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甘蔗花叶
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  “甘蔗花叶”译为未确定词的双语例句
     The identity of amino acides between the clones, Y6 and D6, and PIC13 and PIC19, the candidate resistant genes Scmv2 and Scmv1 for sugarcane mosaic virus (SCMV), were 100% and 89%, respectively.
     克隆Y6和D6与候选抗甘蔗花叶病毒基因PIC13和PIC19的氨基酸序列同源性分别为100%和89%,推测克隆Y6和 D6亦可能为抗甘蔗花叶病毒基因的候选。
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     Advances in Sugarcane Mosaic Virus Disease
     甘蔗花叶病毒病的研究进展
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     HC-pro gene, which is encoded by the SCMV genome, is a protein related with aphid-transmission, otherwise it takes part in many other bio-chemistry procession.
     甘蔗花叶病毒基因编码的HC-pro是和蚜虫传播相关的一个蛋白因子,并且和病毒自身的许多生命活动相关。
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     We conclude that additive and dominant effects as well as interactions can be found in the inheritance of resistance to SCMV, and gene effects varied in different genetic background.
     研究表明 ,玉米抗甘蔗花叶病毒基因的加性、显性以及互作效应普遍存在 ,且在不同杂交组合中作用方式不同 ; 抗病性受多对基因控制 ,存在效应强弱之分。
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  相似匹配句对
     Flowers
    
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     Advances in Sugarcane Mosaic Virus Disease
     甘蔗病毒病的研究进展
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     A Promise of Flowers
     的征兆
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     Sugarcane Ecological Agriculture
     甘蔗生态农业
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     A STUDY OF THE CHROMOSOMES OF SUGARCANE
     甘蔗染色体的研究
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30% of artificial inoculation for ScMV infcctivity transmitted tests wore successful at least two strains of ScMV were found to occur in Zheji-ang province as they could not infect Johnson grass ( Sorghum halepense L. ), they did not belong to MDMV-A and ScMV-I.Under electron microscope filamentous particle and the pin wheel or scroll inclusions in systemically infected cells could be observed.The prevalence of sugarcane mosaic epidemics in Yi-wu county might be chiefly due to the frequent use of cane stem cuttings...

30% of artificial inoculation for ScMV infcctivity transmitted tests wore successful at least two strains of ScMV were found to occur in Zheji-ang province as they could not infect Johnson grass ( Sorghum halepense L. ), they did not belong to MDMV-A and ScMV-I.Under electron microscope filamentous particle and the pin wheel or scroll inclusions in systemically infected cells could be observed.The prevalence of sugarcane mosaic epidemics in Yi-wu county might be chiefly due to the frequent use of cane stem cuttings as seed stocks from year to year, resulting in the progressive increase in the ensuing "seed" cane carrying the virus. The mosaic virus carrier "seed" cane is the primary infectious source of ScMV. Aphis is not important in transmitting the disease in this district,artificial inoculation resulted in 30% incidence of the disease. In practice "seed" selection might be used to effectively decrease the disease incidence to less than 5%, and at the sametime increase the fresh weight and sugar content of the cane.

本文报导了1979—1982年对浙江省甘蔗花叶病毒的分布、传播、电镜观察、防治方法和病害对产量、质量影响的研究。结果表明,浙江省甘蔗花叶病毒至少存在两个株系,因均不能侵染约翰逊草(Sorghum halepenseL.),所以不是ScMV-I株系和MDMV-A株系。义乌地区花叶病的流行是和新植蔗区每年切种繁殖有关。种蔗带毒是ScMV的主要来源,蚜虫在传播流行上并不重要。人工汁液接种有30%发病。 受甘蔗花叶病毒感染的细胞经电镜检验,发现有线条状病毒粒子和风轮状及环状的细胞质内含体。 通过选种,可以将花叶病率压低到5%以下,鲜蔗和糖产量均有提高。地膜覆盖虽然不能压低发病率,但具明显的增产作用。温汤浸种的有效温度接近蔗芽致死的限温点,故不宜推广应用。药剂治蚜防病效果不显著。义乌地区现有栽培的品种虽均感病,但品种间的发病率和严重度有差异。

