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Li D, Li T, Yang X, Wang H, Chu J, Dong H, Lu P, Tao J, Cao P, Jin J, Xuan YH. Carbon nanosol promotes plant growth and broad-spectrum resistance. Environ Res 2024; 251:118635. [PMID: 38462083 DOI: 10.1016/j.envres.2024.118635] [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] [Received: 12/27/2023] [Revised: 02/04/2024] [Accepted: 03/04/2024] [Indexed: 03/12/2024]
Abstract
Carbon nanosol (CNS) is a carbon-based nanomaterial capable of promoting plant growth while the underlying mechanism involved in this process remains unknown. This study demonstrates that CNS promotes rice seedling growth under restricted concentrations. Macroelement transporter mutants were investigated to further investigate the CNS-mediated promotion of rice seedling growth. The genetic and physiological findings revealed that nitrate transporter 1.1B (NRT1.1B) and ammonium transporter 1 (AMT1) mutants inhibited the CNS-induced growth development of rice seedlings, whereas potassium transporter (AKT1) and phosphate transporter 8 (PT8) did not exhibit any inhibitory effects. Further investigations demonstrated the inhibition of CNS-mediated growth promotion via glutamine synthetase 1;1 (gs1;1) mutants. Additionally, the administration of CNS resulted in enhanced accumulation of chlorophyll in plants, and the promotion of CNS-induced growth was inhibited by yellow-green leaf 8 (YGL8) mutants and the chlorophyll biosynthetic gene divinyl reductase (DVR) mutants. According to these findings, the CNS promotes plant growth by stimulating chlorophyll biosynthesis. Furthermore, the presence of CNS enhanced the ability of rice to withstand blast, sheath blight (ShB), and bacterial blight. The nrt1.1b, amt1, dvr, and ygl8 mutants did not exhibit a broad spectrum effect. The positive regulation of broad-spectrum resistance in rice by GS1;1 suggests the requirement of N assimilation for CNS-mediated broad-spectrum resistance. In addition, an in vitro assay demonstrated that CNS inhibits the growth of pathogens responsible for blast, ShB, and bacterial blight, namely Magnaporthe oryzae, Rhizoctonia solani AG1-IA, and Xanthomonas oryzae pv. Oryzae, respectively. CNS application may also induce broad-spectrum resistance against bacterial and fungal pathogens, indicating that in addition to its antifungal and antibacterial properties, CNS application may also stimulate N assimilation. Collectively, the results indicate that CNS may be a potential nano-therapeutic agent for improved plant growth promotion while also providing broad-spectrum resistance.
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Affiliation(s)
- Dandan Li
- State Key Laboratory of Elemento-Organic Chemistry and Department of Plant Protection, National Pesticide Engineering Research Center (Tianjin), Nankai University, Tianjin, 300071 China; College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Tianmiao Li
- State Key Laboratory of Elemento-Organic Chemistry and Department of Plant Protection, National Pesticide Engineering Research Center (Tianjin), Nankai University, Tianjin, 300071 China; College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xujie Yang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Hujun Wang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jin Chu
- Institute of Plant Protection, Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China.
| | - Hai Dong
- Institute of Plant Protection, Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China.
| | - Peng Lu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China.
| | - Jiemeng Tao
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China.
| | - Peijian Cao
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China; Beijing Life Science Academy, Beijing 102200, China.
| | - Jingjing Jin
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China; Beijing Life Science Academy, Beijing 102200, China.
| | - Yuan Hu Xuan
- State Key Laboratory of Elemento-Organic Chemistry and Department of Plant Protection, National Pesticide Engineering Research Center (Tianjin), Nankai University, Tianjin, 300071 China.
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Jakobsson M. "I'm not sure if it works": School nurses' experiences of sleep-promoting work in Sweden. Sleep Health 2024:S2352-7218(23)00327-3. [PMID: 38245476 DOI: 10.1016/j.sleh.2023.12.009] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/22/2024]
Abstract
OBJECTIVES Lack of sleep is a common problem in children and adolescents of school age (students), and it is a health aspect that affects the ability to assimilate into the school's education and thereby falls within the school nurses promoting work. This study aimed to describe school nurses' experiences of sleep-promoting work. METHOD Data were collected by n = 61 school nurses' written narratives of their sleep-promotion work. Data were analyzed using qualitative content analysis. RESULTS The results describe school nurses' experiences of sleep-promoting work in three main categories: (1) Informing and providing knowledge is the primary task. School nurses do it systematically, through dialogs with an individual student, with several students simultaneously, or with parents. (2) Benefits take place when the needs of the student guide the work. Through curiosity about the personal story, the keys to sleep-promoting work can be found, appropriate strategies can be given, and the student can be guided further if needed. (3) Barriers challenge the outcome of the work. The school nurses experience these barriers in the form of unmotivated students, unsupportive parents, and lack of prerequisites, which make the school nurses unsure of their performance. CONCLUSIONS School nurses experience a significant benefit in their sleep-promoting work when the needs of the student guide the sleep-promoting information, strategies, and follow-ups. To avoid feeling insecure in sleep-promoting work, school nurses need updates on the state of knowledge and evidence-based tools. Further research on sleep-promoting work at school is necessary.
