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Sun X, Wang J, Cheng M, Qi Y, Han C. Strategies to Increase the Production of Triterpene Acids in Ligzhi or Reishi Medicinal Mushroom (Ganoderma lucidum, Agaricomycetes): A Review. Int J Med Mushrooms 2024; 26:25-41. [PMID: 38780421 DOI: 10.1615/intjmedmushrooms.2024052871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Ganoderic acids (GAs) are the main active ingredient of Ganoderma lucidum, which has been widely accepted as a medicinal mushroom. Due to the low yield of GAs produced by liquid cultured Ganoderma mycelium and solid cultured fruiting bodies, the commercial production and clinical application of GAs are limited. Therefore, it is important to increase the yield of GA in G. lucidum. A comprehensive literature search was performed with no set data range using the following keywords such as "triterpene," "ganoderic acids," "Ganoderma lucidum," and "Lingzhi" within the main databases including Web of Science, PubMed, and China National Knowledge Infrastructure (CNKI). The data were screened using titles and abstracts and those relevant to the topic were included in the paper and was not limited to studies published in English. Present review focuses on the four aspects: fermentation conditions and substrate, extrinsic elicitor, genetic engineering, and mutagenesis, which play significant roles in increasing triterpene acids production, thus providing an available reference for further research on G. lucidum fermentation.
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Affiliation(s)
- Xiaomei Sun
- Shandong University of Traditional Chinese Medicine
| | - Jing Wang
- Research and Development Center, Shandong Phoenix Biotechnology Co. Ltd., Taian, Shandong, 271000, P.R. China
| | - Mengtao Cheng
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Yitong Qi
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250355, P.R. China
| | - Chunchao Han
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, People's Republic of China; Shandong Provincial Collaborative Innovation Center for Quality Control and Construction of the Whole Industrial Chain of Traditional Chinese Medicine, Jinan, Shandong, 250355, People's Republic of China
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Effects of Heat Stress and Exogenous Salicylic Acid on Secondary Metabolites Biosynthesis in Pleurotus ostreatus (Jacq.) P. Kumm. LIFE (BASEL, SWITZERLAND) 2022; 12:life12060915. [PMID: 35743946 PMCID: PMC9225297 DOI: 10.3390/life12060915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 12/19/2022]
Abstract
Pleurotus ostreatus (Jacq.) P. Kumm has high medicinal value, but few studies exist on regulating secondary metabolite biosynthesis. Environmental factors play a substantial role in the accumulation of microbial secondary metabolites. In this study, the effects of heat stress (24 h) and salicylic acid (0.05 mmol/L) treatment on the secondary metabolism of P. ostreatus were analyzed by metabolome, transcriptome, and gene differential expression analysis. Metabolome and transcriptome analyses showed that salicylic acid significantly increased the accumulation of antibiotics and polyketones, while heat stress increased the accumulation of flavonoids, polyketones, terpenoids, and polysaccharides. The content and the biosynthetic genes expression of heparin were markedly increased by heat stress, and the former was increased by 4565.54-fold. This study provides a reference for future studies on secondary metabolite accumulation in edible fungi.
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Liu Z, Wang S, Xu X, Wang S, Sun T, Zou L. Molecular cloning and characterization of a gene encoding HMG-CoA reductase involved in triterpenoids biosynthetic pathway from Sanghuangporus baumii. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1929482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Zengcai Liu
- Department of Forest Protection, College of Forestry, Northeast Forestry University, Harbin, Heilongjiang, PR China
| | - Shixin Wang
- Department of Forest Protection, College of Forestry, Northeast Forestry University, Harbin, Heilongjiang, PR China
| | - Xinru Xu
- Department of Biological Sciences, College of Life Science, Northeast Forestry University, Harbin, Heilongjiang, PR China
| | - Shuting Wang
- Department of Forest Protection, College of Forestry, Northeast Forestry University, Harbin, Heilongjiang, PR China
| | - Tingting Sun
- Department of Food Science and Engineering, College of Food Engineering, Harbin University, Harbin, Heilongjiang, PR China
| | - Li Zou
- Department of Forest Protection, College of Forestry, Northeast Forestry University, Harbin, Heilongjiang, PR China
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Bhattarai K, Bastola R, Baral B. Antibiotic drug discovery: Challenges and perspectives in the light of emerging antibiotic resistance. ADVANCES IN GENETICS 2020; 105:229-292. [PMID: 32560788 DOI: 10.1016/bs.adgen.2019.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Amid a rising threat of antimicrobial resistance in a global scenario, our huge investments and high-throughput technologies injected for rejuvenating the key therapeutic scaffolds to suppress these rising superbugs has been diminishing severely. This has grasped world-wide attention, with increased consideration being given to the discovery of new chemical entities. Research has now proven that the relatively tiny and simpler microbes possess enhanced capability of generating novel and diverse chemical constituents with huge therapeutic leads. The usage of these beneficial organisms could help in producing new chemical scaffolds that govern the power to suppress the spread of obnoxious superbugs. Here in this review, we have explicitly focused on several appealing strategies employed for the generation of new chemical scaffolds. Also, efforts on providing novel insights on some of the unresolved questions in the production of metabolites, metabolic profiling and also the serendipity of getting "hit molecules" have been rigorously discussed. However, we are highly aware that biosynthetic pathway of different classes of secondary metabolites and their biosynthetic route is a vast topic, thus we have avoided discussion on this topic.
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Affiliation(s)
- Keshab Bhattarai
- University of Tübingen, Tübingen, Germany; Center for Natural and Applied Sciences (CENAS), Kathmandu, Nepal
| | - Rina Bastola
- Spinal Cord Injury Association-Nepal (SCIAN), Pokhara, Nepal
| | - Bikash Baral
- Spinal Cord Injury Association-Nepal (SCIAN), Pokhara, Nepal.
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Integrated Proteomics and Metabolomics Analysis Provides Insights into Ganoderic Acid Biosynthesis in Response to Methyl Jasmonate in Ganoderma Lucidum. Int J Mol Sci 2019; 20:ijms20246116. [PMID: 31817230 PMCID: PMC6941157 DOI: 10.3390/ijms20246116] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/01/2019] [Accepted: 12/02/2019] [Indexed: 02/06/2023] Open
Abstract
Ganoderma lucidum is widely recognized as a medicinal basidiomycete. It was previously reported that the plant hormone methyl jasmonate (MeJA) could induce the biosynthesis of ganoderic acids (GAs), which are the main active ingredients of G. lucidum. However, the regulatory mechanism is still unclear. In this study, integrated proteomics and metabolomics were employed on G. lucidum to globally identify differences in proteins and metabolites under MeJA treatment for 15 min (M15) and 24 h (M24). Our study successfully identified 209 differential abundance proteins (DAPs) in M15 and 202 DAPs in M24. We also identified 154 metabolites by GC-MS and 70 metabolites by LC-MS in M24 that are involved in several metabolic pathways. With an in-depth analysis, we found some DAPs and metabolites that are involved in the oxidoreduction process, secondary metabolism, energy metabolism, transcriptional and translational regulation, and protein synthesis. In particular, our results reveal that MeJA treatment leads to metabolic rearrangement that inhibited the normal glucose metabolism, energy supply, and protein synthesis of cells but promoted secondary metabolites, including GAs. In conclusion, our proteomics and metabolomics data further confirm the promoting effect of MeJA on the biosynthesis of GAs in G. lucidum and will provide a valuable resource for further investigation of the molecular mechanisms of MeJA signal response and GA biosynthesis in G. lucidum and other related species.
