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Utilization of Changyun Jujube, a Cultivar with Resistance to Witches Broom Disease
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作者 Ya LIU Nannan SUN +2 位作者 Li ZHAO Jiayun LIU Xiumei GAO 《Plant Diseases and Pests》 2024年第3期23-25,30,共4页
In 2021,the Shanting District Fruit Industry Service Center conducted an application test of a treatment for jujube witches broom disease using Changyun jujube.The results demonstrated that when diseased Changhong juj... In 2021,the Shanting District Fruit Industry Service Center conducted an application test of a treatment for jujube witches broom disease using Changyun jujube.The results demonstrated that when diseased Changhong jujube plants were grafted with Changyun jujube in the spring using bark or cleft grafting,the majority of the new shoots of Changyun jujube exhibited no symptoms of witches broom disease,while a few exhibited symptoms of the disease.With the growth of new shoots,the symptoms of witches broom disease gradually abated,returning to normal growth and development.Similarly,the symptoms of witches broom disease on the rootstock below the grafting mouth also gradually abated,returning to normal.The Changyun jujube rootstock was utilized as the intermediate rootstock to grafting the jujube cultivars Qiyuexian and Fucuimi.The two cultivars were subsequently affixed with branch bark from the witches broom disease.The two cultivars did not exhibit any symptoms of witches broom disease,thus providing an opportunity to investigate potential treatments for this disease in jujube.Finally,the cultivation techniques of the Changyun jujube were presented. 展开更多
关键词 Changyun Jujube Resistance to witches broom disease Crispy jujube
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Identification of the SERK Gene Family in Paulownia fortunei and Its Involvement in the Response to Biotic and Abiotic Stresses
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作者 Tongman Zhao Yujie Fan +2 位作者 Yabing Cao Xiaogai Zhao Guoqiang Fan 《Phyton-International Journal of Experimental Botany》 SCIE 2023年第9期2473-2488,共16页
Somatic embryogenesis receptor-like kinases(SERKs)are receptor-like proteins that contain leucine-rich repeats and are involved in various signaling pathways.This study identified SERK family members in the Paulownia ... Somatic embryogenesis receptor-like kinases(SERKs)are receptor-like proteins that contain leucine-rich repeats and are involved in various signaling pathways.This study identified SERK family members in the Paulownia fortunei genome and analyzed their characteristics and expression profiles using bioinformatics methods.We identified 12 SERK genes with relatively conserved gene structures and motifs that were distributed unevenly on eight Paulownia chromosomes.The gene promoters contained various cis-acting elements that regulated the expression of the PfSERK genes in response to hormones and abiotic stresses.Synteny analysis indicated that 10 segmental duplication events had occurred during evolution of the PfSERK family.The expression profile of PfSERKs in various tissues of Paulownia fortunei was detected by quantitative real-time PCR(qRT-PCR).Many PfSERK genes can respond to drought and salt stress.Combined with RNA-seq and protein interaction network,it is speculated that PfSERK3/11 may participate in the occurrence of Paulownia witches’broom(PaWB)by regulating the plant height of Paulownia. 展开更多
关键词 Gene expression Paulownia fortunei Paulownia witches’broom SERK
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Technical Studies of Controlling Jujube Witches Broom Disease with Resistant Rootstock
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作者 Xiaojun LI Hao ZHAI +3 位作者 Jianlu QU Yong ZHANG Guangfang ZHOU Qiong ZHANG 《Plant Diseases and Pests》 CAS 2023年第2期19-22,共4页
[Objectives]The paper was to screen and identify the control effect of resistant rootstock on jujube witches broom disease.[Methods]The seeds or branches of disease-free plants were collected from wild jujube bushes i... [Objectives]The paper was to screen and identify the control effect of resistant rootstock on jujube witches broom disease.[Methods]The seeds or branches of disease-free plants were collected from wild jujube bushes infected by witches broom disease,and 5434 seedlings were obtained by sowing or cutting.The virus was inoculated by grafting diseased bark.After 6 years of preliminary screening,40 plants with resistance to jujube witches broom disease were obtained.Taking these resistant plants as the rootstocks,the susceptible variety‘long red jujube’was grafted at a height of 40 cm.When the plants grew to appropriate thickness,diseased bark was grafted to‘long red jujube’and rootstock to transmit the virus.After 18 years of observation and judgment,4 rootstock strains with high resistance or immunity to jujube witches broom disease were finally determined,namely 90801,90803,90806 and 908011.The susceptible variety‘long red jujube’was grafted to 4 rootstocks and inoculated the virus through diseased bark grafting method.