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different developmental stage
相关语句
  不同发育时期
    Use the anthers of Triticale AHIO01 F_8 which are in different developmental stage.
    小黑麦AH1001 F_8不同发育时期的雄蕊制片,在透射电镜下观察结果。
短句来源
    ANALYSES OF mRNAs FROM YUE TAI ETIOLATED SEEDLINGS AND DIFFERENT DEVELOPMENTAL STAGE ANTHERS
    水稻红莲型粤泰不育系和保持系黄化苗及不同发育时期花药的mRNA分析
短句来源
    Total soluble proteins were extracted from non-embryogenic cells, embryogenic cells and different developmental stage of somatic embryos from carrot (Daucus ca-rota L.)
    应用IEF/SDS-PAGE双向电泳技术,比较了胡萝卜胚性细胞、非胚性细胞和不同发育时期的胚状体中可溶性蛋白的双向电泳图谱,结果发现在胚性细胞中特异存在的胚性细胞蛋白在不同发育时期的胚状体中也存在,但在非胚性细胞中不存在。
短句来源
    Pollen grains of 15 individuals from Caragana microphylla and its two affinities and of 4 flower buds in different developmental stage on same individual were observed by SEM.
    用扫描电镜在个体水平上研究了小叶锦鸡儿及其两个近缘种 1 5株植物和同株不同发育时期 4朵花蕾中的花粉形态 .
短句来源
    The determination and differentiation of notochord in Bufo bufo gargarizans embryos in different developmental stage have been systematically studied.
    本实验以不同发育时期的中华大蟾蜍胚胎为材料,对其在胚胎发育过程中脊索的决定及分化进行了系统的研究。
  “different developmental stage”译为未确定词的双语例句
    Detection of Reactive Oxygen Species(ROS) in Different Developmental Stage Mouse Embryos in Vivo and in Vitro
    体内和体外不同发育阶段小鼠胚胎内部活性氧(ROS)的测定
短句来源
    Different human fetal brain tissues(cerebrum and cerebellum) and those at different developmental stage(13-week and 33-week) were subject to mRNA differential display analysis(also referred to as differential display RT-PCR or DDRT-PCR).
    本文选择不同部位(如大脑与小脑)或不同发育阶段(13周、33周)的人胎脑组织,应用mRNA差异显示分析(又称DDRT-PCR)等技术,系统分离、鉴定有差异表达特征的新基因cDNA。
短句来源
    Peroxidase Activity in Psophocarpus Thetragonolobus Leaves at Different Developmental Stage
    四棱豆不同生育期叶片中过氧化物酶活力测定
短句来源
    PRELIMINARY EXPLORATION OF THE NEUROTROPHIC ACTIVITY OF DORSAL HORN EXTRACT OF EMBRYONIC CHICKEN DURING DIFFERENT DEVELOPMENTAL STAGE
    不同发育期鸡胚脊髓背角提取液的神经营养活性初探
短句来源
    Study on expressive discrepancy of ppGalNAc-T family in brain of mouse at different developmental stage
    多肽:N-乙酰氨基半乳糖转移酶家族在不同生长阶段的小鼠脑中的mRNA表达差异
短句来源
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  different developmental stage
fortunei larvae differed strongly in fishes of different developmental stage.
      
Somatic embryogenesis was asynchronous and embryoids, of different developmental stage, were simultaneously detected on each explant.
      
Contrary to our prediction (ibid.), the s19 and s18 genes have been found to be tightly linked in spite of the fact that they display somewhat different developmental stage specificity.
      
Different frequencies of marrow SC plasticity may be attributed to either different isolation technologies or different developmental stage SCs with more or less multipotentiality.
      
We cannot resolve, however, whether these represent distinct types of neurons or the same type of neuron in a different developmental stage.
      
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1. This article reports the observations of the early (5, 30, 60 minutes and 6 hours) reactions of the male germ cells of the white mice to a single dose and whole-body irradiation. The conditions of irradiation are: voltage, 140 kvp; current, 11 ma; dose rate, 100 r/min.; distance, 46 cm; and the effective dosage, 600 r. As fixative we use FAA and the paraffin sections are stained with method of Feulgen reaction, counterstaining with fast green.2. In the sections of the testes fixed at the intervals of 30 and...

