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Zhang YS, Zhang YQ, Zhao XM, Liu XL, Qin QL, Liu NH, Xu F, Chen XL, Zhang YZ, Li PY. Metagenomic insights into the dynamic degradation of brown algal polysaccharides by kelp-associated microbiota. Appl Environ Microbiol 2024; 90:e0202523. [PMID: 38259074 PMCID: PMC10880675 DOI: 10.1128/aem.02025-23] [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: 11/12/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024] Open
Abstract
Marine bacteria play important roles in the degradation and cycling of algal polysaccharides. However, the dynamics of epiphytic bacterial communities and their roles in algal polysaccharide degradation during kelp decay are still unclear. Here, we performed metagenomic analyses to investigate the identities and predicted metabolic abilities of epiphytic bacterial communities during the early and late decay stages of the kelp Saccharina japonica. During kelp decay, the dominant epiphytic bacterial communities shifted from Gammaproteobacteria to Verrucomicrobia and Bacteroidetes. In the early decay stage of S. japonica, epiphytic bacteria primarily targeted kelp-derived labile alginate for degradation, among which the gammaproteobacterial Vibrionaceae (particularly Vibrio) and Psychromonadaceae (particularly Psychromonas), abundant in alginate lyases belonging to the polysaccharide lyase (PL) families PL6, PL7, and PL17, were key alginate degraders. More complex fucoidan was preferred to be degraded in the late decay stage of S. japonica by epiphytic bacteria, predominantly from Verrucomicrobia (particularly Lentimonas), Pirellulaceae of Planctomycetes (particularly Rhodopirellula), Pontiellaceae of Kiritimatiellota, and Flavobacteriaceae of Bacteroidetes, which depended on using glycoside hydrolases (GHs) from the GH29, GH95, and GH141 families and sulfatases from the S1_15, S1_16, S1_17, and S1_25 families to depolymerize fucoidan. The pathways for algal polysaccharide degradation in dominant epiphytic bacterial groups were reconstructed based on analyses of metagenome-assembled genomes. This study sheds light on the roles of different epiphytic bacteria in the degradation of brown algal polysaccharides.IMPORTANCEKelps are important primary producers in coastal marine ecosystems. Polysaccharides, as major components of brown algal biomass, constitute a large fraction of organic carbon in the ocean. However, knowledge of the identities and pathways of epiphytic bacteria involved in the degradation process of brown algal polysaccharides during kelp decay is still elusive. Here, based on metagenomic analyses, the succession of epiphytic bacterial communities and their metabolic potential were investigated during the early and late decay stages of Saccharina japonica. Our study revealed a transition in algal polysaccharide-degrading bacteria during kelp decay, shifting from alginate-degrading Gammaproteobacteria to fucoidan-degrading Verrucomicrobia, Planctomycetes, Kiritimatiellota, and Bacteroidetes. A model for the dynamic degradation of algal cell wall polysaccharides, a complex organic carbon, by epiphytic microbiota during kelp decay was proposed. This study deepens our understanding of the role of epiphytic bacteria in marine algal carbon cycling as well as pathogen control in algal culture.
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Affiliation(s)
- Yi-Shuo Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Yu-Qi Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Xiang-Ming Zhao
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Xiao-Lei Liu
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Qi-Long Qin
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Ning-Hua Liu
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Fei Xu
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Xiu-Lan Chen
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Yu-Zhong Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
- MOE Key Laboratory of Evolution and Marine Biodiversity, Frontiers Science Center for Deep Ocean Multispheres and Earth System & College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China
- Joint Research Center for Marine Microbiol Science and Technology, Shandong University and Ocean University of China, Qingdao, China
| | - Ping-Yi Li
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
- Joint Research Center for Marine Microbiol Science and Technology, Shandong University and Ocean University of China, Qingdao, China
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Hou L, Geng Z, Yuan Z, Shi X, Wang C, Chen F, Li H, Xue F. MRSL: a causal network pruning algorithm based on GWAS summary data. Brief Bioinform 2024; 25:bbae086. [PMID: 38487847 PMCID: PMC10940843 DOI: 10.1093/bib/bbae086] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 02/01/2024] [Accepted: 02/15/2024] [Indexed: 03/18/2024] Open
Abstract
Causal discovery is a powerful tool to disclose underlying structures by analyzing purely observational data. Genetic variants can provide useful complementary information for structure learning. Recently, Mendelian randomization (MR) studies have provided abundant marginal causal relationships of traits. Here, we propose a causal network pruning algorithm MRSL (MR-based structure learning algorithm) based on these marginal causal relationships. MRSL combines the graph theory with multivariable MR to learn the conditional causal structure using only genome-wide association analyses (GWAS) summary statistics. Specifically, MRSL utilizes topological sorting to improve the precision of structure learning. It proposes MR-separation instead of d-separation and three candidates of sufficient separating set for MR-separation. The results of simulations revealed that MRSL had up to 2-fold higher F1 score and 100 times faster computing time than other eight competitive methods. Furthermore, we applied MRSL to 26 biomarkers and 44 International Classification of Diseases 10 (ICD10)-defined diseases using GWAS summary data from UK Biobank. The results cover most of the expected causal links that have biological interpretations and several new links supported by clinical case reports or previous observational literatures.
