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叶片细胞     
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  leaf cells
     Studies on influence of DA-6 regulation on leaf cells ultrastructure in Stevia rebaudiana Bertoni
     DA-6对甜菊叶片细胞超微结构的影响研究
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     Separation Method and SEM Observation of Tobacco Leaf Cells
     烟草叶片细胞分离方法与扫描电镜观察
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     Ultrastructural Observation of leaf cells of Myriophyllum verticillatum Linn, showed that La3+ coule alleviate the injury of cell structure produced by Cr6+.
     在狐尾藻叶片细胞超微结构水平上也能见到Cr~(6+)的毒害作用在稀土元素La~(3+)的作用下得到缓解。
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     Ultrastructural Affect of Compound Viruses Infection to Soybean Leaf Cells
     复合病毒感染对大豆叶片细胞超微结构的影响
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     Study on The Ultrastructure in Leaf Cells of Several Varieties of Black Wattle after Freezing
     几个不同种源的黑荆树在冰冻后叶片细胞超微结构的研究
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  leaf cell
     The changes in activities of superoxide dismutase(SOD),peroxidase(POD),contents of malonaldehyde(MDA) and relative conductivity in leaf cell of different tomato varieties were tested after tomato seedling were treated by Toxin from Cladosporium fulvum.
     以番茄幼苗为材料,研究了叶霉病菌毒素对番茄叶片内SOD酶、POD酶活性及叶片细胞相对电导率和MDA含量变化的影响。
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     The paper detal the identification of the virus isolated M-4 from alfalfa by IEMM and study on ultrastructure of leaf cell of different host which infected the virus in different time.
     本文详述了用免疫电镜法鉴定苜蓿病毒分离物M—4及不同时期感染该病毒的不同寄主叶片细胞超微结构的研究。
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     The detected results showed that nitrate activity in leaf cell of Chinese cabbage induced with 5 mol m -3 nitrate for 48h fell into two different populations, i.e. 0.24 mol m -3~10 mol m -3 in cytosol and 20 mol m -3~110 mol m -3 in vacuole. Since vacuolar volume accounts for 90% of a whole cell, most of the nitrate in plants is stored in vacuoles.
     测定结果表明,叶片细胞中硝酸根离子活度分布在活度高低明显不同的两个区间内,在细胞质中是0.24~10molm-3,液泡中20~110molm-3,且两个区间在细胞跨膜电位上也有差异。
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     Ultrastructural study of chloroplasts in leaf cell of pinellia ternata(thunb)breit
     半夏水半夏叶片细胞叶绿体超微结构的研究
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     The Studies on the Changes of Leaf Cell Morphology and Photosynthetic Performances during Evolutional Succession of Winter Wheat Cultivars in North China Ⅰ.Changes of Leaf Cell Morphology
     华北地区小麦品种更替过程中叶片细胞形态和光合性能演替规律的研究──Ⅰ.叶片细胞形态的演替
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  leaf cellular
     Alterations in leaf cellular ultrastructure of two winter-lawn grasses species subjected to high temperature and soil drought stress
     高温干旱下两种冷季型草坪草叶片细胞超微结构的变化
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     EFFECT OF CHILLING ON LEAF CELLULAR ULTRASTRUCTURE OF TWO SUMMER-LAWN GASSES
     低温胁迫对两种暖季型草坪草叶片细胞超微结构的影响
  “叶片细胞”译为未确定词的双语例句
     The Responses of Mungbean Leaf Water Potential (ψ_w),Osmotic Potential (ψ_s) and Cell Pressure Potential (ψ_p) to Water Deficits
     绿豆叶片细胞水势(ψ_w)、渗透势(ψ_s)及压力势(ψ_p)对水分胁迫的反应
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     The explants of laminae from Tagetes erecta were cultivated. The results showed that the buds could be directly induced from laminae after cultivating them on MS+1.2mg/L 6-BA+0.9mg/L NAA medium for 7 days.
     取万寿菊植株生长状态的叶片组织作为外植体,无菌条件下接种于MS+1.2mg/L 6-BA+0.9mg/LNAA的培养基中培养7d,叶片细胞逐渐增殖培养生成芽苗;
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     Contrarily, the average of relative cell membrane penetrability of root and leaf of Trticum aestivumdropped by 7.96% and 8.33%, those of Zea mays decreased only 2.50% and 1.62%, respectively.
     小麦叶片细胞质膜透性平均下降8.33%,根系下降7.96%,玉米叶片平均下降1.62%,根系下降2.50%。
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     Pathogenesis-related(PR)proteins in the intercellular fluids of three pepper cultivars leaves were induced after treatments with 1 000 μg·mL-1 β-aminobutyric acid(BABA).
     经1000μg. mL-1β-氨基丁酸(β-aminobutyric acid,BABA)诱导处理后,3个辣(甜)椒品种叶片细胞间液的蛋白质电泳分析表明,寄主植物经BABA处理3d后病程相关蛋白(PR)被诱导产生。
短句来源
     Principle of cell almightiness was the basis of plant tissue-culture. The explants of corn lamina were cultivated in the experiment. Results showed that the buds could be directly induced from lamina after inoculating them on MS+1.0 mg/L 6-BA+0.5 mg/L NAA medium with 8 days.
     以玉米植株生长叶片组织作为外植体,无菌条件下接种于MS+1.0mg/L6-BA+0.5mg/LNAA培养基,培养8d,叶片细胞逐渐增殖培养生成芽苗;
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  leaf cells
Ultrastructure of the Leaf Cells of Cereals Affected by Cereal Rhabdoviruses
      
