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昆虫分类学报 1986年第4期 299-302页

作者： Hu Xingping(shandong agricultural university)

In China, the Kermesidae comprises only the genus Kermes principallyfound on oaks. Previous descriptions of Kermes species were based primarilyon old, sclerotized females, whose body shape and color pattern, however,are subject to great changes. In the present paper, external morphology of first instars, young adultfemales and adult males are described microscopically and changes ofeaternal features of females after final molt are described to determine the

关键词： descriptions ventral Segment young segmented fused latter thorax multilocular brown

Immobilization of an enzyme from a Fusarium fungus WZ-I for chlorpyrifos degradation

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Journal of Environmental Sciences 2010年第12期22卷 1930-1935页

作者： Hui Xie,Lusheng Zhu,Tingting Ma,Jun Wang,Jinhua Wang,Jun Su,Bo Shao College of Resources and Environment,shandong agricultural university,Taian 271018,China College of Resources and Environment Shandong Agricultural University Taian 271018 China

The free enzyme extracted from WZ-I, which was identified as Fusarium LK. ex Fx, could effectively degrade chlorpyrifos, an organophosphate insecticide. The methods of immobilizing this free enzyme and determined its degradation-related characteristics were investigated. The properties of the immobilized enzyme were compared with those of the free enzyme. The optimal immobilization of the enzyme was achieved in a solution of 30 g/L sodium alginate at 4℃ for 4-12 hr. The immobilized enzyme showed the maximal activity at pH 8.0, 45℃. The maximum initial rate and the substrate concentration of the immobilized enzyme were less than that of the free enzyme. The immobilized enzyme, therefore, had a higher capacity to withstand a broader range of temperatures and pH conditions than the free enzyme. With varying pH and temperatures, the immobilized enzyme was more active than the free enzyme in the degradation reaction. In addition, the immobilized enzyme exhibited only a slight loss in its initial activity, even after three repeated uses. The results showed that the immobilized enzyme was more resistant to different environmental conditions, suggesting that it was viable for future practical use.

关键词： organophosphate pesticide immobilized enzyme degradation fungus

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三大检索系统收录我校论文的现状分析

山东农业大学学报（自然科学版） 2002年第2期33卷 227-229页

作者：高景昌李西双山东农业大学山东泰安271018

统计分析了三大著名检索系统收录山东农业大学论文的基本特点。

关键词：检索系统论文现状分析山东农业大学论文收录 SCI EI ISTP

Study on Community Diversity of Coastal Shelter Forest in Jiaonan

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Chinese Journal of Population,Resources and Environment 2005年第3期3卷 42-47页

作者： Xu Jingwei 1,2, Li Chuanrong 3, Li Qi 4, Zheng Li 3, & Wang Weidong 1 1 Beijing Forestry university,Beijing 100871,China 2 shandong Acdemy of Forestry, Jinan 250014, China 3 College of Forestry, shandong agricultural university, Taian 271018, China 4 shandong Normal university, Jinan 250014, China Beijing Forestry university Beijing 100871 China shandong Acdemy of Forestry Jinan 250014 China College of Forestry Shandong Agricultural University Tatan 271018 China shandong Normal university Jinan 250014 China

Based on the research of the plots in coastal areas in Jiaonan city, shandong Province, the indices of richness, evenness and diversity of different community types are analyzed. The results show that: The richness indices indicates that arbor layers are close to shrub layers, and both are lower than herbage layers; the ranges among communities vary a little except those of the arbor ones. Mostly the biodiversity indices reveal that herbage, the arbor, the shrub; Biodiversity of communities has great influences on microclimate to a certain extent and is under the control of regional environment.

关键词： coastalshelterforest richness biodiversity index microclimate

Effects of Soil Aeration on Sweet Potato Yield and Its Physiological Mechanism

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agricultural Sciences in China 2002年第2期1卷 189-194页

作者： SHI Chun-yu,WANG Zhen-lin and YU Song-lie(College of Agronomy, shandong agricultural university, Taian 271018) College of Agronomy Shandong Agricultural University Taian 271018

The effects of soil aeration on physiological characters and root tuber yield of Ipomoea batatas (L.) Lam. CV Lushu7 and Xushu18 were studied. The results showed that soil aeration improvement could increase ATP content and ATPase activity in functional leaves and root tubers and ABA content in root tubers. It also accelerated the transportation of 14C-photosynthate from leaves to root tubers and enhanced dry matter distribution in root tubers and thus root tuber yield was significantly raised. The role of ATP, ATPase and ABA in accelerating the transportation of 14C-photosynthate was discussed based on the changes of soluble carbonhydrate content in sweet potato plant.

