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| 1 | Genetics and Molecular Marker Identification of a Resistance to Glomerella Leaf Spot in Apple显示文摘Apple Glomerella leaf spot(GLS) is a destructive fungal disease that damages apple leaves during the summer in China.Breeding new diseaseresistant varieties is considered to be the best way of controlling GLS.A genetic study of resistance to Glomerella leaf spot(GLS) in apple was conducted by using four F_1 hybrid groups(‘Fuji' בGolden Delicious',‘Golden Delicious' בFuji',‘Gala' בFuji',and ‘Fuji' בQF-2') generated from two highly resistant varieties or selections,‘Fuji' and ‘QF-2',and two highly susceptible varieties,‘Golden Delicious' and ‘Gala'.The results showed that the separation ratios of resistant plants to the susceptible ones in the four F_1 hybrid groups were statistically consistent with the theoretical ratios of 1:1,1:1,0:1,and 1:0.Comprehensive analysis enabled us to generate the following conclusions:GLS resistance in apple may be controlled by a single recessive gene.The genotype of the resistant plants was rr,whereas the genotypes of the susceptible ones were RR and Rr.By using ‘Golden Delicious' בFuji' F_1 hybrid groups and the bulked segregation analysis(BSA) method,the marker S0506206-243 bp associated with disease resistance character to GLS was identified through screening 500 SSR primers encompassing the entire apple genome with even coverage,and the genetic distance between the marker and the GLS resistance gene was 9.8 cM. | LIU Yuanxia LI Baohua WANG Caihong LIU Chunxiao KONG Xianghua ZHU Jun DAI Hongyi | 2016 | Horticultural Plant Journal2016，2，3： | 6 |
| 2 | Analysis of heat transfer of loop heat pipe used to cool high power LED显示文摘A novel loop heat pipe(LHP)cooling device for high power LED is developed.The thermal capabilities, including startup performance,temperature uniformity and thermal resistance of the loop heat pipe under different heat loads and incline angles have been investigated experimentally.The obtained results indicate that the thermal resistance of the heat pipe heat sink is in the range of 0.19―3.1 K/W,the temperature uniformity in the evaporator is controlled within 1.5℃,and the junction temperature of high power LED can be controlled steadily under 100℃for a heat load of 100 W. | LU XiangYou HUA ZeZhao LIU MeiJing CHENG YuanXia | 2009 | Science China(Technological Sciences)2009，52，12： | 5 |
| 3 | Impact of Asarum Essential Oils on Physiological and Biochemical Indicators of Two Agricultural Pests显示文摘[Objective]The paper was to study the effects of asarum essential oils on physiological and biochemical indices of two agricultural pests. [Method]Asarum essential oils were extracted by different methods,and their effects on physiological and biochemical indices related to the structure of body wall( chitin and phenoloxidase),the physiological and biochemical indices acting on the nervous system( Acetylcholinesterase),and the physiological and biochemical indices acting on the digestive system( protease,amylase and lipase) of Ostrinia furnacalis and Mythimna seperata were studied. [Result]Asarum essential oils had no effect no chitin content of body wall under the experimental concentration,and had no inhibitory effect but activated effect on polyphenol oxidase activity. Asarum essential oils could act on the nervous system of insect,and had strong inhibitory effect against acetylcholinesterase activity of O. furnacalis larvae,with inhibition rates of 24. 86%- 38. 79%. Asarum essential oils showed a significant activated effect on pepsin activity in midgut,but the activated amplitude became smaller with the prolongation of treatment time. Asarum essential oils showed a significant inhibitory effect on activities of amylase and lipase,indicating that it could play an insecticidal effect by inhibiting activity of amylase and lipase,and it could act on digestive system of insect. [Conclusion]The study laid the foundation for further development of asarum as botanical pesticide. | Liu Yan Ji Lanzhu Wang Guiqing Wang Yuanxia Zhang Yue Yi Xuemei | 2014 | Plant Diseases and Pests2014，5，3： | 2 |
| 4 | Propagation of Iamb waves in adhesively bonded multilayered media显示文摘The effect of introducing attenuation on Lamb wave dispersion curves is studied in this paper. Attenuation is introduced to a three-layered composite plate by an adhesive bond layer with viscous behavior. No changes are required to the transfer matrix formulation for the propagation of elastic waves. By introduction of a complex wavenumber, the model can be used to the propagation of attenuative Lamb waves. Numerical examples for a three-layered aluminium-epoxy-aluminium plate show that attenuation values of each mode in plates are related not only to attenuation, but also to the thickness of the bonded layer, which is in agreement with practical situations. | ZHANG Haiyan~(**) (School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China) XIE Yuanxia, LIU Zhenqing (Institute of Acoustics, Tongji University, Shanghai 200092, China) | 2003 | 声学技术2003，22，z1： | 1 |
| 5 | Identification of key gene networks controlling monoterpene biosynthesis during grape ripening by integrating transcriptome and metabolite profiling显示文摘Monoterpenes are typical aroma components of muscat grape cultivars,providing pleasant floral and fruity aromas to grapes and wines.However,the molecular mechanism of monoterpene biosynthesis between muscat and non-muscat grape remains unclear.Here,the muscat grape cultivar‘Jumeigui’and the non-muscat grape cultivar‘Kyoho’were chosen as plant materials for a comprehensive transcriptome and metabolite analysis.The gas chromatography-mass spectrometry(GC-MS)analysis demonstrated that a total of 27 and 23 monoterpene compounds were identified and quantified in the‘Jumeigui’and‘Kyoho’grape,respectively.‘Jumeigui’grape accumulated significantly higher concentrations of monoterpenes than‘Kyoho’grape.Furthermore,geraniol,linalool,geranic acid,and β-citronellol might be important odorants contributing to the floral character of the‘Jumeigui’grape due to the high levels odor activity values(OAVs).Transcriptome analysis demonstrated that the expression profiles of VvDXS,VvGGPPS.SSU1,Vv TPS-b/g showed a positive correlation with monoterpene accumulation in grapes.In addition,the expression patterns of the genes involved in jasmonic acid(JA)synthesis and signal were also positively correlated with monoterpene accumulation.All these results will help guide the functional verification of candidate genes related to monoterpene biosynthesis,as well as identify the master transcriptional and hormonal regulators of this pathway in grapes. | Xiangpeng Leng Jiameng Cong Lixia Cheng Haoliang Wan Yuanxia Liu Yongbing Yuan Jinggui Fang | 2023 | Horticultural Plant Journal2023，9，5： | 0 |
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