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| 1 | A 2-kb Mycovirus Converts a Pathogenic Fungus into a Beneficial Endophyte for Brassica Protection and Yield Enhancement显示文摘Mycoviruses are viruses that infect fungi,and hypovirulence-associated mycoviruses have the potential to control fungal diseases.However,it is unclear how mycovirus-mediated hypovirulent strains live and survive in the field,and no mycovirus has been applied for field crop protection.In this study,we found that a previously identified small DNA mycovirus(SsHADV-1)can convert its host,Sclerotinia sclerotiorum,from a typical necrotrophic pathogen to a beneficial endophytic fungus.SsHADV-1 downregulates the expression of key pathogenicity factor genes in S.sclerotiorum during infection.When growing in rapeseed,the SsHADV-1-infected strain DT-8 significantly regulates the expression of rapeseed genes involved in defense,hormone signaling,and circadian rhythm pathways.As a result,plant growth is promoted and disease resistance is enhanced.Field experiments showed that spraying DT-8 at the early flowering stage can reduce the disease severity of rapeseed stem rot by 67.6%and improve yield by 14.9%.Moreover,we discovered that SsHADV-1 could also infect other S.sclerotiorum strains on DT-8-inoculated plants and that DT-8 could be recovered from dead plants.These findings suggest that the mycoviruses may have the ability to shape the origin of endophytism.Our discoveries suggest that mycoviruses may influence the origin of endophytism and may also offer a novel strategy for disease control in which mycovirus-infected strains are used to improve crop health and release mycoviruses into the field. | Hongxiang Zhang Jiatao Xie Yanping Fu Jiasen Cheng Zheng Qu Zhenzhen Zhao Shufen Cheng Tao Chen Bo Li Qianqian Wang Xinqiang Liu Binnian Tian David B.Collinge Daohong Jiang | 2020 | Molecular Plant2020，13，10： | 9 |
| 2 | Ice core dust particulate by XPS-SEM/EDAX——Impact of dust particulate on SO_4^(2-) record in ice cores显示文摘The ice core dust particulate sampled from Mt. Xixabangma has been analyzed by means of X-ray photoelectron spectrometer (XPS) and scanning electron microscope with energy dispersion X-ray analysis (SEM/EDAX). The results show that the contents of SO42- and SO32- in the surface layer of the dust are significantly higher than those in the subsurface layer (with the exception of organic sulfide). This difference indicates that the surface SOx has been captured and then chemically converted by the atmospheric dust particulate before its deposition with snow, which is obviously different from those inner layer sulfates and sulfites contained by dust itself. In addition, it has been determined by SEM/EDAX that the dust contains relatively high concentrations of transition metal elements such as Fe and Ti oxides which could function as photocatalysts to the conversion of SOx adhered on the surface of the dust, and consequently accelerate the deposition of SOx to snow. Our research also | LI Zhongqin , LU Gongxuan , LIU Baozhong , FU Hongxiang LIU YuTianshan Glaciological Station , Lanzhou Institute of Glaciology and Geocryology , Chinese Academy of Sciences , Lanzhou 730000,China State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics , Chinese Academy ofSciences , Lanzhou 730000, China, | 1999 | Chinese Science Bulletin1999，44，15： | 4 |
| 3 | Coupled carbon and sulfur isotope behaviors and other geochemical perspectives into marine methane seepage显示文摘Methane seepage is the signal of the deep hydrocarbon reservoir. The determination of seepage is significant to the exploration of petroleum, gas and gas hydrate. The seepage habits microbial and macrofaunal life which is fueled by the hydrocarbons, the metabolic byproducts facilitate the precipitation of authigenic minerals. The study of methane seepage is also important to understand the oceanographic condition and local ecosystem. The seepage could be active or quiescent at different times. The geophysical surveys and the geochemical determinations reveal the existence of seepage. Among these methods, only geochemical determination could expose message of the dormant seepages. The active seepage demonstrates high porewater methane concentration with rapid SO_4^(2–) depleted, low H_2S and dissolved inorganic carbon(DIC), higher rates of sulfate reduction(SR) and anaerobic oxidation of methane(AOM). The