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Zhang RY, Wang XY, Li J, Shan HL, Li YH, Huang YK, He XH. Complete genome sequence of " Candidatus Phytoplasma sacchari" obtained using a filter-based DNA enrichment method and Nanopore sequencing. Front Microbiol 2023; 14:1252709. [PMID: 37849920 PMCID: PMC10577292 DOI: 10.3389/fmicb.2023.1252709] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/12/2023] [Indexed: 10/19/2023] Open
Abstract
Phytoplasmas are phloem-limited plant pathogens, such as sugarcane white leaf (SCWL) phytoplasma, which are responsible for heavy economic losses to the sugarcane industry. Characterization of phytoplasmas has been limited because they cannot be cultured in vitro. However, with the advent of genome sequencing, different aspects of phytoplasmas are being investigated. In this study, we developed a DNA enrichment method for sugarcane white leaf (SCWL) phytoplasma, evaluated the effect of DNA enrichment via Illumina sequencing technologies, and utilized Illumina and Nanopore sequencing technologies to obtain the complete genome sequence of the "Candidatus Phytoplasma sacchari" isolate SCWL1 that is associated with sugarcane white leaf in China. Illumina sequencing analysis elucidated that only 1.21% of the sequencing reads from total leaf DNA were mapped to the SCWL1 genome, whereas 40.97% of the sequencing reads from the enriched DNA were mapped to the SCWL1 genome. The genome of isolate SCWL1 consists of a 538,951 bp and 2976 bp long circular chromosome and plasmid, respectively. We identified 459 protein-encoding genes, 2 complete 5S-23S-16S rRNA gene operons, 27 tRNA genes, and an incomplete potential mobile unit (PMU) in the circular chromosome. Phylogenetic analyses and average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values based on the sequenced genome revealed that SCWL phytoplasma and sugarcane grassy shoot (SCGS) phytoplasma belonged to the same phytoplasma species. This study provides a genomic DNA enrichment method for phytoplasma sequencing. Moreover, we report the first complete genome of a "Ca. Phytoplasma sacchari" isolate, thus contributing to future studies on the evolutionary relationships and pathogenic mechanisms of "Ca. Phytoplasma sacchari" isolates.
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Affiliation(s)
- Rong-Yue Zhang
- Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Xiao-Yan Wang
- Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China
| | - Jie Li
- Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China
| | - Hong-Li Shan
- Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China
| | - Yin-Hu Li
- Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China
| | - Ying-Kun Huang
- Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China
| | - Xia-Hong He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- School of Landscape and Horticulture, Southwest Forestry University, Kunming, China
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Su XL, Mai ZY, Wei KJ, Huang YJ, Shan HL, Cheng DJ. Complete Genomic Sequence Analysis of a Sugarcane Streak Mosaic Virus Isolate from Yunnan Province of China. Genes (Basel) 2023; 14:1713. [PMID: 37761853 PMCID: PMC10530572 DOI: 10.3390/genes14091713] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/14/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
In recent years, the sugarcane streak mosaic virus (SCSMV) has been the primary pathogen of sugarcane mosaic disease in southern China. In this study, the complete genome of a sugarcane mosaic sample (named YN-21) from Kaiyuan City, Yunnan Province, was amplified and sequenced. By comparing the amino acid sequences of YN-21 and 15 other SCSMV isolates from the NCBI database, the protease recognition site of SCSMV was determined. YN-21 had the highest nucleotide and amino acid identities of 97.66% and 99.30%, respectively, in comparison with the SCSMV isolate (JF488066). The P1 had the highest variability of 83.38-99.72% in the amino acid sequence, and 6K2 was the most conserved, with 97.92-100% amino acid sequence identity. A phylogenetic analysis of nucleotide and amino acid sequences clustered the 16 SCSMV isolates into two groups. All the Chinese isolates were clustered into the same group, and YN-21 was closely related to the Yunnan and Hainan isolates in China. Recombination analysis showed no major recombination sites in YN-21. Selective pressure analysis showed that the dN/dS values of 11 proteins of SCSMV were less than 1, all of which were undergoing negative selection. These results can provide practical guidance for monitoring SCSMV epidemics and genetics.
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Affiliation(s)
- Xiao-Ling Su
- Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety, Agricultural College, Guangxi University, Nanning 520004, China; (X.-L.S.); (Z.-Y.M.); (K.-J.W.); (Y.-J.H.)
| | - Zhong-Yue Mai
- Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety, Agricultural College, Guangxi University, Nanning 520004, China; (X.-L.S.); (Z.-Y.M.); (K.-J.W.); (Y.-J.H.)
| | - Kun-Jiang Wei
- Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety, Agricultural College, Guangxi University, Nanning 520004, China; (X.-L.S.); (Z.-Y.M.); (K.-J.W.); (Y.-J.H.)
| | - Yang-Jian Huang
- Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety, Agricultural College, Guangxi University, Nanning 520004, China; (X.-L.S.); (Z.-Y.M.); (K.-J.W.); (Y.-J.H.)
| | - Hong-Li Shan
- Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan 661699, China
| | - De-Jie Cheng
- Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety, Agricultural College, Guangxi University, Nanning 520004, China; (X.-L.S.); (Z.-Y.M.); (K.-J.W.); (Y.-J.H.)
