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白梭梭幼苗生长和生物量分配对不同盐分类型和浓度的响应

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干旱区研究 2012年第2期29卷 194-202页

作者：陆海鹰张元明中国科学院干旱区生物地理与生物资源重点实验室中国科学院新疆生态与地理研究所新疆乌鲁木齐830011 中国科学院研究生院北京100049

采用盆栽实验,设置3种盐分类型(NaCl,Na2SO4以及两者等摩尔比例混合盐)和6个浓度梯度〔0(CK),50,100,200,300,500 mmol/L)〕,探讨了白梭梭(Haloxylon persicum Bunge ex Boiss.et Buhse)幼苗生长以及不同生长期地上地下生物量分配,对不... 详细信息

采用盆栽实验,设置3种盐分类型(NaCl,Na2SO4以及两者等摩尔比例混合盐)和6个浓度梯度〔0(CK),50,100,200,300,500 mmol/L)〕,探讨了白梭梭(Haloxylon persicum Bunge ex Boiss.et Buhse)幼苗生长以及不同生长期地上地下生物量分配,对不同盐分类型及浓度的响应。结果发现:①不同盐分类型和浓度处理下,白梭梭幼苗同化枝直径和分叉数具有明显差异,幼苗株高、基径和同化枝枝长随盐分浓度增大而减小,适度盐分浓度(300mmol/L)促进主根生长,高盐分浓度(500 mmol/L)则具有显著抑制作用。②随处理时间和盐分浓度的增加,白梭梭幼苗生物量积累受到的抑制不断增大,与对照相比,处理后期(第75 d)500 mmol/L浓度的NaCl,Na2SO4和混合盐处理下,白梭梭幼苗总生物量分别降低77%,87%和78%,地上生物量分别降低78%,87%和74%,地下生物量分别降低75%,81%和76%。③随时间的延长,白梭梭幼苗根冠比在各盐分处理下均呈增大趋势,但随盐浓度增加,根冠比变化趋势随盐分类型和处理时间的不同而有所区别。④白梭梭幼苗地上-地下生物量存在明显异速生长关系,且盐分处理未显著改变异速生长指数,均表现为地下生物量累积速率大于地上生物量。研究结果表明,在盐分胁迫下,白梭梭幼苗地上地下生物量分配对Na2SO4作出的响应要先于NaCl和混合盐,随处理时间的延长,对3种盐分类型作出的响应趋于一致,即将更多的生物量分配给地下根系,以缓解盐分过多造成的水分短缺等影响,维持植物的存活,符合最优分配理论。

关键词：盐渍化土地白梭梭(Haloxylon persicum Bunge ex Boiss.et Buhse) 幼苗生物量累积速率盐分类型浓度梯度古尔班通古特沙漠

On the HPLC Fingerprint of Zhuang Medicine Spilanthes paniculata Wall. ex DC.

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Medicinal Plant 2019年第3期10卷 19-23页

作者： Li LI Fengfeng XIE Pinghua YAN Xiangyan ZENG Yi CAI Guangxi University of Chinese Medicine

[Objectives] To establish the HPLC fingerprint of Spilanthes paniculata Wall. ex DC. and provide reference for the quality control of medicinal materials. [Methods]Welch Ultimate XB-C18( 5 μm,250 mm ×4. 6 mm) chromatographic column was adopted,and the mobile phase was acetonitrile-0. 1% phosphoric acid aqueous solution for gradient elution,the detection wavelength was 328 nm,the column temperature was 25 ℃,the similarities of 18 different batches of medicinal materials were evaluated,and the HPLC fingerprint chromatogram of S. paniculata Wall. ex DC. was set up. [Results] The RSDs of precision,repeatability and stability of HPLC fingerprint of 18 batches of S. paniculata Wall. ex DC. medicine materials were all less than 3%;HPLC reference fingerprint of the medicine materials was established.[Conclusions]HPLC fingerprint was established,its data were stable and reliable,and the method was simple and efficient,which could provide reference for the quality evaluation of Zhuang medicine S. paniculata Wall. ex DC.

关键词： Zhuang medicine Spilanthes paniculata Wall. ex DC. HPLC Fingerprint

Assessment of Minor and Trace Elements in Aquatic Macrophytes, Soils and Bottom Sediments Collected along Different Water Objects in the Black Sea Coastal Zone by Using Neutron Activation Analysis

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American Journal of Analytical Chemistry 2017年第4期8卷 225-244页

作者： Pavel Nekhoroshkov Alexandra Kravtsova Alexander Kamnev Olga Bun’kova Octavian Duliu Marina Frontasyeva Igor Yermakov Frank Laboratory of Neutron Physics Joint Institute for Nuclear Research Dubna Russia Faculty of Biology Lomonosov Moscow State University Moscow Russia Faculty of Soil Science Lomonosov Moscow State University Moscow Russia Department of the Structure of Matter Earth and Atmospheric Physics and Astrophysics Faculty of Physics University of Bucharest Bucharest Romania

The levels and compartmentalization of Na, Mg, Al, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, As, Se, Br, Rb, Sr, Mo, Sb, I, Cs, Ba, La, Ce, Sm, Eu, Tb, Hf, Ta, Au, Th, and U in Phragmites australis (Cav.) Trin. ex Steud., Carex conescens L. and Cladophora sericea (Hudson) Kutzing from the Caucasian coast of the Black Sea-Anapa recreational region was investigated by Neutron Activation Analysis. The study touches upon subject of the sediment-to-plant and root-to-leaf elemental transfer as well as of the influence of anthropogenic pollution on wetland ecosystems in zone of resort. The content of the majority of considered elements was found higher in the belowground organs of P. australis than in the aboveground tissues while a reverse regularity was evidenced for C. conescens. The levels of elements decrease from bottom sediments to aquatic plants with the notable exception of the halogens Cl, Br and I that presented 5 to 100 fold higher content in plants than in sediments. The increased levels of As, Mo, and Sb in some soil and sediment samples most probably indicate the anthropogenic pollution. It recommends them for a continuous monitoring of the same area.

