|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Increased activity of MdFRK2, a high-affinity fructokinase, leads to upregulation of sorbitol metabolism and downregulation of sucrose metabolism in apple leaves显示文摘To investigate the functions of fructokinase(FRK)in apple(Malus domestica)carbohydrate metabolism,we cloned the coding sequences of MdFRK1 and MdFRK2 from the‘Royal Gala’apple.The results showed that MdFRK2 expression was extremely high in shoot tips and young fruit.Analyses of heterologously expressed proteins revealed that MdFRK2 had a higher affinity for fructose than did MdFRK1,with Km values of 0.1 and 0.62 mM for MdFRK2 and MdFRK1,respectively.The two proteins,however,exhibited similar Vmax values when their activities were significantly inhibited by high concentrations of fructose.MdFRK2 ectopic expression was associated with a general decrease in fructose concentration in transgenic lines.In leaves,increased FRK activity similarly resulted in reduced concentrations of glucose and sucrose but no alterations in sorbitol concentration.When compared with those in the untransformed control,genes involved in sorbitol synthesis(A6PR)and the degradation pathway(SDH1/2)were significantly upregulated in transgenic lines,whereas those involved in sucrose synthesis(SPS1)and other degradation processes(SUSY4,NINV1/2,and HxK2)were downregulated.The activity of enzymes participating in carbohydrate metabolism was proportional to the level of gene expression.However,the growth performance and photosynthetic efficiency did not differ between the transgenic and wild-type plants.These results provide new genetic evidence to support the view that FRK plays roles in regulating sugar and sorbitol metabolism in Rosaceae plants. | Jingjing Yang Lingcheng Zhu Weifang Cui Chen Zhang Dongxia Li Baiquan Ma Lailiang Cheng Yong-Ling Ruan Fengwang Ma Mingjun Li | 2018 | Horticulture Research2018，5，1： | 9 |
| 2 | Construction of WO_(3)/Ti-doped WO_(3)bi-layer nanopore arrays with superior electrochromic and capacitive performances显示文摘Crystalline WO_(3)/Ti-doped WO_(3)bi-layer nanopore arrays were constructed by the template synthesis of a WO_(3)nanopore layer modified by a magnetron sputtering of an amorphous Ti-doped/WO_(3)layer.The obtained bi-layer nanopore array shows a remarkable electrochromic performance with large dual-band optical modulation in both visible(VIS)and near infrared(NIR)regions(optical modulation of over 70%in the wavelength range from 600 to 1600 nm)and the fast response speed(coloring for 3.4 s and bleaching for 6.6 s).In addition,the bi-layer WO_(3)/Ti-doped WO_(3)nanopore array also present superior energy-storage properties(areal capacitance of 44.0 mF cm−2 and good rate capability),better than that of titanium-free thin films.The special bifunctional characteristics of electrochromism and pseudocapacitance can be ascribed to the large specific surface area provided by the architectural design,rich ion channels in the amorphous layer as well as proper titanium doping,which bestows the bi-layer nanopore array a great potential in clean energy applications. | Yingdi Shi Shujing Liu Yong Zhang Mingjun Sun Kai Tang Jiewu Cui Xia Shu Yan Wang Jiaqin Liu Yucheng Wu | 2019 | Tungsten2019，1，3： | 2 |
| 3 | Anomalous enhancement oxidation of few-layer MoS_(2)and MoS_(2)/h-BN heterostructure显示文摘Because of profound applications of two-dimensional molybdenum disulfide(MoS_(2))and its heterostructures in electronics,its thermal stability has been spurred substantial interest.We employ a precision muffle furnace at a series of increasing temperatures up to 340℃to study the oxidation behavior of continuous MoS_(2)films by either directly growing mono-and fewlayer MoS_(2)on SiO_(2)/Si substrate,or by mechanically transferring monolayer MoS_(2)or hexagonal boron nitride(h-BN)onto monolayer MoS_(2)substrate.Results show that monolayer MoS_(2)can withstand high temperature at 340℃with less oxidation while the few-layer MoS_(2)films are completely oxidized just at 280℃,resulting from the growth-induced tensile strain in few-layer MoS_(2).When the tensile strain of films is released by transfer method,the