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Affiliation(s)
- Lei Hou
- Beijing International Center for Mathematical Research, Peking University, Beijing, People’s Republic of China, 100871
| | - Zhi Geng
- School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, People’s Republic of China, 100048
| | - Zhongshang Yuan
- Department of Epidemiology and Health Statistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China, 250000
- Institute for Medical Dataology, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China, 250000
| | - Xu Shi
- Department of Biostatistics, University of Michigan, Ann Arbor, USA
| | - Chuan Wang
- Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China, 250000
| | - Feng Chen
- School of Public Health, Nanjing Medical University, Nanjing, China, 211166
| | - Hongkai Li
- Department of Epidemiology and Health Statistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China, 250000
- Institute for Medical Dataology, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China, 250000
| | - Fuzhong Xue
- Department of Epidemiology and Health Statistics, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China, 250000
- Institute for Medical Dataology, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China, 250000
- Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China, 250000
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Lyu Z, Zhou T, Sun M, Feng M, Guo W, Nie L, Song Y, Men X, Li L, Yu Y. Exploratory comparison of flower visiting behavior and pollination ability of mason bees, bumble bees, and honey bees. J Econ Entomol 2023; 116:1949-1956. [PMID: 37947188 DOI: 10.1093/jee/toad204] [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: 02/19/2023] [Revised: 10/09/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
This study explored the flower visiting behaviors and pollination abilities of mason bees (Osmia excavata Alfken (Hymenoptera: Megachilidae)), bumble bees (Bombus terrestris (Linnaeus, 1758) (Hymenoptera: Apidae)), and Italian honey bees (Apis mellifera ligustica Spinola (Hymenoptera: Apidae)) in apple orchards in early spring in Jinan (located in the central region of Shandong) and Yantai (located in the Peninsula of Shandong). We compared the pollen collection patterns, flower visiting behavior, flying speed, and effects on apple pollination of the 3 types of bees. The frequencies of flower visits were significantly higher for mason bees (12.89/min in Jinan and 10.63/min in Yantai) than bumble bees and Italian honey bees in the 2 regions. The single flower residence times were significantly higher for Italian honey bees (8.22 s in Jinan and 9.43 s in Yantai), but Italian honey bees were most affected by the climate. The 3 bees differed significantly in terms of the amount of apple pollen collected and their effects on the fruit setting rate in apples (mason bees > bumble bees > Italian honey bees). The results showed that the mason bee was the most suitable pollinating species for spring apple orchards; Bumble bees were more suitable as alternative pollinators during cloudy and low temperatures; Italian honey bees were able to take advantage of their large number of worker bees in sunny and warm weather. Compared to individual bee species, a combination of 2 or 3 species of bees might be more advantageous in dealing with complex and variable weather conditions.
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Affiliation(s)
- Zhaoyun Lyu
- Shandong Sericulture Research Institute, Shandong Academy of Agricultural Sciences, Yantai, Shandong 264002, China
| | - Ting Zhou
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Meng Sun
- Shandong Sericulture Research Institute, Shandong Academy of Agricultural Sciences, Yantai, Shandong 264002, China
| | - Min Feng
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Wenxiu Guo
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Lei Nie
- Shandong Sericulture Research Institute, Shandong Academy of Agricultural Sciences, Yantai, Shandong 264002, China
| | - Yingying Song
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Xingyuan Men
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Lili Li
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
| | - Yi Yu
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, Shandong 250100, China
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Guo C, Ji W, Yang W, Deng Q, Zheng T, Wang Z, Sui W, Zhai C, Yu F, Xi B, Yu X, Xu F, Zhang Q, Zhang W, Kong J, Zhang M, Zhang C. NKRF in Cardiac Fibroblasts Protects against Cardiac Remodeling Post-Myocardial Infarction via Human Antigen R. Adv Sci (Weinh) 2023; 10:e2303283. [PMID: 37667861 PMCID: PMC10602562 DOI: 10.1002/advs.202303283] [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: 05/21/2023] [Revised: 08/09/2023] [Indexed: 09/06/2023]
Abstract
Myocardial infarction (MI) remains the leading cause of death worldwide. Cardiac fibroblasts (CFs) are abundant in the heart and are responsible for cardiac repair post-MI. NF-κB-repressing factor (NKRF) plays a significant role in the transcriptional inhibition of various specific genes. However, the NKRF action mechanism in CFs remains unclear in cardiac repair post-MI. This study investigates the NKRF mechanism in cardiac remodeling and dysfunction post-MI by establishing a CF-specific NKRF-knockout (NKRF-CKO) mouse model. NKRF expression is downregulated in CFs in response to pathological cardiac remodeling in vivo and TNF-α in vitro. NKRF-CKO mice demonstrate worse cardiac function and survival and increased infarct size, heart weight, and MMP2 and MMP9 expression post-MI compared with littermates. NKRF inhibits CF migration and invasion in vitro by downregulating MMP2 and MMP9 expression. Mechanistically, NKRF inhibits human antigen R (HuR) transcription by binding to the classical negative regulatory element within the HuR promoter via an NF-κB-dependent mechanism. This decreases HuR-targeted Mmp2 and Mmp9 mRNA stability. This study suggests that NKRF is a therapeutic target for pathological cardiac remodeling.
