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Zhao S, Yin R, Zhang M, Zhai Z, Shen Z, Mou Y, Xu D, Zhou L, Lai D. Efficient gene editing in the slow-growing, non-sporulating, melanized, endophytic fungus Berkleasmium sp. Dzf12 using a CRISPR/Cas9 system. World J Microbiol Biotechnol 2024; 40:176. [PMID: 38652405 DOI: 10.1007/s11274-024-03988-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: 02/08/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
The endophytic fungus Berkleasmium sp. Dzf12 that was isolated from Dioscorea zingiberensis, is a proficient producer of palmarumycins, which are intriguing polyketides of the spirobisnaphthalene class. These compounds displayed a wide range of bioactivities, including antibacterial, antifungal, and cytotoxic activities. However, conventional genetic manipulation of Berkleasmium sp. Dzf12 is difficult and inefficient, partially due to the slow-growing, non-sporulating, and highly pigmented behavior of this fungus. Herein, we developed a CRISPR/Cas9 system suitable for gene editing in Berkleasmium sp. Dzf12. The protoplast preparation was optimized, and the expression of Cas9 in Berkleasmium sp. Dzf12 was validated. To assess the gene disruption efficiency, a putative 1, 3, 6, 8-tetrahydroxynaphthalene synthase encoding gene, bdpks, involved in 1,8-dihydroxynaphthalene (DHN)-melanin biosynthesis, was selected as the target for gene disruption. Various endogenous sgRNA promoters were tested, and different strategies to express sgRNA were compared, resulting in the construction of an optimal system using the U6 snRNA-1 promoter as the sgRNA promoter. Successful disruption of bdpks led to a complete abolishment of the production of spirobisnaphthalenes and melanin. This work establishes a useful gene targeting disruption system for exploration of gene functions in Berkleasmium sp. Dzf12, and also provides an example for developing an efficient CRISPR/Cas9 system to the fungi that are difficult to manipulate using conventional genetic tools.
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Affiliation(s)
- Siji Zhao
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Ruya Yin
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Mengwei Zhang
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Ziqi Zhai
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Zhen Shen
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Yan Mou
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Dan Xu
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Ligang Zhou
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China
| | - Daowan Lai
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, No. 2 Yuanmingyuan West Road, Haidian district, Beijing, 100193, China.
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Abdullah Thaidi NI, Mohamad R, Wasoh H, Kapri MR, Ghazali AB, Tan JS, Rios-Solis L, Halim M. Development of In Situ Product Recovery (ISPR) System Using Amberlite IRA67 for Enhanced Biosynthesis of Hyaluronic Acid by Streptococcus zooepidemicus. Life (Basel) 2023; 13:life13020558. [PMID: 36836914 PMCID: PMC9966800 DOI: 10.3390/life13020558] [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: 11/29/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 02/18/2023] Open
Abstract
High broth viscosity due to the accumulation of hyaluronic acid (HA) causes a limited yield of HA. It is a major problem of HA production using Streptococcus zooepidemicus. Extractive fermentation via in situ product recovery (ISPR) was utilized to enhance the HA production. Resins from Amberlite: IRA400 Cl; IRA900 Cl; IRA410 Cl; IRA402 Cl; and IRA67 were tested for the HA adsorption. IRA67 showed high adsorption capacity on HA. The study of the adsorption via a 2 L stirred tank bioreactor of S. zooepidemicus fermentation was investigated to elucidate the adsorption of HA onto IRA67 in dispersed and integrated internal column systems. The application of a dispersed IRA67 improved the HA production compared to the fermentation without resin addition by 1.37-fold. The HA production was further improved by 1.36-fold with an internal column (3.928 g/L) over that obtained with dispersed IRA67. The cultivation with an internal column shows the highest reduction of viscosity value after the addition of IRA67 resin: from 58.8 to 23.7 (mPa·s), suggesting the most effective ISPR of HA. The improved biosynthesis of HA indicated that an extractive fermentation by ISPR adsorption is effective and may streamline the HA purification.
