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Wang R, Zhang Z, Yu X, Song Y, Shentu X. CdgB Regulates Morphological Differentiation and Toyocamycin Production in Streptomyces diastatochromogenes 1628. Int J Mol Sci 2024; 25:3878. [PMID: 38612686 PMCID: PMC11012013 DOI: 10.3390/ijms25073878] [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: 02/27/2024] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Bis (3',5')-cyclic diguanylic acid (c-di-GMP) is a ubiquitous second messenger that controls several metabolic pathways in bacteria. In Streptomyces, c-di-GMP is associated with morphological differentiation, which is related to secondary metabolite production. In this study, we identified and characterized a diguanylate cyclase (DGC), CdgB, from Streptomyces diastatochromogenes 1628, which may be involved in c-di-GMP synthesis, through genetic and biochemical analyses. To further investigate the role of CdgB, the cdgB-deleted mutant strain Δ-cdgB and the cdgB-overexpressing mutant strain O-cdgB were constructed by genetic engineering. A phenotypic analysis revealed that the O-cdgB colonies exhibited reduced mycelium formation, whereas the Δ-cdgB colonies displayed wrinkled surfaces and shriveled mycelia. Notably, O-cdgB demonstrated a significant increase in the toyocamycin (TM) yield by 47.3%, from 253 to 374 mg/L, within 10 days. This increase was accompanied by a 6.7% elevation in the intracellular concentration of c-di-GMP and a higher transcriptional level of the toy cluster within four days. Conversely, Δ-cdgB showed a lower c-di-GMP concentration (reduced by 6.2%) in vivo and a reduced toyocamycin production (decreased by 28.9%, from 253 to 180 mg/L) after 10 days. In addition, S. diastatochromogenes 1628 exhibited a slightly higher inhibitory effect against Fusarium oxysporum f. sp. cucumerinum and Rhizoctonia solani compared to Δ-cdgB, but a lower inhibition rate than that of O-cdgB. The results imply that CdgB provides a foundational function for metabolism and the activation of secondary metabolism in S. diastatochromogenes 1628.
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Affiliation(s)
- Rui Wang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China (X.Y.)
| | - Zixuan Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China (X.Y.)
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China (X.Y.)
| | - Yang Song
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China (X.Y.)
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xuping Shentu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China (X.Y.)
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Zhang Y, Zhang X, Wang M. Product-driven high-throughput screening of industrial filamentous actinomycetes. Trends Biotechnol 2023; 41:1109-1112. [PMID: 36863908 DOI: 10.1016/j.tibtech.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/05/2023] [Accepted: 02/14/2023] [Indexed: 03/04/2023]
Abstract
Traditional strain breeding of industrial filamentous actinomycetes has long been hampered by insufficient screening throughput. From microtiter plate based methods to droplet-based microfluidic screening, various novel product-driven high-throughput screening (HTS) methods have pushed the screening speed limit towards a minimum of hundreds of strains per second with single cell resolution.
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Affiliation(s)
- Yue Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
| | - Xuemei Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; Haihe Laboratory of Synthetic Biology, Tianjin 300308, China; School of Life Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Meng Wang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
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Pan X, Li Y, Yu S, Qi H, Liu Y, Wang X, Wang J, Zhang Y, Ma Z. Tetramycins C-E, three new tetraene macrolides from Streptomyces ahygroscopicus Z117. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Song Y, Zhang X, Zhang Z, Shentu X, Yu X. Physiology and Transcriptional Analysis of ppGpp-Related Regulatory Effects in Streptomyces diastatochromogenes 1628. Microbiol Spectr 2023; 11:e0120022. [PMID: 36475882 PMCID: PMC9927088 DOI: 10.1128/spectrum.01200-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
ppGpp is a ubiquitous small nucleotide messenger that mediates cellular self-protective responses under environmental stress. However, the mechanisms of ppGpp that control transcription and other metabolic processes depend on the species, and ppGpp regulates the same process via different mechanisms. The level of ppGpp is regulated by RelA/SpoT homolog (RSH) enzymes that synthesize and hydrolyze the alarmone. Here, we constructed a ppGpp0 strain and monitored the effects of ppGpp on the transcriptional level, physiology, and secondary metabiotic production in the antibiotic producer Streptomyces diastatochromogenes 1628. The results showed the cell division and growth of ppGpp0 increased by measurement of gene transcription and DCWs. The utilization of nitrogen was affected depending on the nitrogen type with a significantly higher DCW of the ppGpp0 mutant in the medium supplied with the yeast extract and a lower growth rate in the inorganic nitrogen ammonium salt. The ppGpp-mediated stringent response could not affect the usage of carbon resources. More importantly, ppGpp0 inhibited the expression of antibiotic clusters and the production of toyocamycin and tetramycin P. The antibiotic resistance was also significantly downregulated in the ppGpp0 mutant. In conclusion, this study showed detailed changes in