積累毒性 的英文怎麼說

中文拼音 [lěixìng]
積累毒性 英文
accumulation toxicity
  • : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
  • : 累Ⅰ形容詞(疲勞) tired; fatigued; weary Ⅱ動詞1. (使疲勞; 使勞累) tire out; wear out 2. (操勞) work hard; toil
  • : Ⅰ名詞1 (對生物體有害的性質或物質; 毒物) poison; toxin 2 (毒品) drug; narcotics 3 (姓氏) a s...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • 積累 : 1. (逐漸聚集) accumulation; accumulate 2. [核子] build-up; 積累基金 accumulation fund
  • 毒性 : [藥理學] toxicity; virulence; poisonousness毒性測定 toxicity test
  1. In this experiment, seedlings of arabidopsis thaliana ( col ) were observed after being treated by verlicillium dahliae ( vd - toxin ), exogenous salicylic acid ( sa ), nitric oxide donor ( snp ) and nitric oxide synthase inhibitor ( nna ), then we investigated the changes of endogenous h2o2 content, the activity of the antioxidant enzymes catalase ( cat, ec : 1. 11. 1. 6 ) and ascorbate peroxidase ( apx, ec : 1. 11. 1. 11 ) and mrna levels of cat3 in different stress conditions, we also identified the localizations of h2o2 and no accumulated in the leaves of arabidopsis

    本實驗研究了棉花黃萎病菌?大麗輪枝菌素( vd - toxin )與擬南芥幼苗互作反應中外源sa 、 no供體snp 、 no合酶抑制劑nna等不同處理對擬南芥幼苗h _ 2o _ 2含量、 cat和apx活及cat基因mrna表達量的影響,並對no 、 h _ 2o _ 2的部位進行染色檢測。
  2. Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time

    隨后以這幾種重金屬作為實驗物,以鯽魚為實驗動物,應用環境生物技術、火焰原子吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急及其安全濃度評價、混合重金屬在鯽魚幼體組織內的和分佈、 cd對鯽魚鰓和肝臟中sod活的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等,全面和系統地研究了水環境中重金屬暴露對魚類的影響,初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層次的影響,為制定漁業生產上預防的管理措施提供科學依據,及時避免或減輕重金屬污染對水生生態系統造成的損害。
  3. Phytoalexins are low molecular weight chemicals that plants produce and accumulate in response to infection especially of fungal origin. sakuranetin is a kind of flavanone phytoalexin isolated from ultraviolet - irradiated rice leaves. recent research work on flavanone phytoalexins represented by sakuranetin is reviewed. interesting novel structures, stucture - activity relationships and synthetic methods are discussed

    植物抗素是植物受到外界病原微生物侵擾后所產生並的一類具有抗菌活的小分子物質,櫻花素是從水稻稻瘟病感染組織中分離鑒定的一種黃烷酮類植物抗素.對以櫻花素為代表的水稻抗素及其類似物的結構與活、黃烷酮類植物抗素合成方法的研究概況進行了綜述
  4. I ' ve been hoarding seconal like a proper junkie,

    我體內藥的不斷的
  5. Exploring the possible mechanisms is an important content of bioinorganic chemistry and ecotoxicology, which has signality in modifying contamination effect to animals. this thesis studies on the chemical speciation of mercury and selenium in dolphin livers, sub - chronic toxic effect of wistar rats of sodium selenite and mercuric chloride and investigates the antagonism mechanism from there aspects : 1. redistribution of mercury in the presence of selenium, 2

    本文以海豚肝臟為對象,研究其的高濃度汞硒化合物的化學形態和結構,並結合動物實驗的研究,從汞硒相互作用的總體生物學表現,汞硒在動物體內分佈變化和結合形態的變化以及汞硒化合物的結構等方面探討兩元素拮抗作用機理。
  6. Because there are a great quantity ' s heterotrophic bacteria in the breeding pool, which will have the repulsion action to the insufficient quantity ' s nitrifier and prevent the nitrification, the situation will bring the accumulating of nitrite which is the middle substance of nitrification in water, the long term accumulated nitrite can debase fish and shrimp ' s disease - resistant and decrease the growth and even die