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Affiliation(s)
- Nur Imanina Abdullah Thaidi
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Malaysia
- Bioprocessing and Biomanufacturing Research Complex, Universiti Putra Malaysia, 43400 Serdang, Malaysia
| | - Rosfarizan Mohamad
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Malaysia
- Bioprocessing and Biomanufacturing Research Complex, Universiti Putra Malaysia, 43400 Serdang, Malaysia
| | - Helmi Wasoh
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Malaysia
- Bioprocessing and Biomanufacturing Research Complex, Universiti Putra Malaysia, 43400 Serdang, Malaysia
| | - Mohammad Rizal Kapri
- Bioprocessing and Biomanufacturing Research Complex, Universiti Putra Malaysia, 43400 Serdang, Malaysia
| | - Ahmad Badruddin Ghazali
- Department of Oral Maxillofacial Surgery and Oral Diagnosis, Kulliyyah of Dentistry, International Islamic University Malaysia, 25200 Kuantan, Malaysia
| | - Joo Shun Tan
- Bioprocessing and Biomanufacturing Research Complex, Universiti Putra Malaysia, 43400 Serdang, Malaysia
- School of Industrial Technology, Universiti Sains Malaysia, 11800 Gelugor, Malaysia
| | - Leonardo Rios-Solis
- School of Natural and Environmental Sciences, Molecular Biology and Biotechnology Group, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
- School of Engineering, Institute for Bioengineering, University of Edinburgh, Edinburgh EH9 3JL, UK
| | - Murni Halim
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Malaysia
- Bioprocessing and Biomanufacturing Research Complex, Universiti Putra Malaysia, 43400 Serdang, Malaysia
- Correspondence:
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Wang D, Zhang J, Cao DD, Wang X, Wei D. Identification and in situ removal of an inhibitory intermediate to develop an efficient phytosterol bioconversion process using a cyclodextrin-resting cell system. RSC Adv 2021; 11:24787-24793. [PMID: 35481053 PMCID: PMC9037027 DOI: 10.1039/d1ra02774c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/30/2021] [Indexed: 11/23/2022] Open
Abstract
A classically versatile steroid intermediate, 9α-hydroxyandrost-4-ene-3,17-dione (9α-OH-AD), can be obtained by phytosterol (PS) bioconversion using Mycobacterium. In this study, a cyclodextrin-resting cell reaction system with a high concentration of PS (50 g L−1) was used to produce 9α-OH-AD. However, the inhibitory effect of metabolic intermediates is a key factor limiting production efficiency. After the separation and identification of a series of metabolic intermediates, it was found that 4-ene-3-keto steroids, which are the first metabolites of sterol side-chain degradation, accumulated at the beginning of the bioprocess and had a remarkable inhibitory effect on bioconversion. The bioconversion rate was greatly improved when 5 g L−1 of macroporous adsorbent resin D101 was added to the reaction system in the initial phase. A certain amount of resin acted as a reservoir to remove the inhibitory intermediate in situ and facilitated the bioconversion process, and the 9α-OH-AD space–time yield increased to 8.51 g L−1 d−1, which was 23.15% higher than that without resin addition (6.91 g L−1 d−1) after 72 h bioconversion. In summary, we identified an inhibitory intermediate that limits the bioconversion rate and provided a solution based on resin adsorption for improving 9α-OH-AD production efficiency in a commercial-scale process. We identified an inhibitory intermediate, 4-ene-3-keto steroids, that limits the bioconversion rate and provided a solution based on resin adsorption for improving 9α-OH-AD production efficiency in a commercial-scale process.![]()
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Affiliation(s)
- Da Wang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology Shanghai 200237 China +86-21-64250068 +86-21-64253715
| | - Jian Zhang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology Shanghai 200237 China +86-21-64250068 +86-21-64253715
| | - Dan-Dan Cao
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology Shanghai 200237 China +86-21-64250068 +86-21-64253715
| | - Xuedong Wang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology Shanghai 200237 China +86-21-64250068 +86-21-64253715
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology Shanghai 200237 China +86-21-64250068 +86-21-64253715
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Xu F, Wang S, Li Y, Zheng M, Xi X, Cao H, Cui X, Guo H, Han C. Yield enhancement strategies of rare pharmaceutical metabolites from endophytes. Biotechnol Lett 2018; 40:797-807. [PMID: 29605937 DOI: 10.1007/s10529-018-2531-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/28/2018] [Indexed: 11/25/2022]
Abstract
Endophytes are barely untapped as vital sources in the medicine. They are microorganisms which mostly exist in plants. As they are exploited, it is accepted that endophytes can produce active metabolites that possess same function as their hosts such as taxol, podophyllotoxin, hypericin, and azadirachtin. These metabolites have been promising potential usefulness in safety and human health concerns. We are supposed to adopt measures to raise production for the low yield of metabolites. This paper summarizes the latest advances in various bioprocess optimization strategies. These techniques can overcome the limitations associated with rare pharmaceutical metabolite-producing endophytic fungi. These strategies include strain improvement, genome shuffling, medium optimization, fermentation conditions optimization, addition of specific factor, addition of solid sorbent, and co-culturing. It will enable endophytes to produce high and sustainable production of rare pharmaceutical metabolites.