The sugarcane mosaic virus occurring in Zhejiang' s sugarcane plants was studied through maculating to and later isolated from sweet corn seedlings. Studies on physical properties of the virus indicated its thermal inac-tivation point to be at 55℃, dilution end point at 10-4-10-5 and infective retentivity to 48 hrs ( 20-25℃ ) . Inoculation of the virus on to the sorghum varieties, Rio. Atlas, Bugoff and "soft three A" yielded systemic lesions on the leaves.,Inoculations on to maize and Sudan grass (Holcus sudanersis)...

The sugarcane mosaic virus occurring in Zhejiang' s sugarcane plants was studied through maculating to and later isolated from sweet corn seedlings. Studies on physical properties of the virus indicated its thermal inac-tivation point to be at 55℃, dilution end point at 10-4-10-5 and infective retentivity to 48 hrs ( 20-25℃ ) . Inoculation of the virus on to the sorghum varieties, Rio. Atlas, Bugoff and "soft three A" yielded systemic lesions on the leaves.,Inoculations on to maize and Sudan grass (Holcus sudanersis) resulted in systemic infection symptoms. No infection was obtained from inoculation to Johnson grass (Holcus halepensis ) and barley. It was tentatively assumed that the isolate was composed of two strains of ScMV.The partially purified virus serving as antigen in antiserum preparation was obtained by treating the virus extract with TAC (0.1M Tris-0.05M citric acid ) buffer system, clarified with chloroform. To the clarified extract polyethylene glycol ( PEG 6000 or 12000 ) and NaCl were added with stirring to the respective concentrations 8% and 4%. The mixture was subjected to low speed centrifugation ( 4000 rpm ) and the pellet was saved. The supernatant was once more treated with PEG and centrifuged for pellet. The pellets from the two runs of centrifugation were suspended in 1/10 volume of 0.05M boric acid buffer and centrifuged at 2000 rpm. for 10 min. the partially purified virus thus obtained showed in ultra violet absorption spectrum with maximum optical density (O.D. ) at 260 nm and minimum O.D. near 230-240nm. The ratio of 260/280 was 1.26 ±0.08 and that of 280/260 as 0.83 ± 0.06. The antiserum preparation derived from this partially purified virus as antigen showed a titre of 1/256 by the agar gel diffusion method and 1/512 by the tube precipitin method.The prepared antiserum was subjected to tests on infected plants with the double diffusion plate method. Results of the tests showed positive reaction in the sugarcane root stock, sugarcane field plants, young maize plants and infected Sudan grass with distinct precipitation bands. All the corresponding checks yielded negative results.

经对浙江省甘蔗花叶病毒(ScMV)的甜玉米分离物的研究表明,其钝化温度(TIP)为55℃,稀释终点(DEP)为10~(-4)—10~(-5),体外保毒期(LIV)为48小时(20—25℃)。在部分高粱品种如Rio、Atlas、Bugoff,还有软三A品系上产生局部坏死斑,在玉米和苏丹草上为系统感染,但不侵染约翰逊草和大麦。初步认为该分离物中至少含有2个株系。 用TAC(0.1M Tris—0.05M柠檬酸)缓冲系统(pH 8.3)提取该分离物,再经氯仿澄清,然后配合低速离心(4000rpm)进行两次8%聚乙二醇(PEG6000或12000)浓缩。这样,部分纯化的样品在260nm O.D.值最大,230—240nm O.D.最小,其260/280:126±0.08;280/260:0.83±0.06。获得此抗原的血清效价:琼脂双扩散1/256,试管沉淀1/512,微量沉淀1/512。 毒源测试结果:与带毒种蔗,田间甘蔗、玉米、苏丹草病株组织有阳性反应,均可形成明显的沉淀带,而对照均为阴性反应。