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Xu J, Yue T, Yu X, Zhao P, Li T, Li N. Enhanced production of individual ganoderic acids by integrating Vitreoscilla haemoglobin expression and calcium ion induction in liquid static cultures of Ganoderma lingzhi. Microb Biotechnol 2019; 12:1180-1187. [PMID: 30821132 PMCID: PMC6801144 DOI: 10.1111/1751-7915.13381] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/18/2019] [Accepted: 02/04/2019] [Indexed: 11/30/2022] Open
Abstract
Ganoderic acids produced by Ganoderma exhibit anticancer and antimetastatic activities. A novel approach by combining Vitreoscilla haemoglobin (VHb) expression and calcium ion induction was developed to enhance ganoderic acid (GA) production in liquid static cultures of G. lingzhi. The maximum contents of GA-O, GA-S and GA-Me were 1451.33 ± 67.50, 1431.23 ± 79.74 and 1283.81 ± 85.13 μg per 100 mg cell weight, respectively under the integrated approach, which are the highest contents as ever reported in Ganoderma. The contents of squalene and lanosterol were increased by 2.0- and 3.0-fold in this case compared with those in the control. The transcription levels of 3-hydroxy-3-methylglutaryl coenzyme A reductase, farnesyl-diphosphate synthase, squalene synthase and cytochrome P450 CYP5150L8 were upregulated by 2.56-, 3.31-, 2.59- and 6.12-fold respectively. Additionally, the expression of VHb improved the ratio of type I to type II GA in liquid static cultivation of G. lingzhi. The transcription levels of cyp512a2, cyp512v2 and cyp512a13, candidate cytochrome P450 genes involved in oxidative modification of the lanostane skeleton in GA biosynthesis, were also increased by 2.28-, 2.65- and 3.54-fold in the VHb-expressing strain respectively. Our results illustrated that the approach described here efficiently improved GA production in G. lingzhi fermentation.
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Affiliation(s)
- Jun‐Wei Xu
- Faculty of Life Science and TechnologyKunming University of Science and TechnologyKunming650500China
| | - Tong‐Hui Yue
- Faculty of Life Science and TechnologyKunming University of Science and TechnologyKunming650500China
| | - Xuya Yu
- Faculty of Life Science and TechnologyKunming University of Science and TechnologyKunming650500China
| | - Peng Zhao
- Faculty of Life Science and TechnologyKunming University of Science and TechnologyKunming650500China
| | - Tao Li
- Faculty of Life Science and TechnologyKunming University of Science and TechnologyKunming650500China
| | - Na Li
- Faculty of ScienceKunming University of Science and TechnologyKunming650500China
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Enhanced Ganoderic Acids Accumulation and Transcriptional Responses of Biosynthetic Genes in Ganoderma lucidum Fruiting Bodies by Elicitation Supplementation. Int J Mol Sci 2019; 20:ijms20112830. [PMID: 31185659 PMCID: PMC6600565 DOI: 10.3390/ijms20112830] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/06/2019] [Accepted: 06/07/2019] [Indexed: 02/07/2023] Open
Abstract
Ganoderic acids (GAs) are a type of highly oxygenated lanostane-type triterpenoids that are responsible for the pharmacological activities of Ganoderma lucidum. They have been investigated for their biological activities, including antibacterial, antiviral, antitumor, anti-HIV-1, antioxidation, and cholesterol reduction functions. Inducer supplementation is viewed as a promising technology for the production of GAs. This study found that supplementation with sodium acetate (4 mM) significantly increased the GAs content of fruiting bodies by 28.63% compared to the control. In order to explore the mechanism of ganoderic acid accumulation, the transcriptional responses of key GAs biosynthetic genes, including the acetyl coenzyme A synthase gene, and the expression levels of genes involved in calcineurin signaling and acetyl-CoA content have been analyzed. The results showed that the expression of three key GAs biosynthetic genes (hmgs, fps, and sqs) were significantly up-regulated. Analysis indicated that the acetate ion increased the expression of genes related to acetic acid assimilation and increased GAs biosynthesis, thereby resulting in the accumulation of GAs. Further investigation of the expression levels of genes involved in calcineurin signaling revealed that Na+ supplementation and the consequent exchange of Na+/Ca2+ induced GAs biosynthesis. Overall, this study indicates a feasible new approach of utilizing sodium acetate elicitation for the enhanced production of valuable GAs content in G. lucidum, and also provided the primary mechanism of GAs accumulation.
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Ren A, Shi L, Zhu J, Yu H, Jiang A, Zheng H, Zhao M. Shedding light on the mechanisms underlying the environmental regulation of secondary metabolite ganoderic acid in Ganoderma lucidum using physiological and genetic methods. Fungal Genet Biol 2019; 128:43-48. [PMID: 30951869 DOI: 10.1016/j.fgb.2019.03.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 03/13/2019] [Accepted: 03/31/2019] [Indexed: 12/23/2022]
Abstract
The secondary metabolites of fungi are often produced at very low concentrations, and until recently the regulatory mechanisms of secondary metabolite biosynthesis have been unclear. Ganoderma lucidum is a macrofungus that is widely used as a traditional Chinese medicine or medicinal mushroom: ganoderic acid (GA) is one of the main active ingredients. Here, we review research from the last decade on which and how environmental factors regulate GA biosynthesis. These environmental factors are mainly three components: a single chemical/biological or biochemical signal, physical triggers, and nutritional conditions. Because G. lucidum is a non-model Basidiomycete, a combination of physiological and genetic research is needed to determine how those environmental factors regulate GA biosynthesis. The regulation of GA biosynthesis includes ROS, Ca2+, cAMP and phospholipid signaling, and cross-talk between different signaling pathways. The regulatory mechanisms for the synthesis of this secondary metabolite, from the perspective of physiology and genetics, in G. lucidum will provide ideas for studying the regulation of fungal secondary metabolism in other non-model species, especially those fungi with limitations in genetic manipulation.
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Affiliation(s)
- Ang Ren
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, PR China
| | - Liang Shi
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, PR China
| | - Jing Zhu
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, PR China
| | - Hanshou Yu
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, PR China
| | - Ailiang Jiang
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, PR China
| | - Huihua Zheng
- Jiangsu Alphay Bio-technology Co., Ltd./Key Laboratory of Edible Mushroom Processing, Ministry of Agriculture, Nantong 226009, Jiangsu, PR China
| | - Mingwen Zhao
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, PR China.
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Yang C, Li W, Li C, Zhou Z, Xiao Y, Yan X. Metabolism of ganoderic acids by a Ganoderma lucidum cytochrome P450 and the 3-keto sterol reductase ERG27 from yeast. PHYTOCHEMISTRY 2018; 155:83-92. [PMID: 30077898 DOI: 10.1016/j.phytochem.2018.07.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 07/16/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
Ganoderic acids, a group of oxygenated lanostane-type triterpenoids, are the major bioactive compounds produced by the well-known medicinal macro fungus Ganoderma lucidum. More than 150 ganoderic acids have been identified, and the genome of G. lucidum has been sequenced recently. However, the biosynthetic pathways of ganoderic acids have not yet been elucidated. Here, we report the functional characterization of a cytochrome P450 gene CYP512U6 from G. lucidum, which is involved in the ganoderic acid biosynthesis. CYP512U6 hydroxylates the ganoderic acids DM and TR at the C-23 position to produce hainanic acid A and ganoderic acid Jc, respectively. In addition, CYP512U6 can also hydroxylate a modified ganoderic acid DM in which the C-3 ketone has been reduced to hydroxyl by the sterol reductase ERG27 from Saccharomyces cerevisiae. An NADPH-dependent cytochrome P450 reductase from G. lucidum was also isolated and characterized. These results will help elucidate the biosynthetic pathways of ganoderic acids.
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Affiliation(s)
- Chengshuai Yang
- CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weichao Li
- CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China
| | - Chen Li
- CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China
| | - Zhihua Zhou
- CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Youli Xiao
- CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xing Yan
- CAS-Key Laboratory of Synthetic Biology, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Rd, Shanghai 200032, China.
