弱株 的英文怎麼說
中文拼音 [ruòzhū]
弱株
英文
weak plant-
Newcastle disease virus ( ndv ) strain 695, a thermostable nature avirulent strain, were replicated in embryonated chicken eggsand its rna was extracted from allantoic fluid. referred to the reported sequence of f gene, a pair of primers were designed and synthesized. f gene of ndv b95 strain was amplified by rt - pcr, the pcr products were checked by agrose gel electrophoresis and purified by agrose gel fracion method
利用從國外引進的新城疫熱穩定性天然弱毒b _ （ 95 ）株接種spf雞胚繁殖病毒，經處理后提取病毒的基因組rna ，參考國內外發表的ndv融合蛋白基因序列，設計一對特異性引物，經反轉錄聚合酶鏈式反應（ rt - pcr ）擴增出約1700bp大小的特異性片段，將此片段回收純化后，利用t - a克隆技術將其克隆到pgem - t - easy克隆載體中，再轉化大腸桿菌jm109感受態細胞，轉化后經分子量比較、 pcr鑒定和酶切分析篩選陽性克隆。Finally, avirulent and virulent plant, bacteria of pseudomonas solanaceanim was investigated by chromatography. the result showed that there are two peaks when both bacteria was eluted, but their peak area ratio was quite different. when virulent bacteria was subject to chromatography after vibration by ultrasonic wave, both chromatographial behaviors of both avirulent and virulent pseudomonas solanaceanim were same basically, which showed a equilibrial peak and a eluting one
最後，表徵了植物病原菌? ?青枯菌的強、弱致病菌株，結果顯示強、弱菌都有兩個洗脫峰，但峰面積比例有明顯的差異，強弱致病菌株經振蕩后，其色譜行為基本相似，表現為一個穿透峰和一個洗脫峰。Electron microscopy showed that virulent pseudomonas solanaceanim grown in gathering form and avirulent pseudomonas solanaceanim did in free form. so that two different monomers were estimated to comprise pseudomonas solanaceanim the research above will expand application of traditional hplc and deepen its potential in bacteria studying
結合電鏡觀察，證明強致病菌株主要是以聚集形式生長，而弱致病菌株則以游離分散的形式生長，並可以推測青枯菌可能存在兩種不同的單體。Unlilie other cells that also use the salvage pathway for purine biosynhesis, prolfferating b and t cells are solely dependent on the de novo pathway for the generation of wsine. by blocking impdh, b and t cells cannot synthesise the necessary levels of ana and dna to molm a proliferathe response to ags and ndogens
根據對balb c和c57bl 6小鼠互為供、受者進行移植的結果表明，在排斥發生時間上不同的鼠株移植組合存在差異b 0刀勻， balb兒小鼠的同種應答強度較c57bl 6小鼠為弱。Based on the field investigations and laboratory examinations, a study of the population of the epiphytic dolichomitriopsis diversformis ( mitt. ) nog. in fanjing mountain reveals that its habitats are different among different host trees, but that there lies the common habitat characteristics of not more than 2m height from the bottoms of host trees trunks, less light, high relative humidity, slow wind speed, slow evaporation speed and long time of remaining humid in middle - lower tree bark ; that it is one dioecious moss species, the morphology is remarkably different between its perichaetium and perigonium, the number of its perichaetia is much more than that of its perigonia, its perigonium is difficult to find out, its sporophyte is upright, its seta is long and thin, its capsule is regular long oval and its calyptra is cucullate
摘要通過野外調查和室內觀測對貴州省梵凈山樹附生尖葉擬船葉蘚種群的研究表明，其生境因其所附生的樹種不同而有所不同，但具有共同特點：附生在樹干下部距地面2m高的范圍之內，光照弱、濕度大、風速小、蒸發量小、中下部樹皮保持濕潤的持續時間長；其為雌雄異株蘚種，雌、雄器苞形態差異明顯，雌器苞數量多，雄器苞數量少並且難于發現，孢子體直立，蒴柄細長，孢蒴規則長卵形，蒴帽兜形。Plant protection in greenhouse from foliar blight by the endophyte was clearly in the early stage after inoculation with rhi. solani ciat 6780. but the resistance became weak as time went on