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Affiliation(s)
- Chenghu Guo
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Wei Ji
- Department of UltrasonographyAffiliated Hospital of Shandong University of Traditional Chinese MedicineJinan250014China
| | - Wei Yang
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Qiming Deng
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Tengfei Zheng
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Zunzhe Wang
- Department of Geriatric CardiologyShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan250021China
| | - Wenhai Sui
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Chungang Zhai
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Fangpu Yu
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Bo Xi
- Department of EpidemiologySchool of Public HealthCheeloo College of MedicineShandong UniversityJinan250012China
| | - Xiao Yu
- Key Laboratory Experimental Teratology of the Ministry of EducationDepartment of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinan250012China
| | - Feng Xu
- Department of Emergency MedicineChest Pain CenterShandong Provincial Clinical Research Center for Emergency and Critical Care MedicineQilu HospitalShandong UniversityJinan250012China
| | - Qunye Zhang
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Wencheng Zhang
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Jing Kong
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
| | - Meng Zhang
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
- Cardiovascular Disease Research Center of Shandong First Medical UniversityCentral Hospital Affiliated to Shandong First Medical UniversityJinan250013China
| | - Cheng Zhang
- National Key Laboratory for Innovation and Transformation of Luobing TheoryThe Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China
- Cardiovascular Disease Research Center of Shandong First Medical UniversityCentral Hospital Affiliated to Shandong First Medical UniversityJinan250013China
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Shan C, Xia T, Liu J, Wang Y, Bai P, Xu L, Li Z, Zhao J, Bao X. The impacts of nicotinamide and inositol on the available cells and product performance of industrial baker's yeasts. BIORESOUR BIOPROCESS 2023; 10:41. [PMID: 38647809 PMCID: PMC10991249 DOI: 10.1186/s40643-023-00661-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/25/2023] [Indexed: 04/25/2024] Open
Abstract
A suitable nutrient supply, especially of vitamins, is very significant for the deep display of the inherent genetic properties of microorganisms. Here, using the chemically defined minimal medium (MM) for yeast, nicotinamide and inositol were confirmed to be more beneficial for the performance of two industrial baker's yeasts, a conventional and a high-sugar-tolerant strain. Increasing nicotinamide or inositol to proper levels could enhance the both strains on cell growth and activity and product performance, including trehalose accumulation and leavening performance. The activity of key enzymes (PCK, TPS) and the content of intermediate metabolites (G6P, UDPG) in the trehalose synthesis pathway were promoted by a moderate supply of nicotinamide and inositol. That were also proved that an appropriate amount of niacinamide promoted the transcription of longevity-related genes (PNC1, SIR2), and the proper concentration of inositol altered the phospholipid composition in cells, namely, phosphatidylinositol and phosphatidyl choline. Furthermore, the cell growth and the leavening performance of the both strains were promoted after adjusting inositol to choline to the proper ratio, resulting directly in content changes of phosphatidylinositol and phosphatidyl choline in the cells. While the two strains responded to the different proper ratio of inositol to choline probably due to their specific physiological characteristics. Such beneficial effects of increased nicotinamide levels were confirmed in natural media, molasses and corn starch hydrolyzed sugar media. Meanwhile, such adjustment of inositol to choline ratio could lessen the inhibition of excess inositol on cell growth of the two tested strains in corn starch hydrolyzed sugar media. However, in molasse, such phenomenon was not observed probably since there was higher Ca2+ in it. The results indicated that the effects of nutrient factors, such as vitamins, on cell growth and other properties found out from the simple chemically defined minimal medium were an effective measure to use in improving the recipe of natural media at least for baker's yeast.
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Affiliation(s)
- Chengpeng Shan
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China
| | - Tianqing Xia
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China
| | - Jiao Liu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China.
- Shandong Shouguang Juneng Golden Corn Co., Ltd, Shouguang, 262711, Shandong, People's Republic of China.
| | - Ying Wang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China
| | - Penggang Bai
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China
| | - Lili Xu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China
| | - Zailu Li
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China
| | - Jianzhi Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China.