1. This article reports the observations of the early (5, 30, 60 minutes and 6 hours) reactions of the male germ cells of the white mice to a single dose and whole-body irradiation. The conditions of irradiation are: voltage, 140 kvp; current, 11 ma; dose rate, 100 r/min.; distance, 46 cm; and the effective dosage, 600 r. As fixative we use FAA and the paraffin sections are stained with method of Feulgen reaction, counterstaining with fast green.2. In the sections of the testes fixed at the intervals of 30 and 60 minutes after irradiation we observed within the seminifereous tubules the germ cells of different developmental stages having various reactions: (a) the spermatogonia may form the chromosomal bridges at the anaphase of mitosis; (b) the spermatocytes at the growth period may undergo pycnosis, nuclear swelling, reversion of pachytene nucleus to the resting state, or formation of syncytia; at the time of meiosis, they either form chromosomal bridges, possess irregularly distributed chromosomal clumps, or die at the stopped metaphase; (c) the spermatids and the developing sperms may appear pycnotic, undergo nuclear or cytoplasmic vacuolization, form syncytia, or enclose one or more anormalous nuclei, resulting from the lag or abnormal development; (d) the mature sperm, the Sertoli cells, as well as the interstitial cells are not affected. 3. The cells of the same stage are subjected to the various degrees of radiation injury and the mode of their reactions is also various.4. The problems, such as the cellular radiosensitivity, the mitosis and the expression of the radiation effects, and the action of radiation on cytoplasm and nucleus, are tentatively discussed.

1.本文系报告用X射线一次全身照射小白鼠以观察其睾丸中生殖细胞对600伦X射线照射后的早期(5分钟、30分钟、60分钟、6小时)反应。照射条件为:电压140千伏,电流11毫安,出射率100伦/每分钟,距离46厘米,有效剂量600伦。固定剂用FAA;用孚尔根反应着色,快绿作补染。 2.在照射后30分钟及60分钟固定的睾丸制片中观察到精小管内不同发育阶段的生殖细胞有各种反应:(1)精原细胞在分裂后期形成染色体桥;(2)精母细胞在生长期呈固缩,核胀大及返回休止态,组成合胞;在分裂时形成染色体桥,染色体凌乱分布,中期滞死等等;(3)精子细胞与发育中的精子表现固缩,胞核或胞质空泡化,形成合胞,核畸形(变态延缓或失常);(4)成熟的精子,支持细胞和间隙细胞不受影响。 3.同一发育阶段的细胞受到射线的伤损程度不同,反应的方式亦不一致。 4.对于细胞的辐射敏感性,有丝分裂与辐射效应的表现,以及辐射作用对于胞质和胞核的影响等问题作了初步的讨论。

A single dose of 100 Y of x-rays was given to the female albino mice (C-I) at different ages between newborn to 38-days old.The degree of radiation injuries and the radiation sensitivity of the ovary decrease as the age of the animal increases.Radiation sensitivity differs in the different types of follicles and in their different developmental stages too.And the injurious pictures differ in the different types of follicles.However,no significant morphological difference could be found...

A single dose of 100 Y of x-rays was given to the female albino mice (C-I) at different ages between newborn to 38-days old.The degree of radiation injuries and the radiation sensitivity of the ovary decrease as the age of the animal increases.Radiation sensitivity differs in the different types of follicles and in their different developmental stages too.And the injurious pictures differ in the different types of follicles.However,no significant morphological difference could be found between the injures follicles of the exposed mice and the senile follicles of the controls.The number of the injured oocytes in the ovaries of the x-radiation newborn mice increases rapidly as the dose of x-rays (within the range of 5-50 r) increases.

出生后38天内不同年龄的中国一号品系雌性小鼠,经100伦琴的X射线照射后24小时,卵巢的损伤程度随着小鼠年龄的增大而放射敏感性相应地降低,卵巢发育不同阶段中不同类型的滤泡具有不同的放射敏感性,并且不同类型的滤泡具有不同的损伤景象。但对照小鼠卵巢中的退化滤泡与照射组中的损伤滤泡并无可观察到的形态学方面的差别,出生当天小鼠原始卵母细胞的损伤数随着照射剂量的增加(5—50伦琴)而急剧地升高。

Thio-TEPA was reported in a previous paper (Chang et al., 1963) as an effectivechemosterilant for the common housefly, Musca domestica vicina Macq. Detailed studieswere undertaken to ascertain the influences of different methods of treatment, sex andage of the flies and the developmental stages of the insect. Feeding technique proved to be an effective and easy method; 0.5% Thio-TEPAin milk powder (w/w) for 2 days or 1.0% for 1 day induced complete sterility, eggswere laid but none hatched....

