生物性積累 的英文怎麼說
中文拼音 [shēngwùxìngjīlěi]
生物性積累
英文
bioaccumulation- 生 : Ⅰ動詞1 (生育; 生殖) give birth to; bear 2 (出生) be born 3 (生長) grow 4 (生存; 活) live;...
- 物 : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 積 : 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 : 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
- 生物 : living things; living beings; organisms; bios (pl bioi bioses); biont; thing; life生物材料 biol...
- 積累 : 1. (逐漸聚集) accumulation; accumulate 2. [核子] build-up; 積累基金 accumulation fund
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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毒物,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對鯽魚的急性毒性及其安全濃度評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 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毒性影響,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性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。This paper introduced the status and development of basic research on phytochemistry and natural product chemistry in the fields of searching bioactive components, biosynthesis and molecular regulation of plant secondary metabolism substance, environment influence on the synthesis and accumulation of plant secondary metabolism substance, the relationship of endophyte and plant secondary metabolism substance
摘要本文從生物活性成分的篩選與分離、植物次生代謝產物生物合成及其分子調控、環境因子對植物次生代謝產物合成和積累的影響、植物體內生菌與植物次生代謝產物的關系等方面介紹了我國資源植物化學與天然產物化學領域基礎研究的現狀與發展。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
植物抗毒素是植物受到外界病原微生物侵擾后所產生並積累的一類具有抗菌活性的小分子物質,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毒素.對以櫻花素為代表的水稻抗毒素及其類似物的結構與活性、黃烷酮類植物抗毒素合成方法的研究概況進行了綜述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,研究其積累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毒性拮抗作用機理。Thirty - one crystals of polyoxometalates ( 1d, 2d, 3d ) were prepared by means of middle hydrothermal technique, molecular design and self - assembly, and characterized structurally by single crystal x - ray diffraction. the thermal stability, activity of catalysis and magnetism of some compounds were systematically studied. the continuous appearance of p - v - o, p - mo - o, v - mo - o, v - o system with novel structure enrich polyoxometalate chemistry, the reaction characterization and the synthesis law of molybdates, tungstates and vanadates under hydrothermal conditions were explored
由於p - v - o 、 p - mo - o 、 v - mo - o 、 v - o體系新結構不斷出現,豐富了多金屬氧酸鹽化學,探討水熱條件下釩、鉬、鎢物種的反應特性和生成規律,研究原料的選擇、配比、加料順序、濃度、酸度、反應溫度、反應時間等因素對產物的生成及結構的影響,為新的催化劑、導電材料、磁性材料的研製與開發積累經驗。Bioaccumulation testing method for aquatic organism
水生生物積累性試驗方法Specification on evaluation methods of hazards of liquid chemicals transported in bulk by shipping - bioaccumulation testing method for aquatic organism
船舶散裝運輸液體化學品危害性評價規范水生生物積累性試驗方法Two soils which collected from main peanut cultivated areas in guangdong province were utilized to investigate the effects of b or / and mo application on the growth, development and yield of peanut by pot culture experiments
摘要選用廣東省花生主產區的2種代表性土壤赤紅壤和磚紅壤,採用盆栽試驗,探討施用硼、鉬對花生生長發育和乾物質積累的影響。Enrich the language backlog, is the good tradition that our country in the past learn the language. but found a nation hereafter, we abandoned gradually traditional with the reads for main experience type teaching, on behalf it with the knowledge type teaching of the analyze type, resulted in the student the language backlog short of, the language reads is lowly with the writing skill, the language teaching is high to consume low effect etc. many problems. this text enriches the student the importance of the language backlog in to the ancient times of our country, modern, contemporary language teaching proceed a series of review anti thought after, at to the student recite from memory, read the language backlog circumstance that extracurricular book wait peacetime in a specific way launch inquisition research after, profoundly felt in the high school language teaching
豐富語言積累,是我國歷代學語文的優良傳統。但建國以後,我們逐步拋棄了傳統的以誦讀為主的經驗型教學,代之以分析式的知識型教學,造成了學生語言積累匱乏,語文的閱讀和寫作能力低下,語文教學高耗低效等諸多的問題。本文在對我國古代、現代、當代語文教學進行一系列的回顧反思之後,在對學生背誦、閱讀課外讀物等平時的語言積累情況具體展開調查研究之後,深切感到在中學語文教學中豐富學生語言積累的重要性。The system could move forwards at the speed of 1 m / a or the patches shifted their sites each other, which led to the clone population and maintained its stable state in even large area
同時,林緣擴散種群具有密度大、生產力高等特徵,但其生物量積累和自然稀疏過程與有性植物種群具有相同的規律。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,在某段時間會累積至毒的硫化氫及亞硝酸,特別是在植物性浮游生物相繼死亡時。A survey of literature shows that little study has been done on uptake of pollutants by plants from the polygonaceae, and that the reports about their physiological and biochemical characteristics under heavy metal stress were sporadically seen. a batch of sand culture and soil culture experiments were carried out to investigate heavy metal and radiocesium uptak e and accumulation by rumex acetosa linn, polygonum microcephalum d. don, and rumex hastatus d. don widely distributed on copper mining areas, and their physiological and biochemical characteristics under cu zn stress, as well their potentials in application to phytoremediation