The urghum (S.vulgare)rrd-stripe virus disease is of economic importancein North China,because it usually causes great loss of sorghum yields. Isolations were made with the samples from the redstripe diseased sorghumin North China.There are two isolates:one causes only mosaic symptom onsorghum,while the other causes mosaic,streak followed by red stripping andnecrosis.The latter one or entitled SRLV also causes mosaic on maize,millotand some other graminaceous plants,including some perennial grasses suchas important...

The urghum (S.vulgare)rrd-stripe virus disease is of economic importancein North China,because it usually causes great loss of sorghum yields. Isolations were made with the samples from the redstripe diseased sorghumin North China.There are two isolates:one causes only mosaic symptom onsorghum,while the other causes mosaic,streak followed by red stripping andnecrosis.The latter one or entitled SRLV also causes mosaic on maize,millotand some other graminaceous plants,including some perennial grasses suchas important overwintering hosts of the virus i.e.Arthraxon lanceolatus.Spo-diopogon sibiricus and Hemarthria compressa. These two isolates usually occur on sorghum plants either in mixed infec-tion or alone.In the present paper,an intensive study was made with SRLV.Which is transmitted in a non-persistent manner by aphids(i.e.Schizaphisgraminum,Myzus persicae etc.in spring;Rhopalosiphun maidis,R.padi ect.insummer),and also transmissible by sap inoculation.The seeds of Sorghumvulgare c.v.954066B carry 0.03% of the virus. The virions are filamentous flexuous particles about 750nm in length and13nm in width.Pinweel inclusions are found in the cytoplasm of diseasedsorghum leaves in ultrathin sections. The virus was purified by precipitation with PEG6000 and differentialcentrifugations.The virus yield was about 12mg/kg leaves of sorghum.TheA260/A280 ratio of virus preparations is 1.22.The titer of the as aga instthevirus was 1:64 by drop precipitation tests.The M.wt.of the protein subunit of the virus is determined to be 36,400 daltons.The thermal inacti-vation point is 54℃,dilution end point 10~(-3),longevity in vitro 3 days at20℃. The SRLV is serologically Closely related to SCMV and MDMV,causingnecrotic local lesions in the sorghum c.v.Atlas,and dwarf mosaic in maize,butis unable to infect Sorghum halepense and sugarcane.Therefore the identity ofthe SRLV isolate to MDMV-B can be assured.The other isolate which doesnot cause reddening but only mosic on sorghum leaves has been identified tobe MDMV-G,a virus usually causing damage to maize.

从华北高粱红条病叶中得到一种病毒分离物.此病毒侵染玉米、谷子及禾草产生花叶症状,在多年生寄主矛叶荩草(Arthraxon lanceolatus)、大油芒(Spodiopogon Sibiricus)、牛鞭草(HemarthriaCompressa)上越冬,在田间由麦二叉蚜(Schizaphis graminum)、粟缢管蚜(Rhopalosiphum Padi)、玉米蚜(R.maidis)、桃蚜(Myzus peisicae)等以非持久性方式传播,汁液摩擦可传毒。高粱品种954066B的种子带毒率在本实验中为0.03%。病毒粒体线条状,略弯曲;长度为750nm,直径13nm,A260/A280比值为1.22,衣壳亚基蛋白分子量约为36,400道尔顿.在高粱汁液中,钝化温度为54℃,稀释限点为10~(-3),体外存活期3天.此病毒与甘蔗花叶病毒(SCMV)及玉米矮花叶病毒(MDMV)均有血清反应关系;不侵染约翰逊草(Sorghum halepense)及甘蔗(Saccharum officinarum),结合其他特性确定华北高粱红条病毒病是由玉米矮花叶病毒B株系(MDMV-—B)所致.

 
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