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Li J, Zhang RY, Wang XY, Shan HL, Li YH, Huang YK. First Report of Red Leaf Midrib lesions on Sugarcane Caused by Lasiodiplodia theobromae in China. Plant Dis 2022; 107:1952. [PMID: 36383992 DOI: 10.1094/pdis-09-22-2149-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sugarcane (Saccharum officinarum) is an economically important crop and is extensively planted across China. In August 2020, leaf midribs with red lesions were observed on cultivar 'Yunzhe 081609' in Kaiyuan (103.27°E, 23.71°N), Yunnan, Southwestern China. In July to August 2021, similar symptoms were observed on cultivar 'Liucheng 05-136' in Hechi (108.48°E, 24.47°N), Guangxi, and on cultivars 'Yingyu 91-59' and 'Yunzhe 081609' in Lingcang (99.45°E, 23.33°N), Yunnan. Initially symptoms appeared as red spots on the leaf midribs, which gradually expanded, forming elongated red lesions. At high severity, the leaves broke and hung down. Disease incidence of leaves was estimated at 30 to 50% across the locations. To identify the etiology of this disease, three symptomatic leaves were collected from cultivars 'Liucheng 05-136', 'Yingyu 91-59', and 'Yunzhe 081609', respectively. Symptomatic leaf midribs were cut to small fragments (3 × 5 mm), surface sterilized with 70% ethanol for 30 s followed by 1% NaClO for 1 min, rinsed with sterilized distilled water three times, air dried on sterile filter paper, plated on potato dextrose agar (PDA), and incubated at 28°C in the dark. Ten isolates with similar morphological characteristics were obtained. Colonies on PDA were white to grayish-white with aerial mycelium growing initially upward and then forming clusters. After 10 days, mycelia turned to grayish black. Immature conidia were initially hyaline, aseptate, and ellipsoid. Mature conidia became dark brown, septate, longitudinal striate, and measured 21.2 to 25.8 × 11.4 to 16.4 µm (n = 30). Morphologically, the isolates were identified as Lasiodiplodia theobromae (Alves et al. 2008). For molecular identification, genomic DNA of four representative isolates (LTGX1, LTGX2, LTYN1 and LTYN2) was extracted using the Ezup Column Fungi Genomic DNA Purification kit. The internal transcribed spacer (ITS) region of rDNA, translation elongation factor 1-alpha (TEF-1α) gene, and β-tubulin (TUB) gene were amplified with primer pairs ITS1/ITS4 for ITS, EF1-728F/EF1-986R for TEF-1α, and Bt2a/Bt2b for TUB, respectively (Glass and Donaldson 1995; Carbone and Kohn 1999; White et al. 1990), and then sequenced. The ITS (ON533336-ON533339), TEF-1α (ON939550-ON939553) and TUB (OP747306-OP747309) sequences were deposited in GenBank. BLAST searches showed >99% nucleotide identity to the sequences of ex-type isolate CBS 164.96 of L. theobromae (ITS, 99.8% to AY640255; TEF-1α, 99.9% to AY640258; TBU, 100% to EU673110). Phylogenetic analysis using maximum likelihood based on the combined ITS, TEF-1α, and TUB sequences of the isolates and reference sequences of Lasiodiplodia spp. downloaded from the GenBank indicated the isolates obtained in this study formed a clade strongly supported based on bootstrap values (100%) to the ex-type isolate CBS 164.96 sequences of L. theobromae. For pathogenicity tests, three healthy 6-month-old potted sugarcane leaf midribs of cultivar 'Yunzhe 081609' were wounded with a sterile needle, then inoculated using 8-mm mycelial agar plugs from a 10-day-old culture of strain LTYN1, and covered with wet cotton to maintain high relative humidity. Sterile PDA plugs were used as controls. Plants were placed in a greenhouse at 28 to 32°C. The test was conducted twice. Five days after inoculation, red lesions appeared on the inoculated leaf midribs. These symptoms were similar to those observed in the field. The leaves used for negative controls remained symptomless. The same fungus (L. theobromae) was re-isolated from all inoculated-symptomatic tissues; and isolates had the same morphological traits mentioned above. The DNA sequence data of these isolates was also similar than the original isolates. The association of L. theobromae with S. officinarum was recorded earlier in Cuba (Urtiaga, 1986), Myanmar (Thaung, 2008) and the Philippines (Reinking, 1919). Leaf midribs with red lesions caused by Colletotrichum falcatum has already been described around the world (Costa et al. 2021; Hossain et al. 2021; Xie et al. 2019). All together, this information indicates that L. theobromae is one of the causal agent of the red lesions symptoms on the sugarcane leaf midribs. To our knowledge, this is the first report of L. theobromae causing red lesions on leaf midribs of sugarcane in China. Further research will focus on developing management strategies to control this disease effectively.
