host range 中文意思是什麼

host range 解釋
寄侄圍
  • host : n 〈常 H 〉【宗教】聖餅，聖餐用麵包。n 1 主人 （opp guest）。2 （廣播、電視的）節目主持人。3 旅館...
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  1. Most species occur only on a single host genus, but there were a few species, such as l. pinastri, which had a wide range of host and its ascocarps can appear on the needles of 16 kinds of haploxylon and diploxylon pines

    多數種僅知在單寄主屬上發生，但也有部分種能在多寄主上產果，如松針散斑殼（ l pinastri ）可危害16種單、雙維管束松樹。
  2. We also have a large expatriate community that calls hong kong home, a host of consulates and foreign missions, thousands of multinational companies and business people, a wide range of international organisations and schools, and a substantial concentration of overseas news and media companies

    我們也有一大以香港為家的外籍人士眾多國家的領事館和代表處數以千計的跨國企業，以及海外傳媒機構外商團體國際學校等等。
  3. Genetic diversity and phylogeny of 55 slow - growing rhizobia isolated from peanut ( arachis hypogaea ) in china were determined by analysis of host - plant range, phynotype, 16s rrna rflp, 16s rrna sequence, 16s - 23s igs rflp, rapd, rep - pcr, dna - dna hybridization homology. at the same time, the competitive nodulation capacity of rhizobia, effect of host plants and soil ph on the rhizobia were determined for screening and improvement of high effective rhizobium inoculant

    本研究採用宿主范圍試驗、表型性狀測定、 16srrna - rflp 、 16srrna序列分析、 16s - 23srdnaigsrflp分析、 rapd分析、 rep - pcr分析和dna - dna同源性分析等技術系統研究了從我國不同地域分離的55株花生根瘤菌的遺傳多樣性及其在根瘤菌系統發育中的地位和相互關系。
  4. Results of host - plant range test shown that all slow - growing isolates could effectively form nodules on arachis hypogaea and phaseolns vulgaris. they could not nodulate on visia sativa, and part of them could nodulate glycin soja and glycin max

    宿主范圍研究表明供試花根瘤菌均能在花生上進行有效的結瘤並固氮；部分菌株能夠在野大豆和栽培大豆矮腳早上結瘤；所有供試菌株均不能在野豌豆上結瘤，但均能能在菜豆上結瘤且單株瘤數較多。
  5. It supports a wide range of flash chips ; it executes on the host machine usually an i386 machine - we will refer to an i386 machine as the

    它支持為數眾多的閃存晶元；它在主機機器（通常是i386機器本文中我們把一臺i386機器稱為
  6. However, there is not an apprarent connection between the clusters and the natural geographic range of host species

    但是，研究供試菌株得到的分群與較細的宿主種類劃分和宿主的地理分佈並無密切相關。
  7. ( am ) fungi exhibit low host specificity and form mutualistic associations with a wide range of host plant species over a wide range of environmental conditions. some characteristics of am fungi, including hyphal growth, distribution and metabolic activity, are closely related to mycorrhizal efficiency and to ecological function of am fungi, and may be influenced by host plant and soil conditions

    叢枝菌根共生體由宿主植物和真菌共同組成，菌根真菌的生長、代謝活性、菌絲分佈以及生態適應性等特徵不但與菌根效應、菌根真菌的生態功能密切相關，而且受到宿主植物和土壤條件的影響。
  8. By calculating parameters including the link length, the azimuth angle, the elevation, the optical power that the inter - satellite optical cdma communication system will receive, the variation range of the azimuth angle and the elevation from the optical antenna of atp are understood well. by analyzing the factors to impact bit - error - rate ( ber ) from the received power, multi - user disturbing, background noise, wavelength, bit rate etc, measures to guarantee high performances of the system are obtained, especially those for smoothing the fluctuation of the received optical power from host platform vibration

    分析研究了衛星光cdma通信系統中衛星仰角、方位角和距離，給出了探測器能夠接收到的光功率以及atp子系統捕獲及跟瞄的范圍;對衛星光cdma通信系統性能模型和基於衛星振動系統性能模型的研究，分析了多用戶干擾、接收光功率、背景光噪聲、振動偏差以及碼速率對系統誤碼率的影響，給出了相應的改進措施。
  9. Support will be sought from a wide range of groups including industry and sports associations for various projects designed to maximize tokyo s bid to host the games

    將向廣泛的團體包括企業體育社團尋求支持，為各種項目的設計提供贊助。使東京擁有最大的可能性成為奧運會主辦城市。
  10. In this paper, a high integrated and intelligent digital dsp - spm system is developed based on the nspm6800 spm manufactured by the beijing zhongke mechanical & electrical equipment co. at present, the pc of spm system is burdened with not only sending and receiving data, but also disposing of image, which hinders the enhancement of speed of the system. in addition, as the function of spm is expanding, including tappingmode afm, efm, mfm, scm, etc, one hand, it amplifies the range of the application of spm, on the other hand it also means that the task of autocontrol and data transfer heavier. the advantages offered by the dsp compared to analog systems include considerable flexibility in the choice of the signal processing algorithm and greater ease in managing control parameters by the host computer, which are very important for the improvement of spm