[Results]The resistant rootstock had obvious disease resistance effect.When the branches of 90801 and 90803 rootstocks were grafted to the trunk of diseased trees,the symptoms of jujube witches broom disease gradually alleviated till disappeared.[Conclusions]Using germplasm with high resistance or immunity to jujube witches broom disease as rootstock can effectively prevent the spread of jujube witches broom disease,and bridging the trunk of diseased trees with branches from resistant rootstock has certain therapeutic effect. 展开更多
关键词 Jujube tree Jujube witches broom disease Prevention and control technology ROOTSTOCK
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Morphological Characteristics Analysis of 11 Broom Sorghum Varieties 被引量:1
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作者 乌艳红 李志明 +8 位作者 辛晓平 孙德欣 吕宁 乌仁图亚 娜日娜 赵建平 王军 韩晓华 李峰 《Agricultural Science & Technology》 CAS 2009年第1期15-18,42,共5页
[Objective] To provide a theoretical basis for high-yield breeding of broom sorghum.[Method] Using 11 kinds of broom sorghum collected at home as research objects, the differences in morphological characteristics of b... [Objective] To provide a theoretical basis for high-yield breeding of broom sorghum.[Method] Using 11 kinds of broom sorghum collected at home as research objects, the differences in morphological characteristics of broom sorghum were compared through the survey of some indicators, such as plant height, tillering, inflorescence, stem node, stem-leaf ratio, yield, and so on. [Result] The 11 kinds of broom sorghum were different in morphological characteristics with large amplitude of plant height; zygl-1, zygl-6, zygl-8 and zygl-9 were appropriate for fixed broom type; zygl-9 had the highest integrated production. [Condusion] The study laid the foundation for further exploring breeding, cultivation and promotion of broom sorghum. 展开更多
关键词 Broom sorghum Morphological characteristic ANALYSIS
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Identification and Control of Paulownia fortunei Witches Broom Disease
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作者 李栋海 《Plant Diseases and Pests》 CAS 2010年第1期12-13,17,共3页
Pathogen and characteristics,occurrence law,damage symptom of Paulownia fortunei witches broom disease were simply described,and the control method of the disease was summarized.
关键词 Paulownia fortunei (seem.) Hemsi Witches broom disease PATHOGEN Occurrence status Control measures
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中国古代祈晴祭祀研究——兼说民俗中的“扫晴娘” 被引量:2
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作者 陈俊谕 《农业考古》 CSSCI 北大核心 2009年第4期284-288,共5页
First of all,the chapter on the ancient Chinese festival yu and floods Festival,to correct for Qiu Yu Yu Festival Festival of errors.That the ancient Chinese Qing Yu Garden Festival in the same breath with the rain,th... First of all,the chapter on the ancient Chinese festival yu and floods Festival,to correct for Qiu Yu Yu Festival Festival of errors.That the ancient Chinese Qing Yu Garden Festival in the same breath with the rain,the performance of the same belief in the concept of goal difference.Oracle combination of research results,further sweep the ancient Ching Chi-day religious ceremony,a long history of origin.From all over the folk culture of looking for some clear religious imperative,such as Chinese the Broom Woman for Fine Days and Japan’s sunny dolls,to explore their image of the godhead,clear imperative to explore the thinking behind religious connotations.Clear from the worship of our ancestors that efforts to change the reality of the situation as a means of survival,see human nature to the fight against the awakening of consciousness,ceremony and customs of their farming civilization of knowledge and research there is a value that can not ignored. 展开更多
关键词 FESTIVAL yu QING WORSHIP PRAY the BROOM Woman for Fine DAYS
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Synthesis and characterization of lower generation broom molecules 被引量:14
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作者 Jun Wang Cui Qin Li +2 位作者 Shu Yan Zhang Fang Sun Teng Jie Ge 《Chinese Chemical Letters》 SCIE CAS CSCD 2008年第1期43-46,共4页
Dendritic molecules with dodecyl groups as the hyperbranchs were synthesized in methanol by Michael addition with dodecylamine and methyl acrylate as raw materials. This new-type dendritic molecules were called vivid... Dendritic molecules with dodecyl groups as the hyperbranchs were synthesized in methanol by Michael addition with dodecylamine and methyl acrylate as raw materials. This new-type dendritic molecules were called vividly "broom molecules" in this report. The surface tension of the aqueous solution of broom molecule terminated amino group was measured by using the dropvolume method. The demulsification performance of the broom molecules for the oil/water (O/W) simulated crude oil emulsion was examined. The experimental results revealed that, as a new-type of surfactants, the broom molecules terminated amino groups showed demulsification for the O/W simulated crude oil emulsion. 2007 Jun Wang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All fights reserved. 展开更多