本論文以廣泛生長于銅礦區的蓼科植物酸模、小頭蓼和戟葉酸模為試驗材料,運用砂培、土培等方法,研究它們對重金屬( cu 、 zn )以及放射性核素( ~ ( 134 ) cs )的吸收和積累特性以及cu 、 zn脅迫條件下它們的生理生化特徵,初步探討它們在無機污染物污染土壤植物修復中的應用潛力。On the basis of archaeological samples and data collected over many years, as well as historical documents, the author investigates several questions intimately connected with the southern song official kilns : the uses and unique features of southern song pottery votive objects ; the relationships between wang jinxi and shao e, on the one hand, and the liqi ju ( bureau of ritual objects ), shao ju and xiuneisi official kiln, on the other ; and the styles and usages of the replica bronze ritual objects produced by the southern song kilns as ceramic objects
摘要作者在多年積累的考古實物資料的基礎上,結合歷史文獻,探討了與南宋官窯密切相關的諸問題:如南宋陶質祭器的使用與特徵,王晉錫、邵諤與禮器局、邵局、修內司官窯的關系,南宋官窯生產的仿青銅禮器瓷的性質與用途等。We suspected that c. demersum l. was inadequate used as a single bioaccumulator. while c. caroliniana a. could tolerate the higher lever of cu2 +, it is advised to be a better selection to phytoremediation. when the two submerge macrophytes were planted together in cu2 + solution, the respective bcf of copper in two plants increased and the toleration of c. demersum l. was enhanced slightly
水盾草體內富集的銅含量可以達到61 . 0mg kg ;金魚藻對銅離子的耐性很低,且葉片受到銅脅迫時容易脫落,不適合作為銅濃度高的水體的生物修復植物,水盾草對銅離子的耐性較高,適合應用於含銅水體的生物修復;金魚藻和水盾草共同培養時,植物體內對銅的積累量有所增加,金魚藻對銅的耐性也略有提高。The concentrations of copper, lead and zinc in the shoot of e. splendens were affected by chemical and physical properties, such as full contents of heavy metals in soils, soil ph and organic carbon content, etc. the shoot can accumulate copper more on the red sandy paddy soil collected from dongxiang country, jiangxi province, than on silt paddy soil from fuyang country, zhejiang province. e. splendens took up much less copper from fuyang soils, the concentrations of zinc and lead in shoot were not also quite low
在酸性紅砂土上植物對銅的吸收和富集隨土壤銅含量的增加而顯著升高;而在銅、鋅、鉛復合污染的中性泥沙土上海州香薷體內銅含量和積累量不高,處于正常植物生長范圍內,植物體內鋅、鉛含量及其積累量也不高,海州香薷對重金屬的吸收和富集能力有限。In contrast, plants from three populations of e. splendens showed high cu tolerance and substantial cu accumulation, under 100 umol l - 1 the plant of tl / zj / jd can accumulate 143. 5, 71. 9 and 58. 1 mg kg - 1 cu in the aboveground parts, respectively. the cu concentration in shoots was 16 to 27 times more than cu concentration in roots
在盆栽試驗條件下,海州香薷和紫花香薷對土壤銅、鋅、鉛復合污染都具有很強的耐性,地上部分銅、鋅、鉛等重金屬含量在植物生長期呈現動態變化,但植物地上部重金屬積累量保持增加趨勢。The work on seasonal dynamics of litter input and decomposition and the relationship between them and environmental factors was studied through the method of harvest and weight loss. soil respiration rate was measured by alkali - absorption method and the contribution from soil microorganism respiration and from root respiration was determined through trendline method of linear regression between soil respiration rate and belowground biomass. mathematical models were established between the seasonal dynamics of main components of soil total respiration including soil respiration, root respiration, soil microorganism respiration, litter respiration and environmental factors
應用收獲法和重量損失法對枯枝落葉輸入與分解的季節動態及其與環境因子的關系進行了研究;應用靜態氣室法測定了土壤總呼吸和凋落物呼吸,應用土壤呼吸量與地下生物量線性回歸趨勢線法測定了土壤微生物呼吸及根呼吸的貢獻量,運用相關分析法建立了土壤總呼吸、根呼吸、土壤微生物呼吸及其凋落物呼吸季節動態與環境因子之間的數學模型;應用灰色分析比較了兩群落土壤呼吸季節動態產生差異的原因;應用干重換演算法對土壤微生物能量積累量的季節動態進行了測定,建立了土壤微生物能量積累量與環境因子的數學模型;應用系統分析方法,利用分室模型,對兩群落枯枝落葉與微生物之間的能量流動進行了定量測定和穩定性分析。Agricultural intensification plays an important role in stabilizing the food production in china, while bringing about an increasing negative impact on the soil and eco - environment as a result of the long - term highly - intensive land use and agricultural chemical overuse, thus leading to degradation of soil physical, chemical and biological properties, which are demonstrated as soil nutrient imbalance, soil acidification, pollutant accumulation, and biodiversity deterioration and posing serious stress and threat to the ecosystem per se and the environment
摘要集約化農業對保障我國糧食安全發揮了巨大的作用,但其長期的土地高強度利用和農用化學品過量投入的負面影響也日益顯現,導致的以土壤養分失衡、土壤酸化、有害物質積累、生物多樣性衰退等為主要表現形式的土壤物理、化學和生物學退化,給生態系統本身與環境都帶來了巨大壓力和嚴重威脅。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毒理學研究的歷史及過去幾十年中所獲得的進展.金屬生態毒理學研究主要包括以下3個方向:環境中的轉移,毒性積累及危險評估.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.同時對金屬生態毒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毒理學發展的中心The results showed that drought stress at flowering stage delayed the date of the max filling - speed ( dmfs ), and weakened the rate of average growth ( rag ) and the max filling - speed ( mfs ), and then shorten linear dry matter accumulation phase and leveling - off of dry matter accumulation phase
結果表明:花期乾旱導致玉米最大灌槳速度出現時間推遲、籽粒相對生長率和最大灌裝速度減弱、干物質線性積累期和干物質穩定增長期顯著縮短,乾旱結束后植株通過提高幹物質線性積累期的持續時間和干重,以彌補前期乾旱的損失。分享友人