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RESEARCH PROGRESS ON THE IMPACT OF NITROGEN DEPOSITION ON GLOBAL GRASSLANDS
《农业科学与工程前沿(英文)》 2022年 第9卷 第3期 页码 425-444 doi: 10.15302/J-FASE-2022457
● Grasslands in many regions of the world have been impacted by atmospheric nitrogen deposition.
关键词: Acidification biomass production critical load eutrophication species composition species richness
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 387-399 doi: 10.15302/J-FASE-2021414
Modern agriculture needs to develop transition pathways toward agroecological, resilient and sustainable farming systems. One key pathway for such agroecological intensification is the diversification of cropping systems using intercropping and notably cereal-grain legume mixtures. Such mixtures or intercrops have the potential to increase and stabilize yields and improve cereal grain protein concentration in comparison to sole crops. Species mixtures are complex and the 4C approach is both a pedagogical and scientific way to represent the combination of four joint effects of Competition, Complementarity, Cooperation, and Compensation as processes or effects occurring simultaneously and dynamically between species over the whole cropping cycle. Competition is when plants have fairly similar requirements for abiotic resources in space and time, the result of all processes that occur when one species has a greater ability to use limiting resources (e.g., nutrients, water, space, light) than others. Complementarity is when plants grown together have different requirements for abiotic resources in space, time or form. Cooperation is when the modification of the environment by one species is beneficial to the other(s). Compensation is when the failure of one species is compensated by the other(s) because they differ in their sensitivity to abiotic stress. The 4C approach allows to assess the performance of arable intercropping versus classical sole cropping through understanding the use of abiotic resources.
关键词: compensation competition complementarity cooperation interspecific interactions land equivalent ratio light nutrients species mixtures water
COMPARING PERFORMANCE OF CROP SPECIES MIXTURES AND PURE STANDS
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 481-489 doi: 10.15302/J-FASE-2021413
Intercropping is the planned cultivation of species mixtures on agricultural land. Intercropping has many attributes that make it attractive for developing a more sustainable agriculture, such as high yield, high resource use efficiency, lower input requirements, natural suppression of pests, pathogens and weeds, and building a soil with more organic carbon and nitrogen. Information is needed which species combinations perform best under different circumstances and which management is suitable to bring out the best from intercropping in a given production situation. The literature is replete with case studies on intercropping from across the globe, but evidence synthesis is needed to make this information accessible. Meta-analysis requires a careful choice of metric that is appropriate for answering the question at hand, and which lends itself for a robust meta-analysis. This paper reviews some metrics that may be used in the quantitative synthesis of literature data on intercropping.
关键词: intercropping species mixtures meta-analysis metrics indicators
Tracking in urban wastewater treatment plants in a cold region: Occurrence, species and infectivity
《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1533-8
• Cryptosporidium in WWTPs in a cold region was investigated in different seasons.
关键词: WWTPs Cryptosporidium Occurrence Species Infectivity Low temperature
IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 635-644 doi: 10.15302/J-FASE -2020343
The antifungal effectiveness of extracts of five medicinal plant species was determined. The inhibitory activity of extracts of Eucalyptus tereticornis, Xanthium sibiricum, Artemisia argyi, Tupistra chinensis and Pyrola calliantha were evaluated against the mycelial growth of the plant pathogenic fungi Aspergillus niger, Botrytis cinerea, Penicillium digitatum, P. expansum, P. italicumand Rhizopus stolonifer. All plant extracts were prepared at 60°C using solvents (either water, 50% ethanol (v/v), 95% ethanol (v/v), ethyl acetate or petroleum ether). Fungicidal effects of all plants tested were confirmed. Different extracts from the same plant species gave different degrees of inhibition. All aqueous extracts had weak or no activity on all fungi tested. Ethyl acetate and 95% ethanol extracts from T. chinensis rhizomes gave greater inhibition and a broader spectrum inhibition than the other extracts. T. chinensis may have potential as a new natural fungicide and may be used for the preservation of agricultural and forestry products such as fruits and vegetables.
关键词: Botrytis cinerea / food preservation / plant diseases / plant pathogenic fungi / Tupistra chinensis
Roles of various Ni species on TiO
Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN
《能源前沿(英文)》 2019年 第13卷 第4期 页码 684-690 doi: 10.1007/s11708-018-0585-8
《化学科学与工程前沿(英文)》 2021年 第15卷 第6期 页码 1524-1536 doi: 10.1007/s11705-021-2106-2
关键词: Ce–Zr–Cu–O CO oxidation reducible copper species oxygen vacancy cooperative effect
《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-021-1489-0
• UV/VUV/I– induces substantial H2O2 and IO3– formation, but UV/I– does not.
关键词: Vacuum ultraviolet Hydrogen peroxide Iodate Hydroxyl radical Redox transition
NADPH oxidase and reactive oxygen species as signaling molecules in carcinogenesis
Gang WANG
《医学前沿(英文)》 2009年 第3卷 第1期 页码 1-7 doi: 10.1007/s11684-009-0018-5
关键词: free radicals tumor phox cell proliferation cancer therapy
null
《医学前沿(英文)》 2014年 第8卷 第2期 页码 227-235 doi: 10.1007/s11684-014-0327-1
Accelerated senescence is important because this process is involved in tumor suppression and has been induced by many chemotherapeutic agents. The platinum-based chemotherapeutic agent cisplatin displays a wide range of antitumor activities. However, the molecular mechanism of cisplatin-induced accelerated senescence in hepatocellular carcinoma (HCC) remains unclear. In the present study, the growth inhibitory effect of cisplatin on HepG2 and SMMC-7721 cells was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Cellular senescence was then assessed by β-galactosidase assay. Senescence-related factors, including p53, p21, and p16, were evaluated by quantitative reverse transcription-polymerase chain reaction. Reactive oxygen species (ROS) was analyzed by flow cytometry. Our results revealed that cisplatin reduced the proliferation of HepG2 and SMMC-7721 cells in a dose- and time-dependent manner. Senescent phenotype observed in cisplatin-treated hepatoma cells was dependent on p53 and p21 activation but not on p16 activation. Furthermore, cisplatin-induced accelerated senescence depended on intracellular ROS generation. The ROS scavenger N-acetyl-L-cysteine also significantly suppressed the cisplatin-induced senescence of HepG2 and SMMC-7721 cells. In conclusion, our results revealed a functional link between intracellular ROS generation and cisplatin-induced accelerated senescence, and this link may be used as a potential target of HCC.
