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Functions and mechanisms of the CBL-CIPK signaling system in plant response to abiotic stress

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Progress in Natural Science:Materials International 2009年第6期19卷 667-676页

作者： Ruifen Li a,1, Junwen Zhang a,b,1, Jianhua Wei a, Hongzhi Wanga, Yanzhen Wanga, Rongcai Ma a, a beijing Agro-Biotechnology Research Center, beijing academy of agriculture and forestry sciences, beijing 100097, China b Life Science College, Capital Normal University, beijing 100037, China beijing Agro-Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 China Life Science College Capital Normal University Beijing 100037 China

To cope with environmental stimuli, plants have evolved precise regulatory mechanisms to perceive, transduce and respond to abiotic stresses that can negatively affect growth and development. The CBL-CIPK signaling system is a newly emerging plant-specific and Ca2+-dependent network mediating abiotic stress tolerance. CBLs may sense a Ca2+ signature triggered by abiotic stresses, and have specific interactions with novel CIPK-type kinases after binding Ca2+. The CBL/CIPK complexes may post-translationally phosphory-late downstream target proteins to regulate abiotic stress tolerance in a cell or tissue-specific manner. In some cases transcription factors are induced to activate stress-responsive genes that control adaptation reactions. The CBL-CIPK signaling system exhibits specificity, diversity and complexity. Meanwhile, cross talk also exists in the CBL-CIPK signaling. To date, significant progress has been made in the role of the CBL-CIPK signaling system in responding to salt, low K+ and to high pH, which will provide a fast and efficient method of molecular design breeding combined with the CBL/CIPK engineering of crop plants, for enhanced tolerance to abiotic stresses. However, more CBL/CIPK components remain to be identified, particularly from specific plants that grow in conditions with abiotic stress, and the specificity of their abiotic stress signaling will need to be dissected.

关键词： Calcium signal CBL CIPK Signal transduction Abiotic stress

Estimation of Sand Transportation Rate for Fixed and Semi-Fixed Dunes Using Meteorological Wind Data

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Pedosphere 2009年第1期19卷 129-136页

作者： HU Xia LIU Lian-You LI Shun-Jiang XIAO Bi-Lin LIU Mu-Xin Key Lab of Environment Change and Natural Disaster Ministry of Education Beijing Normal Univeristy Beijing 100875 （China） academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs/Ministry of Education Beijing Normal University Beijing 100875 （China） State Key Laboratory of Soil and Sustainable agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing 21008 （China） Institute of Plant Nutrition and Resources Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 （China） Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 （China）

Taibus County, Inner Mongolia, China, lies in a farming-pastoral ecotone, where severe wind erosion and various aeolian sand hazards are prevalent and fixed and semi-fixed sand dunes occur frequently. This study was conducted to investigate the relationships between sand transportation rate and wind speed for the fixed and semi-fixed sand dunes based on field measurements. The annual quantity of soil erosion by wind was estimated using meteorological wind data. The results indicated that the sand transportation rate in Taibus County in 2000 was 57.38 kg cm-1 year-1 for the semi-fixed dunes and 4.56 kg cm-1 year-1 for the fixed dunes. The total duration of erosive winds covered 12.5% of the time of the year, and spring posed the highest potential of sand transportation. Wind with low speed (≤ 17 m s-1) and high frequency plays a dominant role in sand transportation, while strong wind (≥ 17 m s-1) with low frequency significantly enhanced the sand transportation. Erosive wind speed, directions, and frequency were three crucial dynamic factors influencing sand hazards in the farming-pastoral ecotone. The dominant factors intensifying sand and dust storms in Taibus County might be related to the favorable wind condition in combination with the durable drought, which led to land desertification and vegetation degradation.

关键词： fixed and semi-fixed dunes meteorological wind data sand transportation rate wind erosion

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USING THIOACIDOLYSIS AND GC TO DETERMINE THE LIGNIN STRUCTURE IN PLANT

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USING THIOACIDOLYSIS AND GC TO DETERMINE THE LIGNIN STRUCTUR...