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Affiliation(s)
- Fangxue Xu
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Shiyuan Wang
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Yujuan Li
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Mengmeng Zheng
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Xiaozhi Xi
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Hui Cao
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Xiaowei Cui
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Hong Guo
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Chunchao Han
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China.
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Li H, Jiao X, Zhou W, Sun Y, Liu W, Lin W, Liu A, Song A, Zhu H. Enhanced production of total flavones from Inonotus baumii by multiple strategies. Prep Biochem Biotechnol 2018; 48:103-112. [PMID: 28857662 DOI: 10.1080/10826068.2017.1365248] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
As one kind of important secondary metabolites produced by Inonotus baumii, flavones can be applied in food, medicine, and other industries due to their biological activities such as antioxidant, anticancer, and antibacterial activity. To enhance total flavone production in submerged fermentation of I. baumii, three different strategies, optimization of fermentation parameters by statistical designs including Plackett-Burman design and response surface methodology, addition of precursors and elicitors, and two-phase culture, were used. The production of total flavones (PTF) reached 1532.83 mg/L when the optimized medium was used. All precursors and elicitors can increase the PTF. The maximum PTF (2184.06 mg/L, up to 1.57-fold) was obtained with the addition of both AgNO3 and glutathione in fermentation media. Interestingly, when 0.5% (w/v) DM130 macroporous resin as adsorbent was added to fermentation broth on day 4 of culture, the highest production reached 2407.79 mg/L with this two-phase culture strategy. These methods can be further applied to large-scale industrial production and broaden the application of flavones.
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Key Words
- ANOVA, analysis of variance
- CCD design, central composite design
- CSL, corn steep liquor
- DMW, dry mycelial weight
- GSH, glutathione
- Inonotus baumii
- PAL, phenylalanine ammonia-lyase.
- PB design, Plackett–Burman design
- PTF, production of total flavones
- RSM, response surface methodology
- VB1, vitamin B1
- YE, yeast extract
- precursors and elicitors
- response surface methodology
- total flavone production
- two-phase culture
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Affiliation(s)
- Hui Li
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China
| | - Xue Jiao
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China
| | - Wanlong Zhou
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China
| | - Yajie Sun
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China
| | - Wei Liu
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China
| | - Weiping Lin
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China
| | - Ao Liu
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China
| | - Aihuan Song
- b Scientific Research Department, Marine Biology Institute of Shandong Province , Qingdao , People's Republic of China
| | - Hu Zhu
- a Centre for Bioengineering and Biotechnology , China University of Petroleum (East China) , Qingdao , People's Republic of China.,c College of Chemistry and Materials , Fujian Normal University , Fuzhou , People's Republic of China
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Mou Y, Xu D, Mao Z, Dong X, Lin F, Wang A, Lai D, Zhou L, Xie B. Enhancement of Palmarumycin C12 and C13 Production by the Endophytic Fungus Berkleasmium sp. Dzf12 in an Aqueous-Organic Solvent System. Molecules 2015; 20:20320-33. [PMID: 26569213 PMCID: PMC6331930 DOI: 10.3390/molecules201119700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 12/30/2022] Open
Abstract
