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Control of cotton pests and diseases by intercropping:A review

Journal of Integrative Agriculture 2021年第12期20卷 3089-3100页

作者： CHI Bao-jie zhang dong-mei dong He-zhong Cotton Research Center Shandong Academy of Agricultural SciencesJinan 250100P.R.China College of Life Sciences Shandong Normal UniversityJinan 250014P.R.China College of Agronomy Hebei Agricultural UniversityBaoding 071000P.R.China

Cotton(Gossypium hirsutum L.)is a globally important crop that is often damaged by pests and *** cotton pests and diseases management is dependent on chemical *** chemical pesticides are usually effective,long-term application of these pesticides often leads to increased insecticide resistance in the pests,fewer natural enemies,reduced natural control,and a degraded *** of increased environmental awareness and the need for sustainable cotton production,the control of cotton pests and diseases using biological means like intercropping is increasingly receiving *** of cotton with other crops can often boost the total yield and output of the intercropping system and provide significant economic benefits without sacrificing cotton *** also increases the number of natural enemies,and reduces the occurrence of cotton pests and diseases by altering the ecological structure and environmental conditions in the ***-based intercropping is an effective strategy to reduce the competition between cotton and grain or other economic crops for arable *** is also an important way to increase the populations of natural enemies in cotton fields for the management of pests and ***,inappropriate intercropping can also increase labor requirements and even result in inadequate control of pests and *** review focuses on the performance and the mechanisms of intercropping for reducing cotton pests and disease as well as on the effective management of intercropping *** risks and limitations,as well as the study approaches needed and the prospects of intercropping for the control of cotton pests and diseases,are also *** information is intended to aid researchers and growers in designing economically viable and ecologically friendly pest and disease management strategies that will reduce the use of chemicals and the cost of cotton production.

关键词： cotton-based intercropping pest management risk and limitation

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Interference Pattern of Density-Density Correlation for Incoherent Atoms with Vortices Released from an Optical Lattice

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Chinese Physics Letters 2011年第1期28卷 26-29页

作者： XU Zhi-Jun zhang dong-mei LIU Xia-Yin College of Science Zhejiang University of Technology Hangzhou 310023

For a series of incoherent condensate atomic clouds with vortices （an orbital angular momentum） released from an optical lattice, the density-density correlation function of this freely expanding ultracold gases is theoretically investigated. It is shown that the nonzero angular momentum of the atoms has an important effect on the fringe pattern of density-density correlation. Particularly, for a short expansion time, even the rotation direction of the atoms could have an observable effect on the fringe pattern. Observation of this specific fringe pattern would constitute experimental evidence for the presence of a vortex in an atomic condensate.

关键词： Quantum gases, liquids and solids Optics, quantum optics and lasers Statistical physics and nonlinear systems

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Redundancy Elimination in GPRS network

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第4期7卷 477-482页

作者： QIU Qin-long zhang dong-mei MA Jian zhang Da-jiang National Key Lab of Switching Technology and Telecommunication Network Beijing University of Posts ＆ Telecommunications Beijing 100876 China Nokia Research Centre Beijing 100013 China

The mechanisms of TCP’s retransmission and reset will result in redundant packets. These redundant packets are often sent unnecessarily to the user over a slow last-hop link delaying useful traffic. This is a problem for wide-area wireless links, such as General Packet Radio Service (GPRS), because unnecessary transmissions waste already limited radio bandwidth, battery power at the mobile terminal and incurs monetary cost due to charging by data volume. The paper first describes a GPRS model, then discusses how to eliminate the redundant packets in GPRS network and presents the simulation results in Network Simulation 2 (NS 2). The more traffic is, the more the network can benefit. In heavy traffic, it can even get more than 30% improvement in throughput. Average delay and loss percent are also lowered.

关键词： GPRS TCP Redundancy Elimination Network Simulation 2 (NS 2)

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Using the Phosphomannose Isomerase (PMI) Gene from Saccharomyces cerevisiae for Selection in Rice Transformation

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Journal of Integrative Agriculture 2012年第9期11卷 1391-1398页

作者： WANG Tao LIU Liang-yu TANG Yong-yan zhang Xiao-bo zhang mei-dong ZHENG Yong-lian zhang Fang-dong National Key Laboratory of Crop Genetic Improvement Ministry of Science and Technology/Huazhong Agricultural University Wuhan 430070P. R. China

The phosphomannose isomerase （PMI） gene from Saccharomyces cerevisiae acted as selectable marker and mannose acted as selective agent for the production of transgenic plants of rice （Oryza sativa L.） via Agrobacterium-mediated transformation. The concentration of mannose during the selection was stepwise increased, 5 g L-1 mannose combined with 15 g L-1 sucrose and 500 mg L-1 cefotaxime was used in the initial selection stage, then the concentration of mannose was increased to 11 g L-1, the highest transformation rate was 20.0%. The integration of PMI gene was confirmed by PCR, and the result of RT-PCR assay proved that the intron of PMI gene can be excised correctly during RNA splicing. 13- Glucuronidase （GUS） activity analysis confirmed the expression of GUS gene. All those means the PMI gene from yeast can be used as a selectable marker in rice transformation.