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Affiliation(s)
- Jie Li
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan, Yunnan, China, 661699;
| | - Rong-Yue Zhang
- Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan, Kaiyuan City, China, 661600;
| | - Xiao-Yan Wang
- No.363 Eastern Lingquan Road, Kaiyuan, Yunnan Province, P.R.ChinaKaiyuan, China, 661699;
| | - Hong-Li Shan
- Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan, Kaiyuan City, China, 661600;
| | - Yin-Hu Li
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China;
| | - Ying-Kun Huang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, 363 East Lingquan Road, Kaiyuan, China, 661699;
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Li TY, Su W, Li LL, Zhao XG, Yang N, Gai JX, Lv X, Zhang J, Huang MQ, Zhang Q, Ji WH, Song XY, Zhou YH, Li XL, Shan HL, Liang HH. Critical role of PAFR/YAP1 positive feedback loop in cardiac fibrosis. Acta Pharmacol Sin 2022; 43:2862-2872. [PMID: 35396533 PMCID: PMC9622682 DOI: 10.1038/s41401-022-00903-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 03/15/2022] [Indexed: 11/08/2022] Open
Abstract
Aberrant activation of cardiac fibroblasts is the main cause and character of cardiac fibrosis, and inhibition of cardiac fibrosis becomes a promising treatment for cardiac diseases. Platelet-activating factor (PAF) and Hippo pathway is recently recognized as key signaling mechanisms in cardiovascular diseases. In this study we explored the potential roles of PAF and Hippo signaling pathway in cardiac fibrosis. Myocardial infarction (MI) was induced in mice by left anterior descending artery ligation. After 28 days, the mice were sacrificed, and the hearts were collected for analyses. We showed that PAF receptor (PAFR) and yes-associated protein 1 (YAP1, a key effector in the Hippo pathway) were significantly increased in the heart of MI mice. Increased expression of PAFR and YAP1 was also observed in angiotensin II (Ang II)-treated mouse cardiac fibroblasts. In mouse cardiac fibroblasts, forced expression of YAP1 increased cell viability, resulted in collagen deposition and promoted fibroblast-myofibroblast transition. We showed that PAF induced fibrogenesis through activation of YAP1 and promoted its nuclear translocation via interacting with PAFR, while YAP1 promoted the expression of PAFR by binding to and activating transcription factor TEAD1. More importantly, silencing PAFR or YAP1 by shRNA, or using transgenic mice to induce the conditional deletion of YAP1 in cardiac fibroblasts, impeded cardiac fibrosis and improved cardiac function in MI mice. Taken together, this study elucidates the role and mechanisms of PAFR/YAP1 positive feedback loop in cardiac fibrosis, suggesting a potential role of this pathway as novel therapeutic targets in cardiac fibrosis.
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Affiliation(s)
- Tian-Yu Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Wei Su
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Liang-Liang Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Xiao-Guang Zhao
- Zhuhai People's Hospital, Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, China
| | - Na Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Jia-Xin Gai
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xin Lv
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Jing Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Meng-Qin Huang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Qing Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Wei-Hang Ji
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Xiao-Ying Song
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Yu-Hong Zhou
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Xue-Lian Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
| | - Hong-Li Shan
- Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Noncoding RNA, Institute for Frontier Medical Technology, Shanghai University of Engineering Science, Shanghai, 201620, China.
| | - Hai-Hai Liang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China.
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone (2019RU070), Chinese Academy of Medical Sciences, Harbin, 150081, China.
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Wang XY, Zhang RY, Li J, Li YH, Shan HL, Li WF, Huang YK. The Diversity, Distribution and Status of Phytoplasma Diseases in China. Front Sustain Food Syst 2022. [DOI: 10.3389/fsufs.2022.943080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Phytoplasmas are important prokaryotic pathogenic bacteria without cell walls, which were formerly known as mycoplasma-like organisms, and belong to the Mollicutes class, Candidatus Phytoplasma genus. They are widely distributed in plants and insects, and can cause serious diseases in important food crops, vegetables, fruit trees, ornamental plants and trees, resulting in huge economic losses. To date, more than 100 phytoplasma diseases have been reported in China, which are distributed throughout the country. Jujube witches'-broom, paulownia witches'-broom, wheat blue dwarf, banana bunchy top, sugarcane white leaf, rice orange leaf and mulberry dwarf represent the phytoplasma diseases causing the most serious damage in China. New phytoplasma diseases and their strains are being reported continuously, indicating that phytoplasmas are more diverse than previously thought. Phytoplasmas are mainly transmitted by insect vectors, such as leafhopper and planthopper, and can also be spread by grafting or Cuscuta australis (known as dodder). Mixed infections of phytoplasmas and viruses, bacteria, and spiroplasmas have also become a serious problem in several crops and are responsible for more synergistic losses. With the continuous development and improvement of technology, molecular biological detection has become the main technique for phytoplasma detection and identification. Currently, research on phytoplasma diseases in China mainly focuses on pathogen identification and classification, and insect vector and host diversity; however, there is less focus on pathogenicity, comparative genomics, and effect factors. More research attention has been paid to wheat blue dwarf phytoplasma, paulownia witches'-broom phytoplasma, jujube witches'-broom phytoplasma, and sugarcane white leaf phytoplasma. Other phytoplasma diseases have been reported; however, there have been no in-depth studies. In this paper, the history and present situation of phytoplasma research, and the status, distribution, and diversity of phytoplasma diseases are summarized, and some possible research directions of phytoplasma in the future in China are proposed.