关键词： Sweet potato Soil aeration Root tuber yield Physiological peculiarity

Apoptosis in Granulosa cells during follicular atresia: relationship with steroids and insulin-like growth factors

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Cell Research 2004年第4期14卷 341-346页

作者： Yuan Song YU, Hong Shu SUI, Zheng Bin HAN, Wei LI, Ming Jiu LUO, Jing He TAN Laboratory of Animal Reproduction and Embryology College of Animal Sciences and Veterinary Medicine, shandong agricultural university, Taian, shandong 271018, China Present address: College of life science. university of Beijing, Beijing, China. Laboratory of Animal Reproduction and Embryology College of Animal Sciences and Veterinary Medicine Shandong Agricultural University Taian China College of life science University of Beijing Beijing China

It is well known that during mammalian ovarian follicular development, the majority of follicles undergo atresia at various stages of their development. However, the mechanisms controlling this selection process remain unknown. In this study, we investigated apoptosis in granulosa cells during goat follicular atresia by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL). The changes in the levels of steroids, insulin-like growth factors (IGFs) and IGF receptors were studied by radioimmunoassay (RIA) and semi-quantitative reverse transcrip-tion-PCR. We found that the percentage of apoptotic granulosa cells in the atretic (A) follicles was significantly higher than that in the slightly atretic (SA) and healthy (H) follicles. The level of estradiol and the ratio of estradiol to progesterone in H follicles were significantly higher than those in A follicles. On the other hand, the level of progesterone was not significantly different among these follicle types. We also found that t

关键词： apoptosis ovarian follicle steroids IGFs atresia.

Effects of Synergism Between PVY and PVX on Virus Titer and Cell Ultrastructure in Tobacco Plants

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agricultural Sciences in China 2003年第2期2卷 163-169,T001-T002页

作者： LI Han , GUO Xing-qi , LI Xiang-dong, GUO Heng-jun and LI Zhao-huiCollege of Life Sciences , shandong agricultural university ,Tai’an 271018 , P. R. China College of Plant Protection , shandong agricultural university , Tai’an 271018 , P. R. China College of Life Sciences Shandong Agricultural University Tai'an 271018 P. R. China College of Plant Protection Shandong Agricultural University Tai'an 271018 P. R. China

The viruses titer and the ultrastructure of infected cells in tobacco host (Nicotiana tabacum cv. Samsun), which doubly infected with potato virus Y necrosis strain (PVYN) and potato virus X (PVX), were studied under greenhouse conditions. The results indicated that PVYN and PVX interacted synergistically. and tobacco plants which doubly infected with PVX and PVYN could greatly increase symptom severity as compared with that induced by the single virus. As determined by triple antibody sandwich enzyme-linked immunosor-bent assay (TAS-ELISA), the titer of PVX in the tobacco leaves infected with both PVYN and PVX was up to 9.10 times higher than the plants infected with PVX only. No significant differences in PVYN titer were detected between singly and doubly infected plants. The enhancement of PVX titer in doubly infected plants was evident in greenhouse and was independent of the virus strains, tested seasons, intervals between PVYN and PVX inoculation. When sections of doubly infected leaves were examined with an electron microscope, it could be frequently found that cells contained pinwheels and large masses of PVX-like particles, pinwheels and laminate inclusions, or all three structures, most of them were swollen, and their chloroplast and other organella were destructed heavily. This suggested that doubly infected cells were involved in the enhancement phenomenon, which seemed to be the result of an increase in the amount of PVX synthesized in them.