quiescent seepage typically develops authigenic carbonates with specific biomarkers, with extremely depleted ~13C in gas, DIC and carbonates and with enriched ~34S sulfate and depleted ~34S pyrite. The origin of methane, minerals precipitation, the scenario of seepage and the possible method of immigration could be determined by the integration of solutes concentration, mineral composition and isotopic fractionation of carbon, sulfur. Numerical models with the integrated results provide useful insight into the nature and intensity of methane seepage occurring in the sediment and paleooceanographic conditions. Unfortunately, the intensive investigation of a specific area with dormant seep is still limit. Most seepage and modeling studies are site-specific and little attempt has been made to extrapolate the results to larger scales. Further research is thus needed to foster our understanding of the methane seepage. | LIU Lihua FU Shaoying ZHANG Mei GUAN Hongxiang WU Nengyou | 2017 | Acta Oceanologica Sinica2017，36，6： | 2 |
| 4 | 显示文摘 | Fu Hongxiang Lu Gongxuan Li Shuben | 1998 | J Photochem Photobio A1998，114，1： | 1 |
| 5 | Adsorption and photo-induced reduction of Cr(Ⅵ) ion in Cr(Ⅵ)-4CP(4-chlorophenol) aqueous system in the presence of TiO2 as photocatalyst显示文摘 | Hongxiang Fu Gongxuan Lu Shuben Li | 1998 | Journal of Photochemistry and Photobiology1998，，11： | 1 |
| 6 | HYDROFORMYLATION OF OLEFINS CATALYZED BY HOMOGENEOUS HETERONUCLEAR METAL CLUSTER [PhCH_2Me_3N][FeCo_3(CO)_(12)]显示文摘Hydroformylation of olefins catalyzed by heteronuclear metal cluster [PhCH2Me3N]-[FeCo3(CO)12] was studied. The effect of temperature, pressure, and solvent ect. on olefin hydroformylation was examined. The results show that for the hydroformylation of various olefins, e.g. 1-hexene, isobutene, 2-octene, cyclohexene, diisobutene, and styrene, the Fe-Co cluster exhibits rather high activity under mild conditions. For example, under the pressure such of 4 MPa, H2/CO ratio of 1: 1, at 120℃, 1-hexene was hydroformylated to heptanal with the conversion of > 80% and the selectivity of > 95% in 1 hr. | Luo Yuzhong, Fu Hongxiang, Zhang Shuwei(Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou, China) Wang Yunpu, Wu Nan, Zhang Aimi(Northwestern Teachers College, Lanzhou, China) | 1990 | 分子催化1990，4，S1： | 0 |
| 7 | The intensity of organ support: Restrictive or aggressive therapy for critically ill patients显示文摘The intensity of organ support has received attention in recent years. To make better clinical decisions, we should understand the mechanisms and benefits, and disadvantages of the different intensities of organ support in critically ill patients. Therapeutic strategies such as supplemental oxygen therapy, mechanical ventilation, respiratory stimulant, vasoactive agents, transfusion, albumin infusion, fluid management, renal placement, and nutrition support, if they are implemented in accordance with an aggressive strategy, could result in side effects and/or complications, resulting in iatrogenic harm in critically ill patients. It is found that the intensity of organ support is not a determining factor in prognosis. A normal rather than supernormal physiological target is recommended for support therapy. | Hongxiang Li Yuting Li Yao Fu Xinyu Zhang Dong Zhang | 2023 | Journal of Intensive Medicine2023，3，4： | 0 |
| 8 | HYDROFORMYLATION OF ETHYLENE CATALYZED BY HOMOGENEOUS METAL CLUSTERS显示文摘This paper deals with a study of hydroformylation of ethylene catalyzed by homoge-neous metal clusters.〔PhCH2Me3N〕〔FeCo3(CO)12〕and〔PhCH2Me3N〕〔RuCO3(CO)12〕show high catalytic activity for the hydroform ylation of ethylene compared with YCCo3(CO)9,CO4(CO)10(PPh)2,Co2(CO)6(PBu3)2,and Fe2(CO)4(C5H5)2.The reacton rate ofheteronuclear clusters is faster than that with homonuclear clusters.The effect of tempera-ture and pressure on hydroformylation of ethylene with〔PhCH2Me3〕〔FeCo3(CO)12〕ascatalyst was studied.The experimental results.show that the conversion of ethylene exceeds90% with a selectivity up to 95% at temperature 130℃ and pressure 3.9 MPa.When studiedwith high pressure in situ infrared spectroscopic method,PhCCo3(CO)9 was found to havehigher thermostability than 〔PhCH2Me3N〕〔FeCo3(CO)12〕. | Fu Hongxiang, Luo Yuzong , Zhang Shuwei, Ren Xu (Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China) | 1989 | 分子催化1989，3，S1： | 0 |
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