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Zhang L, Wang YN, Ju JM, Shabanova A, Li Y, Fang RN, Sun JB, Guo YY, Jin TZ, Liu YY, Li TY, Shan HL, Liang HH, Yang BF. Mzb1 protects against myocardial infarction injury in mice via modulating mitochondrial function and alleviating inflammation. Acta Pharmacol Sin 2021; 42:691-700. [PMID: 32759964 PMCID: PMC8115150 DOI: 10.1038/s41401-020-0489-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/20/2020] [Indexed: 12/23/2022] Open
Abstract
Myocardial infarction (MI) leads to the loss of cardiomyocytes, left ventricle dilation and cardiac dysfunction, eventually developing into heart failure. Mzb1 (Marginal zone B and B1 cell specific protein 1) is a B-cell-specific and endoplasmic reticulum-localized protein. Mzb1 is an inflammation-associated factor that participates a series of inflammatory processes, including chronic periodontitis and several cancers. In this study we investigated the role of Mzb1 in experimental models of MI. MI was induced in mice by ligation of the left descending anterior coronary artery, and in neonatal mouse ventricular cardiomyocytes (NMVCs) by H2O2 treatment in vitro. We showed that Mzb1 expression was markedly reduced in the border zone of the infarct myocardium of MI mice and in H2O2-treated NMVCs. In H2O2-treated cardiomyocytes, knockdown of Mzb1 decreased mitochondrial membrane potential, impaired mitochondrial function and promoted apoptosis. On contrary, overexpression of Mzb1 improved mitochondrial membrane potential, ATP levels and mitochondrial oxygen consumption rate (OCR), and inhibited apoptosis. Direct injection of lentiviral vector carrying Len-Mzb1 into the myocardial tissue significantly improved cardiac function and alleviated apoptosis in MI mice. We showed that Mzb1 overexpression significantly decreased the levels of Bax/Bcl-2 and cytochrome c and improved mitochondrial function in MI mice via activating the AMPK-PGC1α pathway. In addition, we demonstrated that Mzb1 recruited the macrophages and alleviated inflammation in MI mice. We conclude that Mzb1 is a crucial regulator of cardiomyocytes after MI by improving mitochondrial function and reducing inflammatory signaling pathways, implying a promising therapeutic target in ischemic cardiomyopathy.
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Affiliation(s)
- Lu Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Yi-Ning Wang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Jia-Ming Ju
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Azaliia Shabanova
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
- Department of Outpatient and Emergency Pediatric, Bashkir State Medical University, Ground Floor, Teatralnaya Street, 2a, 450000, Ufa, Russia
| | - Yue Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Ruo-Nan Fang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Jia-Bin Sun
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Ying-Ying Guo
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Tong-Zhu Jin
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Yan-Yan Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Tian-Yu Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
| | - Hong-Li Shan
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone (2019RU070), Chinese Academy of Medical Sciences, Harbin, 150081, China
| | - Hai-Hai Liang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China.
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China.
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone (2019RU070), Chinese Academy of Medical Sciences, Harbin, 150081, China.
| | - Bao-Feng Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, 150081, China.
- Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, 150081, China.
- Research Unit of Noninfectious Chronic Diseases in Frigid Zone (2019RU070), Chinese Academy of Medical Sciences, Harbin, 150081, China.
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Luo ZM, Wang XY, Yin J, Huang YK, Li WF, Zhang RY, Shan HL, Cang XY, Li J. Resistance to Borer Damage in Seedlings of New Varieties of Sugarcane. PAK J ZOOL 2021. [DOI: 10.17582/journal.pjz/20180712030748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Li WF, Zhang RY, Yin J, Shan HL, Cang XY, Luo ZM, Wang XY, Li J, Huang YK. Effects of a New Sex Pheromone Trap and Biological Agents on the Control of Sesamia inferens Walker and Argyroploce schistaceana (Snellen). PAK J ZOOL 2021. [DOI: 10.17582/journal.pjz/20180514150558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Li J, Zhang RY, Wang XY, Shan HL, Wang CM, Cang XY, Huang YK. First Report of Alternaria tenuissima Causing Leaf Blight on Sugarcane in China. Plant Dis 2020; 105:1222. [PMID: 33200971 DOI: 10.1094/pdis-07-20-1507-pdn] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sugarcane (Saccharum officinarum L.) is the main sugar crop in China. Yunnan is the second largest sugarcane production province in China. In December 2018, leaf blight was first observed on almost every leaf of sugarcane on 'Huanan 54-11', 'Baimei' and 'Chongan' in Kaiyuan (103°27' E, 23°72' N), Yunnan. In October 2019, during our survey in the field in Lingcang (100°08' E, 23°88' N), Yunnan, this disease was also observed on 'ROC 25'. Symptoms of the disease initially appeared as wilted, which seemed to be cause by water stress. As the disease progressed, irregular straw-yellow and blighted lesion ran throughout the leaf lamina from leaf tip to entire leaf sheath, many small black conidia formed in the dead leaf tissue under humid conditions. Symptomatic leaf tissues were surface-sterilized with 70% ethanol for 30 s, 0.1% HgCl2 for 1 min, and rinsed with sterilized water three times, air dried on sterile filter paper, and plated on potato dextrose agar (PDA). Six isolates were obtained from six symptomatic leaf samples and were transferred onto potato carrot agar (PCA). Colonies on PDA were white with loose aerial