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UV-B辐射增强对葡萄幼苗生长和生理生化影响的研究.pdf52页
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UV-B辐射增强对葡萄幼苗生长和生理生化影响的研究
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UV-B辐射增强对葡萄幼苗生长和生理生化影响的研究 摘 要 人类活动造成大气层中的臭氧层变薄,所直接引起的U-vB 280nn~l 犯0钊叮 辐射
增强已成为全球性的重大环境问题之一。当前,国内外学者对UVB‘辐射的生物学效应
做了广泛的研究,但实验对象多集中在大面积栽培的农作物和某些特定的生态系统,对
果树方面的研究涉及较少,其结果也存在一定差异。本文以赤霞珠幼苗作为材料,在自
然光照条件下人工施加强度分别为01一8林wc?m-2 TI组 和256.四c?耐
组UV-B辐射,每天处理h7,累计处理03d,以自然光照为对照
CK组 。研究了增强
的UVB‘辐射对葡萄幼苗生长及生理生化代谢的影响,以期为葡萄抗逆栽培技术的研究
奠定一定基础。 本研究主要获得以下结果: 1植株生长 在UVB‘辐射条件下,赤霞珠幼苗的生长受到了显著抑制,叶面
积变小、节间整体缩短、植株矮化,其抑制程度与辐射量的累积成正比。不同处理植株
受到的抑制程度为:TZ TI CK。低辐射强度虽对植株近生长点节间的延伸具有一定的
促进作用,但较CK不显著。 2 叶绿素 在增强的UV-B辐射条件下,叶绿素不同程度的受到了影响。在辐
射初期,处理组叶绿素a、叶绿素b和总叶绿素相对含量低于CK,当辐射处理第6d,
除低辐射强度叶绿素a以外,其它含量均显著低于CK。随着辐射量的累积,处理组叶
绿素a、叶绿素b和总叶绿素的含量逐渐高于CK。辐射处理第03d,高辐射强度叶绿素
b相对CK达到极显著水平;低辐射强度叶绿素b,以及高辐射强度叶绿素a和总叶绿
素相对CK达到显著水平。 3 紫外吸收物质 在增强的UVB‘辐射条件下,处理组葡萄叶片中的紫外吸收
物质和类黄酮含量较CK明显增加,且TZ TI CK。辐
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你可能喜欢结果表明,PVA处理种子后紫云英在冬季来临之前在生理生化方面适应了低温,抗寒性逐渐增强;
The result showed physiological and bio-chemical change of Chinese Milk Vetch with PVA pretreatment have adapted stress of low temperature before winter.
番茄作为一种模式植物,在生理生化、遗传及分子生物学等方面的研究广泛而深入。
Tomato (Lycopersicon esculentum) is used as a model plant, the researches conducting on physiology, biochemistry, genetics and molecular biology of tomato are widely and deeply.
植物的抗寒生理生化的变化是通过低温改变基因表达而引发的,在抗寒中起作用的基因已经识别出来,并且已经了解这些基因的作用方式。
Plant biochemical or physiological changes were caused by genes expression change under cold condition, moreover, the genes had been identified and the means of the genes action had been revealed.
补偿效应类型可分为生长补偿、生理生化补偿、代谢及产量补偿等;
The compensation effect is classified into growth compensation, physiological and biochemical compensation, and metabolism and output compensation.
以处于对数生长初期的悬浮培养细胞为试验材料,研究了在悬浮细胞与毒素亲和性与非亲和性互作早期阶段寄主细胞生理生化的变化。
The physiological and biochemical change of host during initial interaction phase between LA-toxin and suspension cell were studied by using suspension cell within logarithmic growth phase.
疏花水柏枝在水淹期间的休眠以及相关的生理生化变化是对水淹的主动适应。
It was concluded that the dormancy and the changes in physiological and biochemistry of M. laxiflora were an active adaptation to summer flooding.
研究了经完全消除苏云金芽胞杆菌野生菌株YBT-1463的内生质粒对该菌部分形态、遗传及生理生化特性的影响。
This paper reports the influence on morphological, genetic, physiological and biochemical properties of Bacillus thuringiensis Wild-type stamen YBT-1463 by curing its resident plasmids.
动物屠宰后,肌肉的生理生化变化是其品质形成的基础。
After animal slaughters , the physiological and bio-chemical variety of muscle is the foundation of its quality formation.
这为进一步深入研究蚜虫生理代谢、测定杀虫剂效果和探讨作物抗蚜生理生化机理等奠定了实验技术基础。
All these laid down a soild foundation for researches on aphid metabolism, identification of insecticide, the physiological and biochemical resistance mechanism of crops to aphid.
目的对三七果实发育过程中的生理生化变化进行研究。
Objective The physiological and biochemical changes were studied during the Panax notoginseng's fruit development.
研究了大田杂交水稻汕优6号冠层上部三片功能叶衰老过程中一些生理生化变化。
Some physiological and biochemical changes were studied in the top three leaves of field-grown hybrid rice cv. Shanyou 6 from flowering through senescence.
因此,叶片干物率的高低是衡量植株生长状况和内部代谢强弱的重要生理生化指标。
Thus, the size of the dry matter rate of leaves is an important physiological biochemical index for evaluating the state of plant growth and the activity of internal metabolism.
结果显示了氯代苯胺对鲫鱼体内生理生化作用的影响以及对机体的氧化损伤。
The results showed that chloroanilines brought to effect on physiological function and caused oxidative stress in crucian carp.
本文研究了紫萍在形态结构和生理生化方面对UV-B辐射的响应。
Effects of UV-B radiation on the morphological structure and physiological biochemistry in leafy thallus of Spirodela polyrhiza were investigated in the present study.