第四届智能化农业信息技术国际学术会议

作者： Nan Lin~1 Zhihong Ma~2 Jianhua Wei~(1*) 1 beijing Agro-biotechnology Research Center beijing academy of agriculture and forestry sciences.beijing 100097 China 2 Center for Agri-produt and Environment Quality Analysis beijing academy of agriculture and forestry sciences beijing 100097 China

＜正＞Thioacidolysis procedure was used to deploymerize the lignin of poplar （hardwood）, conifer （softwood） wood and *** degradation products were ananlyzed with Gas Chromatography （GC）.The results showed that Thioacidolysis is more applicable to the wood lignin analysis than that of ***,this procedure was used the determinate lignin structure of one transgenic poplar wood,which lignin biosynthesis was depressed.

关键词： Thioacyldolysis GC lignin structure

Leaf Turgor Potential, Plant Growth and Photosynthesis in Organically Fertilized Sweet Corn

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Pedosphere 2004年第2期14卷 165-170页

作者： XUHui-Liant WANGXiao-Ju WANGJi-Hua XURong-Ya ZHAOAi-Hua InternationalNatureFarmingResearchCenter HataNagano390-1401（Japan）.E-mail：huilian@janis.or.jp SaitamaCenterofEnvironmentalsciences Saitama347-0115（Japan） beijingacademyofagricultureandforestrysciences Beijing100081（China）

A greenhouse pot experiment was conducted using a complete random design with six replications. A pressure-volume curve analysis was employed to study the effects of organic fertilizers on plant water relations in sweet corn (Zea mays L. cv. Honey-bantam) in terms of leaf osmotic concentration (Cs), osmotic potentials at full turgid status (πFT) and at incipient plasmolysis (πIP), and of symplastic (ζsym) and apoplastic (ζapo) fractions in the tissue water compartment in relation to photosynthetic capacity (Pc) and dry mass accumulation. At the seedling stage (day 15), plants with chemical fertilizer treatments showed lower πFT, πIP and ζapo and higher Cs, ζsym and PC than those with organic fertilizer treatments. Compared to PC and relative growth, where values from day 15 to day 75 were first lower for organic treatments and then higher, ζsym and Cs values were similar, while πFT and πIP were opposite being higher then lower. Dry mass production with organic fertilizer was higher than or close to the chemical fertilizer treatments in the later growth stage (day 75), though dry mass production with chemical fertilizers was much higher in the early and middle growing stages (days 15 and 45). Increased photosynthesis and dry mass production in later growth stages due to organic fertilizers were associated with increased osmotic concentration in the tissue and the symplastic fraction of the tissue water compartment. These might favor stomatal opening and biochemical activities.

关键词： leaf photosynthesis osmotic potential sweet corn (Zea mays L.) turgor potential water potential

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THE PRELIMINARY INVESTIGATION OF THE HOST PLANTS AND STUDIES ON BIOLOGY OF BEMISIA TABACI（GENNADIUS）

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THE PRELIMINARY INVESTIGATION OF THE HOST PLANTS AND STUDIES...

The ⅩⅤth International Plant Protection Congress

作者： ZHANG Zhi-li LUO Chen ZHANG Fan WANG Su-qin Institute of Plant and Environmental Protection beijing academy of agriculture and forestry sciences beijing 100089 China

An emerging draft sequence of the tomato genome-chromosome 3 sequencing in China

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An emerging draft sequence of the tomato genome-chromosome 3...

第十一届全国植物基因组学大会

作者： Jianfeng Ren~1,Liuhua Yan~1,Shengxiong Huang~1,Changbao Li~2,Jiuhai Zhao~1,Bao Wang~1,Hongling Jiang~1 and Chuanyou Li~(1*) 1 Institute of Genetics and Developmental Biology,Chinese academy of sciences,beijing 100101,China 2 beijing Vegetable Research Center,beijing academy of agriculture and forestry sciences,beijing 100097, China

Tomato(Solanum lycopersicum) is considered as a unique model system for studying fruit biology and plant *** a small diploid genome(～950 Mb) and high synteny conservation with other Solanaceae,tomato genome will serv...