| | - Xiaoming Bao
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, People's Republic of China
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Fang L, Li CH, Zhang Q, Jiang TJ, Liu Y, Shi FP, Yu P, Yu L, Chen AP, Li T, Wan YZ, Shi L. Ciliated Cells Express a Novel Pattern of Brain-Derived Neurotrophic Factor in Allergic Rhinitis. J Inflamm Res 2023; 16:2595-2606. [PMID: 37360625 PMCID: PMC10289300 DOI: 10.2147/jir.s407368] [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] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023] Open
Abstract
Background Mounting research indicates that brain-derived neurotrophic factor (BDNF), has great potential to increase neuro-hyperresponsiveness and airway resistance in airway allergic disease. The expression level of BDNF has been found to be notably elevated in lung/nasal lavage (NAL) fluid. However, the expression and position of BDNF in ciliated cells with allergic rhinitis remains unclear. Methods Nasal mucosal cells were collected from patients with allergic rhinitis (AR) and mice which were performed under different allergen challenge time, then observed the expression and position of BDNF located in ciliated cells through the immunofluorescence staining. Nasal mucosa, serum and NAL fluid were collected also. The expression level of BDNF and IL-4/5/13 were detected by RT-PCR. The expressions of BDNF (in serum and NAL fluid), and total-IgE, ovalbumin sIgE (in serum) were detected by ELISA. Results We found that MFI of BDNF in AR group's ciliated cells was obviously lower than that in the control group, and a negative correlation was discovered between MFI and VAS score. It can be roughly divided into 5 patterns according to its location in the cytoplasm of ciliated cells. In the mouse model, the expressions of BDNF in serum and NAL fluid increased temporarily after allergen stimulation. The MFI of BDNF in ciliated cells displayed an initial increase followed by a subsequent decrease. Conclusion Our study shows for the first time that, the expression and localization of BNDF were observed in the human nasal ciliated epithelial cells of allergic rhinitis, and the expression of level was less than the control group under the persistent state of allergy. BDNF expression in ciliated cells was transient increased after allergen stimulation and decreased to normal level after 24h in mouse model of allergic rhinitis. This might be the possible source of the transient increase of BNDF in serum and NAL fluid.
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Affiliation(s)
- Li Fang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Otolaryngology Head & Neck Surgery, The Second People’s Hospital of Shenzhen, Shenzhen, Guangdong, People’s Republic of China
| | - Chun-Hao Li
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Qian Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Tian-Jiao Jiang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Yuan Liu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Otolaryngology Head & Neck Surgery, The Second People’s Hospital of Shenzhen, Shenzhen, Guangdong, People’s Republic of China
| | - Feng-Po Shi
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Peng Yu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Liang Yu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Ai-Ping Chen
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Tao Li
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Yu-Zhu Wan
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
| | - Li Shi
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong, People’s Republic of China
- Department of Allergy, Shandong Second Provincial General Hospital, Jinan, Shandong, People’s Republic of China
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Zhao C, Men X, Dang Y, Zhou Y, Ren Y. Probiotics Mediate Intestinal Microbiome and Microbiota-Derived Metabolites Regulating the Growth and Immunity of Rainbow Trout (Oncorhynchus mykiss). Microbiol Spectr 2023; 11:e0398022. [PMID: 36916965 PMCID: PMC10101061 DOI: 10.1128/spectrum.03980-22] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 10/01/2022] [Accepted: 02/24/2023] [Indexed: 03/16/2023] Open
Abstract
Emerging evidence confirms using probiotics in promoting growth and immunity of farmed fish. However, the molecular mechanisms underlying the host-microbiome interactions mediated by probiotics are not fully understood. In this study, we used rainbow trout (Oncorhynchus mykiss) as a model to investigate the internal mechanisms of host-microbiome interactions influenced by two probiotic bacteria, Bacillus velezensis and Lactobacillus sakei. We carried out experiments, including intestinal histology, serum physiology, and transcriptome and combined intestinal microbiome and metabolite profiling. Our results showed that both probiotics had a positive effect on growth, immunity, serum enzyme activity, the gut microbiome, and resistance to Aeromonas salmonicida in rainbow trout. Moreover, the intestinal microbial structure was reshaped with increased relative abundance of potential beneficial bacteria, such as Ruminococcus, Lachnospiraceae ucg-004, Leptotrichia, Bacillus coagulans, Porphyromonadaceae, Anaerococcus, and Photobacterium in the B. velezensis group and Paenibacillaceae and Eubacterium hallii in the L. sakei group. Metabolomic profiling and transcriptome analysis revealed upregulated metabolites as biomarkers, i.e., sucrose and l-malic acid in the B. velezensis group, and N-acetyl-l-phenylalanine, N-acetylneuraminic acid, and hydroxyproline in the L. sakei group. Additionally, a multiomics combined analysis illustrated significant positive correlations between the relative abundance of microflora, metabolites, and gene expression associated with immunity and growth. This study highlights the significant role of probiotics as effectors of intestinal microbial activity and shows that different probiotics can have a species-specific effect on the physiological regulation of the host. These findings contribute to a better understanding of the complex host-microbiome interactions in rainbow trout and may have implications for the use of probiotics in aquaculture. IMPORTANCE Probiotics are kinds of beneficial live microbes that impart beneficial effects on the host. Recent studies have proven that when given supplementation with probiotics, farmed fish showed improved disease prevention and growth promotion. However, the underlying metabolic functions regarding their involvement in regulating growth phenotypes, nutrient utilization, and immune response are not yet well understood in the aquaculture field. Given the active interactions between the gut microbiota and fish immune and growth performance, we conducted the supplementation experiments with the probiotics Bacillus velezensis and Lactobacillus sakei. The results showed that probiotics mediated intestinal microbiome- and microbiota-derived metabolites regulating the growth and immunity of fish, and different probiotics participated in the species-specific physiological regulation of the host. This study contributed to a better understanding of the functional interactions associated with host health and gut microbiota species.