关键词: reactive oxygen species senescence cisplatin hepatocellular carcinoma
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 460-473 doi: 10.15302/J-FASE-2021416
The EIP-Agri multiactor approach was exemplified during a 3-day workshop with 63 project participants from the EU H2020 funded project “Redesigning European cropping systems based on species MIXtures”. The objective was to share firsthand experience of participatory research among researchers who were mostly not familiar with this approach. Workshop participants were divided into smaller multidisciplinary groups and given the opportunity to interact with representatives from eight actor positions in the value chain of the agrifood cooperative Terrena located in Western France. The four stages of the workshop were: (1) key actor interviews, (2) sharing proposed solutions for overcoming barriers, and (3) developing possible interdisciplinary concepts. Expressions of frustration were recorded serving both as a motivation for group members to become more aware of the scientific concerns and practices of their colleagues, as well as a recognition that some researchers have better skills integrating qualitative approaches than others. Nevertheless, the workshop format was an effective way to gain a common understanding of the pertinent issues that need to be addressed to meet overall multiactor-approach objectives. Working with the actor networks was identified and emphasized as a means to overcome existing barriers between academia and practice in order to coproduce a shared vision of the benefits of species mixture benefits.
关键词: agroecology codesign intercropping knowledge sharing participatory methods
Qin WANG, Chunmei GENG, Sihua LU, Wentai CHEN, Min SHAO
《环境科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 66-76 doi: 10.1007/s11783-012-0428-5
关键词: residential combustion coal crop residue briquette emission factors gaseous carbonaceous species
Yafang Shi, Yunchao Dai, Ziwen Liu, Xiaofeng Nie, Song Zhao, Chi Zhang, Hanzhong Jia
《环境科学与工程前沿(英文)》 2020年 第14卷 第6期 doi: 10.1007/s11783-020-1285-2
关键词: Peat Humic substances Environmentally persistent free radicals Light irradiation Reactive radical species
species associated with eucalypt diseases in southern China
Shuaifei CHEN, Qianli LIU, Guoqing LI, Michael J. WINGFIELD
《农业科学与工程前沿(英文)》 2017年 第4卷 第4期 页码 433-447 doi: 10.15302/J-FASE-2017173
关键词: Corymbia Eucalyptus forest pathogens plantations Myrtaceae
Jun Song, Yeping Huang, Wenjian Zheng, Jing Yan, Min Cheng, Ruxing Zhao, Li Chen, Cheng Hu, Weiping Jia
《医学前沿(英文)》 2018年 第12卷 第6期 页码 697-706 doi: 10.1007/s11684-018-0655-7
Oxidative stress induced by free fatty acid aggravates endothelial injury, which leads to diabetic cardiovascular complications. Reduction of intracellular oxidative stress may attenuate these pathogenic processes. The dietary polyphenol resveratrol reportedly exerts potential protective effects against endothelial injury. This study determined whether resveratrol can reduce the palmitic acid (PA)-induced generation of reactive oxygen species (ROS) and further explored the underlying molecular mechanisms. We found that resveratrol significantly reduced the PA-induced endothelial ROS levels in human aortic endothelial cells. Resveratrol also induced endothelial cell autophagy, which mediated the effect of resveratrol on ROS reduction. Resveratrol stimulated autophagy via the AMP-activated protein kinase (AMPK)-mTOR pathway. Taken together, these data suggest that resveratrol prevents PA-induced intracellular ROS by autophagy regulation via the AMPK-mTOR pathway. Thus, the induction of autophagy by resveratrol may provide a novel therapeutic candidate for cardioprotection in metabolic syndrome.
关键词: resveratrol reactive oxygen species AMPK mTOR autophagy
标题 作者 时间 类型 操作
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
期刊论文
Tracking in urban wastewater treatment plants in a cold region: Occurrence, species and infectivity
期刊论文
Roles of various Ni species on TiO
Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN
期刊论文
Cooperative effect between copper species and oxygen vacancy in CeZrCuO catalysts for carbon monoxide
期刊论文
understanding vacuum ultraviolet–iodide induced photolysis via hydrogen peroxide formation, iodine species
期刊论文
Reactive oxygen species generation is essential for cisplatin-induced accelerated senescence in hepatocellular
null
期刊论文
TRANSLATING THE MULTI-ACTOR APPROACH TO RESEARCH INTO PRACTICE USING A WORKSHOP APPROACH FOCUSING ON SPECIES
期刊论文
Emission factors of gaseous carbonaceous species from residential combustion of coal and crop residue
Qin WANG, Chunmei GENG, Sihua LU, Wentai CHEN, Min SHAO
期刊论文
Light-induced variation in environmentally persistent free radicals and the generation of reactive radical species
Yafang Shi, Yunchao Dai, Ziwen Liu, Xiaofeng Nie, Song Zhao, Chi Zhang, Hanzhong Jia
期刊论文
species associated with eucalypt diseases in southern China
Shuaifei CHEN, Qianli LIU, Guoqing LI, Michael J. WINGFIELD
期刊论文