关键词： Trace Elements Neutron Activation Analysis The Black Sea Phragmites Australis (Cav.) Trin. ex Steud. Carex conescens L. Cladophora sericea (Hudson) Kutzing

一个与氰苷生物合成相关的植物CYP基因的克隆与表达分析

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分子植物育种 2020年第7期18卷 2182-2187页

作者：原晓龙陈中华李云琴王毅云南省林业科学院云南省森林植物培育与开发利用重点实验室国家林业局云南珍稀濒特森林植物保护与繁育重点实验室昆明650201

氰苷是由植物细胞色素P450单加氧酶(CYP)催化氨基酸生成的次生代谢产物,与植物的防御和抗逆境胁迫相关。为了获得蒜头果中与氰苷生物合成有关的CYP基因,本研究通过分析蒜头果转录组数据,从中分离并克隆得到1条细胞色素P450基因(命名为Mo... 详细信息

氰苷是由植物细胞色素P450单加氧酶(CYP)催化氨基酸生成的次生代谢产物,与植物的防御和抗逆境胁迫相关。为了获得蒜头果中与氰苷生物合成有关的CYP基因,本研究通过分析蒜头果转录组数据,从中分离并克隆得到1条细胞色素P450基因(命名为MoCYP79),并对其进行生物信息学分析及检测该基因在果实不同发育时期的具体表达情况。结果显示,MoCYP79基因的cDNA全长1632 bp,编码543个氨基酸;MoCYP79蛋白含有CYP家族的识别结构域血红素结合域(FSTGRRGC),且与巨桉(XP_010027351.1)、木薯(AAF27290.1,AAF27289.1)等植物CYP79蛋白聚在一支;MoCYP79基因在蒜头果花谢后的果实中表达量呈下降趋势,除发育3个月的果实外,该基因在其余的果实中的表达量均显著高于叶片,从大到小依次为花谢后的果实1个月>2个月>4个月3个月。本实验对研究蒜头果的对病虫害的防御、逆境胁迫的抵御及蒜头果中有效次生代谢产物的发掘具有重要的意义。

关键词：蒜头果(Malania oleifera Chun et S.Lee ex S.Lee) 细胞色素P450 氰苷生物信息学分析组织特异性表达

Practice and exploration of Rural Sci-tech Service Supermarket:A Case Study of Jurong Economic Forest and Fruit Industrial Branch

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Asian Agricultural Research 2013年第5期5卷 32-34页

作者： Weizhong LIU Yabo LIU Jianying ZHANG Nini MAO Zhijian WANG Zhenjiang Institute of Agricultural Science for Jiangsu Hilly District Agricultural Commission of Jurong City

The rural sci-tech supermarket in Jiangsu Province is an innovative model of rural sci-tech service. With reference to the concept of modern commodity supermarket, this model integrates variety, technology and achievement information into the sci-tech supermarket platform, provides various agricultural sci-tech services, and improves farmers recognition and acceptance of science and technology, so as to accelerate conversion of scientific and technological achievements and demonstration and popularization of new varieties, new technologies and new models. This paper analyzes practice of Jurong economic forest and fruit industrial branch and presents recommendations for building Jiangsu rural sci-tech service supermarket.

关键词： Rural sci-tech service supermarket Practice and ex

Sylvia Plath And Her Poetry Viewed In Psychological Aspect

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海外英语 2014年第1X期 181-183页

作者：宋毅昆明学院外国语学院云南昆明650214

Sylvia Plath is a major representative of the American confessional poetry. Her idiosyncratic poetry and her suicide in1963 aroused an intensive interest and study on her and her poems that hasn't subsided until now. This paper tries to explore the so-called Sylvia Plath myth and analyzes the various factors that molded her extreme psychology, theme and style by Lacanian psychoanalytic approach.

关键词： Sylvia Plath myth Sylvia Plath’s extreme poetry ex

Polymer Emulsion Industry is Upgrading

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China Chemical Reporter 2008年第32期19卷 22-23页

作者： By Gong Beifan

Steady growth in production Polymer emulsion has been widely applied for its advantages such as good adhesiveproperties,colorless and transparent film,safety。

关键词： emulsion adhesive revenue morethan considerably ex

Reception Marks Second Anniversary of China-Spain Forum

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Voice of Friendship 2005年第5期 19-21页

作者： Our Staff Reporter

International exchanges

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Peace 2014年第2期 61-62页

On April 1st,2014,CPAPD Deputy Secretary General Ms.Chen Huaifan met with Mr.Djudjuk Juyoto Suntani,President of the World Peace Committee,Indonesia,who headed the delegation,in the CPAPD office.The two sides exchanged views on issues of common concern including cooperation between the two organizations and the inheritance of Chinese culture.

关键词： Peace cooperation inheritance delegation headed ex