[Objective] The study was to isolate and identify the pathogen of Pandora neoaphidis and to determine its pathogenicity against turnip aphid （Lipaphis erysimi）.[Method] Based on the morphological characteristics,the...[Objective] The study was to isolate and identify the pathogen of Pandora neoaphidis and to determine its pathogenicity against turnip aphid （Lipaphis erysimi）.[Method] Based on the morphological characteristics,the species of pathogenic fungus was identified.Spore shower method was used to carry out bioassay on the pathogen against turnip aphid.[Result] Primary conidia were ovoid,bitunicate and uninucleate,（24.7±1.4）μm×（10.7±0.9）μm,L/D=2.3±0.2.Secondary conidia had the similar shape with the primary ones,（18.6±2.1）μm×（13.3±1.3）μm,L/D=1.4±0.2.Hyphal body was like mycelium with the diameter of （10.6±0.8）μm.Conidiophores had palmate branch with the diameter of （10.0±0.9）μm.Pseudocystidia was not branched,which had rough base with the diameter of （19.2±1.7）μm,and gradually became more angular towards the apex with the diameter of （8.0±0.9）μm at tips.Rhizoid was like monohyphal shape with the diameter of （21.0±3.0）μm at base,the terminal apex had regular discoid holdfast.No resting spores were observed.The lethal dose of the pathogen against turnip aphid was 18.2/mm2.[Conclusion] The entomopathogenic fungus against turnip aphid was identified to be Pandora neoaphidis,and the pathogen was confirmed to have strong pathogenicity against turnip aphid.展开更多
Pandora effect and taboo effect provides rich themes for urban public art, such as nude sex, instinctive death, rebellious fantasy, the expressive subject matter of excitement, recording subject matter of time, explic...Pandora effect and taboo effect provides rich themes for urban public art, such as nude sex, instinctive death, rebellious fantasy, the expressive subject matter of excitement, recording subject matter of time, explicit satire. Designers use the particular psychology of the public to produce many themes stimulating psychological reactions and comforting spiritual needs, stimulate citizens' perception and experience about arts, and make urban public art more attractive.展开更多
THE Internet was originally con- ceived as an open, global infor- mation highway connecting anew kind of global community without borders, a place where free exchange of ideas could not be regulated. Unregulated infor...THE Internet was originally con- ceived as an open, global infor- mation highway connecting anew kind of global community without borders, a place where free exchange of ideas could not be regulated. Unregulated information and communication would spread knowledge, understanding, and enlightenment, which would usher in a new age for humankind. Unfortunately, like all advancements, it has been more of a Pandora＇s Box than a solution in a box.展开更多
基金Supported by Key Projects in Shaoguang Institute (200402)~~
文摘[Objective] The study was to isolate and identify the pathogen of Pandora neoaphidis and to determine its pathogenicity against turnip aphid （Lipaphis erysimi）.[Method] Based on the morphological characteristics,the species of pathogenic fungus was identified.Spore shower method was used to carry out bioassay on the pathogen against turnip aphid.[Result] Primary conidia were ovoid,bitunicate and uninucleate,（24.7±1.4）μm×（10.7±0.9）μm,L/D=2.3±0.2.Secondary conidia had the similar shape with the primary ones,（18.6±2.1）μm×（13.3±1.3）μm,L/D=1.4±0.2.Hyphal body was like mycelium with the diameter of （10.6±0.8）μm.Conidiophores had palmate branch with the diameter of （10.0±0.9）μm.Pseudocystidia was not branched,which had rough base with the diameter of （19.2±1.7）μm,and gradually became more angular towards the apex with the diameter of （8.0±0.9）μm at tips.Rhizoid was like monohyphal shape with the diameter of （21.0±3.0）μm at base,the terminal apex had regular discoid holdfast.No resting spores were observed.The lethal dose of the pathogen against turnip aphid was 18.2/mm2.[Conclusion] The entomopathogenic fungus against turnip aphid was identified to be Pandora neoaphidis,and the pathogen was confirmed to have strong pathogenicity against turnip aphid.
基金Supported by Art Project of the Ministry of Education P.R.C."The Urban Landscape Art Design and the Spiritual Ecology"(09YJC760004)National Natural Science Foundation"Optimal Design Strategy Based on the Transportation Hub of the Subway Station Architecture Space"(51178038)
文摘Pandora effect and taboo effect provides rich themes for urban public art, such as nude sex, instinctive death, rebellious fantasy, the expressive subject matter of excitement, recording subject matter of time, explicit satire. Designers use the particular psychology of the public to produce many themes stimulating psychological reactions and comforting spiritual needs, stimulate citizens' perception and experience about arts, and make urban public art more attractive.
文摘THE Internet was originally con- ceived as an open, global infor- mation highway connecting anew kind of global community without borders, a place where free exchange of ideas could not be regulated. Unregulated information and communication would spread knowledge, understanding, and enlightenment, which would usher in a new age for humankind. Unfortunately, like all advancements, it has been more of a Pandora＇s Box than a solution in a box.