关键词 DENDRIMER Broom molecule Surface tension DEMULSIFICATION
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Spatial pattern of paulownia witches' broom and its effects on the growth of Paulownia elongata in Shaanxi Province,China 被引量:3
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作者 LI Jin ZHANG Xing-yao TIAN Cheng-ming 《Forestry Studies in China》 CAS 2009年第1期34-38,共5页
The spatial pattern of paulownia witches' broom was investigated using an Iwao's (m^*-m) model in Shaanxi Province, China. Iwao's (m^*-m) model revealed that spatial pattern of paulownia witches' broom exhib... The spatial pattern of paulownia witches' broom was investigated using an Iwao's (m^*-m) model in Shaanxi Province, China. Iwao's (m^*-m) model revealed that spatial pattern of paulownia witches' broom exhibited a uniform distribution in sample plots. In this model, characteristics of contagiousness coefficient (a) justified the probability of infection by virus-transmission vectors. For tree age less than six, susceptible individuals were aggregated as clusters in the plots and then mutually repelled over age. A preliminary survey of stand volume show that from age five to six, stand volumes of disease grade II showed excessive vegetative growth and returned to normal level between ages ten and 11. Loss rate of volume increment with disease grade II decreased, and then returned to raising trend both at grades III and IV. This phenomenon is possibly caused by an over-compensation effect and by environmental factors. The redundancy of growth hormones in branches, shoots, leaves, buds and roots increased the stem volume of entire trees. 展开更多
关键词 paulownia witches' broom spatial pattern stand volume loss rate of volume increment over-compensation effect
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Relationship between Witches' Broom Protein and Dynamic of Some Amino Acids in Paulownia Tree Leaves 被引量:1
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作者 范国强 蒋建平 《Journal of Forestry Research》 SCIE CAS CSCD 1997年第3期164-166,共3页
This paper dealt with the SDS polyacrymide gel electrophoresis of proteins ahd analysis of the amino acids in the diseasedand healthy leaves with the same strain respectively, which were at the same side and height, o... This paper dealt with the SDS polyacrymide gel electrophoresis of proteins ahd analysis of the amino acids in the diseasedand healthy leaves with the same strain respectively, which were at the same side and height, of Paulownia catalpifolia, P. elongata, P. albiphloea and P. kauakamii respectively. The results indicated that the leaves of 4 species of Paulownia trees with witches' broom had one protein band, of which molecular weight was 12 kD, which did not appear in the healthy leaves free of phytoplasmas. Moreover, the protein quantity in the affected leaves was more than that in the healthy leaves free of phytoplasmas, At the same time, there was significant difference on the amino acids between the healthy and diseased leaves of P. catalpifolia and P. kawakamii. The amount of cystine in the affected leaves was higher than that in the healthy leaves, but the change of amount of phenylalanine in the affected and healthy leaves was contrary.These changes of proteins and amino acids in the leaves might be related to the witches' broom of the Parlounia trees. 展开更多
关键词 PAULOWNIA Witches' broom PROTEIN Amino acid
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Use of random amplified polymorphic DNA (RAPD) analysis to detect jujube witches' broom phytoplasmas
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作者 FAN Xin-ping TIAN Jian-bao Bertaccini Assunta 《Journal of Agricultural Science and Technology》 2009年第4期1-4,16,共5页
Jujube witches' broom is a devastating disease of Ziziphusjujube that occurs in various jujube regions of China. Nucleic acid extracted from midribs of samples collected from three jujube varieties ("Suanzao", "L... Jujube witches' broom is a devastating disease of Ziziphusjujube that occurs in various jujube regions of China. Nucleic acid extracted from midribs of samples collected from three jujube varieties ("Suanzao", "Lajiaozao" and "Langzao") from symptomatic and asymptomatic shoots were tested by random amplified polymorphic DNA analyses. Using 13 different 10 and 11-bp random primers the amplification of jujube DNA was achieved from all the samples; AMI4 primer provided amplification of specific DNA fragments of about 400 bp, only from samples collected from symptomatic plants. No genetic variations in these varieties were identified using the other 11 arbitrary primers; only with primer AL07 it was possible to differentiate "Langzao" from the other two varieties tested. All the experiments were repeated 2 times and the results were consistent. Compared with PCR analyses with phytoplasma-specific primers, RAPD techniques resulted to be an alternative rapid and sensitive method for detecting jujube phytoplasmas presence in different jujube varieties. 展开更多
