Question

请帮忙翻译成英文，很急，谢谢！！！！！！！！！！！！！！！！！！！！！

关键词：重金属离子，污染，叶绿素，拟南芥
Keyword: heavy metal, pollution, chlorophyll, Arabidopsis thaliana

第一部分：背景：天津、重金属污染及对叶绿素的影响、拟南芥介绍
第二部分：实施部分：种植、污水配制、处理、叶绿素含量测定
第三部分：总结：重金属离子污染下拟南芥叶绿素含量的变化及课题意义

4 选择拟南芥作为测试材料
生物学家通过对选定的生物物种进行科学研究，用于揭示某种具有普遍规律的生命现象，此时，这种被选定的生物物种就是模式生物。阿拉伯芥是一种十字花科植物，广泛用于植物遗传学、发育生物学和分子生物学的研究，已成为一种典型的模式植物，其原因主要基于该植物具有以下特点：
(1)植株形态个体小，高度只有30cm左右，1个茶杯可种植好几棵；
(2)生长周期快，每代时间短，从播种到收获种子一般只需6周左右；
(3)种子多，每株每代可产生数千粒种子；
(4)形态特征简单，生命力强，用普通培养基就可作人工培养；
(5)基因组小，只有5对染色体。

第二部分：实施：测试含有不同浓度重金属离子的污水对拟南芥叶绿素含量的影响，为污水治理提供依据。（查询金属离子Cd，Pb 和Cu在水中的允许含量）
【器材与试剂】
拟南芥种子，花盆，营养土，分光光度计、离心机、天平、剪刀、研钵、漏斗、移液管、烧杯、丙酮、石英砂、Cd(NO2)2、Pb(NO2)2、Cu(NO2)2、蒸馏水

1拟南芥的种植：
选择吸水性好，土质松软的营养土作为拟南芥种植土壤。在直径9cm的花盆中，每盆播种20-30颗。播种以后在花盆上罩上薄膜，给植株的生长提供一个湿润的环境。在第五天的时候出芽，约在第四个星期后长出第三片子叶，开始试验。

2含有重金属离子污水的配制
配制含有Cd(NO3)2，Pb(NO3)2，Cu(NO3)2的溶液，分别使其含有Cd2+，Pb2+，Cu2+离子的浓度为5mg/L、25mg/L、50mg/L、100mg/L
（过程自己写的详细一点，翻译成英文。）

3叶片叶绿素含量的变化：采用不同浓度的溶液处理拟南芥
向种植拟南芥的花盆中分别加入含有三种不同重金属离子浓度为5mg/L、25mg/L、50mg/L、100mg/L的污水30mL，拟南芥对低浓度重金属离子污染有一定的耐性，但随着时间增加，毒害作用逐渐增强，叶绿素含量下降，生长受到抑制。实验结果显示，不同浓度重金属处理下，拟南芥叶片叶绿素含量在第1 天均没有变化，其后3天叶绿素含量的变化(下降) 与对照组相比均达到显著水平，尤其是第4 天，叶绿素含量随着镉处理浓度增大而显著下降。

Answer 1

Keywords: heavy metal ions, pollution, chlorophyll, arabidopsis

Keyword: heavy metal, Arabidopsis thaliana, chlorophyll, leaves something

First part: background: tianjin, heavy metal pollution and on chlorophyll influence, arabidopsis introduction

The second part: the implementation of part: planting, sewage preparation, processing, chlorophyll content determination

Part 3: summary: under heavy metal ions pollution arabidopsis chlorophyll content changes and topic significance

4 choose arabidopsis as test materials

Biologists through for the selected biological species of scientific research, used to discover some has the universal law life phenomenon, at this time, this was selected species is model organisms. Arab thaliana is a kind of cruciferous plants, widely used in plant genetics and molecular biology, and developmental biology research, has become a kind of typical model plant, its reason mainly based on the plant has the following features:

(1) plant morphological individual small, height only about 30cm, 1 cup can be planted several tree,

(2) the growth cycle quickly, each generation time is short, from sowing to harvest seed typically require 6 weeks or so,

(3) seeds, bunches of each generation can produce thousands of seed;

(4) morphological characteristics, strong vitality, simple to use common medium can be artificial cultivation,

(5) genome small, only 5 of chromosomes.