hyphae at first, then turned to dark olive or dark. Colonies on PCA were grayish with sparse hyphae, then turned to dark gray. Conidiophores were brown, simple or branched, and produced numerous conidia in short chains. Conidia (n = 50) were obclavate to obpyriform or ellipsoid, brown to dark brown, with a cylindrical short beak at the tip (2.3 to 17.3 µm in length), and 15.3 to 46.6 μm × 4.2 to 17.9 μm, 2 to 7 transverse septa and 0 to 3 longitudinal septa. Morphologically, the isolates were identified as Alternaria tenuissima (Simmons 2007). Two representative isolates C4 and C5 were selected for molecular identification. The internal transcribed spacers (ITS), Histone 3 genes and plasma membrane ATPase were amplified with primer pairs ITS1/ITS4, H3-1a/H3-1b and ATPDF1/ATPDR1, respectively (Glass et al. 1995; Lawrence et al. 2013). The sequences were deposited in GenBank (ITS, MT679707-MT679708; Histone 3, MT710929-MT710930; ATPase, MT833928-MT833929). BLAST searches showed ≥99% nucleotide identity to the sequence of A. tenuissima (ITS, 100% to MN822571; Histone 3, 100% to MN481955; ATPase, 99% to JQ671875, 100% to MH492703, respectively). Thus, the fungus was identified as A. tenuissima based on morphological and molecular characteristics. For pathogenicity tests, five healthy 2-month-old potted sugarcane leaves were wounded with one sterile needle and inoculated with 20 μl of suspension of 106 conidia/ mL, and five plants were inoculated with distilled water as the controls. Plants were placed in a greenhouse at 25 to 35°C. After two months, the leaf wound inoculated with the putative pathogen displayed blighted as those observed in the field whereas the controls remained symptomless. The fungus was reisolated from symptomatic leaves with the same morphological and molecular traits as the original isolates. The fungus was not isolated from the control plants. Pathogenicity tests were repeated two times. A. tenuissima causing leaf blight on barley in China was reported in 2008 (Luo et al. 2008). Leaf spot disease of sugarcane caused by A. tenuis has been recorded in Maharashtra (Patil et al. 1974). To our knowledge, this is the first report on A. tenuissima affecting leaf blight on sugarcane in Yunnan Province, China. Identification of the causes of the disease is important to develop effective disease management strategies. The author(s) declare no conflict of interest. Funding: This research was supported by Sugar Crop Research System (CARS-170303), the Yunling Industry and Technology Leading Talent Training Program "Prevention and Control of Sugarcane Pests" (2018LJRC56), and the Yunnan Province Agriculture Research System. References: Glass, N. L., et al. 1995. Appl. Environ. Microbiol. 61:1323. Lawrence, D. P., et al. 2013. Mycologia 105:530. Luo, Z., et al. 2008. Acta Phytophy. Sin. 35(5): 469-470. Patil, A.O., et al. 1974. Res. J. Mahatma Phule Agric. Univ. 5(2): 122-123. Simmons, E. G. 2007. Alternaria: An Identification Manual. CBS Fungal Biodiversity Centre, Utrecht, The Netherlands. Caption for supplementary Figure 1 Supplementary Figure S1. Disease symptoms of sugarcane leaf blight disease and morphological characteristics of Alternaria tenuissima. (A) Typical straw-yellow and blighted lesions on naturally-infected leaves of sugarcane; (B) Infected symptoms on wounded leaves of sugarcane two months after artificial infection with A. tenuissima; (C) Colony of A. tenuissima on PDA; (D) Colony of A. tenuissima on PCA; and (E-F) Sporulation and conidia of A. tenuissima on PCA. (Scale bars = 100 μm; 20 μm).
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Affiliation(s)
- Jie Li
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan, Yunnan, China, 661699;
| | - Rong-Yue Zhang
- Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan, Kaiyuan City, China, 661600;
| | - Xiao-Yan Wang
- No.363 Eastern Lingquan Road, Kaiyuan, Yunnan Province, P.R.ChinaKaiyuan, China, 661699;
| | - Hong-Li Shan
- Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Province Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan, Kaiyuan City, China, 661600;
| | - Chang-Mi Wang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan, Yunnan, China;
| | - Xiao-Yan Cang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan, China;
| | - Ying-Kun Huang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, 363 East Lingquan Road, Kaiyuan, China, 661699;
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Zhang RY, Shan HL, Huang YK, Wang XY, Li J, Li WF, Cang XY, Yin J, Luo ZM. Survey of Incidence and Nested PCR Detection of Sugarcane White Leaf in Different Varieties. Plant Dis 2020; 104:2665-2668. [PMID: 32749946 DOI: 10.1094/pdis-11-19-2482-re] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sugarcane white leaf (SCWL) is a devastating sugarcane (Saccharum officinarum) disease caused by a 16SrXI group phytoplasma, which is extremely harmful to sugarcane production. To determine the occurrence of SCWL in different varieties in 2018, we conducted a field survey and performed nested PCR detection of SCWL phytoplasma in cane-planting areas of Mangweng and Hepai in Gengma, Yunnan province, which are the areas most severely affected by SCWL in China. The results of the field survey showed that the symptomatic incidence of SCWL differed among varieties. The mean symptomatic incidence of SCWL on variety Yuetang60 was the highest (73.50%), and it was the lowest on Liucheng05-136 (13.67%). Using nested PCR, the SCWL phytoplasma was detected in symptomatic plants of all varieties more than 90% of the time; the SCWL phytoplasma was detected in 91 and 97% of symptomatic plants of Yingyu91-59 and Liucheng05-136 varieties, respectively. The SCWL phytoplasma was detected by PCR in 82% of the asymptomatic plant samples. The results of this study showed that field survey based on white leaf symptoms did not accurately reflect the actual occurrence of the SCWL phytoplasma.
