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Yao D, Ma Y, Ran J, Wang J, Kües U, Liu J, Zhou D, Zhang X, Fang Z, Xiao Y. Enhanced extracellular production of laccase in Coprinopsis cinerea by silencing chitinase gene. Appl Microbiol Biotechnol 2024; 108:324. [PMID: 38713211 DOI: 10.1007/s00253-024-13164-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/27/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
Laccase, a copper-containing polyphenol oxidase, is an important green biocatalyst. In this study, Laccase Lcc5 was homologous recombinantly expressed in Coprinopsis cinerea and a novel strategy of silencing chitinase gene expression was used to enhance recombinant Lcc5 extracellular yield. Two critical chitinase genes, ChiEn1 and ChiE2, were selected by analyzing the transcriptome data of C. cinerea FA2222, and their silent expression was performed by RNA interference (RNAi). It was found that silencing either ChiEn1 or ChiE2 reduced sporulation and growth rate, and increased cell wall sensitivity, but had no significant effect on mycelial branching. Among them, the extracellular laccase activity of the ChiE2-silenced engineered strain Cclcc5-antiChiE2-5 and the control Cclcc5-13 reached the highest values (38.2 and 25.5 U/mL, respectively) at 250 and 150 rpm agitation speeds, corresponding to productivity of 0.35 and 0.19 U/mL·h, respectively, in a 3-L fermenter culture. Moreover, since Cclcc5-antiChiE2-5 could withstand greater shear forces, its extracellular laccase activity was 2.6-fold higher than that of Cclcc5-13 when the agitation speed was all at 250 rpm. To our knowledge, this is the first report of enhanced recombinant laccase production in C. cinerea by silencing the chitinase gene. This study will pave the way for laccase industrial production and accelerate the development of a C. cinerea high-expression system. KEY POINTS: • ChiEn1 and ChiE2 are critical chitinase genes in C. cinerea FA2222 genome. • Chitinase gene silencing enhanced the tolerance of C. cinerea to shear forces. • High homologous production of Lcc5 is achieved by fermentation in a 3-L fermenter.
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Affiliation(s)
- Dongbang Yao
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Yuting Ma
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China
| | - Jie Ran
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China
| | - Jiaxiu Wang
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China
| | - Ursula Kües
- Molecular Wood Biotechnology and Technical Mycology, Büsgen-Institute and Goettingen Center for Molecular Biosciences, University of Goettingen, Büsgenweg 2, 37077, Goettingen, Germany
| | - Juanjuan Liu
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Danya Zhou
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Xuecheng Zhang
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei, 230601, China.
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China.
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China.
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, Hefei, 230601, China.
- Anhui Key Laboratory of Biocatalysis and Modern Biomanufacturing, Hefei, 230601, China.
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China.
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Pan F, Fu W, Zhang B, Han M, Xie H, Yi Q, Qian W, Cui J, Cao M, Li Y, Jia Y, Fang F, Ling Y, Li Y, Liu Y. Effects of Vaccination against Recombinant FSH or LH Receptor Subunits on Gonadal Development and Functioning Male Rats. Vet Sci 2024; 11:176. [PMID: 38668443 PMCID: PMC11054695 DOI: 10.3390/vetsci11040176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/29/2024] Open
Abstract
Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) play key roles in regulating testosterone secretion and spermatogenesis in male mammals, respectively, and they maintain the fertility of male animals by binding to their corresponding receptors. We designed and prepared a recombinant LH receptor (LHR) subunit vaccine and a recombinant FSH receptor (FSHR) subunit vaccine and used male Sprague Dawley (SD) rats as a model to examine their effects on testicular development, spermatogenesis, and testosterone secretion in prepubertal and pubertal mammals. Both vaccines (LHR-DTT and FSHR-DTT) significantly decreased the serum testosterone level in prepubertal rats (p < 0.05) but had no effect on the testosterone secretion in pubertal rats; both vaccines decreased the number of cell layers in the seminiferous tubules and reduced spermatogenesis in prepubertal and pubertal rats. Subunit vaccine FSHR-DTT decreased the sperm density in the epididymis in both prepubertal and pubertal rats (p < 0.01) and lowered testicular index and sperm motility in pubertal rats (p < 0.05), whereas LHR-DTT only reduced the sperm density in the epididymis in pubertal rats (p < 0.05). These results indicate that the FSHR subunit vaccine may be a promising approach for immunocastration, but it still needs improvements in effectiveness.
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Affiliation(s)
- Fuqiang Pan
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Wanzhen Fu
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Bochao Zhang
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Mengdi Han
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Huihui Xie
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Qing Yi
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Wei Qian
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Jiankun Cui
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Meng Cao
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Yanqiuhong Li
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Yuke Jia
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
| | - Fugui Fang
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
- Anhui Provinciale Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
- Linquan County Modern Agriculture Technology Cooperation and Extension Service Center, Fuyang 236000, China
| | - Yinghui Ling
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
- Anhui Provinciale Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
- Linquan County Modern Agriculture Technology Cooperation and Extension Service Center, Fuyang 236000, China
| | - Yunsheng Li
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
- Anhui Provinciale Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
- Linquan County Modern Agriculture Technology Cooperation and Extension Service Center, Fuyang 236000, China
| | - Ya Liu
- Departmet of Veterinary Medicine, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, China; (F.P.); (W.F.); (B.Z.); (M.H.); (H.X.); (Q.Y.); (W.Q.); (J.C.); (M.C.); (Y.L.); (Y.J.); (F.F.); (Y.L.); (Y.L.)