关键词： phosphomannose isomerase selectable marker Saccharomyces cerevisiae transformation rice

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Three-dimensional numerical analysis of the interaction of two crossing tunnels in soft clay

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Underground Space 2019年第4期4卷 310-327页

作者： Jin Yin-Fu Zhu Bing-Qing Yin Zhen-Yu zhang dong-mei Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina China Development Bank Sichuan Branch No.120Tiantai RoadGaoxin DistrictChengduSichuan ProvinceChina Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Tongji UniversityShanghai 200092China Department of Geotechnical Engineering Tongji UniversityShanghai 200092China

Recently,with the development of underground construction,multi-tunnel engineering has become a matter of concern since the interaction between tunnels at close ranges could cause additional deformation in strata as well as surrounding structures and even serious damage to surface *** tunnel displacement and soil deformation problems can be effectively predicted using numerical methods considering the influence of various factors,such as the anisotropic nature of soft *** this end,the anisotropic elastoplastic constitutive S-CLAY1 is implemented in finite element code to investigate deformation problems in the strata and nearby structures caused by the excavation of *** paper focuses in particular on configurations of two crossing *** 3D numerical simulations using ABAQUS enable successive analyses conducted for tunnels at different spacings(1.5D,2.5D,3.5D and 4.5D,where D is the tunnel diameter)of configurations aligned *** results,including the ground settlement,lining force and moment,and tunnel convergence,are *** each aspect,the most unfavorable case is determined by comparing the results of different *** investigation can provide a reference for multi-tunnels design and construction.

关键词： Multi-tunnels Anisotropy Clay Ground loss Finite element Constitutive relation

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Four new corynanthe-type alkaloids from the roots of Alstonia scholaris

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Chinese Journal of Natural Medicines 2019年第12期17卷 918-923页

作者： zhang Jian LI Hua LI Yong LI Zi-Wei SANG Chen-Chen GAO mei-Hua zhang dong-mei zhang Xiao-Qi YE Wen-Cai Institute of Traditional Chinese Medicine&Natural Products and Guangdong Provincial Engineering Research Center for Modernization of TCMCollege of PharmacyJinan UniversityGuangzhou 510632China Chinese Patent Medicine Department Guangdong Institute for Drug ControlGuangzhou 510663China

Four new corynanthe-type alkaloids,meloslines C–F(1–4),together with four known ones(5–8)were isolated from the roots of Alstonia *** structures including absolute configurations were elucidated by extensive spectroscopic analysis and electronic circular dichroism(ECD)*** 1 and 2 exhibited potent vasorelaxant activity on endothelium-intact renal arteries precontracted with KCl.

关键词： Alstonia scholaris Apocynaceae Corynanthe-type alkaloids Vasorelaxant activity

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Natural products as potent inhibitors of hypoxia-inducible factor-1α in cancer therapy

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Chinese Journal of Natural Medicines 2020年第9期18卷 696-703页

作者： ZHONG Jin-Cheng LI Xiao-Bo LYU Wen-Yu YE Wen-Cai zhang dong-mei College of Pharmacy Jinan UniversinyGuangzhou 510632.China Guangdong Province Key Laboratory of Pharmacodynamic Constituents 0f Traditional Chinese Medicine and New Drugs Research Jinan UniversityGuangzhou 510632China

Hypoxia is a prominent feature of tumors. Hypoxia-inducible factor-1α(HIF-1α), a major subunit of HIF-1, is overexpressed in hypoxic tumor tissues and activates the transcription of many oncogenes. Accumulating evidence has demonstrated that HIF-1α promotes tumor angiogenesis, metastasis, metabolism, and immune evasion. Natural products are an important source of antitumor drugs and numerous studies have highlighted the crucial role of these agents in modulating HIF-1α. The present review describes the role of HIF-1α in tumor progression, summarizes natural products used as HIF-1α inhibitors, and discusses the potential of developing natural products as HIF-1α inhibitors for the treatment of cancer.