The endophytic fungus Berkleasmium sp. Dzf12, isolated from Dioscorea zingiberensis, was found to produce palmarumycins C12 and C13 which possess a great variety of biological activities. Seven biocompatible water-immiscible organic solvents including n-dodecane, n-hexadecane, 1-hexadecene, liquid paraffin, dibutyl phthalate, butyl oleate and oleic acid were evaluated to improve palmarumycins C12 and C13 production in suspension culture of Berkleasmium sp. Dzf12. Among the chosen solvents both butyl oleate and liquid paraffin were the most effective to improve palmarumycins C12 and C13 production. The addition of dibutyl phthalate, butyl oleate and oleic acid to the cultures of Berkleasmium sp. Dzf12 significantly enhanced palmarumycin C12 production by adsorbing palmarumycin C12 into the organic phase. When butyl oleate was fed at 5% (v/v) in medium at the beginning of fermentation (day 0), the highest palmarumycin C12 yield (191.6 mg/L) was achieved, about a 34.87-fold increase in comparison with the control (5.3 mg/L). n-Dodecane, 1-hexadecene and liquid paraffin had a great influence on the production of palmarumycin C13. When liquid paraffin was added at 10% (v/v) in medium on day 3 of fermentation, the palmarumycin C13 yield reached a maximum value (134.1 mg/L), which was 4.35-fold that of the control (30.8 mg/L). Application of the aqueous-organic solvent system should be a simple and efficient process strategy for enhancing palmarumycin C12 and C13 production in liquid cultures of the endophytic fungus Berkleasmium sp. Dzf12.
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Affiliation(s)
- Yan Mou
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Dan Xu
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Ziling Mao
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Xuejiao Dong
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Fengke Lin
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Ali Wang
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Daowan Lai
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Bingyan Xie
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Venugopalan A, Srivastava S. Endophytes as in vitro production platforms of high value plant secondary metabolites. Biotechnol Adv 2015. [PMID: 26225453 DOI: 10.1016/j.biotechadv.2015.07.004] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Many reports have been published on bioprospecting of endophytic fungi capable of producing high value bioactive molecules like, paclitaxel, vincristine, vinblastine, camptothecin and podophyllotoxin. However, commercial exploitation of endophytes for high value-low volume plant secondary metabolites remains elusive due to widely reported genomic instability of endophytes in the axenic culture. While most of the endophyte research focuses on screening endophytes for novel or existing high value biomolecules, very few reports seek to explore the possible mechanisms of production of host-plant associated or novel secondary metabolites in these organisms. With an overview of host-endophyte relationship and its possible impact on the secondary metabolite production potential of endophytes, the review highlights the evidence reported for and against the presence of host-independent biosynthetic machinery in endophytes. The review aims to address the question, why should and how can endophytes be exploited for large scale in vitro production of high value phytochemicals? In this regard, various bioprocess optimization strategies that have been applied to sustain and enhance the product yield from the endophytes have also been described in detail. Further, techniques like mixed fermentation/co-cultivation and use of epigenetic modifiers have also been discussed as potential strategies to activate cryptic gene clusters in endophytes, thereby aiding in novel metabolite discovery and overcoming the limitations associated with axenic culture of endophytes.
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Affiliation(s)
- Aarthi Venugopalan
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Smita Srivastava
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600 036, India.