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Hu G, Zhai M, Niu R, Xu X, Liu Q, Jia J. Optimization of Culture Condition for Ganoderic Acid Production in Ganoderma lucidum Liquid Static Culture and Design of a Suitable Bioreactor. Molecules 2018; 23:molecules23102563. [PMID: 30297630 PMCID: PMC6222601 DOI: 10.3390/molecules23102563] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 10/04/2018] [Accepted: 10/06/2018] [Indexed: 11/16/2022] Open
Abstract
Ganoderma lucidum, a famous medicinal mushroom used worldwide, is a rich source of triterpenoids which, together with polysaccharides, are believed to be the main effective constituents of G. lucidum. With the increase of market demand, the wild resource is facing serious limitations, and the quality of cultivated fruiting bodies can be seriously affected by the availability of wood resources and by cultivation management practices. In the present study, we aimed to develop an alternative way to produce useful triterpenoids from G. lucidum. We cultured the strain using a two-stage liquid culture strategy and investigated the effects of nitrogen limitation, carbon supply, static culture volume and air supply in the static culture stage on the accumulation of five triterpenoids (GA-P, GA-Q, GA-T, GA-S, GA-R). Our results showed that, under optimized condition, the total yield of the five triterpenoids reached 963 mg/L (as determined by HPLC). Among the five triterpenoids, GA-T accounted for about 75% of the total yield. Besides, a bioreactor suitable for fungal liquid static culture with a 10 L extensible plastic bag shaped culture unit was designed and in which the maximum total yield of the five GAs reached 856.8 mg/L, and the GAs content reached 5.99%. Our results demonstrate the potential of industrial application of G. lucidum culture for the production of triterpenoids, especially GA-T. Air supply significantly improved the accumulation of triterpenoids, and this will provide important clues to understand why more triterpenoids are produced in the mycelia mat under static liquid culture conditions.
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Affiliation(s)
- Gaosheng Hu
- School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Manhuayun Zhai
- School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Rong Niu
- School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Xiaoqiang Xu
- School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Qian Liu
- School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Jingming Jia
- School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Zhao Y, Yue C, Ding W, Li T, Xu JW, Zhao P, Ma H, Yu X. Butylated hydroxytoluene induces astaxanthin and lipid production in Haematococcus pluvialis under high-light and nitrogen-deficiency conditions. BIORESOURCE TECHNOLOGY 2018; 266:315-321. [PMID: 29982053 DOI: 10.1016/j.biortech.2018.06.111] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/29/2018] [Accepted: 06/30/2018] [Indexed: 05/20/2023]
Abstract
The aim of this study was to investigate the effects of butylated hydroxytoluene (BHT) on the production of astaxanthin and lipids in Haematococcus pluvialis LUGU under high-light and nitrogen-deficiency conditions. Astaxanthin and lipid contents were increased by 71.13% and 10.71%, respectively, in algal cells treated with 2 mg L-1 BHT. The maximal contents of astaxanthin and lipids were 3.17% and 46%, respectively. The levels of reactive oxygen species (ROS) in the presence of BHT were lower than in the control, and this effect involved strong activation of several antioxidases. Additionally, BHT application upregulated endogenous nitric oxide (NO) production. These results showed that this approach is useful for stimulating production of astaxanthin and lipids in H. pluvialis and that exogenous BHT induces astaxanthin and lipid production, which is responsible for the signalling molecule responses against abiotic stress conditions in H. pluvialis.
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Affiliation(s)
- Yongteng Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Chenchen Yue
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Wei Ding
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Jun-Wei Xu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Peng Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Huixian Ma
- School of Foreign Languages, Kunming University, Kunming 650200, China
| | - Xuya Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China.
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Cross Talk between Calcium and Reactive Oxygen Species Regulates Hyphal Branching and Ganoderic Acid Biosynthesis in Ganoderma lucidum under Copper Stress. Appl Environ Microbiol 2018; 84:AEM.00438-18. [PMID: 29678914 DOI: 10.1128/aem.00438-18] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/16/2018] [Indexed: 02/07/2023] Open
Abstract
Ganoderma lucidum is among the best known medicinal basidiomycetes due to its production of many pharmacologically active compounds. To study the regulatory networks involved in its growth and development, we analyzed the relationship between reactive oxygen species (ROS) and Ca2+ signaling in the regulation of hyphal branching and ganoderic acid (GA) biosynthesis after Cu2+ treatment. Our results revealed that Cu2+ treatment decreased the distance between hyphal branches and increased the GA content and the intracellular levels of ROS and Ca2+ Further research revealed that the Cu2+-induced changes in hyphal branch distance, GA content, and cytosolic Ca2+ level were dependent on increases in cytosolic ROS. Our results also showed that increased cytosolic Ca2+ could reduce cytosolic ROS by activating antioxidases and modulating Cu2+ accumulation, resulting in feedback to adjust hyphal growth and GA biosynthesis. These results indicated that cytosolic ROS and Ca2+ levels exert important cross talk in the regulation of hyphal growth and GA biosynthesis induced by Cu2+ Taken together, our results provide a reference for analyzing the interactions among different signal transduction pathways with regard to the regulation of growth and development in other filamentous fungi.IMPORTANCEGanoderma lucidum, which is known as an important medicinal basidiomycete, is gradually becoming a model organism for studying environmental regulation and metabolism. In this study, we analyzed the relationship between reactive oxygen species (ROS) and Ca2+ signaling in the regulation of hyphal branching and ganoderic acid (GA) biosynthesis under Cu2+ stress. The results revealed that the Cu2+-induced changes in the hyphal branch distance, GA content, and cytosolic Ca2+ level were dependent on increases in cytosolic ROS. Furthermore, the results indicated that increased cytosolic Ca2+ could reduce cytosolic ROS levels by activating antioxidases and modulating Cu2+ accumulation. The results in this paper indicate that there was important cross talk between cytosolic ROS and Ca2+ levels in the regulation of hyphal growth and GA biosynthesis induced by Cu2.
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Gu L, Zheng Y, Lian D, Zhong X, Liu X. Production of triterpenoids from Ganoderma lucidum : Elicitation strategy and signal transduction. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.03.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Enhanced production of polysaccharides and triterpenoids in Ganoderma lucidum fruit bodies on induction with signal transduction during the fruiting stage. PLoS One 2018; 13:e0196287. [PMID: 29694432 PMCID: PMC5919040 DOI: 10.1371/journal.pone.0196287] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 04/10/2018] [Indexed: 12/31/2022] Open
Abstract
Ganoderma lucidum is a medicinal mushroom that has been widely used in East Asia for the treatment of various diseases. The pharmacological activity of this fungus is primarily attributable to the polysaccharides and triterpenoids. In this study, to obtain the fruit bodies with improved content of active constituents, we examined the effect of salicylic acid (SA) and calcium ion on the biosynthesis of polysaccharides and triterpenoids by spraying the chemicals during the fruiting. To explore the underlying mechanisms for the variation, the transcripts of related genes involved in the polysaccharide and triterpenoid biosynthesis were measured. Results showed that Ca2+ had no effect on production of polysaccharides and triterpenoids, whereas SA increased triterpenoid content by 23.32%, compared to the control, but it had little influence on polysaccharide production. Interestingly, the combined induction increased polysaccharide and triterpenoid content by 9.02% and 13.61%, respectively, compared to the control. Under Ca2+ induction, the transcript of ugp gene in the polysaccharide biosynthetic pathway up-regulated in all three stages (mycelium, primordium, and fruit body), while pgm and gls gave no response in the mycelium and primordium stages, and up-regulated in the fruit body stage. Differently, six key triterpenoid biosynthetic genes including hmgr, hmgs, mvd, fps, sqs, and ls did not respond to the induction. In the case of SA and combined induction, pgm and ugp were up-regulated in all three stages, while gls showed an increased expression in the primordium stage and no response in other stages. The six triterpenoid biosynthetic genes were up-regulated in all three stages. The present study provides a useful approach to producing G. lucidum fruit bodies with high polysaccharide and triterpenoid content. This is important to the G. lucidum industry.