- Anhui Provinciale Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
- Linquan County Modern Agriculture Technology Cooperation and Extension Service Center, Fuyang 236000, China
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Liu GQ, Yang Y, Zhang XL, Li HH, Yu PC, Gao MR, Yu SH. Porous Tellurium-Doped Ruthenium Dioxide Nanotubes for Enhanced Acidic Water Oxidation. Small 2024; 20:e2306914. [PMID: 38041488 DOI: 10.1002/smll.202306914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/23/2023] [Indexed: 12/03/2023]
Abstract
Electrocatalysts with high activity and durability for acidic oxygen evolution reaction (OER) play a crucial role in achieving cost-effective hydrogen production via proton exchange membrane water electrolysis. A novel electrocatalyst, Te-doped RuO2 (Te-RuO2) nanotubes, synthesized using a template-directed process, which significantly enhances the OER performance in acidic media is reported. The Te-RuO2 nanotubes exhibit remarkable OER activity in acidic media, requiring an overpotential of only 171 mV to achieve an anodic current density of 10 mA cm-2. Furthermore, they maintain stable chronopotentiometric performance under 10 mA cm-2 in acidic media for up to 50 h. Based on the experimental results and density functional calculations, this significant improvement in OER performance to the synergistic effect of large specific surface area and modulated electronic structure resulting from the doping of Te cations is attributed.
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Affiliation(s)
- Guo-Qiang Liu
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, New Cornerstone Science Laboratory, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Yuan Yang
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, New Cornerstone Science Laboratory, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Xiao-Long Zhang
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, New Cornerstone Science Laboratory, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Hui-Hui Li
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, New Cornerstone Science Laboratory, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Peng-Cheng Yu
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, New Cornerstone Science Laboratory, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Min-Rui Gao
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, New Cornerstone Science Laboratory, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Shu-Hong Yu
- Department of Chemistry, Institute of Biomimetic Materials & Chemistry, New Cornerstone Science Laboratory, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
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Hu C, Yuan X, Zhao R, Hong B, Chen C, Zhu Q, Zheng Y, Hu J, Yuan Y, Wu Z, Zhang J, Tang C. Scale-Up Preparation of Manganese-Iron Prussian Blue Nanozymes as Potent Oral Nanomedicines for Acute Ulcerative Colitis. Adv Healthc Mater 2024:e2400083. [PMID: 38447228 DOI: 10.1002/adhm.202400083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/04/2024] [Indexed: 03/08/2024]
Abstract
Prussian blue (PB) nanozymes are demonstrated as effective therapeutics for ulcerative colitis (UC), yet an unmet practical challenge remains in the scalable production of these nanozymes and uncertainty over their efficacy. With a novel approach, a series of porous manganese-iron PB (MnPB) colloids, which are shown to be efficient scavengers for reactive oxygen species (ROS) including hydroxyl radical, superoxide anion, and hydrogen peroxide, are prepared. In vitro cellular experiments confirm the capability of the nanozyme to protect cells from ROS attack. In vivo, the administration of MnPB nanozyme through gavage at a dosage of 10 mg kg-1 per day for three doses in total potently ameliorates the pathological symptoms of acute UC in a murine model, resulting in mitigated inflammatory responses and improved viability rate. Significantly, the nanozyme produced at a large scale can be achieved at an unprecedented yield weighting ≈11 g per batch of reaction, demonstrating comparable anti-ROS activities and treatment efficacy to its small-scale counterpart. This work represents the first demonstration of the scale-up preparation of PB analog nanozymes for UC without compromising treatment efficacy, laying the foundation for further testing of these nanozymes on larger animals and promising clinical translation.
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Affiliation(s)
- Chengyun Hu
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
| | - Xue Yuan
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Ronghua Zhao
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Biao Hong
- College & Hospital of Stomatology, Anhui Provincial Key Laboratory of Oral Diseases Research, Anhui Medical University, Hefei, 230032, China
| | - Chuang Chen
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Qingjun Zhu
- Anhui Provincial Key Laboratory of High Magnetic Resonance Image, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Yanmin Zheng
- Anhui Provincial Key Laboratory of High Magnetic Resonance Image, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
| | - Jinming Hu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yue Yuan
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Zhengyan Wu
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Jia Zhang
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Chaoliang Tang
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
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Li X, Mu L, Zhang Y, Zhu Z, Xiao Y, Fang Z. Sphingomicrobium clamense sp. nov., Isolated from Sediment of Clam Island Beach in China. Curr Microbiol 2024; 81:104. [PMID: 38393394 DOI: 10.1007/s00284-024-03639-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 02/13/2024] [Indexed: 02/25/2024]
Abstract
A Gram-stain-negative, non-flagellated, aerobic, ovoid or rod-shaped bacterium with motility, designated B8T, was isolated from the sediment of Clam Island beach, Liaoning province, China. The optimum growth of strain B8T occurred at 35 oC, pH 7.0, and in the presence of 4.0-5.0% (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain B8T formed a distinct lineage within the genus Sphingomicrobium and was closely related to Sphingomicrobium nitratireducens O-35T (98.3% sequence similarity), Sphingomicrobium aestuariivivum KCTC 42286T (96.9%), and Sphingomicrobium astaxanthinifaciens JCM 18551T (96.5%). The digital DNA-DNA hybridization and average nucleotide identity values between strain B8T and closely related strains were lower than 21.0% and 78.0%, much lower than the cutoff values of 70.0% and 95.0%, respectively, for bacterial species delineation. The dominant respiratory quinone of strain B8T was ubiquinone-10. The major fatty acids were Sum In Feature 8 (C18:1ω7c and/or C18:1ω6c), Sum In Feature 3 (C16 : 1ω7c and/or C16 : 1ω6c), C17:1ω6c, C18:1 2-OH, and C16:0. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, sphingoglycolipid, glycolipids, and four unknown polar lipids. The DNA G + C content of strain B8T was 63.9%. Based on the phenotypic, phylogenetic, and chemotaxonomic analyses, strain B8T is considered a new species of Sphingomicrobium, for which the name Sphingomicrobium clamense sp. nov. is proposed. The type strain is B8T (= CGMCC 1.19486T = KCTC 92052T).