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Luo H, Liu H, Cao Y, Xu D, Mao Z, Mou Y, Meng J, Lai D, Liu Y, Zhou L. Enhanced production of botrallin and TMC-264 with in situ macroporous resin adsorption in mycelial liquid culture of the endophytic fungus Hyalodendriella sp. Ponipodef12. Molecules 2014; 19:14221-34. [PMID: 25211003 PMCID: PMC6271592 DOI: 10.3390/molecules190914221] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/01/2014] [Accepted: 09/03/2014] [Indexed: 01/16/2023] Open
Abstract
Hyalodendriella sp. Ponipodef12, an endophytic fungus from the hybrid "Neva" of Populus deltoides × P. nigra, is a high producer of the bioactive dibenzo-α-pyrones botrallin and TMC-264. However, both the botrallin and TMC-264 produced by Hyalodendriella sp. Ponipodef12 were retained as both intracellular and extracellular products. The aim of this study was to evaluate an in situ macroporous resin adsorption for enhancement of botrallin and TMC-264 production in mycelial liquid culture of Hyalodendriella sp. Ponipodef12. Production of botrallin and TMC-264 was most effectively enhanced by macroporous resin DM-301 among the thirteen nonionic macroporous resins tested. The highest botrallin yield (51.47 mg/L, which was 2.29-fold higher than the control at 22.49 mg/L) was obtained by adding resin DM-301 at 4.38% (g/mL) to the culture broth on day 24 and allowing a period of 4 days for adsorption. The highest TMC-264 yield reached 47.74 mg/L, which was 11.76-fold higher than that of the control (4.06 mg/L), and was achieved by adding DM-301 resin at 4.38% (w/v) in the culture broth on day 24 and allowing a period of 6 days for adsorption. The results show that in situ resin adsorption is an effective strategy for enhancing production of botrallin and TMC-264, and also for facilitating their recovery from mycelial liquid culture of Hyalodendriella sp. Ponipodef12.
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Affiliation(s)
- Haiyu Luo
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Hongwei Liu
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Yuheng Cao
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Dan Xu
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Ziling Mao
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Yan Mou
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Jiajia Meng
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Daowan Lai
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Yang Liu
- Institute of Agro-products Processing Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Ligang Zhou
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
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Antimicrobial and antioxidant activities and effect of 1-hexadecene addition on palmarumycin C2 and C3 yields in liquid culture of endophytic fungus Berkleasmium sp. Dzf12. Molecules 2013; 18:15587-99. [PMID: 24352015 PMCID: PMC6270283 DOI: 10.3390/molecules181215587] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/03/2013] [Accepted: 12/09/2013] [Indexed: 11/21/2022] Open
Abstract
Two spirobisnaphthalenes, namely palmarumycins C2 and C3, were isolated from cultures of the endophytic fungus Berkleasmium sp. Dzf12 after treatment with 1-hexadecene. After addition of 1-hexadecene at 10% to the medium on day 6 of culture, the maximal yields of palmarumycins C2 and C3 were obtained as 0.40 g/L and 1.19 g/L, which were 40.00 fold and 59.50 fold higher, respectively, in comparison with those of the control (0.01 g/L and 0.02 g/L). The results indicated that addition of 1-hexadecene can be an effective strategy for enhancing the production of palmarumycins C2 and C3 in liquid culture of endophytic fungus Berkleasmium sp. Dzf12. Palmarumycin C3 exhibited stronger antimicrobial and antioxidant activities than palmarumycin C2.
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Shan T, Lu S, Luo C, Luo R, Mou Y, Wang M, Peng Y, Zhou L. Preparative separation of spirobisnaphthalenes from endophytic fungus Berkleasmium sp. Dzf12 by high-speed counter-current chromatography. Molecules 2013; 18:12896-908. [PMID: 24135943 PMCID: PMC6270015 DOI: 10.3390/molecules181012896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 09/29/2013] [Accepted: 10/12/2013] [Indexed: 11/16/2022] Open
Abstract
High-speed counter-current chromatography (HSCCC) was applied for the first time for the preparative separation of spirobisnaphthalenes from a crude extract of the endophytic fungus Berkleasmium sp. Dzf12, associated with the medicinal plant Dioscorea zingiberensis. Six spirobisnaphthalenes were successfully separated by HSCCC with a two-phase solvent system composed of n-hexane-chloroform-methanol-water (1.5:3.0:2.5:2.0, v/v). About 18.0 mg of diepoxin κ (1), 245.7 mg of palmarumycin C13 (2), 42.4 mg of palmarumycin C16 (3), 42.2 mg of palmarumycin C15 (4), 32.6 mg of diepoxin δ (5), and 22.3 mg of diepoxin γ (6) with purities of 56.82, 71.39, 76.57, 75.86, 91.01 and 82.48%, respectively, as determined by high-performance liquid chromatography (HPLC), were obtained from 500 mg of the crude extract in a one-step elution within 7 h of separation procedure by HSCCC. The purified spirobisnaphthalenes were further structurally characterized by means of physicochemical and spectrometric analysis.