ppGpp-mediated stringent responses on S. diastatochromogenes 1628 cell growth, nutrient utilization, morphological characteristics, antibiotic production, and resistance, which will provide insights into the role of ppGpp in Streptomyces. IMPORTANCE The ppGpp-mediated stringent response is widely distributed in Escherichia coli, Bacillus subtilis, Streptomyces, Staphylococcus aureus, etc. Stringent responses give strains the ability to resist environmental stresses, and survival from nutrition starvation, virulence, long-term persistence, biofilm formation, and gut colonization. ppGpp has many targets in cells and can reprogram DNA replication, transcription, ribosome biogenesis and function, and lipid metabolism. However, the mechanism of ppGpp to control transcription and other metabolic processes depends on the bacterial species and regulates the same process via a different mechanism. In Streptomyces, how ppGpp regulates the transcription remains to be elucidated. However, because ppGpp regulates many genes involved in primary and secondary metabolism, we compared the transcription and cell division, cell growth, morphological differentiation, antibiotic resistance, and secondary synthesis in the wild-type S. diastatochromogenes and ppGpp0 strains.
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Affiliation(s)
- Yang Song
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
| | - Xiangli Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
| | - Zixuan Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
| | - Xuping Shentu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
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Li C, Wang J, Lin H, Zhang Y, Ma Z, Bechthold A, Yu X. Protein X0P338, a GntR-type pleiotropic regulator for morphological differentiation and secondary metabolites production in Streptomyces diastatochromogenes 1628. J Basic Microbiol 2022; 62:788-800. [PMID: 35485240 DOI: 10.1002/jobm.202200086] [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: 02/12/2022] [Revised: 04/08/2022] [Accepted: 04/15/2022] [Indexed: 11/07/2022]
Abstract
The nucleoside antibiotic, toyocamycin (TM) exhibits excellent potent activity against several phytopathogenic fungi. Despite of its importance, little is known about key factors regulating TM biosynthesis and morphological differentiation in S. diastatochromogenes 1628. Based on proteomics data obtained from the analysis between wild-type (WT) S. diastatochromogenes 1628 strain and mutant strain 1628-T62 having a low-yield of TM, we observed that the differentially expressed protein, X0P338, which was proposed to be a regulator of the GntR-family, exhibited a higher expression level in S. diastatochromogenes 1628. Therefore, in this study, to explore whether protein X0P338 was involved in morphological differentiation and biosynthesis of secondary metabolites, especially TM, the gene called the gntR sd -encoding protein X0P338 was cloned and over-expressed in WT strain 1628 and mutant strain 1628-T62, respectively. The results indicated that the over-expression of gntR sd enhanced TM production in both strain 1628 (120.6 mg/L vs. 306.6 mg/L) and strain 1628-T62 (15.6 mg/L vs. 258.9 mg/L). Besides, the over-expression of gntR sd had positive and negative effects on morphological differentiation in strain 1628 and strain 1628-T62, respectively. The results also showed opposite effects on tetraene macrolide production during the over-expression of gntR sd in strain 1628 and strain 1628-T62. Moreover, transcription levels of genes involved in morphological differentiation and secondary metabolites production were affected by the over-expression of gntR sd gene, both in strain 1628 and strain 1628-T62. These results confirm that X0P338 as a GntR-type pleiotropic regulator that regulates the morphological differentiation and biosynthesis of secondary metabolites, and especially has a positive effect on TM biosynthesis. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Chouqiang Li
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Juan Wang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Hengyi Lin
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | - Yongyong Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang Province, 310018, China
| | | | - Andreas Bechthold
- University of Freiburg, Institute for Pharmaceutical Sciences, Pharmaceutical Biology and Biotechnology, Freiburg, Germany
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Belakhov VV. Ecological Aspects of Application of Tetraene Macrolide Antibiotic Tetramycin in Agriculture and Food Industry (A Review). RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363221130156] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hu Y, Wang J, Xu J, Ma Z, Bechthold A, Yu X. Effects of S-adenosylmethionine on production of secondary metabolites in Streptomycesdiastatochromogenes 1628. J Zhejiang Univ Sci B 2021; 22:767-773. [PMID: 34514756 DOI: 10.1631/jzus.b2100115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Streptomyces are famous for their ability to synthesize a large number of bioactive compounds as secondary metabolites containing antibiotics, enzyme inhibitors, and other small molecules with potential physiological activity (Niu et al., 2016; Song et al., 2019; Yin et al., 2019). Secondary metabolites are produced by a multi-step reaction of a primary metabolite as a precursor (Liu et al., 2013; Li et al., 2021). Therefore, it is of great research significance to increase the overall synthesis level of antibiotics by increasing the amount of synthesis of precursors.