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Affiliation(s)
- Xing Li
- School of Life Sciences, Anhui University, Hefei, Anhui, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, Anhui, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, Anhui, 230601, China
| | - Lulu Mu
- School of Life Sciences, Anhui University, Hefei, Anhui, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, Anhui, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, Anhui, 230601, China
| | - Yanfeng Zhang
- Institute of Soil and Fertilizer, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Zimu Zhu
- School of Life Sciences, Anhui University, Hefei, Anhui, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, Anhui, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, Anhui, 230601, China
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, Hefei, Anhui, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, Anhui, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, Anhui, 230601, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei, Anhui, 230601, China.
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, Anhui, 230601, China.
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, Anhui, 230601, China.
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Zhang Y, Yuan X, Guo X, Xu H, Zhang D, Wu Z, Zhang J. All-in-One Zinc-Doped Prussian Blue Nanozyme for Efficient Capture, Separation, and Detection of Copper Ion (Cu 2+ ) in Complicated Matrixes. Small 2024; 20:e2306961. [PMID: 37803466 DOI: 10.1002/smll.202306961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Indexed: 10/08/2023]
Abstract
Copper is a vital micronutrient for lives and an important ingredient for bactericides and fungicides. Given its indispensable biological and agricultural roles, there is an urgent need to develop simple, affordable, and reliable methods for detecting copper in complicated matrixes, particularly in underdeveloped regions where costly standardized instruments and sample dilution procedures hinder progress. The findings that zinc-doped Prussian blue nanoparticle (ZnPB NP) exhibits exceptional efficiency in capturing and isolating copper ions, and accelerates the generation of dissolved oxygen in a solution of H2 O2 with remarkable sensitivity and selectivity, the signal of which displays a positive correlation with the copper level due to the copper-enhanced catalase-like activity of ZnPB NP, are presented. Consequently, the ZnPB NP serves as an all-in-one sensor for copper ion. The credibility of the method for copper assays in human urine and farmland soil is shown by comparing it to the standard instrumentation, yielding a coefficient of correlation (R2 = 0.9890), but the cost is dramatically reduced. This ZnPB nanozyme represents a first-generation probe for copper ion in complicated matrixes, laying the groundwork for the future development of a practical copper sensor that can be applied in resource-constrained environments.
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Affiliation(s)
- Ying Zhang
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma'anshan, 243002, P. R. China
| | - Xue Yuan
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- School of Chemistry and Materials Science, University of Science, and Technology of China, Hefei, 230026, P. R. China
| | - Xinyue Guo
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- School of Chemistry and Materials Science, University of Science, and Technology of China, Hefei, 230026, P. R. China
| | - Huan Xu
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Dongxin Zhang
- Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma'anshan, 243002, P. R. China
| | - Zhengyan Wu
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
| | - Jia Zhang
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
- Key Laboratory of Environmental Toxicology and Pollution Control Technology of Anhui Province Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, P. R. China
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He X, Xu J, Liu Y, Guo X, Wei W, Xing C, Zhang H, Wang H, Liu M, Jiang R. Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA. Animals (Basel) 2024; 14:402. [PMID: 38338044 PMCID: PMC10854493 DOI: 10.3390/ani14030402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/09/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Inosine monophosphate (IMP) is a substance that enhances flavor and plays a crucial role in the umami taste of chicken muscle. It is also an influential factor in determining chicken's economic value. However, the molecular regulatory network underlying the IMP content in muscle remains unclear. To address this issue, we performed transcriptome sequencing on 20 pectoralis major muscle samples from 120-day-old Guangde feathered-leg chicken and used weighted gene co-expression network analysis (WGCNA) to identify key regulatory factors that influence IMP content. The weighted gene co-expression network was constructed using a total of 16,344 genes, leading to the identification of 20 co-expression gene modules. Among the modules that were identified, it was observed that the purple module (R = -0.51, p = 0.02) showed a significant negative correlation with the IMP content. This suggests that the genes within the purple module had the ability to regulate the IMP content. A total of 68 hub genes were identified in the purple module through gene significance (GS) > 0.2 and module membership (MM) > 0.8. The STRING database was used for a protein-protein interaction (PPI) network of hub genes. Furthermore, troponin I type 1 (TNNI1), myozenin 2 (MYOZ2), myosin light chain 2 regulatory cardiac slow (MYL2), and myosin light chain 3 regulatory cardiac slow (MYL3) involved in the "ATP-dependent activity", "cAMP signaling pathway" and "cGMP-PKG signaling pathway" were identified as central regulators that contribute to IMP content. These results offer valuable information into the gene expression and regulation that affects IMP content in muscle.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Runshen Jiang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China; (X.H.); (J.X.); (Y.L.); (X.G.); (W.W.); (C.X.); (H.Z.); (H.W.); (M.L.)
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Ye J, Yan X, Zhang W, Lu J, Xu S, Li X, Qin P, Gong X, Liu Y, Ling Y, Li Y, Zhang Y, Fang F. Integrative proteomic and phosphoproteomic analysis in the female goat hypothalamus to study the onset of puberty. BMC Genomics 2023; 24:621. [PMID: 37853328 PMCID: PMC10583467 DOI: 10.1186/s12864-023-09705-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 09/28/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Puberty marks the end of childhood and achieve sexual maturation and fertility. The role of hypothalamic proteins in regulating puberty onset is unclear. We performed a comprehensive differential proteomics and phosphoproteomics analysis in prepubertal and pubertal goats to determine the roles of hypothalamic proteins and phosphoproteins during the onset of puberty. RESULTS We used peptide and posttranslational modifications peptide quantification and statistical analyses, and identified 69 differentially expressed proteins from 5,057 proteins and 576 differentially expressed phosphopeptides from 1574 phosphorylated proteins. Combined proteomic and phosphoproteomics, 759 correlated proteins were identified, of which 5 were differentially expressed only at the protein level, and 201 were only differentially expressed at the phosphoprotein level. Pathway enrichment analyses revealed that the majority of correlated proteins were associated with glycolysis/gluconeogenesis, Fc gamma R-mediated phagocytosis, focal adhesion, GABAergic synapse, and Rap1 signaling pathway. These pathways are related to cell proliferation, neurocyte migration, and promoting the release of gonadotropin-releasing hormone in the hypothalamus. CTNNB1 occupied important locations in the protein-protein interaction network and is involved in focal adhesion. CONCLUSION The results demonstrate that the proteins differentially expression only at the protein level or only differentially expressed at the phosphoprotein level and their related signalling pathways are crucial in regulating puberty in goats. These differentially expressed proteins and phosphorylated proteins may constitute the proteomic backgrounds between the two different stages.