stacked few-layer MoS_(2)films exhibit superior thermal stability and typical layer-by-layer oxidation behavior at similarly high temperature.Counterintuitively,for the MoS_(2)/h-BN heterostructure,the h-BN film itself stacked on top is not damaged and forms many bubbles at 340℃,whereas the underlying monolayer MoS_(2)film is oxidized completely.By comprehensively using various experimental characterization and molecular dynamics calculations,such anomalous oxidation behavior of MoS_(2)/h-BN heterostructure is mainly due to the increased tensile strain in MoS_(2)film at elevated temperature. | Siming Ren Yanbin Shi Chaozhi Zhang Mingjun Cui Jibin Pu | 2022 | Nano Research2022，15，8： | 0 |
| 4 | Acute Effects of Low Temperatures and Cold Waves on Elderly Infectious Pneumonia Mortality—Jinan City,Shandong Province,China,2014-2022显示文摘Summary What is already known about this topic?The mortality rate due to pneumonia varies depending on the infectious agents present in a low-temperature environment.What is added by this report?This study aimed to examine the relationship between low temperatures and cold waves and the risk of mortality from infectious pneumonia in the elderly.The findings indicate a significant increase in the risk of infectious pneumonia. | Huiyun Chang Mingjun Li Ying Wang Liangliang Cui Tiantian Li | 2024 | China CDC weekly2024，6，5： | 0 |
| 5 | Thin-interbedded reservoirs prediction based on seismic sedimentology显示文摘Interference of thin-interbedded layers in seismic reflections has great negative impact on thin-interbedded reservoirs prediction.To deal with this,two novel methods are proposed that can predict the thin-interbedded reservoirs distribution through strata slices by suppressing the interference of adjacent layer with the help of seismic sedimentology.The plane distribution of single sand bodies in thin-interbedded reservoirs can be clarified.(1)The minimum interference frequency slicing method,uses the amplitude-frequency attribute estimated by wavelet transform to find a constant seismic frequency with the minimum influence on the stratal slice of target layer,and then an optimal slice corresponding the constant frequency mentioned above can be obtained.(2)The superimposed slicing method can calculate multiple interference coefficients of reservoir and adjacent layers of target geological body,and obtain superimposed slice by weighted stacking the multiple stratal slices of neighboring layers and target layer.The two proposed methods were used to predict the distribution of the target oil layers of 6 m thick in three sets of thin-interbedded reservoirs of Triassic Kelamayi Formation in the Fengnan area of Junggar Basin,Northwestern China.A comparison with drilling data and conventional stratal slices shows that the two methods can predict the distribution of single sand bodies in thin-interbedded reservoirs more accurately. | NI Changkuan SU Mingjun YUAN Cheng LIU Huaqing CUI Xiangli | 2022 | Petroleum Exploration and Development2022，49，4： | 0 |
| 6 | Safety Evaluation of Tongchui Baihua Capsule显示文摘[Objectives]The study aimed to evaluate the safety of Tongchui Baihua capsule.[Methods]Long-term toxicology experiment was adopted,the rats were randomly divided into control group and administration group according to the gender of male and female;the drug administration group was given different doses of Tongchui Baihua capsules,and the drug was administered by continuous gavage for 13 weeks;the general conditions,haematological indexes,blood biochemical indexes and visceral coefficients of the rats were detected at the 13th week and 4 weeks after the drug withdrawal respectively,and the toxic symptoms were observed.[Results]The rats were given Tongchui Baihua capsule in different doses by gavage for 13 weeks,and no obvious toxicity was observed in weight,haematological indexes,blood biochemical indexes and histopathology.[Conclusions]Under the condition of long-term toxicity experiment,Tongchui Baihua capsule was safe for rats. | Kaicong FU Mingjun CUI Jian LUO Lihong FU Kai NI Min GAO | 2020 | Medicinal Plant2020，11，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员