, which was isolated from Streptomyces AHF-20 found in the rhizosphere soil of an ancient banyan tree, on Rhizoctonia solani and its mechanism. The inhibitory effect of antimycin A1 on R. solani was assessed using the comparative growth rate method. The results revealed that antimycin A1 exhibited a 92.55% inhibition rate against R. solani at a concentration of 26.66 μg/mL, with an EC50 value of 1.25 μg/mL. To observe the impact of antimycin A1 on mycelial morphology and ultrastructure, the fungal mycelium was treated with 6.66 μg/mL antimycin A1, and scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed. SEM analysis demonstrated that antimycin A1 caused mycelial morphology to become stripped, rough, and folded. The mycelium experienced severe distortion and breakage, with incomplete or locally enlarged ends, shortened branches, and reduced numbers. TEM observation revealed thickened cell walls, indistinct organelle boundaries, swollen mitochondria, exosmotic substances in vesicles, slow vesicle fusion, and cavitation. Real-time quantitative PCR and enzyme activity assays were conducted to further investigate the impact of antimycin A1 on mitochondria. The physiological and biochemical results indicated that antimycin A1 inhibited complexes III and IV of the mitochondrial electron transport chain. RT-PCR analysis demonstrated that antimycin A1 controlled the synthesis of relevant enzymes by suppressing the transcription levels of ATP6, ATP8, COX3, QCR6, CytB, ND1, and ND3 genes in mitochondria. Additionally, a metabolomic analysis revealed that antimycin A1 significantly impacted 12 metabolic pathways. These pathways likely experienced alterations in their metabolite profiles due to the inhibitory effects of antimycin A1. Consequently, the findings of this research contribute to the potential development of novel fungicides.
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Affiliation(s)
- Linyan Zhu
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Chenhong Weng
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Xiaoman Shen
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Xiangdong Zhu
- College of Biological Science and Engineering, Jiangxi Agricultural University, Nanchang, Jiangxi, China
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Mansour T, Radwan WH, Mansour M, Gomaa M, Farouk F, Shepl M, Soliman AG, Abd-Elhalim BT, El-Senosy MMK, Bakry A, Ebeed NM, Alsenosy NK, Elhariry H, Galal A, El-Sayed SM, Adly E, Abu-Hussien SH. Larvicidal potential, toxicological assessment, and molecular docking studies of four Egyptian bacterial strains against Culex pipiens L. (Diptera: Culicidae). Sci Rep 2023; 13:17230. [PMID: 37821509 PMCID: PMC10567778 DOI: 10.1038/s41598-023-44279-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 10/05/2023] [Indexed: 10/13/2023] Open
Abstract
Mosquito control in Egypt depends on applying chemical synthetic pesticides that impact negatively on human health and the environment as well as the development of antibiotic and chemical resistance. This study aims to control the 3rd and 4th instars of Culex pipiens larvae using four bacterial strains. According to Phenotypic and molecular identification, the four isolates were identified as Bacillus subtilis MICUL D2023, Serratia marcescens MICUL A2023, Streptomyces albus LARVICID, and Pseudomonas fluorescens MICUL B2023. All strains were deposited in GenBank under accession numbers OQ764791, OQ729954, OQ726575, and OQ891356, respectively. Larvicidal activity of all microbial strain metabolites against a field strain of C. pipiens explored low LC50 results and reached its lowest values on the 3rd day with values of 6.40%, 38.4%, and 46.33% for P. fluorescens, S. albus, and S. marcescens, respectively. In addition, metabolites of P. fluorescence were more toxic than those of S. albus, followed by S. marcescens. B. subtilis shows no larvicidal effect on both field and lab mosquito strains. Microscopic alterations of 3rd and 4th instars showed toxic effects on different body parts (thorax, midgut, and anal gills), including losing external hairs, abdominal breakage, and larvae shrinkage, as well as different histological malformations in the digestive tract, midgut, and cortex. GC-MS analysis detected 51, 30, and 32 different active compounds from S. albus, S. marcescens, and P. fluorescens, respectively. GC detected 1, 2-BENZEA2:A52NEDICARBOXYLIC ACID, 2-Cyclohexene-1-carboxylic-acid-5-2-butenyl-methyl ester, and 3 octadecahydro2R3S4Z9Z-11R-12S from S. albus, S. marcesens, and P. fluorescens, respectively. Total protein, Total carbohydrate, and Acetylcholine esterase activity indicated significantly low levels on the 3rd day. All strain metabolites were safe against HSF cell lines. The docking results confirmed the role of the produced metabolites as larvicidal agents and Acetylcholine esterase inhibition. Such a problem need more studies on applying more and more natural pesticides.
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Affiliation(s)
- Tokaa Mansour
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Wafaa H Radwan
- Department of Agriculture Microbiology, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Menna Mansour
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Mohamed Gomaa
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Farouk Farouk
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Mohamed Shepl
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Ahmed G Soliman
- Undergraduate student, Biotechnology Program, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Basma T Abd-Elhalim
- Department of Agriculture Microbiology, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Mohamed M K El-Senosy
- Department of Plant Protection, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Ashraf Bakry
- Department of Genetics, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Naglaa M Ebeed
- Department of Genetics, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Neima K Alsenosy
- Department of Genetics, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Hesham Elhariry
- Department of Food Science, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Ahmed Galal
- Department of Poultry Production, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Salwa M El-Sayed
- Department of Agricultural Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt
| | - Eslam Adly
- Department of Entomology, Faculty of Science, Ain Shams University, Cairo, 15611, Egypt.
| | - Samah H Abu-Hussien
- Department of Agriculture Microbiology, Faculty of Agriculture, Ain Shams University, Cairo, 12411, Egypt.
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Alam K, Mazumder A, Sikdar S, Zhao YM, Hao J, Song C, Wang Y, Sarkar R, Islam S, Zhang Y, Li A. Streptomyces: The biofactory of secondary metabolites. Front Microbiol 2022; 13:968053. [PMID: 36246257 PMCID: PMC9558229 DOI: 10.3389/fmicb.2022.968053] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
Natural products derived from microorganisms serve as a vital resource of valuable pharmaceuticals and therapeutic agents. Streptomyces is the most ubiquitous bacterial genus in the environments with prolific capability to produce diverse and valuable natural products with significant biological activities in medicine, environments, food industries, and agronomy sectors. However, many natural products remain unexplored among Streptomyces. It is exigent to develop novel antibiotics, agrochemicals, anticancer medicines, etc., due to the fast growth in resistance to antibiotics, cancer chemotherapeutics, and pesticides. This review article focused the natural products secreted by Streptomyces and their function and importance in curing diseases and agriculture. Moreover, it discussed genomic-driven drug discovery strategies and also gave a future perspective for drug development from the Streptomyces.
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Affiliation(s)
- Khorshed Alam
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Arpita Mazumder
- Department of Microbiology, University of Chittagong, Chittagong, Bangladesh
| | - Suranjana Sikdar
- Department of Microbiology, University of Chittagong, Chittagong, Bangladesh
| | - Yi-Ming Zhao
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Jinfang Hao
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Chaoyi Song
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Yanyan Wang
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Rajib Sarkar
- Industrial Microbiology Research Division, BCSIR Chattogram Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Chattogram, Bangladesh
| | - Saiful Islam
- Industrial Microbiology Research Division, BCSIR Chattogram Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Chattogram, Bangladesh
- Saiful Islam,
| | - Youming Zhang
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
- Chinese Academy of Sciences (CAS) Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Youming Zhang,
| | - Aiying Li
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
- *Correspondence: Aiying Li,
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