旗草體內抗病試驗表明，內生菌感染的植株對葉枯病具有抗性，但這種抗性隨著病原菌（ rhizoctoniasolani ）的擴展而減弱。Pp38 was found to have immunosuppressive effect on chicken in vivo and the copy number of 132 - bpr was found to be associated with the attenuation of the virus in vitro, meq was believed to be a potential oncogene, based on its leucine zipper structure and proline - rich domain characteristic of jun / fos family of transcription factors, and may plays an important role in the pathogenicity or oncogenicity of mdv
其中， meq與132 - bpr兩個基因是mdv - 1所特有，已證實132 - bpr的拷貝數與毒株的體外致弱程度有關， pp38則被證實可抑制機體的免疫應答。 meq基因由於具有與致瘤基因jun fos家族類似的分子結構，因此，我們有理由認為meq基因在mdv致病、致瘤中可能發揮重要的作用。Carrot tissue culture and plant regeneration factors including explants, medium and culture condition are combined together to study the most efficient protocol of carrot tissue culture and plant regeneration thereof. the most suitable explant is fresh hypocotyls segment and precultured hypocotyls derived from 7 - 10 day old aseptic plantlets generating in dark or in dim light, the best recipe for cullus induction and subculture is b5c ( 85 with 0. 5mg / l 6ba and 0. 5mg / l 2, 4 - d ), the ideal recipe for plant regeneration is 65 or ms free of hormone. a phytotron with a 16 / 8 h day / night cycle, at 25 is feasible for plant regeneration, and occasional exposure to sun light dramatically stimulates plant growth
建立了高效的胡蘿卜組織培養及再生體系以適于生產飲料的胡蘿卜「新黑田五寸人參」為材料，研究不同外植體、不同培養基，不同培養條件對胡蘿卜愈傷誘導及再生的影響，建立一套高效的胡蘿卜組織培養再生體系：最適于誘導愈傷的外植體是弱光或黑暗下發芽7 - 10d無菌苗下胚軸，最適合的愈傷誘導培養基和繼代培養是b _ 5c （ b _ 5 + 0 . 5mg l6ba + 0 . 5mg l2 ， 4 - d ） ，最適于植株再生的培養基為不添加任何激素的b _ 5或ms ，組織培養條件為25 、光照周期為16hr 8hr 。Precocity ; endless growth ; growing trend is medium, and is able to bear or endure low temperature, it is strong to be able to seat fruit under low light level power, the fruit expands fast, the fruit is high and round, the pink, no green shoulder epidermis is smooth and bright, in good order, the single fruit weighs about 300g, thick flesh ; small ventricle, bear or endure storage and transportation, taste good, commodity nature is good, high resisted leaf mildew, droop, viral disease
特徵特性：早熟植株無限生長，長勢中等，耐低溫，耐弱光下座果力強，果實膨大快，果實高圓型，粉紅色，無綠肩表皮光滑亮麗，整齊度好，單果重300克左右，果肉特厚心室小，耐貯運粉果精品，味好品質佳，商品性好，高抗葉霉病、枯萎病、病毒病。Sds - page results showed that there was a clear target protein band in mut + recombinant supernatant after 48 hours of culturing, while a faint band only in muts recombinant after 72 hours. western - blotting result showed that there was no remarkable difference of yield between mut + and muts recombinants after 6 days induced. anti - virus activity tests revealed that culture supernatants of mut + and muts recombinants could inhibit tmv infection with high efficiency in the same concentration and there was no significant difference between them
結果表明，誘導培養48小時后， mut ~ +重組菌株表達產物在sds - page膠上顯現出清晰的目的蛋白帶，而mut ~ s重組菌株培養72小時才能顯示微弱的目的帶； western - blotting雜交信號強度表明，同樣培養6天的mut ~ +和mut ~ s重組菌株表達產物在表達量上沒有明顯差別。Summer pruning devitalises the tree on an extent and consequently reduces excessive vigour.