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Affiliation(s)
- Rong-Yue Zhang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Hong-Li Shan
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Ying-Kun Huang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Xiao-Yan Wang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Jie Li
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Wen-Feng Li
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Xiao-Yan Cang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Jiong Yin
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
| | - Zhi-Ming Luo
- Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, P.R. China
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Li WF, Zhang RY, Pu CH, Yin J, Luo ZM, Wang XY, Cang XY, Shan HL, Huang YK. Natural Enemies of Sugarcane Pests and Their Roles in Natural Control in Yunnan, China. PAK J ZOOL 2019. [DOI: 10.17582/journal.pjz/2019.51.5.rev1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Li X, Wang G, QiLi M, Liang H, Li T, E X, Feng Y, Zhang Y, Liu X, Qian M, Xu B, Shen Z, Gitau SC, Zhao D, Shan H. Aspirin Reduces Cardiac Interstitial Fibrosis by Inhibiting Erk1/2-Serpine2 and P-Akt Signalling Pathways. Cell Physiol Biochem 2018. [PMID: 29518782 DOI: 10.1159/000487972] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Cardiac interstitial fibrosis is an abnormality of various cardiovascular diseases, including myocardial infarction, hypertrophy, and atrial fibrillation, and it can ultimately lead to heart failure. However, there is a lack of practical therapeutic approaches to treat fibrosis and reverse the damage to the heart. The purpose of this study was to investigate the effect of long-term aspirin administration on pressure overload-induced cardiac fibrosis in mice and reveal the underlying mechanisms of aspirin treatment. METHODS C57BL/6 mice were subjected to transverse aortic constriction (TAC), and treated with 10 mg·kg-1·day-1 of aspirin for 4 weeks. Masson staining and a collagen content assay were used to detect the effects of aspirin on cardiac fibrosis in vivo and in vitro. Western blot and qRT-PCR were applied to examine the impact of aspirin on extracellular signal-regulated kinases (Erks), p-Akt/β-catenin, SerpinE2, collagen I, and collagen III levels in the mice heart. RESULTS Aspirin significantly suppressed the expression of α-smooth muscle actin (α-SMA; 1.19±0.19-fold) and collagen I (0.95±0.09-fold) in TAC mice. Aspirin, at doses of 100 and 1000 µM, also significantly suppressed angiotensin II-induced α-SMA and collagen I in cultured CFs. The enhanced phosphorylation of Erk1/2 caused by TAC (p-Erk1, 1.49±0.19-fold; p-Erk2, 1.96±0.68-fold) was suppressed by aspirin (p-Erk1, 1.04±0.15-fold; p-Erk2, 0.87±0.06-fold). SerpinE2 levels were suppressed via the Erk1/2 signalling pathway following treatment with aspirin (1.36±0.12-fold for TAC; 1.06±0.07-fold for aspirin+TAC). The p-Akt and β-catenin levels were also significantly inhibited in vivo and in vitro. CONCLUSIONS Our study reveals a novel mechanism by which aspirin alleviates pressure overload-induced cardiac interstitial fibrosis in TAC mice by suppressing the p-Erk1/2 and p-Akt/β-catenin signalling pathways.
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Affiliation(s)
- Xuelian Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - GuoYuan Wang
- Department of pathology of The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - MuGe QiLi
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - HaiHai Liang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - TianShi Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - XiaoQiang E
- Department of Orthopaedics, the First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Ying Feng
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - Ying Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - Xiao Liu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - Ming Qian
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - BoZhi Xu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - ZhiHang Shen
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - Samuel Chege Gitau
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China.,Department of Pharmacy and Complementary Medicine, School of Health Sciences, Kenyatta University, Nairobi, Kenya
| | - DanDan Zhao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
| | - HongLi Shan
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education),College of Pharmacy, Harbin Medical University, Harbin, China
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Li WF, Zhang RY, Huang YK, Pu CH, Yin J, Cang XY, Shan HL, Wang XY, Luo ZM. Loss of cane and sugar yield resulting from Ceratovacuna lanigera Zehntner damage in cane-growing regions in China. Bull Entomol Res 2018; 108:125-129. [PMID: 28693633 DOI: 10.1017/s0007485317000608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ceratovacuna lanigera Zehntner is a major leaf pest of sugarcane. Widely distributed, it affects both the yield and quality of sugarcane in China. This study aimed to assess real yield and sugar yield losses, and the effect of C. lanigera damage on emergence of newly planted and ratoon cane under current production levels. Field experiments were carried out from 2014 to 2016 in Yunnan Province China. At maturity, plants were harvested and weighed to determine yield, and the effect on sugarcane quality and sucrose content analyzed. Real yield decreased by average of 46,185 kg hm-2 (range: 37,545-61,845 kg hm-2) in damaged versus undamaged areas, with an average yield loss rate of 35.9% (28.5-45.7%). Juice yield decreased by an average of 3.01% (2.4-4.13%) and sucrose content by 6.38% (5.48-8.16%). Juice brix decreased by an average of 7.66°BX (6.95-9.05°BX) and juice gravity purity by 12.35% (8.43-19.97%). In contrast, the reducing sugar content increased by an average of 1.21% (1.01-1.3%). Emergence rates of newly planted cane decreased by an average of 26.0% (24.7-27.3%). The emergence number of ratoon cane decreased by 66,834 hm2 (57,429-76,238 hm-2) and relative emergence loss rates of ratoon cane decreased by an average of 57.8% (57.6-58.0%). These findings confirm that C. lanigera damage severely affects sugarcane yield and quality in Yunnan Province. The results will help the implementation of effective control measures, thereby supporting sustainable development of the Chinese sugar industry.