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15
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Shi DK, Zhu J, Sun ZH, Zhang G, Liu R, Zhang TJ, Wang SL, Ren A, Zhao MW. Alternative oxidase impacts ganoderic acid biosynthesis by regulating intracellular ROS levels in Ganoderma lucidum. MICROBIOLOGY-SGM 2017; 163:1466-1476. [PMID: 28901910 DOI: 10.1099/mic.0.000527] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The alternative oxidase (AOX), which forms a branch of the mitochondrial respiratory electron transport pathway, functions to sustain electron flux and alleviate reactive oxygen species (ROS) production. In this article, a homologous AOX gene was identified in Ganoderma lucidum. The coding sequence of the AOX gene in G. lucidum contains 1038 nucleotides and encodes a protein of 39.48 kDa. RNA interference (RNAi) was used to study the function of AOX in G. lucidum, and two silenced strains (AOXi6 and AOXi21) were obtained, showing significant decreases of approximately 60 and 50 %, respectively, in alternative pathway respiratory efficiency compared to WT. The content of ganoderic acid (GA) in the mutant strains AOXi6 and AOXi21 showed significant increases of approximately 42 and 44 %, respectively, compared to WT. Elevated contents of intermediate metabolites in GA biosynthesis and elevated transcription levels of corresponding genes were also observed in the mutant strains AOXi6 and AOXi21. In addition, the intracellular ROS content in strains AOXi6 and AOXi21 was significantly increased, by approximately 1.75- and 1.93-fold, respectively, compared with WT. Furthermore, adding N-acetyl-l-cysteine (NAC), a ROS scavenger, significantly depressed the intracellular ROS content and GA accumulation in AOX-silenced strains. These results indicate that AOX affects GA biosynthesis by regulating intracellular ROS levels. Our research revealed the important role of AOX in the secondary metabolism of G. lucidum.
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Affiliation(s)
- Deng-Ke Shi
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Jing Zhu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Ze-Hua Sun
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Guang Zhang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Rui Liu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Tian-Jun Zhang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Sheng-Li Wang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Ang Ren
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
| | - Ming-Wen Zhao
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture; Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing , 210095, Jiangsu, PR China
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16
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Gu L, Zhong X, Lian D, Zheng Y, Wang H, Liu X. Triterpenoid biosynthesis and the transcriptional response elicited by nitric oxide in submerged fermenting Ganoderma lucidum. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.05.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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17
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Li D, Zhao Y, Ding W, Zhao P, Xu JW, Li T, Ma H, Yu X. A strategy for promoting lipid production in green microalgae Monoraphidium sp. QLY-1 by combined melatonin and photoinduction. BIORESOURCE TECHNOLOGY 2017; 235:104-112. [PMID: 28365337 DOI: 10.1016/j.biortech.2017.03.114] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/15/2017] [Accepted: 03/20/2017] [Indexed: 05/03/2023]
Abstract
Microalgae lipids are potential candidates for the production of renewable biodiesel. The combination of plant hormones and two-step cultivation regulates lipid production in microalgae. A strategy for promoting lipid accumulation in Monoraphidium sp. QLY-1 by combining exogenous melatonin (MT) and photoinduction was developed. The effects of melatonin on the lipid content, reactive oxygen species (ROS), and activities of three key fatty acid biosynthetic enzyme in Monoraphidium sp. QLY-1 were investigated. The lipid content increased by 1.32-fold under 1μM melatonin treatment. The maximum lipid content achieved was 49.6%. However, the protein and carbohydrate contents decreased rapidly from 57.21% to 47.96% and from 53.4% to 37.71%, respectively. Biochemical and physiological analyses suggested that the ROS and lipid biosynthesis-related enzyme activities correlated with increased lipid accumulation under photo-melatonin induction conditions.
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Affiliation(s)
- Dafei Li
- Faculty of Life Sciences and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Yongteng Zhao
- Faculty of Life Sciences and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Wei Ding
- Faculty of Life Sciences and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Peng Zhao
- Faculty of Life Sciences and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Jun-Wei Xu
- Faculty of Life Sciences and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Tao Li
- Faculty of Life Sciences and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Huixian Ma
- School of Foreign Languages, Kunming University, Kunming 650200, China
| | - Xuya Yu
- Faculty of Life Sciences and Technology, Kunming University of Science and Technology, Kunming 650500, China.
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18
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Zhang DH, Jiang LX, Li N, Yu X, Zhao P, Li T, Xu JW. Overexpression of the Squalene Epoxidase Gene Alone and in Combination with the 3-Hydroxy-3-methylglutaryl Coenzyme A Gene Increases Ganoderic Acid Production in Ganoderma lingzhi. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4683-4690. [PMID: 28530827 DOI: 10.1021/acs.jafc.7b00629] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The squalene epoxidase (SE) gene from the biosynthetic pathway of ganoderic acid (GA) was cloned and overexpressed in Ganoderma lingzhi. The strain that overexpressed the SE produced approximately 2 times more GA molecules than the wild-type (WT) strain. Moreover, SE overexpression upregulated lanosterol synthase gene expression in the biosynthetic pathway. These results indicated that SE stimulates GA accumulation. Then, the SE and 3-hydroxy-3-methylglutaryl coenzyme A (HMGR) genes were simultaneously overexpressed in G. lingzhi. Compared with the individual overexpression of SE or HMGR, the combined overexpression of the two genes further enhanced individual GA production. The overexpressing strain produced maximum GA-T, GA-S, GA-Mk, and GA-Me contents of 90.4 ± 7.5, 35.9 ± 5.4, 6.2 ± 0.5, and 61.8 ± 5.8 μg/100 mg dry weight, respectively. These values were 5.9, 4.5, 2.4, and 5.8 times higher than those produced by the WT strain. This is the first example of the successful manipulation of multiple biosynthetic genes to improve GA content in G. lingzhi.
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Affiliation(s)
- De-Huai Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming, 650500, China
| | - Lu-Xi Jiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming, 650500, China
| | - Na Li
- Faculty of Science, Kunming University of Science and Technology , Kunming, 650500, China
| | - Xuya Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming, 650500, China
| | - Peng Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming, 650500, China
| | - Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming, 650500, China
| | - Jun-Wei Xu
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming, 650500, China
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19
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Hu Y, Ahmed S, Li J, Luo B, Gao Z, Zhang Q, Li X, Hu X. Improved ganoderic acids production in Ganoderma lucidum by wood decaying components. Sci Rep 2017; 7:46623. [PMID: 28422185 PMCID: PMC5395960 DOI: 10.1038/srep46623] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 03/21/2017] [Indexed: 02/02/2023] Open
Abstract
Ganoderma lucidum is a legendary Traditional Chinese Medicine (TCM) over a few thousands of years and one kind of its major active components are Ganoderic acids (GAs). GAs are largely produced in the mushroom primordium and fruiting body but much less in mycelium stage. However, little is known on the underlying regulatory mechanism. As a saprophytic fungus, G. lucidum solely obtains nutrients by wood decaying. Wood in general contains sophisticated chemical components with diverse structural units. To explore a strategy that extensively leads to GAs induction in the submerged liquid fermentation, all chemical components that might be possibly from the wood decaying were tested individually as GAs inducers. It was found that GAs production increased 85.96% by 1.5% microcrystalline cellulose (MCC) and 63.90% by 0.5% D-galactose. The transcription level of a few rate-limiting or chemically diverting enzymes responsible for GAs biosynthesis was greatly induced by MCC and D-galactose. The concentration and time-course titration study indicated that these two chemicals might not be utilized as carbon sources but they played a comprehensive role in the secondary metabolites synthesis. Our data indicated that MCC and D-galactose might be further industrialized for higher GAs production in G. lucidum in submerged fermentation.
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Affiliation(s)
- Yanru Hu
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
| | - Shakeel Ahmed
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
| | - Jiawei Li
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
| | - Biaobiao Luo
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
| | - Zengyan Gao
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
| | - Qiyun Zhang
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
| | - Xiaohua Li
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
| | - Xuebo Hu
- Laboratory of Drug Discovery and Molecular Engineering, Department of Medicinal Plants, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070 China.,National-Regional Joint Engineering Research Center in Hubei for Medicinal Plant Breeding and Cultivation, Huazhong Agricultural University, Wuhan, 430070 China.,Medicinal Plant Engineering Research Center of Hubei Province, Huazhong Agricultural University, Wuhan, 430070 China.,Biomedical Center, Huazhong Agricultural University, Wuhan, 430070 China
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20
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Induction of apoptosis and ganoderic acid biosynthesis by cAMP signaling in Ganoderma lucidum. Sci Rep 2017; 7:318. [PMID: 28336949 PMCID: PMC5428012 DOI: 10.1038/s41598-017-00281-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 02/20/2017] [Indexed: 12/21/2022] Open
Abstract
Apoptosis is an essential physiological process that controls many important biological functions. However, apoptosis signaling in relation to secondary metabolite biosynthesis in plants and fungi remains a mystery. The fungus Ganoderma lucidum is a popular herbal medicine worldwide, but the biosynthetic regulation of its active ingredients (ganoderic acids, GAs) is poorly understood. We investigated the role of 3′,5′-cyclic adenosine monophosphate (cAMP) signaling in fungal apoptosis and GA biosynthesis in G. lucidum. Two phosphodiesterase inhibitors (caffeine and 3-isobutyl-1-methylxanthine, IBMX) and an adenylate cyclase activator (sodium fluoride, NaF) were used to increase intracellular cAMP levels. Fungal apoptosis was identified by terminal deoxynucleotidyl transferase mediated dUTP nick end labeling (TUNEL) assay and a condensed nuclear morphology. Our results showed that GA production and fungal apoptosis were induced when the mycelium was treated with NaF, caffeine, or cAMP/IBMX. Downregulation of squalene synthase and lanosterol synthase gene expression by cAMP was detected in the presence of these chemicals, which indicates that these two genes are not critical for GA induction. Transcriptome analysis indicated that mitochondria might play an important role in cAMP-induced apoptosis and GA biosynthesis. To the best of our knowledge, this is the first report to reveal that cAMP signaling induces apoptosis and secondary metabolite production in fungi.