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Affiliation(s)
- Jing Ye
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Xu Yan
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Wei Zhang
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
| | - Juntai Lu
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
| | - Shuangshuang Xu
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
| | - Xiaoqian Li
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
| | - Ping Qin
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Xinbao Gong
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Ya Liu
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Yinghui Ling
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Yunsheng Li
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Yunhai Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China
| | - Fugui Fang
- Department of Animal Veterinary Science, College of Animal Science and Technology, Anhui Agricultural University, 130 Changjiang West Road, 230036, Hefei, Anhui, China.
- Anhui Province Key Laboratory of Local Livestock and Poultry, Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, 230036, Hefei, Anhui, China.
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Gao YC, Yu ZL, Qin B, Chen C, Ma ZY, Yu SH. Superflexible Artificial Soft Wood. Adv Mater 2023; 35:e2303518. [PMID: 37326618 DOI: 10.1002/adma.202303518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/01/2023] [Indexed: 06/17/2023]
Abstract
Soft woods have attracted enormous interest due to their anisotropic cellular microstructure and unique flexibility. The conventional wood-like materials are usually subject to the conflict between the superflexibility and robustness. Inspired by the synergistic compositions of soft suberin and rigid lignin of cork wood which has good flexibility and mechanical robustness, an artificial soft wood is reported by freeze-casting the soft-in-rigid (rubber-in-resin) emulsions, where the carboxy nitrile rubber confers softness and rigid melamine resin provides stiffness. The subsequent thermal curing induces micro-scale phase inversion and leads to a continuous soft phase strengthened by interspersed rigid ingredients. The unique configuration ensures crack resistance, structural robustness and superb flexibility, including wide-angle bending, twisting, and stretching abilities in various directions, as well as excellent fatigue resistance and high strength, overwhelming the natural soft wood and most wood-inspired materials. This superflexible artificial soft wood represents a promising substrate for bending-insensitive stress sensors.
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Affiliation(s)
- Yu-Cheng Gao
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, China
| | - Zhi-Long Yu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, China
| | - Bing Qin
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, China
| | - Cheng Chen
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, China
| | - Zhi-Yuan Ma
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, China
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, China
- Instiute of Innovative Materials, Department of Materials Science and Engineering, Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
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Lin J, Dong L, Liu YM, Hu Y, Jiang C, Liu K, Liu L, Song YH, Sun M, Xiang XC, Qu K, Lu Y, Wen LP, Yu SH. Nickle-cobalt alloy nanocrystals inhibit activation of inflammasomes. Natl Sci Rev 2023; 10:nwad179. [PMID: 37554586 PMCID: PMC10406336 DOI: 10.1093/nsr/nwad179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/30/2023] [Accepted: 06/18/2023] [Indexed: 08/10/2023] Open
Abstract
Activation of inflammasomes-immune system receptor sensor complexes that selectively activate inflammatory responses-has been associated with diverse human diseases, and many nanomedicine studies have reported that structurally and chemically diverse inorganic nanomaterials cause excessive inflammasome activation. Here, in stark contrast to reports of other inorganic nanomaterials, we find that nickel-cobalt alloy magnetic nanocrystals (NiCo NCs) actually inhibit activation of NLRP3, NLRC4 and AIM2 inflammasomes. We show that NiCo NCs disrupt the canonical inflammasome ASC speck formation process by downregulating the lncRNA Neat1, and experimentally confirm that the entry of NiCo NCs into cells is required for the observed inhibition of inflammasome activation. Furthermore, we find that NiCo NCs inhibit neutrophil recruitment in an acute peritonitis mouse model and relieve symptoms in a colitis mouse model, again by inhibiting inflammasome activation. Beyond demonstrating a highly surprising and apparently therapeutic impact for an inorganic nanomaterial on inflammatory responses, our work suggests that nickel- and cobalt-containing nanomaterials may offer an opportunity to design anti-inflammatory nanomedicines for the therapeutics of macrophage-mediated diseases.
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Affiliation(s)
- Jun Lin
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Liang Dong
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Yi-Ming Liu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Yi Hu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Chen Jiang
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Ke Liu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Liu Liu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Yong-Hong Song
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Mei Sun
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Xing-Cheng Xiang
- The WUT-AMU Franco-Chinese Institute, Wuhan University of Technology, Wuhan 430070, China
| | - Kun Qu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei 230027, China
| | - Yang Lu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Long-Ping Wen
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
| | - Shu-Hong Yu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, School of Basic Medical Sciences, Division of Molecular Medicine, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230027, China
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Yao D, Han X, Gao H, Wang B, Fang Z, Li H, Fang W, Xiao Y. Enhanced extracellular production of raw starch-degrading α-amylase in Bacillus subtilis through expression regulatory element modification and fermentation optimization. Microb Cell Fact 2023; 22:118. [PMID: 37381017 DOI: 10.1186/s12934-023-02116-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/17/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Raw starch-degrading α-amylase (RSDA) can hydrolyze raw starch at moderate temperatures, thus contributing to savings in starch processing costs. However, the low production level of RSDA limits its industrial application. Therefore, improving the extracellular expression of RSDA in Bacillus subtilis, a commonly used industrial expression host, has great value. RESULTS In this study, the extracellular production level of Pontibacillus sp. ZY raw starch-degrading α-amylase (AmyZ1) in B. subtilis was enhanced by expression regulatory element modification and fermentation optimization. As an important regulatory element of gene expression, the promoter, signal peptide, and ribosome binding site (RBS) sequences upstream of the amyZ1 gene were sequentially optimized. Initially, based on five single promoters, the dual-promoter Pveg-PylB was constructed by tandem promoter engineering. Afterward, the optimal signal peptide SPNucB was obtained by screening 173 B. subtilis signal peptides. Then, the RBS sequence was optimized using the RBS Calculator to obtain the optimal RBS1. The resulting recombinant strain WBZ-VY-B-R1 showed an extracellular AmyZ1 activity of 4824.2 and 41251.3 U/mL during shake-flask cultivation and 3-L fermenter fermentation, which were 2.6- and 2.5-fold greater than those of the original strain WBZ-Y, respectively. Finally, the extracellular AmyZ1 activity of WBZ-VY-B-R1 was increased to 5733.5 U/mL in shake flask by optimizing the type and concentration of carbon source, nitrogen source, and metal ions in the fermentation medium. On this basis, its extracellular AmyZ1 activity was increased to 49082.1 U/mL in 3-L fermenter by optimizing the basic medium components as well as the ratio of carbon and nitrogen sources in the feed solution. This is the highest production level reported to date for recombinant RSDA production. CONCLUSIONS This study represents a report on the extracellular production of AmyZ1 using B. subtilis as a host strain, and achieved the current highest expression level. The results of this study will lay a foundation for the industrial application of RSDA. In addition, the strategies employed here also provide a promising way for improving other protein production in B. subtilis.
