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与生物有关的英文文献

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与生物有关的英文文献

Acta Biologica Hungarica 2014-12-01 Regulation of auxin, abscisic acid and salicylic acid levels by ascorbate application under heat stress in sensitive and tolerant maize Burcu Seckin Dinler, Emel Demir, Yasemin Ozdener KompePMID 25475985 AbstractIn the present study, the effect of ascorbic acid (5 mM) on some physiological parameters and three hormones (auxin, abscisic acid, salicylic acid) was determined under heat stress (40 °C) in maize tolerant (MAY 69) and sensitive SHEMAL (SH) at 0 h, 4 h and 8 Heat stress reduced total chlorophyll content (CHL), relative water content (RWC) and stomatal conductance (gs) in SH but did not lead to changes in MAY 69 at 4 h and 8 However, pretreatment with ascorbic acid increased (CHL), (RWC) and (gs) in SH under heat stress while it reduced MDA content significantly in both We also observed that heat stress led to a reduction in SA level but increased ABA and IAA levels in SH, whereas it increased SA and IAA levels but did not change ABA level in MAY 69 at 4 Furthermore, in SH, ASC application under heat stress increased SA level and decreased IAA and ABA levels at 4 h, but it had no effect on SA and ABA at 8

Nucleic acids and proteins such biological molecules life is the material base, the origin of life key lies in the origin of these life substances, the original in no life on the earth because of natural causes, and through inanimate matter produce various chemical action, organic matter and biological Therefore, the origin of life problem is first primitive of the origin and early evolution of organic The role of chemical evolution is a kind of chemical materials, these chemical material composition amino acids, sugar etc universal "structural unit", nucleic acids and proteins such life from this knot "material is the combination of structural element" In 1922, biochemists Mr Bahrain's first proposed can be used to verify that the hypothesis, the original earth in some of the inorganic, from lightning, sunlight, under the action of the energy into the first batch of organic After the 1953 after 31 years, American chemist miller's first test card in bahrain that He die like original earth with atmospheric composition, hydrogen, methane and ammonia and water vapor, through the heating and spark discharge, synthetic organic molecular amino Following the miller, many through simulation experiment of original earth And the other for the synthesis of the important biological organisms molecules, such as DNA and its set, adenine, deoxyribose nucleoside and nucleotide,, fatty acid, porphyrins and lipid, In 1965 and 1981, our country and in the world's first synthetic insulin and yeast alanine transfer RNA Protein and nucleic acid is formed by the turning point to a lifeless The above two kinds of biological molecules of synthetic success, started by artificial synthetic life substances to study the new era of the origin of Generally speaking, life chemical evolution process including four stages: small molecules generated from inorganic small organic molecules; Small organic molecules from formation organic macromolecular; From organic macromolecular composition can sustain itself the stability and development of many molecular system; Evolution of molecular system from more primitive 核酸和蛋白质等生物分子是生命的物质基础,生命的起源关键就在于这些生命物质的起源,即在没有生命的原始地球上,由于自然的原因,非生命物质通过化学作用,产生出多种有机物和生物分子。因此,生命起源问题首先是原始有机物的起源与早期演化。化学进化的作用是造就一类化学材料,这些化学材料构成氨基酸,糖等通用的“结构单元”,核酸和蛋白质等生命物质就来自这结“结构单元”的组合。 1922年,生物化学家奥巴林第一个提出了一种可以验证的假说,认为原始地球上的某些无机物,在来自闪电,太阳光的能量的作用下,变成了第一批有机分子。时隔31年之后的1953年,美国化学家米勒首次实验证了奥巴林的这一假说。他模似原始地球上的大气成分,用氢、甲烷、氨和水蒸气等,通过加热和火花放电,合成了有机分子氨基酸。继米勒之后,许多通过模拟原始地球条件的实验。又合成出了其他组成生命体的重要的生物分子,如嘌呤、嘧定、核糖、脱氧核糖、核苷、核苷酸、脂肪酸、卟啉和脂质等。1965年和1981年,我国又在世界上首次人工合成胰岛素和酵母丙氨酸转移核糖核酸。蛋白质和核酸的形成是由无生命到有生命的转折点。上述两种生物分子的人工合成成功,开始了通过人工合成生命物质去研究生命起源的新时代。一般说来,生命的化学进化过程包括四个阶段:从无机小分子生成有机小分子;从有机小分子形成有机大分子;从有机大分子组成能自我维持稳定和发展的多分子体系;从多分子体系演变为原始生命。