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21
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Liu YN, Zhang TJ, Lu XX, Ma BL, Ren A, Shi L, Jiang AL, Yu HS, Zhao MW. Membrane fluidity is involved in the regulation of heat stress induced secondary metabolism in Ganoderma lucidum. Environ Microbiol 2017; 19:1653-1668. [PMID: 28198137 DOI: 10.1111/1462-2920.13693] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 02/06/2017] [Indexed: 01/17/2023]
Abstract
Ganoderma lucidum has become a potential model system for evaluating how environmental factors regulate the secondary metabolism of basidiomycetes. Heat stress (HS) is one of the most important environmental factors. It was previously reported that HS could induce the biosynthesis of ganoderic acids (GA). In this study, we found that HS increased GA biosynthesis and also significantly increased cell membrane fluidity. Furthermore, our results showed that addition of the membrane rigidifier dimethylsulfoxide (DMSO) could revert the increased GA biosynthesis elicited by HS. These results indicate that an increase in membrane fluidity is associated with HS-induced GA biosynthesis. Further evidence showed that the GA content was decreased in D9des-silenced strains and could be reverted to WT levels by addition of the membrane fluidizer benzyl alcohol (BA). In contrast, GA content was increased in D9des-overexpression strains and could be reverted to WT levels by the addition of DMSO. Furthermore, both membrane fluidity and GA biosynthesis induced by HS could be reverted by DMSO in WT and D9des-silenced strains. To the best of our knowledge, this is the first report demonstrating that membrane fluidity is involved in the regulation of heat stress induced secondary metabolism in filamentous fungi.
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Affiliation(s)
- Yong-Nan Liu
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
| | - Tian-Jun Zhang
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
| | - Xiao-Xiao Lu
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
| | - Bao-Liang Ma
- Department of Physics, Science of College, Nanjing Agricultural University, Nanjing, 210095, P.R China
| | - Ang Ren
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
| | - Liang Shi
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
| | - Ai-Liang Jiang
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
| | - Han-Shou Yu
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
| | - Ming-Wen Zhao
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, P.R. China
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22
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Zhang DH, Li N, Yu X, Zhao P, Li T, Xu JW. Overexpression of the homologous lanosterol synthase gene in ganoderic acid biosynthesis in Ganoderma lingzhi. PHYTOCHEMISTRY 2017; 134:46-53. [PMID: 27894599 DOI: 10.1016/j.phytochem.2016.11.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/10/2016] [Accepted: 11/16/2016] [Indexed: 06/06/2023]
Abstract
Ganoderic acids (GAs) in Ganoderma lingzhi exhibit anticancer and antimetastatic activities. GA yields can be potentially improved by manipulating G. lingzhi through genetic engineering. In this study, a putative lanosterol synthase (LS) gene was cloned and overexpressed in G. lingzhi. Results showed that its overexpression (OE) increased the ganoderic acid (GA) content and the accumulation of lanosterol and ergosterol in a submerged G. lingzhi culture. The maximum contents of GA-O, GA-Mk, GA-T, GA-S, GA-Mf, and GA-Me in transgenic strains were 46.6 ± 4.8, 24.3 ± 3.5, 69.8 ± 8.2, 28.9 ± 1.4, 15.4 ± 1.2, and 26.7 ± 3.1 μg/100 mg dry weight, respectively, these values being 6.1-, 2.2-, 3.2-, 4.8-, 2.0-, and 1.9-times higher than those in wild-type strains. In addition, accumulated amounts of lanosterol and ergosterol in transgenic strains were 2.3 and 1.4-fold higher than those in the control strains, respectively. The transcription level of LS was also increased by more than five times in the presence of the G. lingzhi glyceraldehyde-3-phosphate dehydrogenase gene promoter, whereas transcription levels of 3-hydroxy-3-methylglutaryl coenzyme A enzyme and squalene synthase did not change significantly in transgenic strains. This study demonstrated that OE of the homologous LS gene can enhance lanosterol accumulation. A large precursor supply promotes GA biosynthesis.
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Affiliation(s)
- De-Huai Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Na Li
- Faculty of Science, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xuya Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Peng Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
| | - Jun-Wei Xu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.
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23
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Making Use of Genomic Information to Explore the Biotechnological Potential of Medicinal Mushrooms. MEDICINAL AND AROMATIC PLANTS OF THE WORLD 2017. [DOI: 10.1007/978-981-10-5978-0_13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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24
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Feng J, Zhang JS, Feng N, Yan MQ, Yang Y, Jia W, Lin CC. A novel Ganoderma lucidum G0119 fermentation strategy for enhanced triterpenes production by statistical process optimization and addition of oleic acid. Eng Life Sci 2016; 17:430-439. [PMID: 32624788 DOI: 10.1002/elsc.201600071] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/08/2016] [Accepted: 09/19/2016] [Indexed: 11/06/2022] Open
Abstract
A novel enhanced triterpenes fermentation production process by Ganoderma lucidum G0119 with the addition of oleic acid in the medium has been developed and optimized. All of the six exogenous additives tested were found to exhibit stimulatory effect on mycelial growth and triterpenes biosynthesis by G. lucidum. The results show that oleic acid addition had significant role in promoting triterpenes production. The optimal concentration and time of oleic acid addition were determined to be 30 mL/L and 0 h, respectively. Furthermore, three significant factors influencing triterpenes production were identified as glucose, magnesium sulfate and temperature using the Plackett-Burman design. The optimized conditions by central composite design were 27.83 g/L glucose, 1.32 g/L magnesium sulfate, 26.2°C temperature. The triterpenes fermentation yield with the optimized medium based on actual confirmatory experimental data in 6 L fermentor was 1.076 g/L versus the statistical model predicted value of 1.080 g/L. Our innovatively developed triterpenes fermentation production technology and process has been proven to produce high triterpenes productivity and yield conceivably useful for industrial production.