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Affiliation(s)
- Chunyan Zhao
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Xianhui Men
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Yongji Dang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Yangen Zhou
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, Shandong, China
| | - Yichao Ren
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong, China
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8
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Bie L, Zhang M, Wang J, Fang M, Li L, Xu H, Wang M. Comparative Analysis of Transcriptomic Response of Escherichia coli K-12 MG1655 to Nine Representative Classes of Antibiotics. Microbiol Spectr 2023; 11:e0031723. [PMID: 36853057 PMCID: PMC10100721 DOI: 10.1128/spectrum.00317-23] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 01/25/2023] [Accepted: 02/05/2023] [Indexed: 03/01/2023] Open
Abstract
The use of antibiotics leads to strong stresses to bacteria, leading to profound impact on cellular physiology. Elucidating how bacteria respond to antibiotic stresses not only helps us to decipher bacteria's strategies to resistant antibiotics but also assists in proposing targets for antibiotic development. In this work, a comprehensive comparative transcriptomic analysis on how Escherichia coli responds to nine representative classes of antibiotics (tetracycline, mitomycin C, imipenem, ceftazidime, kanamycin, ciprofloxacin, polymyxin E, erythromycin, and chloramphenicol) was performed, aimed at determining and comparing the responses of this model organism to antibiotics at the transcriptional level. On average, 39.71% of genes were differentially regulated by antibiotics at concentrations that inhibit 50% growth. Kanamycin leads to the strongest transcriptomic response (76.4% of genes regulated), whereas polymyxin E led to minimal transcriptomic response (4.7% of genes regulated). Further GO, KEGG, and EcoCyc enrichment analysis found significant transcriptomic changes in carbon metabolism, amino acid metabolism, nutrient assimilation, transport, stress response, nucleotide metabolism, protein biosynthesis, cell wall biosynthesis, energy conservation, mobility, and cell-environmental communications. Analysis of coregulated genes led to the finding of significant reduction of sulfur metabolism by all antibiotics, and analysis of transcription factor-coding genes suggested clustered regulatory patterns implying coregulation. In-depth analysis of regulated pathways revealed shared and unique strategies of E. coli resisting antibiotics, leading to the proposal of four different strategies (the pessimistic, the ignorant, the defensive, and the invasive). In conclusion, this work provides a comprehensive analysis of E. coli's transcriptomic response to antibiotics, which paves the road for further physiological investigation. IMPORTANCE Antibiotics are among the most important inventions in the history of humankind. They are the ultimate reason why bacterial infections are no longer the number one threat to people's lives. However, the wide application of antibiotics in the last half a century has led to aggravating antibiotic resistance, weakening the efficacy of antibiotics. To better comprehend the ways bacteria deal with antibiotics that may eventually turn into resistance mechanisms, and to identify good targets for potential antibiotics, knowledge on how bacteria regulate their physiology in response to different classes of antibiotics is needed. This work aimed to fill this knowledge gap by identifying changes of bacterial functions at the transcription level and suggesting strategies of bacteria to resist antibiotics.
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Affiliation(s)
- Luyao Bie
- State Key Laboratory of Microbial Technology, Microbial Technology Research Institute, Shandong University, Qingdao, China
- Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Mengge Zhang
- State Key Laboratory of Microbial Technology, Microbial Technology Research Institute, Shandong University, Qingdao, China
| | - Juan Wang
- State Key Laboratory of Microbial Technology, Microbial Technology Research Institute, Shandong University, Qingdao, China
- No.3 Middle School of Huimin, Binzhou, China
| | - Meng Fang
- State Key Laboratory of Microbial Technology, Microbial Technology Research Institute, Shandong University, Qingdao, China
| | - Ling Li
- State Key Laboratory of Microbial Technology, Microbial Technology Research Institute, Shandong University, Qingdao, China
| | - Hai Xu
- State Key Laboratory of Microbial Technology, Microbial Technology Research Institute, Shandong University, Qingdao, China
| | - Mingyu Wang
- State Key Laboratory of Microbial Technology, Microbial Technology Research Institute, Shandong University, Qingdao, China
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9
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Zhou C, An K, Zhang X, Tong B, Liu D, Kong D, Bian F. Sporogenesis, gametophyte development and embryogenesis in Glehnia littoralis. BMC Plant Biol 2023; 23:114. [PMID: 36823547 PMCID: PMC9948529 DOI: 10.1186/s12870-023-04105-1] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Glehnia littoralis is an economic herb with both medicinal and edible uses. It also has important ecological value and special phylogenetic status as it is a monotypic genus species distributing around beach. Little information on its reproductive biology has been reported so far, which has hindered conservation and application of this species. In this study, we observed morphological changes from buds emergence to seeds formation and internal changes during sporogenesis, gametophyte development and embryo and endosperm development of G. littoralis using paraffin-embedded-sectioning and stereo microscope. RESULTS The results showed that the stages of internal development events of G. littoralis corresponded to obvious external morphological changes, most of developmental features were consistent with other Apiaceae species. The development of male and female gametophytes was not synchronized in the same flower, however, exhibited temporal overlap. From mid-late April to mid-May, the anther primordial and ovule primordial developed into the trinucleate pollen grain and eight-nuclear embryo sac, respectively. From late-May to mid-July, the zygote developed into mature embryo. In addition, some defects in gynoecium or ovule development and abnormal embryo and endosperm development were found. We induced that the possible causes of abortion in G. littoralis were as follows: nutrient limitation, poor pollination and fertilization, and bad weather. CONCLUSIONS This study revealed the whole process and morphological characteristics of the development of reproductive organ in G. littoralis, which not only provided important data for the study of systematic and conservation biology, but also provided a theoretical basis for cross breeding.