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Affiliation(s)
- Malin Jakobsson
- Department of Nursing, School of Health and Welfare, Jönköping University, Jönköping, Sweden; CHILD-Research Group, Jönköping University, Jönköping, Sweden.
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Ma X, Liu S, Liu Y, Li X, Li Q, Gu G, Xia C. Promoted liquid-phase hydrodechlorination of chlorophenol over Raney Ni via controlling base: Performance, mechanism, and application. Chemosphere 2020; 242:125202. [PMID: 31677512 DOI: 10.1016/j.chemosphere.2019.125202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 10/15/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
The potential effect of base on Raney Ni-catalyzed hydrodechlorination (HDC) of chlorophenol was studied. Compared to weak inorganic bases, strong inorganic bases (NaOH and KOH) and triethylamine (Et3N) were more favorable to promote Raney Ni-catalyzed HDC reaction. Moreover, a stoichiometric amount of NaOH/Et3N was found to be optimal for the HDC reaction, and up to 100% conversion of 4-chlorophenol was achieved within 30 min. Catalyst characterization (SEM, EDXS, and XRD) combined with ICP-OES analysis were introduced to better understand the mechanism for the promoted effect of base on the HDC reaction. The results showed that the optimal amount of strong inorganic bases and Et3N efficiently eliminated HCl corrosion to Raney Ni, greatly reduced the active phase Ni and Al leaching, and avoided collapse of the catalyst framework. Based on the mechanism, the best bases and their optimal amount were developed for further disposal of polychlorinated phenols, and excellently stepwise HDC of polychlorinated phenols was achieved. Recycling tests showed that Raney Ni could be reused at least 5 times for the HDC reaction with the stoichiometric amount of NaOH, which was a promising option for the HDC of wastewater containing chlorophenols over Raney Ni.
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Affiliation(s)
- Xuanxuan Ma
- The Institute for Advanced Study of Coastal Ecology, School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, China; Fujian Provincial Colleges and University Engineering Research Center of Solid Waste Resource Utilization, Longyan University, Longyan, 364012, China
| | - Sujing Liu
- The Institute for Advanced Study of Coastal Ecology, School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, China
| | - Ying Liu
- The Institute for Advanced Study of Coastal Ecology, School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, China
| | - Xiaoqiang Li
- School of Environment and Materials Engineering, Yantai University, Yantai, 264005, China
| | - Qing Li
- Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Guodong Gu
- Alliance Pharma, Inc. 17 Lee Boulevard Malvern, PA, 19355, USA
| | - Chuanhai Xia
- The Institute for Advanced Study of Coastal Ecology, School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, China.
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Wang J, Li R, Zhang H, Wei G, Li Z. Beneficial bacteria activate nutrients and promote wheat growth under conditions of reduced fertilizer application. BMC Microbiol 2020; 20:38. [PMID: 32085752 PMCID: PMC7035779 DOI: 10.1186/s12866-020-1708-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/17/2020] [Indexed: 12/28/2022] Open
Abstract
Background Excessive application of chemical fertilizer has exerted a great threat to soil quality and the environment. The inoculation of plants with plant-growth-promoting rhizobacteria (PGPR) has emerged as a great prospect for ecosystem recovery. The aim of this work to isolate PGPRs and highlights the effect of bacterial inoculants on available N/P/K content in soil and on the growth of wheat under conditions of reduced fertilizer application. Results Thirty-nine PGPRs were isolated and tested for their growth-promoting potential. Thirteen isolates had nitrogen fixation ability, of which N9 (Azotobacter chroococcum) had the highest acetylene reduction activity of 156.26 nmol/gh. Eleven isolates had efficient phosphate solubilizing ability, of which P5 (Klebsiella variicola) released the most available phosphorus in liquid medium (231.68 mg/L). Fifteen isolates had efficient potassium solubilizing ability, of which K13 (Rhizobium larrymoorei) released the most available potassium in liquid medium (224.66 mg/L). In culture medium supplemented with tryptophan, P9 (Klebsiella pneumoniae) produced the greatest amount of IAA. Inoculation with the bacterial combination K14 + 176 + P9 + N8 + P5 increased the alkali-hydrolysed nitrogen, available phosphorus and available potassium in the soil by 49.46, 99.51 and 19.38%, respectively, and enhanced the N, P, and K content of wheat by 97.7, 96.4 and 42.1%, respectively. Moreover, reducing fertilizer application by 25% did not decrease the available nitrogen, phosphorus, and potassium in the soil and N/P/K content, plant height, and dry weight of wheat. Conclusions The bacterial combination K14 + 176 + P9 + N8 + P5 is superior candidates for biofertilizers that may reduce chemical fertilizer application without influencing the normal growth of wheat.