In addition, these observations showed that salt ions are localized in the central vacuole of leaf cells (via pinocytosis) and also in small cytoplasmic vacuoles of leaf and root cells.
      
Single-membrane vesicles detected in vacuoles of the leaf cells resemble in appearance the vacuolar vesicles in the coleoptile apoptotic cells described earlier (Bakeeva, L.
      
Effect of root heating on the tolerance of barley leaf cells and ultrastructure of chloroplasts and mitochondria
      
The adjacent leaf cells accumulated metal ions more slowly.
      
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  leaf cell
The stimulation of nitrate reductase activity in vivo at the temperature range 37-40°C provides an evidence for the increase in the availability of reductants in the cytosolic compartment of the leaf cell.
      
We showed that the pear psylla ingests from all leaf cell types, but that xylem, phloem and bundle sheath cells are more acceptable for ingestion than non-vascular tissues.
      
Contrastingly, the DNA contents of leaf cell nuclei of the regenerated protoclones ranged from 1C to 5C including 60% 2C plants.
      
dodecandra L'Herit) produce ribosome-inactivating proteins which are sequestered in leaf cell walls.
      
In vitro regeneration patterns of Platycerium bifurcatum leaf cell suspension culture
      
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  leaf cellular
Despite the elongated shape of the colonies imposed by the leaf cellular structure, the MFD remained constant with scale.
      
Hyperaccumulation of Cadmium and Zinc in Thlaspi caerulescens and Arabidopsis halleri at the Leaf Cellular Level.
      


The main shoot of the winter wheat,Nongda 183,develops 13—14 leaves.As a rule,each leaf with its various types of cells,as well as the area of the leaf blade and sheath show a series of changes from simple to complex in morphology and dimension when the rank of the leaf rises from the lowest to the flag leaf. Leaves from the lower ranks,including all the autumn leaves,are consisting of 80% of 1—3 linked cells in the mesophyll.Leaves from the higher ranks(spring leaves)have more multi-linked cells(from 3-links...

The main shoot of the winter wheat,Nongda 183,develops 13—14 leaves.As a rule,each leaf with its various types of cells,as well as the area of the leaf blade and sheath show a series of changes from simple to complex in morphology and dimension when the rank of the leaf rises from the lowest to the flag leaf. Leaves from the lower ranks,including all the autumn leaves,are consisting of 80% of 1—3 linked cells in the mesophyll.Leaves from the higher ranks(spring leaves)have more multi-linked cells(from 3-links up).The flag leaf is consisted 77% of mesophyll cells having more than 4-links. The higher ranked spring leaves have more types of cells,besides the mesophylls, than those from the lower ranks. The sheath cells of high ranked leaves and the green glume and lemma cells of the spike have also the peak,dale,isthmus and link formation. The spring sown vernalized winter wheat spiked with its 7th leaf,the cell com- ponents of which is equivalent to the flag leaf(the 13th)of the autumn sown plant. In the spring sown unvernalized winter wheat,the cell components of its 7th leaf are far behind in delvelopment when compared with the vernalized and the regular autumn sown plant,although all of them were grown and mature in the same en- vironment. The meaning of these changes in the structure and morphology of the cells,the cells in the glume and lemma,and the ontogeny of the main shoot with their environ- ment are discussed.

冬小麦农大183植株的主茎在其个体发育过程中共生长13—14片叶片。随着叶位的上升,各叶片的叶面积,叶鞘面积及各叶片所有各类型细胞的形态和结构互有差异,并反映出逐步复杂化的规律,尤其是叶肉细胞;在返青以前的低叶位叶片中,它们的叶肉细胞,三环以下的占80%左右,在高叶位的叶片中,随着叶位上升,多环细胞的类型随着增多。在旗叶中,四环以上的细胞占77%,并常看到多环而又有分枝的细胞。高叶位的叶鞘、小穗的护颖和稃片等绿色组织中的绿色细胞都有着和叶肉细胞相同的峰谷腰环(图1)形态。高叶位的表皮细胞形态也比低叶位的表皮细胞复杂。经过低温春化处理的冬小麦春播植株的第七叶片(旗叶)叶肉细胞类型的组合与秋播植株旗叶(第十三叶)一样。未经春化处理的春播植株第七叶虽然生长时间及生态环境和上述二种植株的旗叶相同,但其叶片细胞的形态和组合却和年前秋播植株的越冬前低叶位叶片相同。这说明了叶片细胞的组成主要决定于内在的生长发育规律。