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Affiliation(s)
- Jie Feng
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture Shanghai China.,National Engineering Research Center of Edible Fungi Key Laboratory of Agricultural Genetics and Breeding of Shanghai Shanghai China.,Institute of Edible Fungi Shanghai Academy of Agricultural Sciences Shanghai China
| | - Jing-Song Zhang
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture Shanghai China.,National Engineering Research Center of Edible Fungi Key Laboratory of Agricultural Genetics and Breeding of Shanghai Shanghai China.,Institute of Edible Fungi Shanghai Academy of Agricultural Sciences Shanghai China
| | - Na Feng
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture Shanghai China.,National Engineering Research Center of Edible Fungi Key Laboratory of Agricultural Genetics and Breeding of Shanghai Shanghai China.,Institute of Edible Fungi Shanghai Academy of Agricultural Sciences Shanghai China
| | - Meng-Qiu Yan
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture Shanghai China.,National Engineering Research Center of Edible Fungi Key Laboratory of Agricultural Genetics and Breeding of Shanghai Shanghai China.,Institute of Edible Fungi Shanghai Academy of Agricultural Sciences Shanghai China
| | - Yan Yang
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture Shanghai China.,National Engineering Research Center of Edible Fungi Key Laboratory of Agricultural Genetics and Breeding of Shanghai Shanghai China.,Institute of Edible Fungi Shanghai Academy of Agricultural Sciences Shanghai China
| | - Wei Jia
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture Shanghai China.,National Engineering Research Center of Edible Fungi Key Laboratory of Agricultural Genetics and Breeding of Shanghai Shanghai China.,Institute of Edible Fungi Shanghai Academy of Agricultural Sciences Shanghai China
| | - Chi-Chung Lin
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture Shanghai China.,National Engineering Research Center of Edible Fungi Key Laboratory of Agricultural Genetics and Breeding of Shanghai Shanghai China.,Institute of Edible Fungi Shanghai Academy of Agricultural Sciences Shanghai China
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25
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Feng J, Feng N, Zhang JS, Yang Y, Jia W, Lin CC. A New Temperature Control Shifting Strategy for Enhanced Triterpene Production by Ganoderma lucidum G0119 Based on Submerged Liquid Fermentation. Appl Biochem Biotechnol 2016; 180:740-752. [PMID: 27272496 DOI: 10.1007/s12010-016-2129-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 05/06/2016] [Indexed: 11/24/2022]
Abstract
Temperature control is a very important factor on triterpene productivity in submerged liquid fermentation. Temperature effects from 23 to 32 °C on triterpene production by Ganoderma lucidum G0119 were investigated in 6-L stirred fermentor. Logistic and Luedeking-Piret equations were used to estimate the mycelial growth and triterpene production kinetics by regression analysis. On that basis, a temperature-shifting fermentation control strategy was established. From 0 to 61 h, culturing was performed at 32 °C to get high specific mycelial growth rate. Between 62 and 127 h, the temperature was decreased stepwise from 31 to 30 °C to maintain high triterpene productivity. After 128 h, temperature was maintained at 29 °C to minimize triterpene production inhibition and sustain high productivity. Elevated triterpene level (0.269 g L-1), yield (0.0101 g g-1), and productivity (0.00207 g (L h)-1) were achieved representing 27.32, 13.94, and 37.11 % higher than submerged liquid fermentation at constant temperature of 29 °C, respectively, feasible for the industrial scale.
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Affiliation(s)
- Jie Feng
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture, Shanghai, China.,National Engineering Research Center of Edible Fungi, Key Laboratory of Agricultural Genetics and Breeding of Shanghai, Shanghai, China.,Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Fengxian District, Shanghai, 201403, China
| | - Na Feng
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture, Shanghai, China.,National Engineering Research Center of Edible Fungi, Key Laboratory of Agricultural Genetics and Breeding of Shanghai, Shanghai, China.,Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Fengxian District, Shanghai, 201403, China
| | - Jing-Song Zhang
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture, Shanghai, China. .,National Engineering Research Center of Edible Fungi, Key Laboratory of Agricultural Genetics and Breeding of Shanghai, Shanghai, China. .,Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Fengxian District, Shanghai, 201403, China.
| | - Yan Yang
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture, Shanghai, China.,National Engineering Research Center of Edible Fungi, Key Laboratory of Agricultural Genetics and Breeding of Shanghai, Shanghai, China.,Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Fengxian District, Shanghai, 201403, China
| | - Wei Jia
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture, Shanghai, China.,National Engineering Research Center of Edible Fungi, Key Laboratory of Agricultural Genetics and Breeding of Shanghai, Shanghai, China.,Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Fengxian District, Shanghai, 201403, China
| | - Chi-Chung Lin
- Key Laboratory of Edible Fungi Resources and Utilization (South) of Ministry of Agriculture, Shanghai, China.,National Engineering Research Center of Edible Fungi, Key Laboratory of Agricultural Genetics and Breeding of Shanghai, Shanghai, China.,Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Fengxian District, Shanghai, 201403, China
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Li HJ, He YL, Zhang DH, Yue TH, Jiang LX, Li N, Xu JW. Enhancement of ganoderic acid production by constitutively expressing Vitreoscilla hemoglobin gene in Ganoderma lucidum. J Biotechnol 2016; 227:35-40. [DOI: 10.1016/j.jbiotec.2016.04.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 04/05/2016] [Accepted: 04/08/2016] [Indexed: 11/26/2022]
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Xiao H, Zhong JJ. Production of Useful Terpenoids by Higher-Fungus Cell Factory and Synthetic Biology Approaches. Trends Biotechnol 2016; 34:242-255. [DOI: 10.1016/j.tibtech.2015.12.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/01/2015] [Accepted: 12/15/2015] [Indexed: 01/11/2023]
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Peng L, Li J, Liu Y, Xu Z, Wu JY, Ding Z, Gu Z, Zhang L, Shi G. Effects of mixed carbon sources on galactose and mannose content of exopolysaccharides and related enzyme activities in Ganoderma lucidum. RSC Adv 2016. [DOI: 10.1039/c6ra04798j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Further improvement in ganoderic acid production in static liquid culture of Ganoderma lucidum by integrating nitrogen limitation and calcium ion addition. Bioprocess Biosyst Eng 2015; 39:75-80. [DOI: 10.1007/s00449-015-1491-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 10/14/2015] [Indexed: 12/26/2022]
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Hadda M, Djamel C, Akila O. Production and Qualitative Analysis of Triterpenoids and Steroids of Ganoderma Species Harvested from Cork Oak Forest of North-Eastern Algeria. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/jm.2015.366.376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Li C, Shi L, Chen D, Ren A, Gao T, Zhao M. Functional analysis of the role of glutathione peroxidase (GPx) in the ROS signaling pathway, hyphal branching and the regulation of ganoderic acid biosynthesis in Ganoderma lucidum. Fungal Genet Biol 2015. [PMID: 26216672 DOI: 10.1016/j.fgb.2015.07.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Ganoderma lucidum, a hallmark of traditional Chinese medicine, has been widely used as a pharmacologically active compound. Although numerous research studies have focused on the pharmacological mechanism, fewer studies have explored the basic biological features of this species, restricting the further development and application of this important mushroom. Because of the ability of this mushroom to reduce and detoxify the compounds produced by various metabolic pathways, glutathione peroxidase (GPx) is one of the most important antioxidant enzymes with respect to ROS. Although studies in both animals and plants have suggested many important physiological functions of GPx, there are few systematic research studies concerning the role of this enzyme in fungi, particularly in large basidiomycetes. In the present study, we cloned the GPx gene and created GPx-silenced strains by the down-regulation of GPx gene expression using RNA interference. The results indicated an essential role for GPx in controlling the intracellular H2O2 content, hyphal branching, antioxidant stress tolerance, cytosolic Ca(2+) content and ganoderic acid biosynthesis. Further mechanistic investigation revealed that GPx is regulated by intracellular H2O2 levels and suggested that crosstalk occurs between GPx and intracellular H2O2. Moreover, evidence was obtained indicating that GPx regulation of hyphal branching via ROS might occur independently of the cytosolic Ca(2+) content. Further mechanistic investigation also revealed that the effects of GPx on ganoderic acid synthesis via ROS are regulated by the cytosolic Ca(2+) content. Taken together, these findings indicate that ROS have a complex influence on growth, development and secondary metabolism in fungi and that GPx serves an important function. The present study provides an excellent framework to identify GPx functions and highlights a role for this enzyme in ROS regulation.
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Affiliation(s)
- Chenyang Li
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, People's Republic of China
| | - Liang Shi
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, People's Republic of China
| | - Dongdong Chen
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, People's Republic of China
| | - Ang Ren
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, People's Republic of China
| | - Tan Gao
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, People's Republic of China
| | - Mingwen Zhao
- College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing 210095, Jiangsu, People's Republic of China.