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Affiliation(s)
- W F Li
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
| | - R Y Zhang
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
| | - Y K Huang
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
| | - C H Pu
- Yunnan Academy of Agricultural Sciences,Kunming 650205,China
| | - J Yin
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
| | - X Y Cang
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
| | - H L Shan
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
| | - X Y Wang
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
| | - Z M Luo
- Yunnan Key Laboratory of Sugarcane Genetic Improvement,Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences,Kaiyuan 661699,China
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Li WF, Wang XY, Huang YK, Zhang RY, Yin J, Luo ZM, Shan HL. Loss of Cane and Sugar Yield due to Damage by Tetramoera schistaceana (Snellen) and Chilo sacchariphagus (Bojer) in the Cane-Growing Regions of China. PAK J ZOOL 2018. [DOI: 10.17582/journal.pjz/2018.50.1.265.271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zhang RY, Li WF, Huang YK, Wang XY, Shan HL, Luo ZM, Yin J. Group 16SrXI phytoplasma strains, including subgroup 16SrXI-B and a new subgroup, 16SrXI-D, are associated with sugar cane white leaf. Int J Syst Evol Microbiol 2015; 66:487-491. [PMID: 26508111 DOI: 10.1099/ijsem.0.000712] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Sugar cane white leaf (SCWL) is a serious disease caused by phytoplasmas. In this study, we performed nested PCR with phytoplasma universal primer pairs (P1/P7 and R16F2n/R16R2) for the 16S rRNA gene to detect SCWL phytoplasmas in 31 SCWL samples collected from Baoshan and Lincang, Yunnan, China. We cloned and sequenced the nested PCR products, revealing that the 16S rRNA gene sequences from 31 SCWL samples were all 1247 bp in length and shared more than 99 % nucleotide sequence similarity with the 16S rRNA gene sequences of SCWL phytoplasmas from various countries. Based on the reported 16S rRNA gene sequence data from SCWL isolates of various countries, we conducted phylogenetic and virtual RFLP analysis. In the resulting phylogenetic tree, all SCWL isolates clustered into two branches, with the Lincang and Baoshan SCWL phytoplasma isolates belonging to different branches. The virtual RFLP patterns show that phytoplasmas of the Lincang branch belong to subgroup 16SrXI-B. However, the virtual RFLP patterns revealed by HaeIII digestion of phytoplasmas of the Baoshan branch differed from those of subgroup 16SrXI-B. According to the results of phylogenetic and virtual RFLP analysis, we propose that the phytoplasmas of the Baoshan branch represent a new subgroup, 16SrXI-D. These findings suggest that SCWL is caused by phytoplasmas from group 16SrXI, including subgroup 16SrXI-B and a new subgroup, 16SrXI-D.
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Affiliation(s)
- Rong-Yue Zhang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, PR China
| | - Wen-Feng Li
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, PR China
| | - Ying-Kun Huang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, PR China
| | - Xiao-Yan Wang
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, PR China
| | - Hong-Li Shan
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, PR China
| | - Zhi-Ming Luo
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, PR China
| | - Jiong Yin
- Sugarcane Research Institute, Yunnan Academy of Agricultural Science, Yunnan Key Laboratory of Sugarcane Genetic Improvement, Kaiyuan 661699, PR China
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Li LQ, Li XL, Wang L, Du WJ, Guo R, Liang HH, Liu X, Liang DS, Lu YJ, Shan HL, Jiang HC. Matrine inhibits breast cancer growth via miR-21/PTEN/Akt pathway in MCF-7 cells. Cell Physiol Biochem 2012; 30:631-41. [PMID: 22832383 DOI: 10.1159/000341444] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Matrine is one of the major alkaloids extracted from Sophora flavescens and has been used clinically for breast cancer with notable therapeutic efficacy in China. However, the mechanisms are still largely unknown. METHODS Cell viability was analyzed by MTT assay. After MCF-7 cells were treated with matrine for 48h, apoptosis was detected by flow cytometry, TUNEL assay and transmission electron microscopy, and the cell cycle distribution was also analyzed by flow cytometry. Further, the expression of PTEN, pAkt, Akt, pBad, Bad, p21(/WAF1/CIP1), and p27(/KIP1) was determined by Western blot. Changes of miR-21 level were quantified by real-time RT-PCR. After miR-21 was transfected in MCF-7 cells, PTEN protein level was measured by Western blot. RESULTS Matrine inhibited MCF-7 cell growth in a concentration-and time-dependent manner, by inducing apoptosis and cell cycle arrest at G(1)/S phase. Matrine up-regulated PTEN by downregulating miR-21 which in turn dephosphorylated Akt, resulting in accumulation of Bad, p21(/WAF1/CIP1) and p27(/KIP1). CONCLUSION Our study unraveled, for the first time, the ability of matrine to suppress breast cancer growth and elucidated the miR-21/PTEN/Akt pathway as a signaling mechanism for the anti-cancer action of matrine. Our findings also reinforce the notion that miRNAs can act as mediators of the therapeutic efficacy of natural medicines.
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Affiliation(s)
- Lin-Qiang Li
- Key Laboratory of Hepatosplenic Surgery, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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Wang LH, Li XL, Li Q, Fu Y, Yu HJ, Sun YQ, Zhang L, Shan HL. Berberine alleviates ischemic arrhythmias via recovering depressed I(to) and I(Ca) currents in diabetic rats. Phytomedicine 2012; 19:206-210. [PMID: 22188769 DOI: 10.1016/j.phymed.2011.11.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 08/12/2011] [Accepted: 11/01/2011] [Indexed: 05/31/2023]
Abstract
The present study was designed to elucidate the potential mechanism underlying that berberine suppressed ischemic arrhythmias in a rat model of diabetes mellitus (DM). Streptozotocin (STZ)-induced diabetic rats were subjected to ischemia by the occlusion of left anterior descending (LAD) coronary artery. Berberine was orally administered for 7 days before ischemic injury in diabetic rats. Whole-cell patch-clamp was performed to measure the transient outward K⁺ current (I(to)) and L-type Ca²⁺ current (I(Ca)). Results showed that oral administration of berberine (100 mg/kg) attenuated ischemia-induced arrhythmias in diabetic rats. Berberine significantly shortened the prolonged QTc interval from 214 ± 6ms to 189 ± 5ms in ischemic diabetic rats, and also restored the diminished I(to) and I(Ca) current densities in the same animal model rats. In conclusion, the ability of berberine to protect diabetic rats against cardiac arrhythmias makes it possible to be a prospective therapeutic agent in clinical management of cardiac disease secondary to diabetes.
