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Fan H, Ge F, Wu T, Liu Y, Tian L, Liu Y, Xiang T, Yu H, Shi L, He Q, Ren A, Jiang A. The AMP-Activated Protein Kinase (AMPK) Positively Regulates Lysine Biosynthesis Induced by Citric Acid in Flammulina filiformis. J Fungi (Basel) 2023; 9:340. [PMID: 36983508 PMCID: PMC10057554 DOI: 10.3390/jof9030340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023] Open
Abstract
Flammulina filiformis, the most produced edible mushroom species in China, is rich in lysine. Further enhancing its lysine biosynthesis is vital for improving its quality in industrialized cultivation. Citric acid induction significantly increases both the biomass and growth rate of F. filiformis hyphae, as well as the lysine content. The genes encoding enzymes in the lysine biosynthesis pathway were detected under the optimal induction, revealing that the expression levels of hcs, hac, and hah were 2.67, 1.97, and 1.90 times greater, respectively, relative to the control, whereas no significant difference was seen for hdh, aat, sr, and shd, and the expression of aar decreased. Furthermore, the transcriptional levels of Ampk, GCN2, GCN4, and TOR were found significantly upregulated, with the most upregulated, Ampk, reaching a level 42.68 times greater than that of the control, while the phosphorylation of AMPK rose by nearly 54%. In AMPK-silencing strains under the optimal induction, however, the phosphorylation increment dropped to about 16% and the lysine content remained at the same level as in the WT. Thus, AMPK is presented as the critical intermediary in citric acid's regulation of lysine biosynthesis in F. filiformis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Ang Ren
- Sanya Institute of Nanjing Agricultural University, Key Laboratory of Agricultural Environmental Microbiology Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Ailiang Jiang
- Sanya Institute of Nanjing Agricultural University, Key Laboratory of Agricultural Environmental Microbiology Ministry of Agriculture, Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
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Rai LS, Wijlick LV, Bougnoux ME, Bachellier-Bassi S, d'Enfert C. Regulators of commensal and pathogenic life-styles of an opportunistic fungus-Candida albicans. Yeast 2021; 38:243-250. [PMID: 33533498 DOI: 10.1002/yea.3550] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/12/2022] Open
Abstract
The yeast Candida albicans is primarily a commensal of humans that colonizes the mucosal surfaces of the gastrointestinal and genital tracts. Yet, C. albicans can under certain circumstances undergo a shift from commensalism to pathogenicity. This transition is governed by fungal factors such as morphological transitions, environmental cues for instance relationships with gut microbiota and the host immune system. C. albicans utilizes distinct sets of regulatory programs to colonize or infect its host and to evade the host defense systems. Moreover, an orchestrated iron acquisition mechanism operates to adapt to specific niches with variable iron availability. Studies on regulatory networks and morphogenesis of these two distinct modes of C. albicans growth, suggest that both yeast and hyphal forms exist in both growth patterns and the regulatory circuits are inter-connected. Here, we summarize current knowledge about C. albicans commensal-to-pathogen shift, its regulatory elements and their contribution to human disease.