关键词： Potato virus Y Potato virus X Synergism Cytopathology

Ultrastructural Alteration of Maize Plants Infected with the Maize Rough Dwarf Virus

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agricultural Sciences in China 2002年第5期1卷 531-534页

作者： LI Zhao-hui, GUO Xing-qi, YE Bao-hua and GUO Yan-kui( College of Plant Protection , shandong agricultural university, Taian 271018 , P.R.China College of Life Sciences , shandong agricultural university , Taian 271018 , P.R.China) College of Plant Protection Shandong Agricultural University Taian 271018 P.R. China College of Life Sciences Shandong Agricultural University Taian 271018 P. R. China

The ultrastructural alteration of maize plants infected with the maize rough dwarf virus (MRDV) was studied with transmission electron microscopy. The results revealed that aggregates of virus particles , with a diameter of 60nm, were found in the root cell, and always distributed near the vacuole membrane. However, no such particles were checked in leaf cells. Moreover, no virus was observed in choroplasts, mitochondria nuclei, plasmodesmata or intercellular canal of all kinds of infected cells of maize, either. Structures of various organelles changed in the infected leaf and root cells of maize. An inward collapse and localized splitting of the tonoplast were observed, the chloropoast structure was destroyed by MRDV, and the number of destroyed or dysplasia chloroplast in leaf cells with serious symptoms was more than that in leaves without symptoms. The matrix of mitochondria in cells infected by MRDV decreased and some of them expanded and destructed. Nuclei was abnormal and the nuclear membrane was broken. In addition, the infected cells were characterized by a voluminous cytoplasm containing hypertrophied endoplasmic reticulum, with rich ribosome content and lots of starch grain.

关键词： Maize rough dwarf virus Cy topathology Electron microscopy

Nonsingularity in second-order cone programming via the smoothing metric projector

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Science China Mathematics 2010年第4期53卷 1025-1038页

作者： WANG Yun 1,& ZHANG LiWei 2 1 College of Information Sciences and Engineering,shandong agricultural university,Tai’an 271018,China 2 Department of Applied Mathematics,Dalian university of Technology,Dalian 116024,China College of Information Sciences and Engineering Shandong Agricultural University Tai’an China Department of Applied Mathematics Dalian University of Technology Dalian China

Based on the differential properties of the smoothing metric projector onto the second-order cone,we prove that,for a locally optimal solution to a nonlinear second-order cone programming problem,the nonsingularity of the Clarke's generalized Jacobian of the smoothing Karush-Kuhn-Tucker system,constructed by the smoothing metric projector,is equivalent to the strong second-order sufficient condition and constraint nondegeneracy,which is in turn equivalent to the strong regularity of the Karush-Kuhn-Tucker ***,this nonsingularity property guarantees the quadratic convergence of the corresponding smoothing Newton method for solving a Karush-Kuhn-Tucker ***,the analysis does not need the strict complementarity condition.

关键词： second-order cone programming problem smoothing metric projector B-subdifferential Clarke’s generalized Jacobian smoothing Newton method

Effect of Different Fertilizing Methods on Zinc Nutrition in Zn-Deficiency Apple Trees

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agricultural Sciences in China 2002年第12期1卷 1365-1369页

作者： WANG Yan-an, FAN Wei-guo, ZHANG Fang-ai, LI Ling and LI De-quan(College of Science and Technology, shandong agricultural university, Taian 271018 ,P. R.China College of Life Science , shandong agricultural university , Taian 271018 , P. R. China) College of Science and Technology Shandong Agricultural University Taian 271018P.R.China College of Life Science Shandong Agricultural University Taian 271018 P.R.China

Red Fuji apple trees of Zn-deficiency were used as material in the experiment. The effect of different Zn application methods on the regularity of Zn transportation and nutrition was studied. It was found that the storage of Zn in the branches was greatly increased by foliar application of the solution of 15% ZnSO4·7H2O before abscission. It had advantage to keep suitable Zn content in leaves, branches and roots, as well as between Zn and P and K, which increased Zn transportation and reusability. Zn content in roots increased when Zn was used in soil in autumn. However, the absorbed Zn did not transport to the top of the plant. It was used by the plant next year. Foliar application of ZnSO4·7H2O at early stage of the plant growth enhanced Zn content of the branch. However, the effect was kept for a short time. It had little effect on Zn transportation when Zn was sprayed three weeks after blossoming.

关键词： Apple trees Zinc Nutrition balance Foliar application