    由於養殖池中存在大量的異養菌,受到異養細菌排斥,本身無足夠數量的硝化菌,硝化作用往往受阻,結果就會引起硝化作用的中間產物亞硝酸鹽在水體內的、亞硝酸鹽長期蓄會使魚蝦等抗病力降低、生長受阻、嚴重者中死亡。
  7. The shrimp fry are often unable to adjust to the changes in these levels when they are transferred into ponds. late evening or early morning is the best times to stock the ponds

    處理代謝過程中產生的硫化氫及亞硝酸密集飼養蝦池,在某段時間會的硫化氫及亞硝酸,特別是在植物浮游生物相繼死亡時。
  8. This finding may bring a hope to phytoremediate as - contaminated soils. the effects of as and ca on the growth of p. vittata l. and as uptake by p. vittata l. were studied under sand culture condition. the interaction of as and ca on concentration and distribution of metals including k, mg, mn, fe, zn and cu in it were also investigated

    通過砂培盆栽試驗,本論文從砷和鈣的作用對蜈蚣草生長和砷的影響及砷、鈣與其他必需金屬元素的關系等方面研究了蜈蚣草的營養特,從砷、鈣、磷的亞細胞定位探討了蜈蚣草對砷的解機理及鈣的作用機制。
  9. These results suggest that al accumulation on cell wall is very closely related to pme activity on the root tips, and pme activity has an important role in al toxic sensitivity

    表明細胞壁上鋁與pme活變化有密切相關, pme活在鋁敏感中可能起著重要作用。
  10. How usana supplements work due to the unbalanced diet, environment pollutions, chemical additives of the food, the life and work pressure, it makes our bodies having much unknown poisons. with the time past, it kill the healthy cells and organs inside our bodies and make us have chronic diseases of circulatory, metabolism, immune system

    由於長期的飲食不均衡環境污染有害健康的食物化學添加劑生活及工作壓力等,讓我們現代人的身體不知不覺了許多素,這些素隨著歲月的增長,正一點一滴的破壞著我們體內的健康細胞及所有的器官組織,使得我們的身體逐漸出現了許多代謝循環免疫系統的慢疾病。
  11. This paper briefly reviews the history and progress of trace metal marine ecotoxicology over the past few decades. three main areas of metal ecotoxicology are transport in the environment, accumulation and toxicity, as well as the risk assessment. we have seen tremendous progresses in these areas as a result of interdisciplinary efforts by biologists, chemists, engineers, governmental regulators and managers. i then discuss the future perspectives of metal ecotoxicology. it is expected that this field will receive increasing attention in china. certainly i hope that xiamen can become a center for metal ecotoxicology and biogeochemistry research

    簡要回顧了痕量金屬的海洋生態理學研究的歷史及過去幾十年中所獲得的進展.金屬生態理學研究主要包括以下3個方向:環境中的轉移,及危險評估.在來自於多種學科的專家,包括生物學家,化學學家,工程師和政府監督管理人員等的共同努力下,這3個方向的研究都獲得了長足的發展.同時對金屬生態理學的未來進行了展望.可以預見的是,這門學科將在中國受到越來越多的關注.我更希望看到廈門能夠成為未來金屬海洋理學發展的中心
  12. 2 ) effect on contents of mda mda is the product that membrane lipid peroxide and the contents of mda in plants can reflect the degree of the damage that the plants are encountered to some extent. the measurement results show that the accumulation of mda in transgenic tomato were lower than that of the control, which suggested that the cell membrane system was damaged under the low - temperature stresses, meanwhile the transformants suffered the little damage than the control plants