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Affiliation(s)
- Chunxia Zhou
- College of Life Science, Yantai University, Yantai, 264005, China
| | - Kang An
- College of Life Science, Yantai University, Yantai, 264005, China
| | - Xin Zhang
- College of Life Science, Yantai University, Yantai, 264005, China
| | - Boqiang Tong
- Shandong Forestry and Grass Germplasm Resource Center, Jinan, 250102, China
| | - Dan Liu
- Shandong Forestry and Grass Germplasm Resource Center, Jinan, 250102, China
| | - Dongrui Kong
- College of Life Science, Ludong University, Yantai, 264025, China.
| | - Fuhua Bian
- College of Life Science, Yantai University, Yantai, 264005, China.
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10
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Zhang P, Su L, Ji X, Ma F, Yue Q, Zhao C, Zhang S, Sun X, Li K, Zhao L. Cistanche promotes the adipogenesis of 3T3-L1 preadipocytes. PLoS One 2022; 17:e0264772. [PMID: 35231074 PMCID: PMC8887766 DOI: 10.1371/journal.pone.0264772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 02/16/2022] [Indexed: 11/19/2022] Open
Abstract
Cistanche deserticola Ma (cistanche) is a traditional herb with a wide range of therapeutic properties. However, no evidence of cistanche’s effect on adipogenesis has been found. The effect of cistanche that promotes the adipogenesis of 3T3-L1 preadipocytes was proved by using MTT spectrophotometry, Nile Red staining, Oil Red O staining and transcriptome sequencing technology. The mRNA level of key transcription factors for adipogenesis such as PPAR, AP2 and LPL were examined by RT-PCR. The results showed that the intracellular lipid content in cistanche treated cells were notably increased when compared with the non-treated cells. Between the differentiation and cistanche treated groups, the expression of adipogenesis related genes such as grow hormone releasing hormone (Ghrp), BCL2/adenovirus E1B interacting protein 3 (Bnip3) and Gastric inhibitory polypeptide receptor (Gipr) were significantly increased. Our findings also verified that cistanche promoted adipogenesis, which was accompanied by up-regulated level of Bnip3 and PPAR. This study could uncover new signaling pathways involved in adipogenesis regulation.
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Affiliation(s)
- Ping Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Le Su
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Xiuyu Ji
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Feifan Ma
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Qiulin Yue
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Chen Zhao
- Shandong Provincial Key Laboratory of Food and Fermentation Engineering, Shandong Food Ferment Industry Research & Design Institute, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Song Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Xin Sun
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
| | - Kunlun Li
- Jinan Hang Chen Biotechnology Co., Ltd., Jinan, China
| | - Lin Zhao
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Shandong Academy of Sciences, Qilu University of Technology, Jinan, China
- Jinan Hang Chen Biotechnology Co., Ltd., Jinan, China
- * E-mail:
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11
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Jiang L, Tinoco M, Fernández-García S, Sun Y, Traviankina M, Nan P, Xue Q, Pan H, Aguinaco A, González-Leal JM, Blanco G, Blanco E, Hungría AB, Calvino JJ, Chen X. Enhanced Artificial Enzyme Activities on the Reconstructed Sawtoothlike Nanofacets of Pure and Pr-Doped Ceria Nanocubes. ACS Appl Mater Interfaces 2021; 13:38061-38073. [PMID: 34365790 PMCID: PMC8674880 DOI: 10.1021/acsami.1c09992] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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] [Indexed: 05/07/2023]
Abstract
In this work, a simple one-step thermal oxidation process was established to achieve a significant surface increase in {110} and {111} nanofacets on well-defined, pure and Pr-doped, ceria nanocubes. More importantly, without changing most of the bulk properties, this treatment leads to a remarkable boost of their enzymatic activities: from the oxidant (oxidase-like) to antioxidant (hydroxyl radical scavenging) as well as the paraoxon degradation (phosphatase-like) activities. Such performance improvement might be due to the thermally generated sawtoothlike {111} nanofacets and defects, which facilitate the oxygen mobility and the formation of oxygen vacancies on the surface. Finally, possible mechanisms of nanoceria as artificial enzymes have been proposed in this manuscript. Considering the potential application of ceria as artificial enzymes, this thermal treatment may enable the future design of highly efficient nanozymes without changing the bulk composition.