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Affiliation(s)
- Li-Hong Wang
- Department of Endocrinology, The Second affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, PR China
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Chu W, Li X, Li C, Wan L, Shi H, Song X, Liu X, Chen X, Zhang C, Shan H, Lu Y, Yang B. TGFBR3, a potential negative regulator of TGF-β signaling, protects cardiac fibroblasts from hypoxia-induced apoptosis. J Cell Physiol 2011; 226:2586-94. [DOI: 10.1002/jcp.22604] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Zhang L, Xu CQ, Hong Y, Zhang JL, Liu Y, Zhao M, Cao YX, Lu YJ, Yang BF, Shan HL. Propranolol regulates cardiac transient outward potassium channel in rat myocardium via cAMP/PKA after short-term but not after long-term ischemia. Naunyn Schmiedebergs Arch Pharmacol 2010; 382:63-71. [PMID: 20499050 DOI: 10.1007/s00210-010-0520-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Accepted: 04/25/2010] [Indexed: 10/19/2022]
Abstract
It was recently suggested that the antiarrhythmic effect of propranolol, a ss-adrenoceptor antagonist, on ischemic myocardium includes restoration of I(K1) current and Cx43 conductance; however, little is known whether effects on the transient outward current I(to) contribute. A model of myocardial infarction (MI) by ligating the left anterior descending coronary artery was established. Propranolol was given 1 h or daily for 3 months, whole-cell patch-clamp techniques were used to measure I(to). Kv4.2 and PKA levels were analyzed by Western blot and cAMP level was determined by radioimmunoassay. The results showed that propranolol decreased the incidence of arrhythmias induced by acute ischemia and mortality in 3 month MI rats. Propranolol restored the diminished I(to) density and Kv4.2 protein in MI hearts. In addition, neonatal cardiomyocyte pretreatment with propranolol or administrated after hypoxia can resume I(to) density. cAMP/PKA was enhanced in acute MI, the reason of decreased Kv4.2 expression. Treatment with propranolol prevented the increased cAMP/PKA in 1 h MI, whereas propranolol had little effect on decreased cAMP/PKA in 3 months MI. This study demonstrated that both short- and long-term propranolol administrations protect cardiomyocytes against arrhythmias and mortality caused by cardiac ischemia; the involvement of cAMP/PKA signal pathway in the regulation of propranolol on I(to) acted differently along with the ischemic progression.
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Affiliation(s)
- Li Zhang
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang, People's Republic of China
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Xu W, Shan HL, Zhang MW. [Relationship between CK18 expression in pathologically negative lymph nodes and Tiam 1 mRNA expression in the gastric cancer tissue]. Zhonghua Zhong Liu Za Zhi 2009; 31:919-920. [PMID: 20193332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Chen QW, Shan HL, Sun HL, Wang H, Yang BF. [Effects of cyclovirobuxine D on intracellular Ca2+ and L-type Ca2+ current in rat ventricular cardiomyocytes]. Yao Xue Xue Bao 2004; 39:500-3. [PMID: 15493836] [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] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
AIM To determine the effects of cyclovirobuxine D (CD) on intracellular Ca2+ mobilization and L-type Ca2+ current (I(Ca-L)) in isolated rat cardiomyocytes. METHODS The effects of CD on the amplitude of I(Ca-L) and intracellular Ca2+ mobilization induced by KCl and caffeine were studied with the method of patch-clamp technique and laser scanning confocal microscopy in rat ventricular myocytes. RESULTS CD decreased the amplitude of I(Ca-L) in a concentration-dependent manner. At 10 mV, 1 and 10 micromol x L(-1) CD decreased I(Ca-L) density from (- 9.9 +/- 1.8) pA/pF to (-6.4 +/- 1.4) and (-4.2 +/- 0.6) pA/pF, respectively. Confocal experiments showed that intracellular fluorescent intensity (FI) value of [Ca2+] in control resting level was not changed by 1 and 10 micromol x L(-1) CD. [Ca2+] increase in response to KCl could not be reduced by CD. The rise of [Ca2+]i in response to caffeine was further enhanced by pretreatment with CD. CONCLUSION CD decreased I(Ca,L) in a concentration-dependent manner and increased [Ca2+]i release induced by caffeine in rat ventricular cardiomyocytes.
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Affiliation(s)
- Qing-Wen Chen
- Department of Pharmacology, Harbin Medical University, Harbin 150086, China
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Shan HL, Zhang XD, Gu RM, Luo DL, Yang BF. Effects of erysimin G on renal tubular function and 70-pS K+ channel activity of thick ascending limb. Acta Pharmacol Sin 2001; 22:411-4. [PMID: 11743887] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
AIM To study the effect of erysimin G (CH35H52O13) on the thick ascending limb (TAL) 70-pS K+ channel of rat kidney and its effect on diuresis. METHODS The patch-clamp cell-attached recording technique was used to record the single potassium channel current, and the urine volume (UV) was measured by urethral intubation to determine the diuretic effect. RESULTS Erysimin G can increase the urine volume and decrease the 70-pS potassium channel activity of TAL. CONCLUSION Erysimin G has a diuretic effect and its inhibition on the activity of apical 70-pS potassium channel may be the mechanism of its diuretic effect.
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Affiliation(s)
- H L Shan
- Department of Pharmacology, Harbin Medical University, Harbin 150086, China
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