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Affiliation(s)
- Tijiang Shan
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
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11
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Enhancement of Palmarumycins C(12) and C(13) production in liquid culture of endophytic fungus Berkleasmium sp. Dzf12 after treatments with metal ions. Int J Mol Sci 2013; 14:979-98. [PMID: 23296274 PMCID: PMC3565302 DOI: 10.3390/ijms14010979] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 12/15/2012] [Accepted: 12/25/2012] [Indexed: 01/07/2023] Open
Abstract
The influences of eight metal ions (i.e., Na+, Ca2+, Ag+, Co2+, Cu2+, Al3+, Zn2+, and Mn4+) on mycelia growth and palmarumycins C12 and C13 production in liquid culture of the endophytic fungus Berkleasmium sp. Dzf12 were investigated. Three metal ions, Ca2+, Cu2+ and Al3+ were exhibited as the most effective to enhance mycelia growth and palmarumycin production. When calcium ion (Ca2+) was applied to the medium at 10.0 mmol/L on day 3, copper ion (Cu2+) to the medium at 1.0 mmol/L on day 3, aluminum ion (Al3+) to the medium at 2.0 mmol/L on day 6, the maximal yields of palmarumycins C12 plus C13 were obtained as 137.57 mg/L, 146.28 mg/L and 156.77 mg/L, which were 3.94-fold, 4.19-fold and 4.49-fold in comparison with that (34.91 mg/L) of the control, respectively. Al3+ favored palmarumycin C12 production when its concentration was higher than 4 mmol/L. Ca2+ had an improving effect on mycelia growth of Berkleasmium sp. Dzf12. The combination effects of Ca2+, Cu2+ and Al3+ on palmarumycin C13 production were further studied by employing a statistical method based on the central composite design (CCD) and response surface methodology (RSM). By solving the quadratic regression equation between palmarumycin C13 and three metal ions, the optimal concentrations of Ca2+, Cu2+ and Al3+ in medium for palmarumycin C13 production were determined as 7.58, 1.36 and 2.05 mmol/L, respectively. Under the optimum conditions, the predicted maximum palmarumycin C13 yield reached 208.49 mg/L. By optimizing the combination of Ca2+, Cu2+ and Al3+ in medium, palmarumycin C13 yield was increased to 203.85 mg/L, which was 6.00-fold in comparison with that (33.98 mg/L) in the original basal medium. The results indicate that appropriate metal ions (i.e., Ca2+, Cu2+ and Al3+) could enhance palmarumycin production. Application of the metal ions should be an effective strategy for palmarumycin production in liquid culture of the endophytic fungus Berkleasmium sp. Dzf12.
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12
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Li P, Xu L, Mou Y, Shan T, Mao Z, Lu S, Peng Y, Zhou L. Medium optimization for exopolysaccharide production in liquid culture of endophytic fungus Berkleasmium sp. Dzf12. Int J Mol Sci 2012; 13:11411-11426. [PMID: 23109862 PMCID: PMC3472754 DOI: 10.3390/ijms130911411] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 08/24/2012] [Accepted: 08/27/2012] [Indexed: 11/30/2022] Open
Abstract
Berkleasmium sp. Dzf12, an endophytic fungus from Dioscorea zingiberensis, is a high producer of spirobisnaphthalenes with various bioactivities. The exopolysaccharide (EPS) produced by this fungus also shows excellent antioxidant activity. In this study, the experimental designs based on statistics were employed to evaluate and optimize the medium for EPS production in liquid culture of Berkleasmium sp. Dzf12. For increasing EPS yield, the concentrations of glucose, peptone, KH(2)PO(4), MgSO(4)·7H(2)O and FeSO(4)·7H(2)O in medium were optimized using response surface methodology (RSM). Both the fractional factorial design (FFD) and central composite design (CCD) were applied to optimize the main factors which significantly affected EPS production. The concentrations of glucose, peptone and MgSO(4)·7H(2)O were found to be the main effective factors for EPS production by FFD experimental analysis. Based on the further CCD optimization and RSM analysis, a quadratic polynomial regression equation was derived from the EPS yield and three variables. Statistical analysis showed the polynomial regression model was in good agreement with the experimental results with the determination coefficient (adj-R(2)) as 0.9434. By solving the quadratic regression equation, the optimal concentrations of glucose, peptone and MgSO(4)·7H(2)O for EPS production were determined as 63.80, 20.76 and 2.74 g/L, respectively. Under the optimum conditions, the predicted EPS yield reached the maximum (13.22 g/L). Verification experiment confirmed the validity with the actual EPS yield as 13.97 g/L, which was 6.29-fold in comparison with that (2.22 g/L) in the original basal medium. The results provide the support data for EPS production in large scale and also speed up the application of Berkleasmium sp. Dzf12.