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Affiliation(s)
- Lei Jiang
- Heavy
Oil State Laboratory and Center for Bioengineering and Biotechnology,
College of Chemical Engineering, China University
of Petroleum (East China), Qingdao 266580, China
| | - Miguel Tinoco
- Departamento
de Ciencia de los Materiales, Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Susana Fernández-García
- Departamento
de Ciencia de los Materiales, Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Yujiao Sun
- Heavy
Oil State Laboratory and Center for Bioengineering and Biotechnology,
College of Chemical Engineering, China University
of Petroleum (East China), Qingdao 266580, China
| | - Mariia Traviankina
- Heavy
Oil State Laboratory and Center for Bioengineering and Biotechnology,
College of Chemical Engineering, China University
of Petroleum (East China), Qingdao 266580, China
| | - Pengli Nan
- Heavy
Oil State Laboratory and Center for Bioengineering and Biotechnology,
College of Chemical Engineering, China University
of Petroleum (East China), Qingdao 266580, China
| | - Qi Xue
- Heavy
Oil State Laboratory and Center for Bioengineering and Biotechnology,
College of Chemical Engineering, China University
of Petroleum (East China), Qingdao 266580, China
| | - Huiyan Pan
- Departamento
de Ciencia de los Materiales, Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
- Henan
Key Laboratory of Industrial Microbial Resources and Fermentation
Technology, College of Biological and Chemical Engineering, Nanyang Institute of Science and Technology, Nanyang 473004, China
| | - Almudena Aguinaco
- Departamento
de Física de la Materia Condensada, Facultad de Ciencias, Universidad
de Cádiz, Campus Río
San Pedro, Puerto Real, Cádiz E-11510, Spain
- Instituto
Universitario de Investigación en Microscopía Electrónica
y Materiales (IMEYMAT), Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Juan M. González-Leal
- Departamento
de Física de la Materia Condensada, Facultad de Ciencias, Universidad
de Cádiz, Campus Río
San Pedro, Puerto Real, Cádiz E-11510, Spain
- Instituto
Universitario de Investigación en Microscopía Electrónica
y Materiales (IMEYMAT), Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Ginesa Blanco
- Departamento
de Ciencia de los Materiales, Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
- Instituto
Universitario de Investigación en Microscopía Electrónica
y Materiales (IMEYMAT), Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Eduardo Blanco
- Departamento
de Física de la Materia Condensada, Facultad de Ciencias, Universidad
de Cádiz, Campus Río
San Pedro, Puerto Real, Cádiz E-11510, Spain
- Instituto
Universitario de Investigación en Microscopía Electrónica
y Materiales (IMEYMAT), Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Ana B. Hungría
- Departamento
de Ciencia de los Materiales, Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
- Instituto
Universitario de Investigación en Microscopía Electrónica
y Materiales (IMEYMAT), Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Jose J. Calvino
- Departamento
de Ciencia de los Materiales, Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
- Instituto
Universitario de Investigación en Microscopía Electrónica
y Materiales (IMEYMAT), Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
| | - Xiaowei Chen
- Departamento
de Ciencia de los Materiales, Ingeniería Metalúrgica
y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
- Instituto
Universitario de Investigación en Microscopía Electrónica
y Materiales (IMEYMAT), Universidad de Cádiz, Campus Río San Pedro, Puerto Real, Cádiz E-11510, Spain
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12
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Song H, Dong Z, Li L, Lu Z, Li C, Yu Y, Men X. Relationships Among the Feeding Behaviors of a Mirid Bug on Cotton Leaves of Different Ages and Plant Biochemical Substances. J Insect Sci 2021; 21:6135111. [PMID: 33585926 PMCID: PMC7882875 DOI: 10.1093/jisesa/ieab007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Indexed: 06/12/2023]
Abstract
Apolygus lucorum (Meyer-Dür) (Hemiptera: Miridae) tends to feed on young plant tissues. To explore the relationship between stylet probing behaviors of adult A. lucorum and conditions of cotton leaves, we conducted an experiment using electropenetrography (EPG). Behaviors were recorded on four cotton varieties, in relation to thickness and biochemical traits of differently-aged leaves. Cotton leaf age had a significant effect on the probing behavior of A. lucorum but cotton variety did not. One-day-old leaves of A. lucorum received the highest mean number of stylet probes (penetrations) per insect, and longest mean durations per insect of combined stylet probing or its components, cell rupture and ingestion behaviors. All of the leaf traits (thickness and biochemical substances) were similar among these four cotton varieties. Leaf thickness had a significantly negative effect on the same four variables above. Gossypol and tannin also had a negative impact on combined probing duration. Redundancy analysis showed that the four EPG variables were closely related to nutrient substances (amino acids, sugar, and water) while they had the opposite relationship with plant defense substances (gossypol and tannin). On cotton in the seedling stages, A. lucorum fed more readily on the youngest, thinnest leaves in our no-choice EPG experiments. Nutrients and chemical resistance substances determined the probing duration of A. lucorum. Our findings can contribute to better understanding of patterns of feeding and host consumption by A. lucorum, ultimately improving cotton resistance to A. lucorum.