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外来入侵生物-B型烟粉虱的发生规律和防治技术

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中国蔬菜 2005年第B10期 74-77页

作者：朱国仁中国农业科学院蔬菜花卉研究所

通过形态学、生物测定、mtDNA COI基因分子标记和分子生态学研究,证实了近年在我国广大地区发生的B型烟粉虱为外来入侵生物,探讨了爆发成灾机理,明确了基础生物学特性和发生规律,提出了以隔离、净苗、诱捕、寄生和调控为核心的IPP控制... 详细信息

通过形态学、生物测定、mtDNA COI基因分子标记和分子生态学研究,证实了近年在我国广大地区发生的B型烟粉虱为外来入侵生物,探讨了爆发成灾机理,明确了基础生物学特性和发生规律,提出了以隔离、净苗、诱捕、寄生和调控为核心的IPP控制技术体系,应用结果综合效益显著。

关键词：入侵害虫烟粉虱 B-生物型 IPP技术体系

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农业工程在豆店农业现代化进程中的作用

农业工程学报 1986年第1期 11-16页

作者：程序北京市农林科学院农业综合发展研究所

本文概述了在华北中北部和京郊平原地区带有普遍意义的豆店村农业现代化进程的三个发展阶段。首先,进行种植制度的改革,充分利用光热条件和综合运用业已改善的水肥条件及科学技术,使粮食生产获得突破性的发展;继而进一步发展以大幅度提... 详细信息

本文概述了在华北中北部和京郊平原地区带有普遍意义的豆店村农业现代化进程的三个发展阶段。首先,进行种植制度的改革,充分利用光热条件和综合运用业已改善的水肥条件及科学技术,使粮食生产获得突破性的发展;继而进一步发展以大幅度提高饲养经济效益为中心的第二性生产一畜牧业;最后,以丰富的农、畜产品为前提,发展粮食和副食品加工业和综合利用,确保全面的系统效益不断提高;并达到经济、社会和生态三个效益的统一。文中具体论述了以农业机械化为重点的农业工程措施在豆店村农业现代化建设中四方面的作用:1.农艺和农机结合实现农机化是保证复种制成功的关键;2.农机化在经济发达地区必然先行,并将有效地防止其农业萎缩;3.农业工程措施是农村养殖业取得实质性进展的必备条件; 4.农业工程措施在实现'种、养、加'一体化和创建带有中国特色的农村新产业中将起决定性推动作用。

关键词：农业京郊粮食单产平原地区单位面积产量农业机械化农机化

Screening for Anti-virus Substance from Plant Extracts

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Screening for Anti-virus Substance from Plant Extracts

中国植物病理学会2004年学术年会

作者： TIAN Zhaofeng~1, QIU Jiyan~1, LIU Weicheng~1, LI Yongdan~2 (~1 Institute of Plant & Environment Protection, beijing academy of agriculture & forestry sciences, beijing 100089, China ~2 Department of Plant Protection, China agriculture University, 100094)

＜正＞A number of plant extracts have been shown to contain some inhibitors that can protect plant from infection of virus. At present, Hundreds of species of plants belong to 23 families have been screened for antiphytoviral activity in our study. Of all tested, three of them are found to be much more effective than others. Preliminary results indicate that the substance with inhibitory activity to plant virus are protein, polysaccharides and biogenic alkali. Especially, the polysaccharides from weed S.L have shown strong inactivation and inhibition activity to viruses in vitro, while partiallyinhibit virus from multiplication and spreading in vivo. Also, the polysaccharide is effective in the induction of tolerance to the infection of plant viruses, such as TMV and CMV. It has been demonstrated that S.L polysaccharide induces the increase of activity level of enzymes such as peroxidase and its isoenzymes which are usually correlated to some extend with the degree of tolerance of plant to virus infection.

关键词： nature substance inhibiting activity curative effect plant virus