抗病能力强,生理生化指标都在正常范围之内。
Furthermore, the resisting power to disease, the index of physiological andbiochemical were all in the normal scope.
分析减压条件对梨枣生理生化变化的影响。
The aim was to analyze the effect of hypobaric condition on physiological and biochemical changes of Lizao jujube.
虽然老鼠比人少得多,他们被选为研究对象,因为他们的生理生化是类似于人类。
Although mice are much smaller than humans, they were chosen for the study because their physiology and biochemistry are similar to that of humans.
开花人工诱导对难开花的竹子来说是杂交育种和开花生理生化研究的理想研究系统,在10个竹种中诱导成功;
Artificial inducement of flowering is an ideal research system of cross-breeding and flowering bio-physiology for some species with bad-induced flowering, which has proved successful in 10 species.
本研究测定了用调控培养法获得的具高活力的静止状态胡萝卜体细胞胚的细胞学及生理生化特性。
Characteristics of cytology and physiology and biochemistry of high vigor quiescent carrot somatic embryos obtained by using the method of regulation culture were studied here.
文中分析了水分亏缺和非水分亏缺处理下白芥不同生育时期地上部分形态及生理生化指标。
Segment of the ground of White Mustard of shape and physiological and biochemical indexes were analysed under water defect and non-water defect.
通过处理前后烟草生理生化指标来探讨诱导抗性机理。
Use physiologic and biochemical index to discuss induced resistance mechanism.
概述了种子引发的研究现状,主要包括引发的重要方法及其原理、影响引发的因素和引发生理生化机理等。
The current status of seed priming research is summarised, including important methods and principles of priming, factors affecting priming, and physiological and biochemical mechanisms of priming.
酸性磷酸酶是植物体内重要的一种酶,该酶对植物的生理生化及生长发育有很大影响。
Acid phosphatase is one of important enzymes in higher plants, and has very big influence to the physiology bio-chemical and growth of the plant.
运动员的生理生化数值,可以反应运动员的训练强度、训练量、疲劳及恢复的情况等。
The physiological and biochemical data of athletes can represent the intensity and volume of training, and indicate the condition of fatigue and recovery.
滞育的生理生化机制、神经内分泌调控、分子机制和滞育应用研究,将成为今后蝴蝶滞育研究的热点;
The researches mainly focus on the effects of environment on diapause, but less on physiological, biochemical and neurohomonal mechanisms, and nearly few on molecular mechanisms.
水果的呼吸类型和生理生化的变化特点是贮运保鲜中重要的参考因素。
Types of respiration and characteristics of physiological-biochemical changes are some important reference factors in the storage and transportation of fruits.
植物中叶绿素含量是植物生理生化及生态调查中的一个重要测量参数。
Plant chlorophyll content is an important measurement parameter in physiological, biochemical, biophysical and ecological research.
根据生理生化及生长试验,该株菌被鉴定为不动杆菌属细菌。
The isolates were identified as Acinetobacter sp. based on the physiological, biochemical and growth tests.
根据生理生化及生长试验,该株菌被鉴定为不动杆菌属细菌。
The isolates were identified as Acinetobacter sp. based on the physiological, biochemical and growth tests.
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感谢您的反馈,我们会尽快进行适当修改!在生物化学中ppp是什么意思
磷酸戊糖途径(Pentose phosphate pathway,PPP):是指从 G-6-P 脱氢反应开始,经一系列代谢反应生成磷酸戊糖及NADPH等中间代谢物,然后再重新进入糖氧化分解代谢途径的一条旁路代谢途径.[6 G-6-P + 12NADP+ +7 H2O→5 G-6-P + 6CO2 + 12NADPH +12H+整个代谢途径在胞液中进行.包括葡萄糖的氧化脱羧阶段和非氧化的分子重排阶段.关键酶是6- 磷酸葡萄糖脱氢酶.]
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扫描下载二维码1、 参考值范围:(mmol/L)
脐带血 &&&&&&&&&&& 3.5~8.8
1小时 &&&&&&&&&&& 2.0~5.5
2小时&&&&&&&&&&&& 2.2~4.9
5~14小时&&&&&&&& 1.9~4.3
10~28小时&&&&&&& 2.6~4.5
44~52小时&&&&&&& 2.7~4.4
儿童(空腹)
1~6岁&&&&&&&&&& 4.1~7.0
7~19岁&&&&&&&&& 3.9~5.9
成人(空腹)&&&&&&&&& 3.9~6.4
参考值因性别、年龄、和地域的不同而有所差别。根据好的经验,每个实验室应建立自己的参考值。
2、 临床意义:检测血清或血浆中葡萄糖主要用于糖尿病的诊断和治疗监视,还可用于检出新生儿低血糖症、排除胰岛细胞癌以及评估各种疾病碳水化合物代谢状况。血清葡萄糖水平可能会异常高(高血糖)或异常低(低血糖)。葡萄糖测量用于诊断和治疗碳水化合物代谢紊乱,包括糖尿病,新生儿低血糖,自发性低血糖,郎格罕氏岛细胞癌等。
葡糖尿(存在葡萄糖化尿)在健康,怀孕的妇女中很常见。妊娠葡糖尿的最主要的特征就是每天之间或一天之中有一个显著的变化。
脑脊髓液(CSF)葡萄糖的测定帮助区别病毒性脑膜炎与性脑膜炎;细菌性脑膜炎和结核性脑膜炎中的葡萄糖值通常很低(不到的40%至50%血清葡萄糖),病毒性脑膜炎中的葡萄糖值通常是正常的。癌性脑膜炎(肿瘤细胞在脑膜中广泛渗透)也使CSF葡萄糖值在正常值以下。
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