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Affiliation(s)
- Haiyan Song
- Institute of Plant Protection, Shandong Academy of Agricultural Science, Jinan, China
| | - Zhaoke Dong
- Key Laboratory of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Lili Li
- Institute of Plant Protection, Shandong Academy of Agricultural Science, Jinan, China
| | - Zengbin Lu
- Maize Research Institute, Shandong Academy of Agricultural Science, Jinan, China
| | - Chao Li
- Institute of Plant Protection, Shandong Academy of Agricultural Science, Jinan, China
| | - Yi Yu
- Institute of Plant Protection, Shandong Academy of Agricultural Science, Jinan, China
| | - Xingyuan Men
- Institute of Plant Protection, Shandong Academy of Agricultural Science, Jinan, China
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13
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Lu Z, Dong S, Li C, Li L, Yu Y, Yin S, Men X. Sublethal and transgenerational effects of sulfoxaflor on the demography and feeding behaviour of the mirid bug Apolygus lucorum. PLoS One 2020; 15:e0232812. [PMID: 32407334 PMCID: PMC7224452 DOI: 10.1371/journal.pone.0232812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 04/22/2020] [Indexed: 11/24/2022] Open
Abstract
Sulfoxaflor, the first commercially available sulfoximine insecticide, has been used for the control of sap-feeding insect pests such as plant bugs and aphids on a variety of crops. However, its sublethal effects on the mirid bug Apolygus lucorum, one of the key insect pests of Bt cotton and fruit trees in China, have not been fully examined. Here, we evaluated the demography and feeding behaviour of A. lucorum exposed to sulfoxaflor. The leaf-dipping bioassay showed that the LC10 and LC30 of sulfoxaflor against 3rd-instar nymphs of this insect were 1.23 and 8.37 mg L-1, respectively. The LC10 significantly extended the nymphal duration and decreased the oviposition period by 5.29 days and female fecundity by 56.99% in the parent generation (F0). The longer duration of egg, 5th-instar nymphs, preadult, and male adult longevity were observed in the F1 generation (F1) at LC10. At the LC30, the duration of egg and 1st-instar nymph, female adult longevity, and oviposition period of the F1 were significantly shorter, while the nymphal duration in the F0 and duration of 5th-instar nymphs, preadult survival rate, and male adult longevity in the F1 significantly increased. The net reproductive rate (R0), intrinsic rate of increase (r), and finite rate of increase (λ) in the F1 were not significantly affected by these two concentrations, whereas the mean generation time (T) was lower at the LC30. Additionally, the probe counts and cells mixture feeding time were markedly lengthened by the LC10 and LC30, respectively, when A. lucorum nymphs exposed to sulfoxaflor fed on Bt cotton plants without insecticides. These results clearly indicate that sulfoxaflor causes sublethal effects on A. lucorum and the transgenerational effects depend on the tested concentrations.
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Affiliation(s)
- Zengbin Lu
- Maize Research Institute, Shandong Academy of Agricultural Sciences/National Engineering Laboratory of Wheat and Maize/Key Laboratory of Biology and Genetic Improvement of Maize in Northern Yellow-Huai River Plain, Ministry of Agriculture and Rural Affairs, Jinan, China
| | - Song Dong
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Chao Li
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Lili Li
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yi Yu
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Shuyan Yin
- College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Xingyuan Men
- Institute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, China
- * E-mail:
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14
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Zhao Y, Xie H, Zhao M, Li H, Chen X, Cai Z, Song H. Core-shell hollow spheres of type C@MoS 2 for use in surface-assisted laser desorption/ionization time of flight mass spectrometry of small molecules. Mikrochim Acta 2019; 186:830. [PMID: 31754806 DOI: 10.1007/s00604-019-3960-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 06/03/2019] [Accepted: 10/17/2019] [Indexed: 11/26/2022]
Abstract
Mesoporous carbon hollow spheres coated with MoS2 (C@MoS2) were synthesized to obtain a material with large specific surface area, fast electron transfer efficiency and good water dispersibility. The composite material was applied as a matrix for the analysis of small molecules by surface-assisted laser desorption/ionization time-of-flight mass spectrometry (SALDI-TOF MS). The use of a core-shell C@MoS2 matrix strongly reduces matrix background interferences and increases signal intensity in the analysis of sulfonamides antibiotics (SAs), cationic dyes, emodin, as well as estrogen and amino acids. The composite material was applied to the SALDI-TOF MS analysis of selected molecules in (spiked) real samples. The ionization mechanism of the core-shell C@MoS2 as a matrix is discussed. The method exhibits low fragmentation interference, excellent ionization efficiency, high reproducibility and satisfactory salt tolerance. Graphical abstractSchematic representation of the method for fabrication of MoS2-coated mesoporous carbon hollow spheres (core-shell C@MoS2). As a new matrix, the nanocomposites were applied to analysis of small molecules by surface-assisted laser desorption/ionization time-of-flight mass spectrometry.
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Affiliation(s)
- Yanfang Zhao
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Centre, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Hanyi Xie
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Centre, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Mei Zhao
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Centre, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Huijuan Li
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Centre, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Xiangfeng Chen
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Centre, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China.
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, 999077, People's Republic of China
| | - Hexing Song
- Intelligene Biosystems (QingDao) Co. Ltd., Qingdao, 266400, China
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