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Title： Cloning and sequencing of homologous panallergen genes in pollen of short ragweed (Ambrosia artemisiifolia L. 关键词：基因克隆;多序列比较;泛过敏原;豚草
The impacts of ragweed on soil animals in reproductive period exceeded that in vegetative period,that of A. artemisiifolia exceeded that of A. trifida, that in pure ragweed community exceeded that in the community with ragweed and other plants. 豚草对土壤动物的影响 ,生殖生长期大于营养生长期 ,普通豚草大于三裂叶豚草 ,豚草纯群落大于豚草与其它植物混生群落。
Abstract The ragweed, Ambrosia artemisiifolia L., is one of the most hazardous weed species distributed worldwide and causing serious damages to agricultural production and human health. 摘要豚草是世界性重要有害杂草之一，对农业生产和人类健康均造成严重危害。
One ragweed plant can release as many as one billion grains of pollen. 一株豕草可以放出十亿颗花粉?
Limit your outside activities if you are bothered by ragweed and mold. 当你受豚草和霉菌困扰时，尽量限制户外活动。
Patients who demonstrated moderate to seere rhinitis symptoms upon exposure to ragweed were admitted to the study. 暴露于豕草而激发严重鼻炎症状并证实得到缓解的患者加入该研究。
TOLAMBA is designed to target the underlying cause of seasonal allergic rhinitis caused by ragweed. TOLAMBA是针对由豕草引起的季节性变应性鼻炎的根本原因设计的。
Among them, Ambrosia artemisiifolia and Lolium temulentum are two species of harmful quarantine weeds in China. 其中的2个种,即豚草和毒麦,为我国检疫性杂草。
The relation between secondary metabolites of Ambrosia artemisiifolia and soil microorganism was studied. 本文对豚草的次生代谢产物与土壤微生物之间的关系进行了研究。
The two grubby small boys with two-coloured hair who were digging among the ragweed in front yard. 两个肮里肮脏的长着亚麻色头发的小男孩正在前院的杂草丛里挖什么东西.
Seeds of crop treated with the Ambrosia artemisiifolia juice at 0.5%, l%, 2%, 5%, 100% were compared with those treated with water. 摘要用豚草原汁配制成0.;5%25，1%25，2%25，5%25，100%255个浓度的溶液，以清水对照，对玉米种子进行培养，结果表明：浓度5%25、2%25豚草溶液对玉米种子的萌发有促进作用，且最佳浓度为5%25；
Subjects receied six doses of TOLAMBA oer six weeks prior to the start of the 2006 ragweed season. 受试者在2006年豕草季节开始之前超过6周时接受6个剂量的TOLAMBA治疗。
An improved procedure of bronchialprovocation test with ragweed pollen ex-tract is described. 本文叙述了支气管激发试验的改良方法,用豕草花粉提取液作为过敏原。
He points to acres of shriveled, neglected grapevines, choked by ragweed, and an empty field where he would like to build an office building if he only had the cash. 他指向好几亩乾枯、缺乏照料、都快被野草盖过的葡萄藤，再指向一片空地，说如果有钱的话，他想在那里盖一间办公室。
Atopy was defined as a positive skin-prick test to mites, cat, Alternaria, Cladosporium, grass, birch, Parietaria, olive, or ragweed. 特应性定义为对螨类、链格孢属、分子孢子菌属、草、桦木、墙草属、橄榄或豚草属皮肤划痕实验阳性。
There were Iva xanthifolia Nutt,Ambrosia artemisiifolia L.,Ambrosia trifida L.of invasive species and Cosmos bipinnata Cav of noninvasive species from temperate zone. 所选择的植物包括:取种于温带的入侵植物假苍耳(Iva xanthifolia Nutt)、豚草(Ambrosia artemisiifolia L.;) 、三裂叶豚草(Ambrosia trifida L
The first year\'s weeds on the Michigan plot are annual flowering plants, followed by tougher perennials like crabgrass and ragweed. 然后你走开，几十年监测着田地。第一个夏天，花园里的种子占据了田地。
Allergic sensitivity means an allergy to a specific allergen like ragweed; sensitivity refers to a nonspecific irritant. 过敏性敏感意指对猪草等特定过敏原产生过度反应的过敏；敏感则是对非特殊刺激物产生反应。
Ragweed pollen, the allergenic one, reached its maximum in the atmosphere in August and showed a peak of diurnal periodicity at 7:00-9:00 am. 引起过敏的猪草属花粉，在八月达高峰，且日高峰出现于早晨七点至九点。
The first year's weeds on the Michigan plot are annual flowering plants, followed by tougher perennials like crabgrass and ragweed. 第一年到访的杂草是每年开花的草本植物，接着被更坚韧的多年生植物像沙果草和豚草取代，木本的灌木从会荫蔽抑制开花植物。