The second part: the implementation: testing containing different concentration sewage with heavy metal ions of arabidopsis chlorophyll content effects for sewage disposal, provides the basis. (inquires Pb and Cd, metal ion Cu in water allows content)

[equipment and reagents.

Arabidopsis seeds, flower POTS, nutritional soil, spectrophotometer, centrifuge, balance, scissors, grind bowls, funnel, pipette, beaker, acetone, quartz sand, Cd, Pb (NO2) 2) 2, Cu (NO2 (NO2) 2, distilled water

1 arabidopsis planting:

Choose good water imbibition, soil soft nutritional soil as arabidopsis planting soil. In diameter 9cm flower, every laver sowing 20-30 star. After sowing in flowerpot on the hood film, give a growth of plant offers a wet environment. In on the fifth day, about in the fourth deried from weeks after the third piece of cotyledons grow and began to experiment.

2 containing heavy metal ions sewage compound

Compound containing Cd (NO3) 2, Pb (NO3) 2, Cu (NO3) 2 solution, respectively satisfy its contain Cd2, Pb2 + + Cu2 + ions concentration, for 5mg/L, 25mg/L, 50mg/L, 100mg/L

(process oneself write detailed point, translated into English.

3 chlorophyll content change: adopt different concentrations of aqueous arabidopsis

To grow in arabidopsis flower adds contains three kinds of different heavy metal ion concentration for 5mg/L, 25mg/L, 50mg/L, 100mg/L sewage 30mL, arabidopsis of low concentration of heavy metal ion pollution have patience, but as time increases, poisons action strengthen gradually, chlorophyll content decreased, growth is restrained. The experimental results showed that under different concentrations heavy metal processing, arabidopsis chlorophyll content in the first days there were no changes, the next three days chlorophyll content changes (down) compared with control significant level, especially for the first four days, chlorophyll content with cadmium concentration of aqueous increase significantly.

Input the content has reached length limitation

Answer 2

First part: background: tianjin, heavy metal pollution and on chlorophyll influence, arabidopsis introduction
The second part: the implementation of part: planting, sewage preparation, processing, chlorophyll content determination
Part 3: summary: under heavy metal ions pollution arabidopsis chlorophyll content changes and topic significance

4 choose arabidopsis as test materials
Biologists through for the selected biological species of scientific research, used to discover some has the universal law life phenomenon, at this time, this was selected species is model organisms. Arab thaliana is a kind of cruciferous plants, widely used in plant genetics and molecular biology, and developmental biology research, has become a kind of typical model plant, its reason mainly based on the plant has the following features:
(1) plant morphological individual small, height only about 30cm, 1 cup can be planted several tree,
(2) the growth cycle quickly, each generation time is short, from sowing to harvest seed typically require 6 weeks or so,
(3) seeds, bunches of each generation can produce thousands of seed;
(4) morphological characteristics, strong vitality, simple to use common medium can be artificial cultivation,
(5) genome small, only 5 of chromosomes.

The second part: the implementation: testing containing different concentration sewage with heavy metal ions of arabidopsis chlorophyll content effects for sewage disposal, provides the basis. (inquires Pb and Cd, metal ion Cu in water allows content)
[equipment and reagents.
Arabidopsis seeds, flower POTS, nutritional soil, spectrophotometer, centrifuge, balance, scissors, grind bowls, funnel, pipette, beaker, acetone, quartz sand, Cd, Pb (NO2) 2) 2, Cu (NO2 (NO2) 2, distilled water

1 arabidopsis planting:
Choose good water imbibition, soil soft nutritional soil as arabidopsis planting soil. In diameter 9cm flower, every laver sowing 20-30 star. After sowing in flowerpot on the hood film, give a growth of plant offers a wet environment. In on the fifth day, about in the fourth deried from weeks after the third piece of cotyledons grow and began to experiment.

2 containing heavy metal ions sewage compound
Compound containing Cd (NO3) 2, Pb (NO3) 2, Cu (NO3) 2 solution, respectively satisfy its contain Cd2, Pb2 + + Cu2 + ions concentration, for 5mg/L, 25mg/L, 50mg/L, 100mg/L
(process oneself write detailed point, translated into English.