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Affiliation(s)
- Peiqin Li
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
- Department of Forestry Pathology, College of Forestry, Northwest A & F University, Yangling 712100, China
| | - Liang Xu
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
| | - Yan Mou
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
| | - Tijiang Shan
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
| | - Ziling Mao
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
| | - Shiqiong Lu
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
| | - Youliang Peng
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
| | - Ligang Zhou
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; E-Mails: (P.L.); (L.X.); (Y.M.); (T.S.); (Z.M.); (S.L.); (Y.P.)
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13
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Li Y, Shan T, Mou Y, Li P, Zhao J, Zhao W, Peng Y, Zhou L, Ding C. Enhancement of palmarumycin C12 and C13 production in liquid culture of the endophytic fungus Berkleasmium sp. Dzf12 by oligosaccharides from its host plant Dioscorea zingiberensis. Molecules 2012; 17:3761-73. [PMID: 22450685 PMCID: PMC6268039 DOI: 10.3390/molecules17043761] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 03/21/2012] [Accepted: 03/22/2012] [Indexed: 11/24/2022] Open
Abstract
Three crude oligosaccharides were respectively prepared by acid hydrolysis of three polysaccharides, which were water-extracted polysaccharide (WEP), sodium hydroxide-extracted polysaccharide (SEP) and acid-extracted polysaccharide (AEP) from the rhizomes of Dioscorea zingiberensis. Among the three oligosaccharides, the crude oligosaccharide prepared by acid hydrolysis of WEP was found to be the most efficient elicitor to enhance the production of palmarumycins C12 and C13 in liquid culture of endophytic fungus Berkleasmium sp. Dzf12. When OW was applied to the medium at 300 mg/L on day 3 of culture, the maximal yields of palmarumycin C12 (87.96 mg/L) and palmarumycin C13 (422.28 mg/L) were achieved on day 15 of culture, which were 9.83 and 3.24-fold in comparison with those (8.95 and 130.43 mg/L) of control, respectively. The results indicate that addition of the oligosaccharides from the host plant D. zingiberensis should be an effective strategy for enhancing production of palmarumycins C12 and C13 in liquid culture of endophytic fungus Berkleasmium sp. Dzf12.
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Affiliation(s)
- Yan Li
- College of Biology and Science, Sichuan Agricultural University, Yaan 625014, China
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Tijiang Shan
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Yan Mou
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Peiqin Li
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Jianglin Zhao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Wensheng Zhao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Youliang Peng
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Ligang Zhou
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Authors to whom correspondence should be addressed; (L.Z.); (C.D.)
| | - Chunbang Ding
- College of Biology and Science, Sichuan Agricultural University, Yaan 625014, China
- Authors to whom correspondence should be addressed; (L.Z.); (C.D.)
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14
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Li Y, Li P, Mou Y, Zhao J, Shan T, Ding C, Zhou L. Enhancement of diepoxin ζ production in liquid culture of endophytic fungus Berkleasmium sp. Dzf12 by polysaccharides from its host plant Dioscorea zingiberensis. World J Microbiol Biotechnol 2011; 28:1407-13. [PMID: 22805921 DOI: 10.1007/s11274-011-0940-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Accepted: 11/01/2011] [Indexed: 11/24/2022]
Affiliation(s)
- Yan Li
- College of Biology and Science, Sichuan Agricultural University, Yaan, 625014, China
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