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Affiliation(s)
- Yefeng Hu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Juan Wang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Jie Xu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Zheng Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China.
| | - Andreas Bechthold
- Institute for Pharmaceutical Sciences, Pharmaceutical Biology and Biotechnology, University of Freiburg, 79104 Freiburg, Germany
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou 310018, China
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Song Y, Shi J, Xiong Z, Shentu X, Yu X. Three antimicrobials alter gut microbial communities and causing different mortality of brown planthopper, Nilaparvata lugens Stål. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 174:104806. [PMID: 33838707 DOI: 10.1016/j.pestbp.2021.104806] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/15/2021] [Accepted: 02/20/2021] [Indexed: 06/12/2023]
Abstract
The symbionts in the gut of brown planthopper play an important role in the nutrition utilization and growth of their host, Nilaparvata lugens Stål (Hemiptera: Delphacidae). Controlling the BPH infection on rice by inhibiting the symbionts using antimicrobials is feasible. However, the impact of antimicrobials on the microbiome in the gut has not been fully elucidated. In this study, we found the mortality reached 35.5%, 33.1% and 19.4%, when BPHs were exposed to toyocamycin, tebuconazole, and zhongshengmycin, respectively. Significant differences were found between the structures of gut microbial communities in adult BPHs treated with different antimicrobials and water. The antimicrobials reduced the fungal diversity by reducing the non-dominant fungi abundance, and increased bacterial diversity by inhibiting the dominant bacteria Acinetobacter in the gut. The diversification of taxonomic groups in gut depended on the different selective stress of antimicrobials. For the microbial absolute abundance, the total microbial gut community abundance decreased under antimicrobial exposure, but the absolute abundance of Serratia significantly increased in the antimicrobial treatment group. Overall, our study enriched the knowledge of microbiomes in the gut of BPH under the antimicrobial treatment and provided guidelines to enhance the pest management effect of BPH by using antimicrobials.
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Affiliation(s)
- Yang Song
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China
| | - Jiateng Shi
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China
| | - Zhenze Xiong
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China
| | - Xuping Shentu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China.
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Science, China Jiliang University, Hangzhou 310018, China.
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Shi J, Song Y, Shentu X, Yu X. Antimicrobials Affect the Fat Body Microbiome and Increase the Brown Planthopper Mortality. Front Physiol 2021; 12:644897. [PMID: 33790805 PMCID: PMC8005595 DOI: 10.3389/fphys.2021.644897] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/01/2021] [Indexed: 12/19/2022] Open
Abstract
Symbionts in the abdomen fat body of brown planthopper (BPH) play an important role in the growth and reproduction of their host, Nilaparvata lugens Stål (Hemiptera: Delphacidae). Thus, controlling BPH infection on rice by inhibiting symbionts with antimicrobials is feasible. However, the effect of antimicrobials on the microbiome in the fat body and the relationship between microbial community and mortality have not been fully elucidated. A decrease in the total number of yeast-like symbiotes in the fat body and elevated mortality were observed after exposure to toyocamycin, tebuconazole, and zhongshengmycin. Additionally, we found that the antimicrobials reduced bacterial diversity and increased fungal diversity in the fat body and altered the bacterial and fungal community structure. Although the total absolute abundance of bacteria and fungi decreased after antimicrobial exposure, the absolute abundance of Serratia increased, indicating that Serratia, which was the most dominant in the fat body, is an important symbiont involved in resistance to antimicrobials. After antimicrobial exposure, seven genera, which probably participated in the nutrition and development function of the host, were totally eliminated from the fat body. Overall, our study enriches the knowledge of microbiomes in the fat body of BPH under antimicrobial treatment and the disturbance of symbionts would be further used to help other pesticides to control pests.
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Affiliation(s)
- Jiateng Shi
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
| | - Yang Song
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
| | - Xuping Shentu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Science, China Jiliang University, Hangzhou, China
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