查询词典 biotic and abiotic factors

It is the only production method that can sigificantly control abiotic and biotic factors.

这是唯一的生产方法，可以sigificantly控制生物和生物因素。

The extinction of species is concerned with the degree of threat by biotic and abiotic factors.

一个物种的灭绝是与其受生物因子和非生物因子的威胁程度相关的。

The uptake of dissolved metals, a potentially significant source for overall metal accumulation in bivalves , is liable to be influenced by biotic and abiotic factors.

对溶解态重金属的吸收是贝类累积重金属的重要来源之一，易受到生物因素和非生物因素的影响。

The extinction of species is concerned with the degree of threat by biotic and abiotic factors.

随着物种的加速绝灭，保护生物多样性受到广泛地关注。

The main aim of this institute is the research of biotic interrelations and their interactions with abiotic factors in lenitic water bodies, especially man-made reservoirs.

该研究所的主要目标是研究缓流水体尤其是人工水库中生物之间、生物与非生物因子之间的相互关系。

Review the biotic and abiotic factors, lead to the definition of ecosystem.

复习上节课的生物与非生物因素，并引出生态系统。

With the acceleration of extinction of species, biodiversity conservation is extensively concerned. The extinction of species is concerned with the degree of threat by biotic and abiotic factors.

一个物种的灭绝是与其受生物因子和非生物因子的威胁程度相关的。

Aims Soil respiration may have distinct dynamic patterns at different temporal scales since it is affected by diverse abiotic and biotic factors.

由于受到多种生物和非生物因素的影响，土壤呼吸在不同时间尺度上的动态变化可能不一致。

Isolation nematocidal compounds from nematophagous fungal strain K14: It is important to search for metabolites from microbes in controlling nematode because the effect of biotic and abiotic factors of soil to mycelium of microbes is evident.

一株产毒杀线虫菌物活性化合物的分离：由于活体菌对线虫的生防受土壤生物和非生物因素的影响较大，激发人们努力探索微生物次生代谢产物来防治线虫。

The summary results are below:1. GUS expression under the driving of the BjCHI1 promoter (-1060/+17) was essentially undetectable in the young seedlings under normal growth conditions. GUS activity was first detected in the stigma of young flowers, peaked in the young siliques, and decreased when the siliques became older. No GUS expression was found in the mature siliques, seeds or root.2. The BjCHI1 promoter (-1060/+17) was inducible by NaCl, PEG, wounding and MeJA treatments. High levels of GUS expression were detected in the transgenic tobacco and Arabidopsis plants after wounding, NaCl, PEG, and MeJA treatment, indicating that the BjCHI1 promoter responses to both biotic and abiotic stresses.3. RT-PCR analysis confirmed that the expression of the BjCHI1 gene in B. juncea was inducible by PEG and NaCl.4. The transcription start site was determined by 5′-RACE, and was located at the 17th nucleotide upstream of the translation initiation codon of the BjCHI1 gene.5. A -805/+17 promoter fragment was enough to response to wounding and MeJA induction, which was proved in transgenic tobacco and Arabidopsis plants. The 397 bp region between -805 and -409 of the BjCHI1 promoter contains a cis-acting element that is essential for the wounding and MeJA inducibility.6. The -695/-620 region was necessary but not sufficient to confer MeJA-responsive expression. A T/G-box locates in -353 play an important role in the expression of the BjCHI1 gene in response to MeJA treatment. The 76 bp region is coupled with the T/G-box to confer full MeJA-inducible transcription of the BjCHI1 gene.

主要结果如下：1、利用转基因拟南芥植株分析表明，正常生长条件下，BjCHI1启动子(-1060/+17)驱动GUS基因主要在花柱中表达，幼嫩的荚也有表达，并随着果荚的成熟而减弱，成熟的果荚、种子和根没有显示GUS活性。2、BjCHI1启动子(-1060/+17)能驱动GUS基因在转基因烟草和拟南芥中响应伤害的诱导，转基因拟南芥的分析还证明BjCHI1启动子也受MeJA、NaCl和PEG的诱导，证明BjCHI1启动子是一个伤害、MeJA、NaCl和PEG等生物和非生物因素诱导启动子。3、RT-PCR进一步证明芥菜中BjCHI1基因也受NaCl和PEG的诱导表达。4、5′-RACE法鉴定了BjCHI1启动子的转录起始位点，位于翻译起始位点ATG上游第17个碱基A.5、转基因烟草和拟南芥分析证明，-805/+17的启动子片段足以响应伤害和MeJA的诱导，-805和-409之间397 bp的启动子片段含有对伤害和MeJA诱导必要的元件。6、本明烟叶片瞬时表达系统分析证明，一段76 bp的序列(-695/-620)对BjCHI1启动子响应MeJA的诱导是必要的，但不足以响应MeJA的诱导，位于-353的T/G-box也参与MeJA的诱导。76 bp的序列(-695/-620)与T/G-box协同起作用，赋予BjCHI1启动子MeJA诱导性。

I think people in this lifetime in a rebirth.

我觉得人在这一生里其实也在轮回。

He had to tie her hands together.

他不得不把她的双手绑在一起。