关键词 jujube witches' broom PHYTOPLASMAS Random Amplified Polymorphic DNA DETECTION
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广东枣疯病植原体的鉴定 被引量:5
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作者 李正刚 佘小漫 +4 位作者 汤亚飞 于琳 蓝国兵 邓铭光 何自福 《植物病理学报》 CAS CSCD 北大核心 2019年第2期281-282,共2页
植原体是一类重要的植物病原菌,属柔膜菌纲、植原体属,没有细胞壁,专性寄生在植物的韧皮部筛管细胞内[1]。枣疯病(Jujube witches’ broom,JWB)是枣树的重要病害之一,对枣树种植产业具有毁灭性的危害。枣疯病在我国分布广泛,从四川、重... 植原体是一类重要的植物病原菌,属柔膜菌纲、植原体属,没有细胞壁,专性寄生在植物的韧皮部筛管细胞内[1]。枣疯病(Jujube witches’ broom,JWB)是枣树的重要病害之一,对枣树种植产业具有毁灭性的危害。枣疯病在我国分布广泛,从四川、重庆到河北、山东、山西和北京都有分布,而在华南地区暂无报道。 展开更多
关键词 JUJUBE witches’ BROOM PHYTOPLASMA MOLECULAR detection PHYLOGENETIC analysis
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Surface modification of broom sorghum-based activated carbon via functionalization with triethylenetetramine and urea for CO2 capture enhancement 被引量:6
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作者 Elaheh Mehrvarz Ali A. Ghoreyshi Mohsen Jahanshahi 《Frontiers of Chemical Science and Engineering》 SCIE EI CAS CSCD 2017年第2期252-265,共14页
A new type of activated carbon (AC) was synthesized using broom sorghum stalk as a low cost carbon source through chemical activation with H3PO4 and KOH. The AC obtained by KOH had the largest BET surface area of 16... A new type of activated carbon (AC) was synthesized using broom sorghum stalk as a low cost carbon source through chemical activation with H3PO4 and KOH. The AC obtained by KOH had the largest BET surface area of 1619 m^2·g^-1 and the highest micropore volume of 0.671 cm^3·g^-1. CO2 adsorption was enhanced by functionalizing the AC with two different amines: triethylenetetramine (TETA) and urea. The structure of the prepared ACs was characterized by Brunauer-Emmett-Teller method, scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and acid-base Boehm titration analyses. The adsorption behavior of CO2 onto raw and amine-functionalized ACs was investigated in the temperature range of 288-308 K and pressures up to 25 bar. The amount of CO2 uptake at 298 K and 1 bar achieved by AC-TETA and AC-urea was 3.22 and 2.33 mmol·g^-1 which shows a 92% and 40% improvement compared to pristine AC (1.66 mmol·g^-1), respectively. Among different model isotherms used to describe the adsorption equilibria, Sips isotherm presented a perfect fit in all cases. Gas adsorption kinetic study revealed a fast kinetics of CO2 adsorption onto the ACs. The evaluation of the isosteric heat of adsorption demonstrated the exothermic nature of the CO2 adsorption onto unmodified and modified samples. 展开更多
关键词 activated carbon broom sorghum FUNCTIONALIZATION CO2 capture
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Transgenic Paulownia Expressing shiva-1 Gene Has Increased Resistance to Paulownia Witches' Broom Disease 被引量:4
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作者 Tao DU Yao WANG Qin-Xue HU Jie CHEN Sheng LIU Wen-Jin HUANG Mu-Lan LIN 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2005年第12期1500-1506,共7页
Stem segments from diseased Paulownia tomentosaXP, fortunei and leaves from healthy control were transformed with the expression vector p438PRSI via Agrobacterium tumefaciens. The p438PRSI vector contained shiva-1 gen... Stem segments from diseased Paulownia tomentosaXP, fortunei and leaves from healthy control were transformed with the expression vector p438PRSI via Agrobacterium tumefaciens. The p438PRSI vector contained shiva-1 gene, which encodes an antibacterial peptide under the control of a CaMV35S promoter. The regenerated plants from transformed explants were planted in a greenhouse and nursery. PCR and Southern blotting analysis showed that the shiva-1 gene was successfully integrated into the Paulownia genome. Transcription of the integrated shiva-1 gene was confirmed by RT-PCR. Bioassay in the green house and phytoplasma DNA-dot blotting demonstrated that resistance to Paulownia witch's broom disease (PWB) increased significantly in shiva-l-transgenic Paulownia. Further investigations indicated that higher Shiva- 1 expression correlated with fewer phytoplasma and less symptoms in diseased transgenic Paulownia. Together, our findings strongly suggest that breeding shiva-1-Paulownia is an effective strategy to control PWB disease. 展开更多
关键词 Agrobacterium tumefaciens PAULOWNIA Paulownia witch's broom PHYTOPLASMA shiva-1.