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Affiliation(s)
- Dongbang Yao
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Xudong Han
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Huanhuan Gao
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Bin Wang
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - He Li
- School of Life Sciences, Anhui University, Hefei, 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China
| | - Wei Fang
- School of Life Sciences, Anhui University, Hefei, 230601, China.
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China.
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China.
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China.
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, Hefei, 230601, China.
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, China.
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, China.
- AHU Green Industry Innovation Research Institute, Hefei, 230088, China.
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Zhang Y, Zhai Y, Mu L, Hu M, Fang W, Xiao Y, Fang Z. Maribacter aquimaris sp. nov., isolated from seawater adjacent to Fildes Peninsula, Antarctica. Antonie Van Leeuwenhoek 2023:10.1007/s10482-023-01844-x. [PMID: 37225945 DOI: 10.1007/s10482-023-01844-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 05/15/2023] [Indexed: 05/26/2023]
Abstract
A novel Gram-stain-negative, aerobic, and rod-shaped bacterium with gliding motility, named strain ANRC-HE7T, was isolated from the seawater of Biological Bay adjacent to Fildes Peninsula, Antarctica. The optimal growth of this strain occurred at 28 °C, pH 7.5, and in the presence of 1.0% (w/v) NaCl. Strain ANRC-HE7T can produce amylase and harbors gene clusters involved in cellulose degradation. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain ANRC-HE7T formed a distinct lineage within the genus Maribacter and was closely related to Maribacter luteus RZ05T (98.4% sequence similarity), Maribacter polysiphoniae LMG 23671T (98.3%), and Maribacter arenosus CAU 1321T (97.3%). However, digital DNA-DNA hybridization and average nucleotide identity values between strain ANRC-HE7T and closely related strains were 17.4-49.1% and 70.9-92.7%, much lower than the cutoff values of 70% and 95%, respectively. On the other hand, strain ANRC-HE7T shared characteristics with most type strains within the genus. Its respiratory quinone was MK-6. The major fatty acids were iso-C15:0, summed feature 3 (C16:1 ω7c and/or C16:1 ω6c), and anteiso-C15:0. The major polar lipids were phosphatidylethanolamine, two unidentified aminolipids, four unidentified phospholipids, and five unidentified glycolipids. The DNA G + C content of strain ANRC-HE7T was 40.1%. Based on the results of the biochemical, phylogenetic, and chemotaxonomic analyses, strain ANRC-HE7T is suggested to represent a novel species of the genus Maribacter, for which the name Maribacter aquimaris sp. nov. is proposed. The type strain is ANRC-HE7T (= MCCC 1K03787T = KCTC 72532T).
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Affiliation(s)
- Yanfeng Zhang
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, Anhui, China
- Institute of Soil and Fertilizer, Anhui Academy of Agricultural Sciences, Hefei, 230031, China
| | - Yanwu Zhai
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, Anhui, China
| | - Lulu Mu
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, Anhui, China
| | - Miaomiao Hu
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, Anhui, China
| | - Wei Fang
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, Anhui, China
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, Anhui, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China.
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei, 230601, Anhui, China.
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Lv Y, Lin W. Comprehensive analysis of the expression, prognosis, and immune infiltrates for CHDs in human lung cancer. Discov Oncol 2022; 13:29. [PMID: 35467222 PMCID: PMC9038980 DOI: 10.1007/s12672-022-00489-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 04/19/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The chromodomain helicase DNA-binding (CHD) family, a group of genes that regulate nucleosome spacing and access to transcription factors, contributes to tumorigenesis in various cancers. However, the roles of CHD family members in lung cancer remain poorly understood. METHODS We investigated the transcriptional, survival, and immune data of CHDs in patients with lung cancer from the Oncomine, UALCAN, GEPIA, Kaplan-Meier Plotter, TCGA, TIMER, cBioPortal, and CR2Cancer databases. Then, perform functional enrichment analysis of CHDs was performed using the Metascape. Finally, the expression of CHD7, CHD8 and DNA damage response genes were evaluated by quantitative real-time PCR and western blot.The effects of CHD7 or CHD8 knockdown on A549 and PC9 cells were measured in vitro by flow cytometry, cell viability and colony formation assays. RESULTS We found that except for CHD5, nearly all members of CHDs in lung cancer showed altered expression compared with adjacent normal tissues. Moreover, the abnormal expression levels of CHDs were related to the clinical outcome of patients with lung adenocarcinoma and, to a lesser extent, patients with lung squamous cell carcinoma, which were significantly associated with the immune infiltrating levels of immune cells. Furthermore, the functions of CHDs and their neighboring genes are mainly related to DNA repair, the cell cycle, and organelle organization. Finally, cellular experiments conducted in vitro confirmed that CHD7/8 played indispensable roles in DNA damage signaling and cell cycle progression in lung adenocarcinoma cells. CONCLUSION This study implied that CHD family members, especially in subclass III, are potential targets of precision therapy and new biomarkers for patients with lung cancer.