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Baby S, Johnson AJ, Govindan B. Secondary metabolites from Ganoderma. PHYTOCHEMISTRY 2015; 114:66-101. [PMID: 25975187 DOI: 10.1016/j.phytochem.2015.03.010] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 03/02/2015] [Accepted: 03/28/2015] [Indexed: 06/04/2023]
Abstract
Ganoderma is a genus of medicinal mushrooms. This review deals with secondary metabolites isolated from Ganoderma and their biological significance. Phytochemical studies over the last 40years led to the isolation of 431 secondary metabolites from various Ganoderma species. The major secondary compounds isolated are (a) C30 lanostanes (ganoderic acids), (b) C30 lanostanes (aldehydes, alcohols, esters, glycosides, lactones, ketones), (c) C27 lanostanes (lucidenic acids), (d) C27 lanostanes (alcohols, lactones, esters), (e) C24, C25 lanostanes (f) C30 pentacyclic triterpenes, (g) meroterpenoids, (h) farnesyl hydroquinones (meroterpenoids), (i) C15 sesquiterpenoids, (j) steroids, (k) alkaloids, (l) prenyl hydroquinone (m) benzofurans, (n) benzopyran-4-one derivatives and (o) benzenoid derivatives. Ganoderma lucidum is the species extensively studied for its secondary metabolites and biological activities. Ganoderma applanatum, Ganoderma colossum, Ganoderma sinense, Ganoderma cochlear, Ganoderma tsugae, Ganoderma amboinense, Ganoderma orbiforme, Ganoderma resinaceum, Ganoderma hainanense, Ganoderma concinna, Ganoderma pfeifferi, Ganoderma neo-japonicum, Ganoderma tropicum, Ganoderma australe, Ganoderma carnosum, Ganoderma fornicatum, Ganoderma lipsiense (synonym G. applanatum), Ganoderma mastoporum, Ganoderma theaecolum, Ganoderma boninense, Ganoderma capense and Ganoderma annulare are the other Ganoderma species subjected to phytochemical studies. Further phytochemical studies on Ganoderma could lead to the discovery of hitherto unknown biologically active secondary metabolites.
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Affiliation(s)
- Sabulal Baby
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode, Thiruvananthapuram 695 562, Kerala, India.
| | - Anil John Johnson
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode, Thiruvananthapuram 695 562, Kerala, India
| | - Balaji Govindan
- Phytochemistry and Phytopharmacology Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Pacha-Palode, Thiruvananthapuram 695 562, Kerala, India
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Kües U, Nelson DR, Liu C, Yu GJ, Zhang J, Li J, Wang XC, Sun H. Genome analysis of medicinal Ganoderma spp. with plant-pathogenic and saprotrophic life-styles. PHYTOCHEMISTRY 2015; 114:18-37. [PMID: 25682509 DOI: 10.1016/j.phytochem.2014.11.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 11/03/2014] [Accepted: 11/06/2014] [Indexed: 06/04/2023]
Abstract
Ganoderma is a fungal genus belonging to the Ganodermataceae family and Polyporales order. Plant-pathogenic species in this genus can cause severe diseases (stem, butt, and root rot) in economically important trees and perennial crops, especially in tropical countries. Ganoderma species are white rot fungi and have ecological importance in the breakdown of woody plants for nutrient mobilization. They possess effective machineries of lignocellulose-decomposing enzymes useful for bioenergy production and bioremediation. In addition, the genus contains many important species that produce pharmacologically active compounds used in health food and medicine. With the rapid adoption of next-generation DNA sequencing technologies, whole genome sequencing and systematic transcriptome analyses become affordable approaches to identify an organism's genes. In the last few years, numerous projects have been initiated to identify the genetic contents of several Ganoderma species, particularly in different strains of Ganoderma lucidum. In November 2013, eleven whole genome sequencing projects for Ganoderma species were registered in international databases, three of which were already completed with genomes being assembled to high quality. In addition to the nuclear genome, two mitochondrial genomes for Ganoderma species have also been reported. Complementing genome analysis, four transcriptome studies on various developmental stages of Ganoderma species have been performed. Information obtained from these studies has laid the foundation for the identification of genes involved in biological pathways that are critical for understanding the biology of Ganoderma, such as the mechanism of pathogenesis, the biosynthesis of active components, life cycle and cellular development, etc. With abundant genetic information becoming available, a few centralized resources have been established to disseminate the knowledge and integrate relevant data to support comparative genomic analyses of Ganoderma species. The current review carries out a detailed comparison of the nuclear genomes, mitochondrial genomes and transcriptomes from several Ganoderma species. Genes involved in biosynthetic pathways such as CYP450 genes and in cellular development such as matA and matB genes are characterized and compared in detail, as examples to demonstrate the usefulness of comparative genomic analyses for the identification of critical genes. Resources needed for future data integration and exploitation are also discussed.
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Affiliation(s)
- Ursula Kües
- University of Göttingen, Büsgen-Institute, Department for Molecular Wood Biotechnology and Technical Mycology, Büsgenweg 2, D-37077 Göttingen, Germany
| | - David R Nelson
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, 858 Madison Ave., Memphis, TN 38163, USA
| | - Chang Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, China.
| | - Guo-Jun Yu
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), Wuhan University, Wuhan, China
| | - Jianhui Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Jianqin Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Xin-Cun Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, China
| | - Hui Sun
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), Wuhan University, Wuhan, China
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Cell Factories of Higher Fungi for Useful Metabolite Production. BIOREACTOR ENGINEERING RESEARCH AND INDUSTRIAL APPLICATIONS I 2015; 155:199-235. [DOI: 10.1007/10_2015_335] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Zhang J, Zhong JJ, Geng A. Improvement of ganoderic acid production by fermentation of Ganoderma lucidum with cellulase as an elicitor. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.06.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ren A, Li XB, Miao ZG, Shi L, Jaing AL, Zhao MW. Transcript and metabolite alterations increase ganoderic acid content in Ganoderma lucidum using acetic acid as an inducer. Biotechnol Lett 2014; 36:2529-36. [DOI: 10.1007/s10529-014-1636-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Accepted: 08/06/2014] [Indexed: 12/31/2022]
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Zhou JS, Ji SL, Ren MF, He YL, Jing XR, Xu JW. Enhanced accumulation of individual ganoderic acids in a submerged culture of Ganoderma lucidum by the overexpression of squalene synthase gene. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.06.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Effect of nitrogen and temperature on the transcription of an ACAT gene in Isochrysis galbana. Mol Biol Rep 2014; 41:7235-40. [PMID: 25055977 DOI: 10.1007/s11033-014-3608-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 07/12/2014] [Indexed: 10/25/2022]
Abstract
Thiolases are functionally divided into two groups: 3-ketoacyl-CoA thiolase and acetoacetyl-CoA thiolase (ACAT). Acetoacetyl-CoA thiolase plays a key role in the mevalonate pathway. In this study, a novel gene, IgACAT, which encodes ACAT was cloned from Isochrysis galbana and characterized. The cDNA of IgACAT was 1551 bp in length, consisting of an open reading frame of 1173 bp, a 5' untranslated region of 69 bp and a 3' untranslated region of 309 bp. The deduced amino acid sequence of IgACAT was 390 amino acid residues in length with a predicted molecular weight of 53.59 kDa and an isoelectric point of pH 9.04. The triterpenes content and the expression of IgACAT under nitrogen and temperature stress were analyzed. When I. galbana was treated with excessive nitrogen and at 35 °C, respectively, both the triterpenes content and the abundance of IgACAT gene transcript increased. Our findings will facilitate the regulation of gene expression and genetic modification of the triterpenes synthesis pathway of I. galbana.
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40
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Xu YN, Xia XX, Zhong JJ. Induction of ganoderic acid biosynthesis by Mn2+ in static liquid cultivation of Ganoderma lucidum. Biotechnol Bioeng 2014; 111:2358-65. [PMID: 24870062 DOI: 10.1002/bit.25288] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 11/07/2022]
Abstract
Metal ions affect cell physiology and metabolism significantly, but the role of Mn(2+) in the secondary metabolism of mushrooms is yet unclear. In static liquid cultivation of Ganoderma lucidum for producing antitumor ganoderic acids (GAs), the Mn(2+) addition was performed. Addition of 10 mM Mn(2+) at the start of the static liquid cultivation resulted in 2.2-fold improvement of total GAs production. The expression levels of GA biosynthetic and Ca(2+) sensors' genes were up-regulated with Mn(2+) induction while down-regulated by adding cyclosporin A (calcineurin inhibitor), suggesting that higher GA production might result from calcineurin signal regulation. Intracellular Ca(2+) imaging and calcineurin inhibitor study revealed that addition of Mn(2+) led to Ca(2+) influx from medium to the cells to trigger calcineurin signals. Mn(2+) addition was therefore an efficient induction strategy for improving GAs production, whose regulation mechanism was via calcineurin signaling transduction.