关键词： Hypoxia-inducible factor-1α Hypoxia Cancer Natural products Anticancer treatment

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Efficient identity-based signature scheme with batch authentication for delay tolerant mobile sensor network

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The Journal of China Universities of Posts and Telecommunications 2013年第4期20卷 80-86页

作者： LI Wen-ji ZHENG Kang-feng zhang dong-mei YE-Qing YANG Yi-xian Information Security Center Beijing University of Posts and Telecommunications National Engineering Laboratory for Disaster Backup and Recovery Beijing University of Posts and Telecommunications

Identity-based cryptography （IBC） has drawn a lot of attentions in delay tolerant environment. However, the high computational cost of IBC becomes the most critical issue in delay tolerant mobile sensor network （DTMSN） because of the limited processing power. In this paper, an efficient identify-based signature scheme with batch authentication （ISBA） is proposed for DTMSN. ISBA designs an online/offline signature with batch authentication to reduce the computational cost, and improves data delivery mechanism to increase the number of messages for each batch authentication. Simulation results show that ISBA not only realizes a lower computational cost than existed schemes, but also does not induce negative impact on the delivery performance.

关键词： IBC DTMSN signature batch authentication computational cost

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Density Functional Theory Study on La Complex with Schiff-base as Building Block

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Chinese Journal of Structural Chemistry 2006年第2期25卷 197-203页

作者： XIA Shu-Wei XU Xiang SUN Ya-Li FAN Yu-Hua BI Cai-Feng zhang dong-mei YANG Li-Rong Department of Chemistry Ocean University of China Qingdao 266003 China

Quantum density functional theory （DFT） results are reported for the building block [LaL^1（NO3）] of La complex [LaL^1（NO3）]NO3·5H2O （L^1 = （CH3）2CHCH2CH（NCHC4H3O）COO^-）. The structure was optimized and the calculation results show that the lanthanum ion is coordinated by one nitrogen atom and three oxygen atoms of L^1 and two oxygen atoms of nitrate ion. The bond length of La-N is 0.2637 nm and the average length of La-O is 0.2526 nm, which are consistent with the literatures. In addition, the stabilities, electronic structural characteristics and IR spectra of the complex have been analyzed, which describe the coordination of lanthanum ion with other atoms in detail.

关键词： rare-earth Schiff-base lanthanum complex density functional theory

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Yield, Leaf Senescence, and Cry1Ac Expression in Response to Removal of Early Fruiting Branches in Transgenic Bt Cotton

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Agricultural Sciences in China 2008年第6期7卷 692-702页

作者： dong He-zhong TANG Wei LI Wei-jiang LI Zhen-huai NIU Yue-hua zhang dong-mei Cotton Research Center Shandong Academy of Agricultural Sciences/Shandong Provincial Key Lab for Cotton Culture and PhysiologyJinan 250100 P.R.China

Two-year field experiments were conducted at Linqing, Yellow River valley of China, to study the plant response to the removal of early fruiting branches in transgenic Bt （Bacillus thuringiensis） cotton （Gossypium hirsutum L.） from 2003 to 2004. Plants were undamaged and treated by removing two basal fruiting branches （FB） at squaring to form the control and the removal treatment, respectively. The plant height, leaf area （LA）, dry weight of fruiting forms （DWFF）, the number of fruiting nodes （NFN）, photosynthetic （Pn） rate, and levels of leaf chlorophyll （Chl）, N, P, K, and Cry lAc protein in main- stem leaves were measured at a 10- or 20-d interval after FB removal, and the sink/source ratio as indicated by NFN/LA and DWFF/LA was determined. FB removal significantly increased the plant height, LA, and plant biomass in both years. Lint yields were increased 7.5 and 5.2% by removal compared with their controls in 2003 and 2004, respectively. Significant increases in boll size （5.7 and 5.1%） were also observed in removal than in control for both years. Either NFN/LA or DWFF/LA was significantly reduced by removal before 40 d after removal; however, both NFN/LA and DWFF/LA were significantly enhanced by FB removal at 80 d after removal compared to the untreated control. There was no significant difference in fiber quality in the first two harvests between removal and control, but fiber strength and micronarie in the third harvest were significantly improved by FB removal. In terms of leaf Chl, Pn rate, levels of total N, P, and K in late season, leaf senescence was considerably delayed by FB removal. Levels of CrylAc protein in the fully expanded young leaves were considerably higher in FB-excised plants than in control, indicating FB removal enhanced CrylAc expression. It is suggested that the yield and quality improvement with FB removal may be attributed to the increased NFN/LA or DWFF/LA in late season and delayed leaf senescence, respectively. FB removal can be a

关键词： branch removal Bt cotton Cry lAc protein leaf senescence photosynthetic rate sink/source ratio

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