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Affiliation(s)
- Laxmi Shanker Rai
- Unité Biologie et Pathogénicité Fongiques, Institut Pasteur, USC2019 INRA, Paris, France
| | - Lasse Van Wijlick
- Unité Biologie et Pathogénicité Fongiques, Institut Pasteur, USC2019 INRA, Paris, France
| | - Marie-Elisabeth Bougnoux
- Unité Biologie et Pathogénicité Fongiques, Institut Pasteur, USC2019 INRA, Paris, France.,Unité de Parasitologie-Mycologie, Service de Microbiologie Clinique, Hôpital Necker-Enfants-Malades, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | | | - Christophe d'Enfert
- Unité Biologie et Pathogénicité Fongiques, Institut Pasteur, USC2019 INRA, Paris, France
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Kong L, Liu G, Deng M, Lian Z, Han Y, Sun B, Guo Y, Liu D, Li Y. Growth retardation-responsive analysis of mRNAs and long noncoding RNAs in the liver tissue of Leiqiong cattle. Sci Rep 2020; 10:14254. [PMID: 32868811 PMCID: PMC7459292 DOI: 10.1038/s41598-020-71206-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 08/10/2020] [Indexed: 12/15/2022] Open
Abstract
As an important type of non-coding RNA molecule, long non-coding RNAs (lncRNAs) have varied roles in many biological processes, and have been studied extensively over the past few years. However, little is known about lncRNA-mediated regulation during cattle growth and development. Therefore, in the present study, RNA sequencing was used to determine the expression level of mRNAs and lncRNAs in the liver of adult Leiqiong cattle under the condition of growth retardation and normal growth. We totally detected 1,124 and 24 differentially expressed mRNAs and lncRNAs, respectively. The differentially expressed mRNAs were mainly associated with growth factor binding, protein K63-linked ubiquitination and cellular protein metabolic process; additionally, they were significantly enriched in the growth and development related pathways, including PPAR signaling pathway, vitamin B6 metabolism, glyoxylate and dicarboxylate metabolism. Combined analysis showed that the co-located differentially expressed lncRNA Lnc_002583 might positively influence the expression of the corresponding genes IFI44 and IFI44L, exerting co-regulative effects on Leiqiong cattle growth and development. Thus, we made the hypothesis that Lnc_002583, IFI44 and IFI44L might function synergistically to regulate the growth of Leiqiong cattle. This study provides a catalog of Leiqiong cattle liver mRNAs and lncRNAs, and will contribute to a better understanding of the molecular mechanism underlying growth regulataion.
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Affiliation(s)
- Lingxuan Kong
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China
| | - Guangbin Liu
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China
| | - Ming Deng
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China
| | - Zhiquan Lian
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China
| | - Yinru Han
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China
| | - Baoli Sun
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China
| | - Yongqing Guo
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China
| | - Dewu Liu
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China.
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China.
| | - Yaokun Li
- College of Animal Science, South China Agricultural University, Guangzhou, 510642, GD, China.
- National Local Joint Engineering Research Center of Livestock and Poutry, South China Agricultural University, Guangzhou, 510642, GD, China.
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Yin H, Dong JJ, Yu JH, Zhong C, Liu LP, Liu M, Yang PF, Hao JG, Jia SR. Intracellular metabolite profiling of industrial yeast and the synthesis of flavour compounds in beer. JOURNAL OF THE INSTITUTE OF BREWING 2017. [DOI: 10.1002/jib.436] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hua Yin
- State Key Laboratory of Biological Fermentation Engineering of Beer, Tsingtao Brewery Co Ltd, R&D Ctr; Qingdao 266101 Shandong People's Republic of China
| | - Jian-Jun Dong
- State Key Laboratory of Biological Fermentation Engineering of Beer, Tsingtao Brewery Co Ltd, R&D Ctr; Qingdao 266101 Shandong People's Republic of China
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education); Tianjin University of Science and Technology; Tianjin 300457 People's Republic of China
| | - Jun-Hong Yu
- State Key Laboratory of Biological Fermentation Engineering of Beer, Tsingtao Brewery Co Ltd, R&D Ctr; Qingdao 266101 Shandong People's Republic of China
| | - Cheng Zhong
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education); Tianjin University of Science and Technology; Tianjin 300457 People's Republic of China
| | - Ling-Pu Liu
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education); Tianjin University of Science and Technology; Tianjin 300457 People's Republic of China
| | - Miao Liu
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education); Tianjin University of Science and Technology; Tianjin 300457 People's Republic of China
| | - Pan-Fei Yang
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education); Tianjin University of Science and Technology; Tianjin 300457 People's Republic of China
| | - Jun-Guang Hao
- State Key Laboratory of Biological Fermentation Engineering of Beer, Tsingtao Brewery Co Ltd, R&D Ctr; Qingdao 266101 Shandong People's Republic of China
| | - Shi-Ru Jia
- Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education); Tianjin University of Science and Technology; Tianjin 300457 People's Republic of China
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