    本課題以北京市中科機電設備公司的nspm - 6800型掃描探針顯微鏡為基礎，重新設計了以dsp為控制核心的控制系統，主要解決原系統存在的以下問題： （ 1 ） pc機既要實時控制數據的採集與發送，又要進行圖像的后處理，整個系統的實時性難以達到要求； （ 2 ）隨著spm功能的擴展，一方面包括輕敲式原子力顯微鏡、電場力、磁場力、掃描容場顯微鏡等技術在內的spm技術擴展了儀器的測試范圍和功能，另一方面也意味著自動控制量的增加和數據處理量的增加； （ 3 ） 16位a d 、 d a都採用的是購買的板卡，也通過isa槽插在pc機內，成本高，不利於擴展； （ 4 ）另外，數字板通過isa槽插在pc機內，易受于擾，而且給安裝帶來不便。
  11. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  12. Abstract : this review briefly introduced the progress and trends of chestnut blight research, including the occurrence and damage of chestnut blight, symptom, pathogen and its hypovirulence, host range, disease cycle, and control, etc

    文摘:全面綜述了栗疫病的研究進展，包括栗疫病的發生和為害性、癥狀、病原菌及其弱毒力、寄主植物、病害循環、發病條件和防治等方面所取得的成就和發展趨勢，並就某些問題提出作者的觀點。
  13. Conclusion temperature is the biggest climate factor for the effect on the citellophilus tesquorum sungaris, its temperature range of survival has no obviously differences with other insects under the condition free of host

    結論溫度是對方形黃鼠蚤松江亞種生存影響最大的氣候因子，游離狀態下其生存溫區與其他昆蟲無明顯區別。
  14. Studies on descending flow of sap and the host range of producing - fungus of plums

    李樹流膠病及其病原菌寄主范圍研究
  15. On our conjecture, gene 3a, a highly conserved sequence, may be the determinant of the virulence of fmdv. changes in 3a have been associated with altered host range. a deletion in 3a has been associated with bovine attenuation of fmdv

    我們根據已有資料推測， 3a基因可能是口蹄疫病毒的毒力決定簇，它具有高度保守性，其變異和部分缺失對病毒在牛體內的致弱和宿主嗜性發生改變起重要作用。
  16. The initial event in the life cycle of a virus is its interaction with receptors present on the surface of a susceptible host cell. the term " virus receptor " here is used to mean a host surface component ( usually proteins ) that participates in virus binding, facilitates viral infection, and also one determinant of virus host range and tissue tropism

    其吸附，入侵肝細胞，是感染肝細胞並引起病變的第一步，病毒對細胞的感染常以病毒分子吸附於宿主細胞表面為先導，即病毒的囊膜蛋白（或無包膜病毒的衣殼蛋白）與細胞表面相應的病毒受體分子結合。
  17. The hemaglutinin ( ha ) of aiv plays the key role in determing the pathogenicity, cell receptor binding property and host range of the virus. the homology of the ha sequences reported and registered in genbank of different strains of h _ ( 5 ). h _ ( 9 ) subtype was respectively analyzed and compared with each other. the conservative domin of ha seqence of h _ ( 5 ), h _ ( 9 ) subtype was selected for pcr amplification. two sets of specific primers were designed

    本研究根據genbank中查出的禽流感病毒h _ 5亞型，禽流感病毒h _ 9亞型的ha片段基因組序列，利用dnasis軟體分別對aiv的h _ 5 、 h _ 9亞型ha基因區域進行同源性比較，設計篩選出兩對聯合pcr反應的特異性引物，其中一對是h _ 9亞型通用引物，擴增出ha片段695bp ，另一對引物為h _ 5亞型的通用引物，擴增出的ha區域部分目的片段約為448bp 。
  18. The chief aim of the present study was to primarily explore the early symbiotic interaction between m. huakuii and a. sinicus, using gfp and its mutants as reporter genes. the feasibility of broad - host - range plasmid ptr102 as a stable transfer vector in molecular biology of m huakuii was analyzed

    採用發光酶發光活性和-葡萄糖苷酶組織染色法比較研究了攜帶報告基因luxab和gusa表達單元的ptr102標記質粒phn106和phn109在華癸中生根瘤菌7653r中的穩定性。
  19. A review on maize dwarf mosaic disease is presented, including its symptom, distribution, damage, host range, viral strain, viral transmission and control method. future directions for the research of maize dwarf mosaic disease are also recommended

    介紹了玉米矮花葉病的癥狀、分佈、危害、寄主范圍、病毒株系、病毒傳播及防治方法等方面的研究進展。
  20. A broad - host - range promoter - probe vector phn1006 was further constructed by transferring promoter - probe unit from phn1005 into ptr102

    5 .發現一個發較強綠色熒光的大腸桿菌突變株，提取質粒命名為phn122 。
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