夏剪能在一定程度上減弱植株的生命力，從而削弱過分的生長勢。Culture of the attenuated a66 strain of duck hepatitis virus in chicken embryo fibroblast
66弱毒株在雞胚成纖維細胞上的培養The vaccine was developed by passaging eiav strain liaoning ( eiav l ) in donkeys in vivo, obtaining a donkey - adapted virulent equine infectious anemia virus ( eiav da ) and then passaging it in donkey leukocyte cultures for more than 120 times in vitro
該毒株是將eiavl株（ eiavl ）通過驢體傳代，使其毒力明顯增強，然後在驢白細胞培養物上連續傳代致弱獲得的。It has been reported that the eiav s2 is not essential and does not appear to affect virus infection and replication in vitro. thus, we introduced a his - tag into the s2 gene of an eiav infectious molecular clone recombinant plasmid ( pok8266 ) by using soe pcr method and obtained a new recombinant plasmid with his - tag, designated as eiav - pok8. 2 - his
本研究應用已構建好的eiav驢白細胞弱毒疫苗株的感染性分子克隆載體（ pok8266 ）為模板，通過soepcr方法在感染性分子克隆載體的s2基因獨特區內引入突變點，形成含有酶切位點（ nspv ）的突變體（ p1p4 ） 。The result showed vp2 hydrophilic region and antigen variant and virulence of ibdv had very affinity
該結果表明， vp2與ibdv毒株的毒力強弱和抗原變異有密切的關系。Based on the host reaction and cluster analysis of disease severity, the 57 isolates of venturia inaequalis could be divided into three categories : strong ( pathotype ), intermediate ( pathotype ) and weak pathogenicity ( pathotype ) respectively
根據寄主對病菌的反應類型並結合病害嚴重度的聚類分析結果，可將57株蘋果黑星病菌菌株劃分為3個類群：強致病力型、中等致病力型、弱致病力型。It was interested that there was an extra six nucleosides insertion between 1647 - 1652nt ( according to the genomic sequence of la sota strain ), and the sequence were cccccc in f48e9 strain, and tcccac in zj1 strain. in order to test if insertion of this six nucleosides is related with the virulence of nd, two primers were designed to amplify the same fragment of another ten ndv strains. the result of sequence comparison of 16 strains showed that the six nucleoside was absent in lentogenic strain. this suggested that the six nucleosides insertion might have relationship with the ndv virulence. compared with all known sequence of ndv. there was a special sequence ( 5 ' tctctctcctctctcctcc3 " ) in the genomic cdna of ndv f48e9 strain
通過rt - pcr方法擴增獲得了另外10個背景清楚毒株的np - p基因間隔區片段，將這些序列與f48e9 、 lasota 、 clone30 、 b1 、 zj1和v4的相應序列進行了比較，結果在參比的16個ndv毒株中在該區段中除了有多個點突變外，個別毒株有堿基插入和缺失，所有以lasota株為代表的弱毒株均無6堿基的插入，而以f48e9株為首的強毒株均有此6堿基的插入，但有一個中等毒力的毒株dp沒有6堿基的插入，不過它的基因序列和lasota的幾乎相同，對于所克隆到的基因的代表性還有待確定。Their destiny, like that of the “ attenuated ” viral strains grown in eggs, is to form part of a vaccine
這些瘧蚊的作用便是用來作為疫苗的一部分，就像寄生於雞蛋裏面且毒素減弱的病毒株。It may serve, let us hope, to symbolise some sweet moral blossom, that may be found along the track, or relieve the darkening close of a tale of human frailty and sorrow
但願這株玫瑰花，在敘述這篇人性脆弱和人生悲哀的故事的進程中，能夠象徵道德之花的馥郁，而在讀完故事陰晦凄慘的結局時，仍可以得到一些慰藉。Nine week old plant, showing pale new leaves. s % in young leaves of ten week old plant was 0. 19 ; healthy 0. 28
新葉均一黃化，看似非常脆弱。九周的老植株呈現暗淡的新葉，十周的老植株其幼葉硫的百分含量為0 . 19 。正常的為0 . 28 。分享友人