有关微生物的资料文献英文

μG@Sbase--a microbial gene expression and comparative genomic axdLoad2 and maxdBrowse: standards-compliant tools for microarray experimental annotation, data management and 建议你自己到pubmed上检索与你感兴趣的文献

只有摘要,没有全文。 Formation of diacetyl by cell-free extracts of Leuconostoc lactis This article is not included in your organization's However, you may be able to access this article under your organization's agreement with EKieran N Jordana, , , Margie O'donoghueb, Seamus Condonb and timothy M Coganaa Teagasc, National Dairy Products Research Centre, Moorepark, Fermoy, C Cork, Irelandb Department of Microbiology, University College Cork, Cork, IrelandReceived 28 May 1996; revised 19 July 1996; accepted 14 August ; Available online 22 March AbstractDiacetyl formation was linear with time and with protein concentration when a cell-free extract of Leuconostoc lactis NCW1 was added to a buffer system containing pyruvate, thiamine pyrophosphate and MgS4 (final concentrations 60 mM, 11 mM and 22 mM, respectively) No diacetyl was detected in the absence of pyruvate or cell-free extract and no increase in diacetyl formation was detected on the addition of acetyl-CoA When 2-acetolactate (6 mM) was the substrate, autodecarboxylation to diacetyl and acetoin occurred under aerobic and anaerobic When cell-free extract was added, decarboxylation of 2-acetolactate to acetoin and diacetyl increased 4–6-fold, under aerobic and anaerobic When the cell-free extract was boiled, diacetyl formation from 2-acetolactate was reduced to the level of The results suggest that diacetyl is formed enzymatically in the presence and absence of oxygen, as well as spontaneously, from 2-

B When man goes to space, inevitably microbes hitchhike Some of these microbes are needed ( for the human body, for water purification, food production, ), others are unwanted ( pathogens, food spoilage, etc) To assure the safety and well -being of the astronauts in their closed and isolated space habitat these microbes have to be monitored and Therefore it is required to understand how earthly bacteria acclimate on the short term and adapt over the long term to space A The aim of this work is to investigate how bacteria respond and behave in space flight This is done through experiments in the International Space Station during short space missions ( MESSAGE 1 & 2 experiments, MOBILISATSIA experiment) and experiments on ground mimicking space radiation and microgravity The environmental bacteria Cupriavidus metallidurans CH34, Rhospirillum rubrum S1H, Eschericia coli, Pseudomonas aeruginosa PAO1 and Bacillus cereus have been sel ected as test 翻译:背景。当男人去太空,不可避免的微生物搭便车。其中的一些 细菌是必要的(如对于人体,对水质净化、粮食生产,等等。) 其他人是不必要的(如病原体、食品腐坏等等)。确保安全及-being 宇航员在其封闭的空间,这些微生物栖息地和孤立的 监视和控制。因此必须了解地球细菌 适应环境相适应的短期和长期的太空飞行。 目的。这个工作的目的是探讨如何应对和细菌表现在太空飞行 条件。这是通过实验,在国际空间站,在短暂的 太空任务(例如。要旨1和2个实验中,MOBILISATSIA试验)和实验模拟空间辐射地面和微重力环境。Cupriavidus metallidurans CH34环境细菌,Rhospirillum石S1H Eschericia、大肠杆菌、绿脓杆菌PAO1和芽胞杆菌已经被作为测试生物摘录。

额。。。楼上的各位实在都太不靠谱了。。看来拿分的只能是我了。。。。跪谢楼上各位大大的不精彩答案啊

和生物工程有关的英文文献

补充下 英文的有 nature和 science

作为一个资深百度知友,我可以负责任的告诉你,花20金币在百度给你翻译2万字符的廉价劳动力还没有,建议你去别的地方看看吧

Journal of Biological Chemistry中国生物化学与分子生物学报生命的化学生物化学杂志中国生物工程杂志

易证根同学,请自己独立完成作业!!