Thio-TEPA was reported in a previous paper (Chang et al., 1963) as an effectivechemosterilant for the common housefly, Musca domestica vicina Macq. Detailed studieswere undertaken to ascertain the influences of different methods of treatment, sex andage of the flies and the developmental stages of the insect. Feeding technique proved to be an effective and easy method; 0.5% Thio-TEPAin milk powder (w/w) for 2 days or 1.0% for 1 day induced complete sterility, eggswere laid but none hatched. Contact method and topical application also proved effec-ti ve; 50 μg per fly induced complete sterility, no eggs were laid, and 5 μg per fly wasstill effective in reducing 90% of the reproductive potentialities. 10 mg per 5 sq. inchfor a half to two-hour contact induced complete or almost complete sterility. If thecontact time were shortened to 10 minutes, there was still 90% reduction of reproductivepotentialities. When different sexes were tested with effective dosage, using both topical applica-tion or feeding technique, treated females crossed with normal males were more effectivethan treated males crossed with normal females. In the former case, no eggs were laid;in the latter, both the number of eggs and the percentage of emergence were reduced,totalling to a reduction of 85--90% of the reproductive potentialities. When different developmental stages of the insect were treated, results revealed thatthe pupae were most resistant (a 10-fold increase in dosage is necessary in submergingtechnique to maintain the same effect), probably due to the poorer penetration of thechemical through the puparium. Third instar larvae were more sensitive than the firstinstar larvae, and many morphological abnormalities, chiefly of the wing, appeared inlarval treatment. When adult flies of different ages were tested, 2-day old flies were almost as sensi-tive as the newly hatched ones, but 4-day old and 6-day old flies were less sensitive.They laid a small number of eggs viable on the 7th day, then they became sterile after-wards; showing that the effect of the chemical took several days to take place. These results were discussed in relation to housefly control by Thio-TEPA, and itwas concluded that treatment of adults by poison baits seemed to be the method ofchoice.

利用家蝇成虫作为不育性试验对象有许多优点:饲养和处理方便,并对药剂敏感。采用标准培养基饲养幼虫,可以维持家蝇成虫性比在1:1。这就减少了在大量筛选试验中区分性别的工作。 本试验企图阐明,不同处理方法、不同性别、年龄、不同发育阶段对于测定效果有无差异。首先,用了三种不同处理方法,结果显示出以饲食法处理效果比较好,既方便又经济(用药量少),而且兼有滴液接触的有效性。这说明了Thio-TEPA很可能在昆虫消化道中不被代谢而被吸收,与表皮的穿透性大致相等的缘故。使用这三种不同处理方法使家蝇完全获得不育的有效浓度(或剂量)分别是:饲食法,0.5%Thio-TEPA 48小时(不产卵)或24小时(产卵不孵化);体壁液滴法,每蝇 50微克:接触法,5平方寸面积上点药 10毫克,接触半小时。如果减低浓度和时间,效果稍差一些。 其次,以有效浓度0.5%和50微克的Thio-TEPA处理不同性别的家蝇成虫(无论是饲食法或是体壁液滴法),对处理雌蝇×处理雄蝇,以及处理雌蝇×正常雄蝇,都能造成家蝇成虫完全不产卵,卵巢显著见小。处理雄蝇×正常雌蝇,虽然也能产卵并孵化,但不育性的总效果仍在85—90%以上。而且孵化出来的幼虫大都不能继续...

利用家蝇成虫作为不育性试验对象有许多优点:饲养和处理方便,并对药剂敏感。采用标准培养基饲养幼虫,可以维持家蝇成虫性比在1:1。这就减少了在大量筛选试验中区分性别的工作。 本试验企图阐明,不同处理方法、不同性别、年龄、不同发育阶段对于测定效果有无差异。首先,用了三种不同处理方法,结果显示出以饲食法处理效果比较好,既方便又经济(用药量少),而且兼有滴液接触的有效性。这说明了Thio-TEPA很可能在昆虫消化道中不被代谢而被吸收,与表皮的穿透性大致相等的缘故。使用这三种不同处理方法使家蝇完全获得不育的有效浓度(或剂量)分别是:饲食法,0.5%Thio-TEPA 48小时(不产卵)或24小时(产卵不孵化);体壁液滴法,每蝇 50微克:接触法,5平方寸面积上点药 10毫克,接触半小时。如果减低浓度和时间,效果稍差一些。 其次,以有效浓度0.5%和50微克的Thio-TEPA处理不同性别的家蝇成虫(无论是饲食法或是体壁液滴法),对处理雌蝇×处理雄蝇,以及处理雌蝇×正常雄蝇,都能造成家蝇成虫完全不产卵,卵巢显著见小。处理雄蝇×正常雌蝇,虽然也能产卵并孵化,但不育性的总效果仍在85—90%以上。而且孵化出来的幼虫大都不能继续生长发育。这说明雌蝇对Thio-TEPA更为敏感,可能由于卵巢发育过程中卵黄蛋白质合成代谢受到影响?

 
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