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Affiliation(s)
- Yi-Ning Xu
- State Key Laboratory of Microbial Metabolism and Laboratory of Molecular Biochemical Engineering, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dong-Chuan Road, Shanghai, 200240, China
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Enhanced Production of Ganoderic Acids and Cytotoxicity ofGanoderma lucidumUsing Solid-Medium Culture. Biosci Biotechnol Biochem 2014; 76:1529-34. [DOI: 10.1271/bbb.120270] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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42
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Screening of Ganoderma strains with high polysaccharides and ganoderic acid contents and optimization of the fermentation medium by statistical methods. Bioprocess Biosyst Eng 2014; 37:1789-97. [DOI: 10.1007/s00449-014-1152-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/07/2014] [Indexed: 11/26/2022]
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Abstract
Ganoderma species is known as a functional mushroom used in many Asian countries. Triterpenoids, ganoderic acids, and lucidenic acids have been isolated from Ganoderma species (Ganodermataceae family), such as Ganoderma lucidum. Triterpenoids have been investigated for their biological activities, including antibacterial, antiviral, antitumor, antiosteoclastic differentiation activity, anti-HIV-1, hepatoprotection, antioxidation, antihypertension, cholesterol reduction, and antiaggregation functions. In this chapter, the sources, biosynthesis, biological functions (including cell cytotoxicity, cell apoptosis, cell cycle arrest, anti-invasion, autophagy, anti-inflammation, antiosteoclastogenesis, antiasthma, and antihepatitis B activity), and pharmacokinetics of lucidenic acids and ganoderic acids are considered in detail here. This chapter briefly summarizes the multiple functions of lucidenic acids and ganoderic acids and their potential for fighting against human diseases.
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Affiliation(s)
- Chin-Lin Hsu
- School of Nutrition, Chung Shan Medical University, Taichung, Taiwan; Department of Nutrition, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Gow-Chin Yen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan; Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan.
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Mu D, Li C, Zhang X, Li X, Shi L, Ren A, Zhao M. Functions of the nicotinamide adenine dinucleotide phosphate oxidase family inGanoderma lucidum: an essential role in ganoderic acid biosynthesis regulation, hyphal branching, fruiting body development, and oxidative-stress resistance. Environ Microbiol 2013; 16:1709-28. [DOI: 10.1111/1462-2920.12326] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/01/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Dashuai Mu
- College of Life Sciences; Nanjing Agricultural University; Nanjing China
| | - Chenyang Li
- College of Life Sciences; Nanjing Agricultural University; Nanjing China
| | - Xuchen Zhang
- College of Life Sciences; Nanjing Agricultural University; Nanjing China
| | - Xiongbiao Li
- College of Life Sciences; Nanjing Agricultural University; Nanjing China
| | - Liang Shi
- College of Life Sciences; Nanjing Agricultural University; Nanjing China
| | - Ang Ren
- College of Life Sciences; Nanjing Agricultural University; Nanjing China
| | - Mingwen Zhao
- College of Life Sciences; Nanjing Agricultural University; Nanjing China
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The elicitation effect of pathogenic fungi on trichodermin production by Trichoderma brevicompactum. ScientificWorldJournal 2013; 2013:607102. [PMID: 24385883 PMCID: PMC3872148 DOI: 10.1155/2013/607102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 11/19/2013] [Indexed: 01/07/2023] Open
Abstract
The effects of six species of phytopathogenic fungi mycelia as elicitors on trichodermin yield by Trichoderma brevicompactum were investigated. Neither nonviable nor viable mycelia of Botrytis cinerea, Alternaria solani, Colletotrichum lindemuthianum, and Thanatephorus cucumeris demonstrated any elicitation on the accumulation of trichodermin. However, the production of trichodermin was increased by the presence of viable/nonviable Rhizoctonia solani and Fusarium oxysporum mycelia. The strongest elicitation effect was found at the presence of nonviable R. solani. At the presence of nonviable R. solani, the maximum yield of trichodermin (144.55 mg/L) was significantly higher than the Control (67.8 mg/L), and the cultivation time to obtain the maximum yield of trichodermin decreased from 72 h to 60 h. No difference of trichodermin accumulation was observed by changing the concentration of nonviable R. solani from 0.1 to 1.6 g/L. It was observed that the optimum time for adding nonviable R. solani is immediately after inoculation. The diameter of T. brevicompactum mycelial globule after 72 h cultivation with nonviable R. solani elicitor was smaller than that of the Control.
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Zhang WX, Zhong JJ. Oxygen limitation improves ganoderic acid biosynthesis in submerged cultivation of Ganoderma lucidum. BIOTECHNOL BIOPROC E 2013. [DOI: 10.1007/s12257-013-0148-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ren A, Li MJ, Shi L, Mu DS, Jiang AL, Han Q, Zhao MW. Profiling and quantifying differential gene transcription provide insights into ganoderic acid biosynthesis in Ganoderma lucidum in response to methyl jasmonate. PLoS One 2013; 8:e65027. [PMID: 23762280 PMCID: PMC3676390 DOI: 10.1371/journal.pone.0065027] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 04/21/2013] [Indexed: 01/09/2023] Open
Abstract
Ganoderma lucidum is a mushroom with traditional medicinal properties that has been widely used in China and other countries in Eastern Asia. Ganoderic acids (GA) produced by G. lucidum exhibit important pharmacological activities. Previous studies have demonstrated that methyl jasmonate (MeJA) is a potent inducer of GA biosynthesis and the expression of genes involved in the GA biosynthesis pathway in G. lucidum. To further explore the mechanism of GA biosynthesis, cDNA-Amplified Fragment Length Polymorphism (cDNA-AFLP) was used to identify genes that are differentially expressed in response to MeJA. Using 64 primer combinations, over 3910 transcriptionally derived fragments (TDFs) were obtained. Reliable sequence data were obtained for 390 of 458 selected TDFs. Ninety of these TDFs were annotated with known functions through BLASTX searching the GenBank database, and 12 annotated TDFs were assigned into secondary metabolic pathways by searching the KEGGPATHWAY database. Twenty-five TDFs were selected for qRT-PCR analysis to confirm the expression patterns observed with cDNA-AFLP. The qRT-PCR results were consistent with the altered patterns of gene expression revealed by the cDNA-AFLP technique. Additionally, the transcript levels of 10 genes were measured at the mycelium, primordia, and fruiting body developmental stages of G. lucidum. The greatest expression levels were reached during primordia for all of the genes except cytochrome b2 reached its highest expression level in the mycelium stage. This study not only identifies new candidate genes involved in the regulation of GA biosynthesis but also provides further insight into MeJA-induced gene expression and secondary metabolic response in G. lucidum.
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Affiliation(s)
- Ang Ren
- Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing, Jiangsu, P.R. China
| | - Meng-Jiao Li
- Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing, Jiangsu, P.R. China
| | - Liang Shi
- Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing, Jiangsu, P.R. China
| | - Da-Shuai Mu
- Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing, Jiangsu, P.R. China
| | - Ai-Liang Jiang
- Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing, Jiangsu, P.R. China
| | - Qin Han
- Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing, Jiangsu, P.R. China
| | - Ming-Wen Zhao
- Microbiology Department, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Nanjing, Jiangsu, P.R. China
- * E-mail:
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Fang X, Shi L, Ren A, Jiang AL, Wu FL, Zhao MW. The cloning, characterization and functional analysis of a gene encoding an acetyl-CoA acetyltransferase involved in triterpene biosynthesis in Ganoderma lucidum. MYCOSCIENCE 2013. [DOI: 10.1016/j.myc.2012.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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50
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Xu YN, Xia XX, Zhong JJ. Induced effect of Na+on ganoderic acid biosynthesis in static liquid culture ofGanoderma lucidumvia calcineurin signal transduction. Biotechnol Bioeng 2013; 110:1913-23. [DOI: 10.1002/bit.24852] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Revised: 01/11/2013] [Accepted: 01/14/2013] [Indexed: 11/08/2022]
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