    2 )丙二醛含量:丙二醛是膜脂過氧化的產物,它在植物體內含量的高低能夠在一定程度上反映植物受傷害的程度,實驗結果表明轉基因植株體內丙二醛的含量明顯低於對照,說明轉基因番茄在低溫脅迫下有物質的少,膜脂過氧化程度輕,耐寒強。
  13. Objective : to study the effects of diazepam to the development of the larvae of chrysomya megacephala in different temperature and accumulate the biological data on necrophagous flies in shijiazhuang area, and to help providing scientific data for deducing the postmortem interval ( pmi ) in criminal investigation

    目的:了解不同溫度下安定對大頭金蠅生長發育的影響,石家莊地區屍食蠅類在具屍體上的發育生物學資料,為刑事調查推斷死後間隔時間( postmorteminterval , pmi )提供科學依據。
  14. Many of these treatments are messy, time consuming, have cumulative toxicities, and are not very effective, according to krueger, m. d., principal investigator for the study

    這些治療方法十分瑣碎,耗費較多時間,有的副作用,並且對疾病沒有明顯的效果。
  15. Among the joint dose experiments, the antagonism of selenium and mercury is the most evident in the rats with 2 : 1 mol - ratio of selenium and mercury but the least in the rats with 1 : 2 mol - ratio of selenium and mercury. the results also showed that there are two essential conditions for good antagonistic effect of selenium and mercury and 1 : 1 mol - ratio relationship of selenium and mercury in the most organs ( liver, gland, spleen, stomach and lungs ). one is that the content of mercury is more than 100nmol / g, and another is the 2 : 1 dose ratio of selenium and mercury

    總體而言,雌大鼠對硒、汞的拮抗作用與雄大鼠相比時更為敏感;相同別的大鼠體內,聯合高劑量時硒、汞的拮抗作用最明顯,聯合中劑量時,拮抗效果相對不明顯,而聯合低劑量時,拮抗效果最差;聯合摩爾劑量比為2 : 1 ( se : hg )和汞的濃度大於100nmol g ,是大鼠體內大部分組織器官(肝臟、胸腺、脾、胃、肺)中四川大學碩士學位論文硒、汞等摩爾比的兩個必要條件,同時也是硒、汞的相互作用產生最佳桔抗效果的兩個重要前提。
  16. The safe concentrations of zn, cd and cr to crucian were far exceeded the standard. the short - term accumulation and distribution in young crucian tissue of mixed secure concentrations of heavy metals cu, zn, cr and cd pollution was studied. the results showed that associated interaction of the four heavy metals was synergistic effect of accumulated toxic

    研究了安全濃度的混合重金屬cu 、 zn 、 cr 、 cd污染在鯽魚幼體組織中短期的和分佈,實驗結果表明: cu 、 zn 、 cd和cr四種重金屬之間的聯合作用為劇增的快同作用。
  17. The dual effects of no were validated in this research. no was either oxidative or antioxidative which depends on the circumstances. generally no took part in the antioxidant cellular system by elevating the activities of cat and apx. while in the vd - toxin infected arabidopsis, no supressed the activity of cat and may participate in redox signaling during the activation of defense responses which follows the pathognen attack

    本實驗結果進一步驗證了no作用的雙重,即在通常情況下, no表現出的是抗氧化,而當素與擬南芥互作時, no通過抑制cat活,促進h _ 2o _ 2的,傳遞抗病信號,表現其氧化的一面。
  18. [ note : in neurodegeneration the main aggregates tend to form in other parts of the cell than the lysosome, but there is good evidence that this is a compensatory measure when neurons ' lysosomes stop working properly as a result of the more modest accumulation of lysosomal toxins, so if we fix the lysosome then the non - lysosomal aggregates should disappear naturally

    [附註:在神經退化中,主要的堆物往往在細胞的其他部分形成、而不是在溶酶體形成,但有很好的證據表明,這是一種補償措施:當神經原的溶酶體因溶酶體到一定程度就停止工作,所以,如果我們修理了溶酶體,那麼非溶酶體的堆物就會自然消失。
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