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Recent developments in the application of oil palm fibers in cement composites 被引量:1
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作者 Emmanuel Owoichoechi MOMOH Adelaja Israel OSOFERO 《Frontiers of Structural and Civil Engineering》 SCIE EI CSCD 2020年第1期94-108,共15页
Fibers obtained from different parts of the oil palm tree(Elaeis guineensis)have been under investigation for possible use in construction.Studies have been carried out investigating the engineering properties and pos... Fibers obtained from different parts of the oil palm tree(Elaeis guineensis)have been under investigation for possible use in construction.Studies have been carried out investigating the engineering properties and possible applications of these fibers.However,the experimental methods employed and the values of mechanical and physical properties recorded by various authors are inconsistent.It has therefore become necessary to organize information which would be useful in the design of oil palm fiber cement composites and help researchers and engineers make informed decisions in further research and application.This review provides information about fibers from different parts of the oil palm,their properties,enhancement techniques,current and potential application in cement composites. 展开更多
关键词 BROOM CEMENT composite CONCRETE oil PALM FIBER Natural fiber-concrete sustainability
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MYCOPLASMA-LIKE ORGANISMS ASSOCIATED WITH CROTALARIA ANAGROIDES WITCHES' BROOM DISEASE
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作者 戴月明 陈乃荣 +1 位作者 沈菊英 陈作义 《Chinese Science Bulletin》 SCIE EI CAS 1981年第12期1125-1127,共3页
Crotalaria anagroides is a very good perennial tallstalk manure crop in South China, usually grown in orchards or beside paddy fields. Each leaf of the normal plant is made up of three small leaves. The raceme grows a... Crotalaria anagroides is a very good perennial tallstalk manure crop in South China, usually grown in orchards or beside paddy fields. Each leaf of the normal plant is made up of three small leaves. The raceme grows at the apex with yellow petals. 展开更多
关键词 PERENNIAL manure yellow paddy BROOM DISEASE flower dwarf AXILLARY suffer elongated
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A new broom sweeps clean:is there a Chinese-style political business cycle?
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作者 Wen Yanbing 《China Finance and Economic Review》 2015年第3期108-128,共21页
Politics is an important cause of economic growth and fluctuations.We present a new Political Business Cycle(PBC)Theory based on the background of recent Chinese economic transformation and government behaviors,explor... Politics is an important cause of economic growth and fluctuations.We present a new Political Business Cycle(PBC)Theory based on the background of recent Chinese economic transformation and government behaviors,explore the economic impact of the National Congress of the Communist Party of China(CPC),the National People’s Congress(NPC)and Chinese People’s Political Consultive Conference(CPPCC)and how they shape and influence the behaviors of local government officials.Based on 1994-2012 inter-provincial panel data of China and using SYS-GMM and LSDVC,we find that there are significant effects in China of PBC and government administration change.Changes in government administration influence the economic behaviors of local governments,which in turn influence local economic development through fiscal decentralization and political promotion tournament.These effects are sustained and robust.In this paper we offer an economic explanation for the Chinese proverb“a new broom sweeps clean,”and try to verify the Chinese-style Political Business Cycle(CPBC).We provide new ideas for further improving the functions of government,optimizing macroeconomic control,and preventing personnel changes in the government from overheating the economy. 展开更多
关键词 political business cycle effect of government personnel change a new broom sweeps clean
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New Broom In the House
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《Beijing Review》 2007年第3期4-4,共1页
关键词 New Broom In the House
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New Broom To Sweep Clean At ABC
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《Beijing Review》 2007年第29期3-3,共1页
The Agricultural Bank of China (ABC) has a new president. The last non- publicly traded state-owned lender in China announced on July 6 that Xiang Junbo, former Vice Governor of the People’s Bank of China, or the cen... The Agricultural Bank of China (ABC) has a new president. The last non- publicly traded state-owned lender in China announced on July 6 that Xiang Junbo, former Vice Governor of the People’s Bank of China, or the central bank, had beenappointed to take 展开更多
关键词 New Broom To Sweep Clean At ABC
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The Broom
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《小学生时代(大嘴英语)》 2009年第10期F0003-F0003,共1页
关键词 小学 英语教学 教学方法 阅读 《The Broom》
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