It was successful to induce pollen plants from the in vitro anthers of 56 chromosome hybrid of Triticum vulgare×Agropyron glaucum cultured on the MS medium supplemented with auxin, coconut milk and mononucleotide. The pollen plants such obtained were mostly albinos, partly green and white mosaic and only three of them were normally green. Chromosome counts made in the root tip cells revealed that most pollen plants were haploids (2N = 28), however, one of them possessing 27 chromosomes only was monosomici haploid...

It was successful to induce pollen plants from the in vitro anthers of 56 chromosome hybrid of Triticum vulgare×Agropyron glaucum cultured on the MS medium supplemented with auxin, coconut milk and mononucleotide. The pollen plants such obtained were mostly albinos, partly green and white mosaic and only three of them were normally green. Chromosome counts made in the root tip cells revealed that most pollen plants were haploids (2N = 28), however, one of them possessing 27 chromosomes only was monosomici haploid and it showed prominent changes in its morphological characteristics. The chromosome behaviour in the course of meiosis of the sporocytes was found that local homology existed in 1-8 pairs of chromosome. The bivalents were rod-shaped with terminal conjugation, ultrastructural observations on the leaf cells of albino plant demonstrated the existence of the plastids, however, the development of the plastids was limited and could not form chloroplasts with normal lamella structure. The possible origin of the karyotype of the 56 chromosome hybrid was discussed.

离体培养具56个染色体的小麦(Triticum vulgare)和冰草(Agropyron glaucum)杂种的花药,在附加生长素、椰乳和单核苷酸的MS培养基上,成功地诱导出花粉植株。多数植株为白化体,一部分是绿白条纹体,仅有3株是正常的绿色体。检查根尖细胞染色体证明绝大多数植株为单倍体(2n=28),但发现其中1株是单缺体,只有27个染色体,并出现形态特征上的深刻变化。观察花粉母细胞减数分裂时染色体的行为发现,在1—8对染色体间有局部同源性,二价体表现为棒形端部结合。对白化体叶片细胞的亚显微结构研究表明,细胞中存在质体,但质体的发育受到阻碍,不能形成具有正常片层结构的叶绿体。讨论了具56个染色体的杂种其核型的可能形成过程。

This paper deals with the function of chloroplasts from the mesophyll cells of winter wheat Nongda 311 as a continuation of our previous studies on the leaf cells of the same species. Samples of leaves were taken for electron microscopy and photosynthetic deter- minations:It is found that the ultrastructures of chloroplasts from different ranks of leaves very in complexity in an ascending order.The stroma of chloroplasts from the upper-ranked cells are heavily stained as shown by their high content of ribosomes...

This paper deals with the function of chloroplasts from the mesophyll cells of winter wheat Nongda 311 as a continuation of our previous studies on the leaf cells of the same species. Samples of leaves were taken for electron microscopy and photosynthetic deter- minations:It is found that the ultrastructures of chloroplasts from different ranks of leaves very in complexity in an ascending order.The stroma of chloroplasts from the upper-ranked cells are heavily stained as shown by their high content of ribosomes and high consistaney of the mobile phase.The grana lamellae in the flag leaf chloroplasts are thickly stacked against a few disks in the grana of 5 th leaf.The rate of Hill reac- tion and photophosphorylation of the flag leaf is higher than that of the 5th leaf. The mitochondria in the flag leaf cells are large and numerous as compared to these from the 5th leaf.The respiration of the flag leaf is nearly two fold higher than that of the 5th leaf. To sum up our data,we see that the close association between structure and func- tion has gone through a series of changes from the simple to the complex.It is our task to reveal the changes in detail and take measures to regulate the changes,for it is of practical importance.

本文是小麦叶片细胞研究的继续。通过电子显微镜观察和光合功能的测定发现:冬小麦植株个体发育过程中,各层次叶片叶肉细胞叶绿体的超微结构随叶位的逐渐上升而渐趋于复杂化,其光合功能也相应地增强,至旗叶最为显著。具体表现为基粒片层(grana lamella)、基质片层(stroma lamella)的数目随叶位上升而增多;基质也随之渐浓;Hill 反应和光合磷酸化活性也相应地提高很多。此外,高叶位叶片特别是旗叶,在叶绿体旁出现的线粒体较低叶位的多,其呼吸强度比第五叶相应地高出几乎一倍。上述结构和功能的密切相关及其从简单到复杂这一自然规律的揭示,对采取措施加以调节控制,是具有重要意义的。

 
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