关于生物的英文文献

Biology, with the kinetic energy of life, is a collection of objects, but refers to the individual biological What is the biological?Bio is the state's middle and high school subject, its purpose is to enable students to understand the earth we live and survive on the Earth and nature of the biological 生物学与生命的动能,是对象的集合,而是指个体的生物有机体。什么是生物?生物是国家的初中和高中的主题,其目的是让学生了解地球和我们生活在地球上的生物奥秘和大自然生存。

不是专业人士,力不从心

我毕业论文也是生物,我在好几个平台上面找,后面委托清北医学翻译帮我弄了,翻译,润色,降重等服务那边都有,你可以去看看。

Biodiversity is an important theme in biology and is crucial to theprosperity and survival of The benefits that ecosystems andindividual species provide to humans are countless: clean air andwater, detoxification and decomposition of wastes, preservation offertile soils, control of agricultural pests, aesthetic beauty,(Campbell & Reece, 2002) and many Moreover, biodiversity iscommonly studied to view community structure and the health of aparticular Species richness and abundance values can helpbiologists address certain environmental concerns and possiblesolutions to issues they may Bio Science 1 students at SolanoCommunity College often conduct studies of freshwatermacroinvertebrates in Suisun Creek to view biodiversity and todetermine water The upstream and downstream sites rests onprivate property identified to the students only as �0�0“Frank�0�0’s Place�0�0”The settings of the Suisun Creek sites were both overwhelmed withvegetation and overhead Timing of sampling is directlyrelated to the resulting collected Species diversity indices,such as Family-level biotic Index, are used to provide importantinformation on the community structure of freshwatermacroinvertebrates and can often tell us the overall health of theregion we are studying also FBI provides a rapid, but less critical,evaluation of streams in the field by biologists who can recognizearthropod families by [2] The non-living, abiotic componentsthat the class attempted to research at all three stream locationsincluded taking readings of the water's: temperature (oC), dissolvedoxygen [% saturation and (mg/l)], conductivity (�0�0�0�8S), specificconductance (�0�0�0�8S), salinity (ppt), and pH Dissolved oxygen is ameasured value of the oxygen content that is present in the

与生物化学有关的文献

Glutathioneperoxidases(GPx)抗氧化剂selenoenzymes保护各种organismsfrom氢过氧化物的氧化压力通过催化还原谷胱甘肽的消费。GPx家族包含四种类型的酶,classicalcytosolic GPx(cGPx),磷脂氢过氧化物GPx(PHGPx),等离子体GPx(pGPx)和胃肠道GPx(giGPx),所有这些都需要硒催化活性在活跃的网站。这些enzymesdiffers大大取决于氢过氧化物的反应性和硫醇辅因子。正统GPx专门利用谷胱甘肽作为reductionof减少衬底过氧化氢和有限数量的有机氢过氧化物,如cumenehydroperoxide和叔丁基氢过氧化物。PHGPx也使用谷胱甘肽asphysiological减少衬底,但是氢过氧化物基质specificityis更广泛。这种酶活跃在所有磷脂氢过氧化物,fattyacid氢过氧化物,氢过氧化枯烯,叔丁基氢过氧化物,cholesterolhydroperoxides和过氧化氢。另一方面,氢过氧化物substratespecificity pGPx更受限制的。尽管pGPx可以减少过氧化氢andorganic氢过氧化物,它比cGPx lessactive大约10倍。cGPx相比,谷胱甘肽是一个贫穷减少substratefor这种酶。以来的浓度减少humanplasma硫醇团体非常低,很可能减少衬底为等离子体酶,谷胱甘肽。另外,细胞外的硫氧还蛋白还原酶、硫氧还蛋白或glutaredoxin可以合理的候选人。catalyticcycle GPx包括三个主要步骤,如图3所示。

我在微生物前沿这本刊上看到过这篇文献“漆酶生物转化酚类化合物的研究进展”,你多看看学习下吧

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