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Affiliation(s)
- Yang Lv
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China
- University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China
| | - Wenchu Lin
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, Anhui, People's Republic of China.
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Liu J, Zhu Y, Cai J, Zhong Y, Han T, Chen Z, Li J. Encapsulating Metal-Organic-Framework Derived Nanocages into a Microcapsule for Shuttle Effect-Suppressive Lithium-Sulfur Batteries. Nanomaterials (Basel) 2022; 12:236. [PMID: 35055255 PMCID: PMC8777985 DOI: 10.3390/nano12020236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/26/2021] [Accepted: 01/10/2022] [Indexed: 01/05/2023]
Abstract
Long-term stable secondary batteries are highly required. Here, we report a unique microcapsule encapsulated with metal organic frameworks (MOFs)-derived Co3O4 nanocages for a Li-S battery, which displays good lithium-storage properties. ZIF-67 dodecahedra are prepared at room temperature then converted to porous Co3O4 nanocages, which are infilled into microcapsules through a microfluidic technique. After loading sulfur, the Co3O4/S-infilled microcapsules are obtained, which display a specific capacity of 935 mAh g-1 after 200 cycles at 0.5C in Li-S batteries. A Coulombic efficiency of about 100% is achieved. The constructed Li-S battery possesses a high rate-performance during three rounds of cycling. Moreover, stable performance is verified under both high and low temperatures of 50 °C and -10 °C. Density functional theory calculations show that the Co3O4 dodecahedra display large binding energies with polysulfides, which are able to suppress shuttle effect of polysulfides and enable a stable electrochemical performance.
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Affiliation(s)
- Jinyun Liu
- Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China; (Y.Z.); (Y.Z.); (T.H.)
| | - Yajun Zhu
- Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China; (Y.Z.); (Y.Z.); (T.H.)
| | - Junfei Cai
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano-Electronics, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Yan Zhong
- Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China; (Y.Z.); (Y.Z.); (T.H.)
| | - Tianli Han
- Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China; (Y.Z.); (Y.Z.); (T.H.)
| | - Zhonghua Chen
- Shenzhen FBTech Electronics Ltd., Shenzhen 518100, China
| | - Jinjin Li
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano-Electronics, Shanghai Jiao Tong University, Shanghai 200240, China;
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Liu J, Ding Y, Shen Z, Zhang H, Han T, Guan Y, Tian Y, Braun PV. A Lamellar Yolk-Shell Lithium-Sulfur Battery Cathode Displaying Ultralong Cycling Life, High Rate Performance, and Temperature Tolerance. Adv Sci (Weinh) 2022; 9:e2103517. [PMID: 34845856 PMCID: PMC8787391 DOI: 10.1002/advs.202103517] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/14/2021] [Indexed: 05/23/2023]
Abstract
The shuttling behavior and slow conversion kinetics of the intermediate lithium polysulfides are the severe obstacles for the application of lithium-sulfur (Li-S) batteries over a wide temperature range. Here, an engineered lamellar yolk-shell structure of In2 O3 @void@carbon for the Li-S battery cathode is developed for the first time to construct a powerful barrier that effectively inhibits the shuttling of polysulfides. On the basis of the unique nanochannel-containing morphology, the continuous kinetic transformation of sulfur and polysulfides is confined in a stable framework, which is demonstrated by using X-ray nanotomography. The constructed Li-S battery exhibits a high cycling capability over 1000 cycles at 1.0 C with a capacity decay rate as low as 0.038% per cycle, good rate performance, and temperature tolerance at -10, 25, and 50 °C. A nondestructive in situ monitoring method of the interfacial reaction resistance in different cycling stages is proposed, which provides a new analysis perspective for the development of emerging electrochemical energy-storage systems.
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Affiliation(s)
- Jinyun Liu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)Anhui Provincial Engineering Laboratory for New‐Energy Vehicle Battery Energy‐Storage MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhuAnhui241002P. R. China
| | - Yingyi Ding
- Key Laboratory of Functional Molecular Solids (Ministry of Education)Anhui Provincial Engineering Laboratory for New‐Energy Vehicle Battery Energy‐Storage MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhuAnhui241002P. R. China
| | - Zihan Shen
- National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjingJiangsu210093P. R. China
| | - Huigang Zhang
- National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjingJiangsu210093P. R. China
| | - Tianli Han
- Key Laboratory of Functional Molecular Solids (Ministry of Education)Anhui Provincial Engineering Laboratory for New‐Energy Vehicle Battery Energy‐Storage MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhuAnhui241002P. R. China
| | - Yong Guan
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefeiAnhui230026P. R. China
| | - Yangchao Tian
- National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefeiAnhui230026P. R. China
| | - Paul V. Braun
- Department of Materials Science and EngineeringMaterials Research LaboratoryBeckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana‐ChampaignUrbanaIL61801USA
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Wu S, Zhou R, Ma Y, Fang Y, Xie G, Gao X, Xiao Y, Liu J, Fang Z. Development of a consortium-based microbial agent beneficial to composting of distilled grain waste for Pleurotus ostreatus cultivation. Biotechnol Biofuels 2021; 14:242. [PMID: 34920748 PMCID: PMC8684267 DOI: 10.1186/s13068-021-02089-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 12/04/2021] [Indexed: 05/11/2023]
Abstract
BACKGROUND Pleurotus ostreatus is an edible mushroom popularly cultivated worldwide. Distilled grain waste (DGW) is a potential substrate for P. ostreatus cultivation. However, components in DGW restrict P. ostreatus mycelial growth. Therefore, a cost-effective approach to facilitate rapid P. ostreatus colonization on DGW substrate will benefit P. ostreatus cultivation and DGW recycling. RESULTS Five dominant indigenous bacteria, Sphingobacterium sp. X1, Ureibacillus sp. X2, Pseudoxanthomonas sp. X3, Geobacillus sp. X4, and Aeribacillus sp. X5, were isolated from DGW and selected to develop a consortium-based microbial agent to compost DGW for P. ostreatus cultivation. Microbial agent inoculation led to faster carbohydrate metabolism, a higher temperature (73.2 vs. 71.2 °C), a longer thermophilic phase (5 vs. 3 days), and significant dynamic changes in microbial community composition and diversity in composts than those of the controls. Metagenomic analysis showed the enhanced microbial metabolisms, such as xenobiotic biodegradation and metabolism and terpenoid and polyketide metabolism, during the mesophilic phase after microbial agent inoculation, which may facilitate the fungal colonization on the substrate. In accordance with the bioinformatic analysis, a faster colonization of P. ostreatus was observed in the composts with microbial inoculation than in control after composting for 48 h, as indicated from substantially higher fungal ergosterol content, faster lignocellulose degradation, and higher lignocellulase activities in the former than in the latter. The final mushroom yield shared no significant difference between composts with microbial inoculation and control, with 0.67 ± 0.05 and 0.60 ± 0.04 kg fresh mushroom/kg DGW, respectively (p > 0.05). CONCLUSION The consortium-based microbial agent comprised indigenous microorganisms showing application potential in composting DGW for providing substrate for P. ostreatus cultivation and will provide an alternative to facilitate DGW recycling.