3 chlorophyll content change: adopt different concentrations of aqueous arabidopsis
To grow in arabidopsis flower adds contains three kinds of different heavy metal ion concentration for 5mg/L, 25mg/L, 50mg/L, 100mg/L sewage 30mL, arabidopsis of low concentration of heavy metal ion pollution have patience, but as time increases, poisons action strengthen gradually, chlorophyll content decreased, growth is restrained. The experimental results showed that under different concentrations heavy metal processing, arabidopsis chlorophyll content in the first days there were no changes, the next three days chlorophyll content changes (down) compared with control significant level, especially for the first four days, chlorophyll content with cadmium concentration of aqueous increase significantly.

Answer 3

Part I: Background: Tianjin, heavy metal pollution and the impact of chlorophyll, Arabidopsis Introduction
Part II: Implementation part: planting, water preparation, treatment, determination of chlorophyll
Part III: Summary: Arabidopsis thaliana under heavy metal pollution, changes in chlorophyll content and the subject of significance

4 selected as the test material in Arabidopsis
Biologists selected species through scientific research, to reveal a universal law of life phenomena, this time, this species is that the selected model organisms. Is a cruciferous plant Arabidopsis thaliana, widely used in plant genetics, developmental biology and molecular biology, has become a typical pattern of plants, mainly due to the plant based on the following features:
(1) plant morphology small size, height of only 30cm or so, a good cup for planting trees;
(2) fast growth cycle, every generation time is short, generally from seed sowing to harvest only about 6 weeks;
(3) seed number per plant per generation can produce thousands of seeds;
(4) morphological characteristics of simple, vitality, can be made with ordinary artificial culture medium;
(5) genome is small, only 5 pairs of chromosomes.

Part II: Implementation: Testing of heavy metal ions with different concentrations of sewage on the chlorophyll content of Arabidopsis thaliana, provide the basis for wastewater treatment. (Query metal ions Cd, Pb and Cu content in the water allowed)
】 【Equipment and reagents
Arabidopsis seeds, flower pots, nourishment soil, spectrophotometer, centrifuges, scales, scissors, mortar, funnel, pipette, beaker, acetone, quartz sand, Cd (NO2) 2, Pb (NO2) 2, Cu (NO2) 2, distilled water

An Arabidopsis plant:
Select absorbent, soft soil nutritive soil as planting soil in Arabidopsis. 9cm in diameter pot, the pot planting 20-30 teeth. After sowing in pots on the cast film, the growth of a plant to provide a moist environment. Sprouting in the fifth day, when about to grow in the fourth week after the third film leaves began to experiment.

2, preparation of sewage containing heavy metal ions
Preparation containing Cd (NO3) 2, Pb (NO3) 2, Cu (NO3) 2 solution, respectively, to contain Cd2 +, Pb2 +, Cu2 + ion concentration of 5mg / L, 25mg / L, 50mg / L, 100mg / L
(Written in some detail the process of their translation into English.)

3 changes of chlorophyll content: solution treated with different concentrations of Arabidopsis
To the cultivation of Arabidopsis thaliana were added to pots containing three different concentrations of heavy metals 5mg / L, 25mg / L, 50mg / L, 100mg / L of sewage 30mL, Arabidopsis heavy metal ion contamination of low concentration to a certain extent patience, but as time increases, the toxic effects gradually increased, decreased chlorophyll content, growth was inhibited. The results showed that treatment with different concentrations of heavy metals, the Arabidopsis chlorophyll content did not change on day 1, followed by 3 days the chlorophyll content of the change (decrease) compared with the control group reached a significant level, especially the first 4 days , chlorophyll content increased with increasing concentration of Cd decreased significantly.

Answer 4

First part: background: tianjin, heavy metal pollution and on chlorophyll influence, arabidopsis introduction
The second part: the implementation of part: planting, sewage preparation, processing, chlorophyll content determination
Part 3: summary: under heavy metal ions pollution arabidopsis chlorophyll content changes and topic significance

4 choose arabidopsis as test materials
Biologists through for the selected biological species of scientific research, used to discover some has the universal law life phenomenon, at this time, this was selected species is model organisms. Arab thaliana is a kind of cruciferous plants, widely used in plant genetics and molecular biology, and developmental biology research, has become a kind of typical model plant, its reason mainly based on the plant has the following features:
(1) plant morphological individual small, height only about 30cm, 1 cup ...

Answer 5

这个真是相当的学术和专业啊,不好意思,爱莫能助.