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Affiliation(s)
- Juanjuan Wang
- Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - Ruochen Li
- Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - Hui Zhang
- Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - Gehong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A&F University, Yangling, Shaanxi, China.,Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - Zhefei Li
- Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Science, Northwest A&F University, Yangling, Shaanxi, China.
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Bin X, Hongjian Y, Xiping Z, Bo C, Shifeng Y, Binbin T. Research progresses in roles of LncRNA and its relationships with breast cancer. Cancer Cell Int 2018; 18:179. [PMID: 30459529 PMCID: PMC6233376 DOI: 10.1186/s12935-018-0674-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 11/01/2018] [Indexed: 12/21/2022] Open
Abstract
Some progresses have been made in research of long non-coding RNA (hereunder referred to as LncRNA) related to breast cancer. Lots of data about LncRNA transcription concerning breast cancer have been obtained from large-scale omics research (e.g. transcriptomes and chips). Some LncRNAs would become indices for detecting breast cancer and judging its development and prognosis. LncRNAs may affect genesis and development of breast cancer in multiple ways. Perhaps they could develop into potential targets for treating breast cancer if they are carcinogenic. Like those from other studies of breast cancer, many data gained from omics research remain to be validated by much experimental work. For instance, it is still necessary to demonstrate reliability of LncRNAs as indices for diagnosing breast cancer and judging its prognosis (particularly for various subtypes of breast cancer), effectiveness and feasibility of these genes for treating breast cancer as targets. In this paper, recent years’ literatures about LncRNAs which are related to breast cancer are summarized and sorted out to review the research progresses in relationships between LncRNAs and breast cancer.
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Affiliation(s)
- Xu Bin
- Department of Surgery, Zhejiang Rehabilitation Medical Center, Hangzhou, 310053 Zhejiang, China
| | - Yang Hongjian
- 2Department of Breast Surgery, Zhejiang Cancer Hospital, Banshanqiao, No. 38 Guangji Road, Hangzhou, 310022 Zhejiang China
| | - Zhang Xiping
- 2Department of Breast Surgery, Zhejiang Cancer Hospital, Banshanqiao, No. 38 Guangji Road, Hangzhou, 310022 Zhejiang China
| | - Chen Bo
- 3Department of Pathology, Zhejiang Cancer Hospital, Hangzhou, 310022 Zhejiang, China
| | - Yang Shifeng
- 3Department of Pathology, Zhejiang Cancer Hospital, Hangzhou, 310022 Zhejiang, China
| | - Tang Binbin
- 4Second Outpatient Department of Traditional Chinese Internal Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, 310012 Zhejiang, China
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Li M, Su Y, Chen Y, Wan R, Zheng X, Liu K. The effects of fulvic acid on microbial denitrification: promotion of NADH generation, electron transfer, and consumption. Appl Microbiol Biotechnol 2016; 100:5607-18. [PMID: 26894403 DOI: 10.1007/s00253-016-7383-1] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/01/2016] [Accepted: 02/03/2016] [Indexed: 12/16/2022]
Abstract
The heterotrophic denitrification requires the participation of electrons which are derived from direct electron donor (usually nicotinamide adenine dinucleotide (NADH)), and the electrons are transferred via electron transport system in denitrifiers and then consumed by denitrifying enzymes. Despite the reported electron transfer ability of humic substances (HS), the influences of fulvic acid (FA), an ubiquitous major component of HS, on promoting NADH generation, electron transfer, and consumption in denitrification process have never been reported. The presence of FA, compared with the control, was found not only significantly improved the total nitrogen (TN) removal efficiency (99.9 % versus 74.8 %) but remarkably reduced the nitrite accumulation (0.2 against 43.8 mg/L) and N2O emission (0.003 against 0.240 mg nitrogen/mg TN removed). The mechanisms study showed that FA increased the metabolism of carbon source via glycolysis and tricarboxylic acid (TCA) cycle pathways to produce more available NADH. FA also facilitated the electron transfer activities from NADH to denitrifying enzymes via complex I and complex III in electron transport system, which improved the reduction of nitrate and accelerated the transformations of nitrite and N2O, and lower nitrite and N2O accumulations were therefore observed. In addition, the consumption of electrons in denitrification was enhanced due to FA stimulating the synthesis and the catalytic activity of key denitrifying enzymes, especially nitrite reductase and N2O reductase. It will provide an important new insight into the potential effect of FA on microbial denitrification metabolism process and even nitrogen cycle in nature niches.
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Affiliation(s)
- Mu Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Yinglong Su
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Rui Wan
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xiong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Kun Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
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