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Affiliation(s)
- Sibao Wu
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China
| | - Rongrong Zhou
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China
| | - Yuting Ma
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China
| | - Yong Fang
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China
| | - Guopai Xie
- Anhui Golden Seed Winery Co., LTD, Fuyang, 341200, Anhui, China
| | - Xuezhi Gao
- Livestock and Poultry Breeding Service Center of Fuyang City, Fuyang, 341200, Anhui, China
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China
| | - Juanjuan Liu
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China.
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China.
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China.
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China.
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Waititu JK, Zhang X, Chen T, Zhang C, Zhao Y, Wang H. Transcriptome Analysis of Tolerant and Susceptible Maize Genotypes Reveals Novel Insights about the Molecular Mechanisms Underlying Drought Responses in Leaves. Int J Mol Sci 2021; 22:6980. [PMID: 34209553 PMCID: PMC8268334 DOI: 10.3390/ijms22136980] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 11/17/2022] Open
Abstract
Maize (Zea mays L.) is the most essential food crop in the world. However, maize is highly susceptible to drought stress, especially at the seedling stage, and the molecular mechanisms underlying drought tolerance remain elusive. In this study, we conducted comparative transcriptome and physiological analyses of drought-tolerant (CML69) and susceptible (LX9801) inbred lines subjected to drought treatment at the seedling stage for three and five days. The tolerant line had significantly higher relative water content in the leaves, as well as lower electrolyte leakage and malondialdehyde levels, than the susceptible line. Using an RNA-seq-based approach, we identified 10,084 differentially expressed genes (DEGs) with 6906 and 3178 DEGs been annotated and unannotated, respectively. Two critical sets of drought-responsive DEGs, including 4687 genotype-specific and 2219 common drought-responsive genes, were mined out of the annotated DEGs. The tolerant-line DEGs were predominantly associated with the cytoskeleton, cell wall modification, glycolysis/gluconeogenesis, transport, osmotic regulation, drought avoidance, ROS scavengers, defense, and transcriptional factors. For the susceptible line, the DEGs were highly enriched in the photosynthesis, histone, and carbon fixation pathways. The unannotated DEGs were implicated in lncRNAs, including 428 previously reported and 22% putative TE-lncRNAs. There was consensus on both the physiological response and RNA-seq outcomes. Collectively, our findings will provide a comprehensive basis of the molecular networks mediating drought stress tolerance of maize at the seedling stage.
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Affiliation(s)
- Joram Kiriga Waititu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xingen Zhang
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Tianci Chen
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Chunyi Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yang Zhao
- National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China
| | - Huan Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- National Agricultural Science and Technology Center, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
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Liang X, Xu L, Liu J, Liu Z, Cheng G, Xu J, Liu L. Patch Attention Layer of Embedding Handcrafted Features in CNN for Facial Expression Recognition. Sensors (Basel) 2021; 21:833. [PMID: 33513723 PMCID: PMC7865259 DOI: 10.3390/s21030833] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/13/2021] [Accepted: 01/21/2021] [Indexed: 01/21/2023]
Abstract
Recognizing facial expression has attracted much more attention due to its broad range of applications in human-computer interaction systems. Although facial representation is crucial to final recognition accuracy, traditional handcrafted representations only reflect shallow characteristics and it is uncertain whether the convolutional layer can extract better ones. In addition, the policy that weights are shared across a whole image is improper for structured face images. To overcome such limitations, a novel method based on patches of interest, the Patch Attention Layer (PAL) of embedding handcrafted features, is proposed to learn the local shallow facial features of each patch on face images. Firstly, a handcrafted feature, Gabor surface feature (GSF), is extracted by convolving the input face image with a set of predefined Gabor filters. Secondly, the generated feature is segmented as nonoverlapped patches that can capture local shallow features by the strategy of using different local patches with different filters. Then, the weighted shallow features are fed into the remaining convolutional layers to capture high-level features. Our method can be carried out directly on a static image without facial landmark information, and the preprocessing step is very simple. Experiments on four databases show that our method achieved very competitive performance (Extended Cohn-Kanade database (CK+): 98.93%; Oulu-CASIA: 97.57%; Japanese Female Facial Expressions database (JAFFE): 93.38%; and RAF-DB: 86.8%) compared to other state-of-the-art methods.
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Affiliation(s)
- Xingcan Liang
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (X.L.); (J.L.); (Z.L.); (G.C.)
- University of Science and Technology of China, Hefei 230026, China; (J.X.); (L.L.)
| | - Linsen Xu
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (X.L.); (J.L.); (Z.L.); (G.C.)
- Anhui Province Key Laboratory of Biomimetic Sensing and Advanced Robot Technology, Hefei 230031, China
| | - Jinfu Liu
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (X.L.); (J.L.); (Z.L.); (G.C.)
| | - Zhipeng Liu
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (X.L.); (J.L.); (Z.L.); (G.C.)
- University of Science and Technology of China, Hefei 230026, China; (J.X.); (L.L.)
| | - Gaoxin Cheng
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; (X.L.); (J.L.); (Z.L.); (G.C.)
- University of Science and Technology of China, Hefei 230026, China; (J.X.); (L.L.)
| | - Jiajun Xu
- University of Science and Technology of China, Hefei 230026, China; (J.X.); (L.L.)
| | - Lei Liu
- University of Science and Technology of China, Hefei 230026, China; (J.X.); (L.L.)
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Han G, Cheng C, Zheng Y, Wang X, Xu Y, Wang W, Zhu S, Cheng B. Identification of Long Non-Coding RNAs and the Regulatory Network Responsive to Arbuscular Mycorrhizal Fungi Colonization in Maize Roots. Int J Mol Sci 2019; 20:E4491. [PMID: 31514333 PMCID: PMC6769569 DOI: 10.3390/ijms20184491] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/22/2019] [Accepted: 09/09/2019] [Indexed: 02/06/2023] Open
Abstract
Recently, long noncoding RNAs (lncRNAs) have emerged as vital regulators of many biological processes in animals and plants. However, to our knowledge no investigations on plant lncRNAs which respond to arbuscular mycorrhizal (AM) fungi have been reported thus far. In this study, maize roots colonized with AM fungus were analyzed by strand-specific RNA-Seq to identify AM fungi-responsive lncRNAs and construct an associated regulatory network. A total of 1837 differentially expressed protein coding genes (DEGs) were identified from maize roots with Rhizophagus irregularis inoculation. Many AM fungi-responsive genes were homologs to MtPt4, STR, STR2, MtFatM, and enriched pathways such as fatty acid biosynthesis, response to phosphate starvation, and nitrogen metabolism are consistent with previous studies. In total, 5941 lncRNAs were identified, of which more than 3000 were new. Of those, 63 lncRNAs were differentially expressed. The putative target genes of differentially expressed lncRNAs (DELs) were mainly related to phosphate ion transmembrane transport, cellular response to potassium ion starvation, and lipid catabolic processes. Regulatory network analysis showed that DELs might be involved in the regulation of bidirectional nutrient exchange between plant and AM fungi as mimicry of microRNA targets. The results of this study can broaden our knowledge on the interaction between plant and AM fungi.
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Affiliation(s)
- Guomin Han
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
- National Engineering Laboratory of Crop Stress Resistance Breeding, Anhui Agricultural University, Hefei 230036, China.
| | - Chen Cheng
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Yanmei Zheng
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Xuewen Wang
- Department of Genetics, University of Georgia, Athens, GA 30602, USA.
| | - Yunjian Xu
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
| | - Wei Wang
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
- National Engineering Laboratory of Crop Stress Resistance Breeding, Anhui Agricultural University, Hefei 230036, China.
| | - Suwen Zhu
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
- National Engineering Laboratory of Crop Stress Resistance Breeding, Anhui Agricultural University, Hefei 230036, China.
| | - Beijiu Cheng
- School of Life Sciences, Anhui Agricultural University, Hefei 230036, China.
- National Engineering Laboratory of Crop Stress Resistance Breeding, Anhui Agricultural University, Hefei 230036, China.
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Zhao Y, Hu F, Zhang X, Wei Q, Dong J, Bo C, Cheng B, Ma Q. Comparative transcriptome analysis reveals important roles of nonadditive genes in maize hybrid An'nong 591 under heat stress. BMC Plant Biol 2019; 19:273. [PMID: 31234785 PMCID: PMC6591960 DOI: 10.1186/s12870-019-1878-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/09/2019] [Indexed: 05/22/2023]
Abstract
BACKGROUND Heterosis is the superior performance of F1 hybrids relative to their parental lines for a wide range of traits. In this study, expression profiling and heterosis associated genes were analyzed by RNA sequencing (RNA-Seq) in seedlings of the maize hybrid An'nong 591 and its parental lines under control and heat stress conditions. RESULTS Through performing nine pairwise comparisons, the maximum number of differentially expressed genes (DEGs) was detected between the two parental lines, and the minimum number was identified between the F1 hybrid and the paternal lines under both conditions, which suggested greater genetic contribution of the paternal line to heat stress tolerance. Gene Ontology (GO) enrichment analysis of the 4518 common DEGs indicated that GO terms associated with diverse stress responses and photosynthesis were highly overrepresented in the 76 significant terms of the biological process category. A total of 3970 and 7653 genes exhibited nonadditive expression under control and heat stress, respectively. Among these genes, 2253 (56.8%) genes overlapped, suggesting that nonadditive genes tend to be conserved in expression. In addition, 5400 nonadditive genes were found to be specific for heat stress condition, and further GO analysis indicated that terms associated with stress responses were significantly overrepresented, and 60 genes were assigned to the GO term response to heat. Pathway enrichment analysis indicated that 113 genes were involved in spliceosome metabolic pathways. Nineteen of the 33 overlapping genes assigned to the GO term response to heat showed significantly higher number of alternative splicing (AS) events under heat stress than under control conditions, suggesting that AS of these genes play an important role in response to heat stress. CONCLUSIONS This study reveals the transcriptomic divergence of the maize F1 hybrid and its parental lines under control and heat stress conditions, and provides insight into the underlying molecular mechanisms of heterosis and the response to heat stress in maize.
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Affiliation(s)
- Yang Zhao
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Fangxiu Hu
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Xingen Zhang
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Qiye Wei
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Jinlei Dong
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Chen Bo
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Beijiu Cheng
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Qing Ma
- The National Engineering Laboratory of Crop Stress Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, China
- Key Laboratory of Crop Biology of Anhui Province, School of Life Sciences, Anhui Agricultural University, Hefei, China
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