花粉管

词组短语

pollen tube

与花粉管相关的网络例句 [注：此内容来源于网络，仅供参考]

Sometimes, a few of pollen tubles could enter into styles through stigmas, but abnormal callose could deposit in the tubes.

结果表明，诸葛菜花粉很难在3种类型油菜的柱头上黏附和萌发，同时在花粉黏附的部位及其附近柱头乳突细胞内产生大量胼胝质；萌发的少量花粉粒，其花粉管生长迟缓，且发生严重扭曲、肿胀等畸形现象，从而导致其进入柱头也比较困难；少数花粉管能穿过柱头进入花柱，但时常有异常胼胝质沉积在花粉管中。

The conversion boundary of self-incompatibility was researched by sowing by stage. Sunshine of day and temperature was studied critically by investigating leafage and researching traits indoors. The results showed that the daily minimum temperature was the principal factor of affinity conversion and the affinity conversion boundary was 16.5~18.1℃.HE97 was primarily regard as self-incompatible line in this research. The method was by inbreeding and sib HE97, Half the silk of HE97 and Zheng58. Inbreeding and cross have been done simultaneously. The extending condition of pollen tube was observed by dying the silk after pollinating 4 hours. The individuals with pollen tube were observed having seeds, while the individuals without pollen tube were observed having few seeds or no seeds. So this study regard HE97 as sporophytic self-incompatibility .The planting ration of female parent HE97 and male parent 87-1 was 4:1.The nature cross-pollination was studied by the theory of endosperm xenity, the study show that the setting percentage of HE97 was 625%, in which the seed in self was 70% and the seed in hybrid was 30%. This was consistent with the study of silk anatomy structure, then come to the same conclusion: compatible pollen germination and fertilization can stimulate the self-incompatible pollen germination and fertilization in the same corn cob.

通过分期播种，进行了光温敏自交不亲和材料HE97亲和性转换区间的研究，依据田间跟踪调查叶龄及室内考种研究了HE97亲和性转换区间的光温临界值，结果表明：1日最低温度是影响HE97自交不亲和性的主要原因，亲和性转换区间在16.5℃～18.1℃之间。2通过HE97自交和姊妹交以及将HE97与郑58作为双亲，各自的花丝一分为二，分别正反交，授粉后4个小时分别取其花丝进行固定、染色，观察花粉管的伸长情况，根据结实率与花粉管伸长的对应关系，结果发现观察到花粉管的对应植株收获到了种子，而没有观察到花粉管的对应植株结实率极低或没有结实，本研究把HE97初步划为孢子体自交不亲和类型。3以HE97为母本，87-1为父本，按4母：1父行比，通过花粉直感效应研究天然异交率，结果母本HE97结实良好(62%)，其中自交粒占70%，异交粒占30%，结合花丝切片观察表明，亲和花粉的萌发及受精会导致落在同一果穗柱头上不亲和花粉的萌发不再受抑制。

The results showed that the four treatments of cytochrome c supplemented with ATP all suppressed the pollen germination and pollen tube growth, and induced nuclear DNA degradation, different treatments with different ratios of double nuclei, single nucleus, and no nuclei. Treatment with heavy concentration of ATP also restrained pollen germination and pollen tube growth, but can not induced nuclear DNA degration.

结果表明，细胞色素c和ATP混合处理的四个组合都能抑制离体花粉萌发和花粉管生长，并且引起了花粉管核DNA的降解，不同处理中双核、单核及无核花粉管所占比率存在明显差异；高浓度ATP虽能抑制花粉萌发和花粉管生长，但不能引起花粉管核DNA的降解。

During the fertilization of angiosperms, the degenerated synergid induces a pollen tube to enter and break the pollen tube to release two sperm cells, which fuse with the egg and central cell.

在受精过程中，助细胞吸引花粉管向雌配子体生长，并接受花粉管长入细胞程序死亡助细胞中。接下来的花粉管停止生长和花粉管顶端破裂释放出2个精细胞的过程可能也依赖于助细胞。

The results of studying the effects of several plant growth regulating substances on pollen germination and tube growth in pear (Pyrus serotina Rhed.) by cultivating pollens in liquid media showed that GA3,TRIA,IAA and 2,4D stimulated pollen germination and tube growth when pollen was cultivated in their lower concentration media.

采用花粉液体培养法研究了植物生长调节物质对梨花粉萌发和花粉管生长的影响，结果表明：较低浓度的赤霉素、三十烷醇、吲哚乙酸及2，4-D均能促进花粉萌发和花粉管生长，而超过一定浓度时却起抑制作用，最适宜于花粉萌发和花粉管生长的赤霉素浓度为50～300mg/L，三十烷醇为3～100mg/L，吲哚乙酸为5～25mg/L，2，4-D为5～10mg/L。

The degradation of pollen tube RNA in vitro by stylar S-RNase at different temperatures was performed to detect the extent of degradation using the agarose gel electrophoresis. The germination and tube growth of self-pollen and the RNA of self-pollen tube were inhibited and degraded significantly greater than cross-pollen respectively at 10℃ and 25℃, but no significant difference when the temperature rose to 35℃.

10℃、25℃时，花柱S-RNase抑制自花花粉萌发和花粉管生长的程度极显著大于抑制异花花粉的程度；花柱S-RNase降解自花花粉管RNA的程度也明显大于降解异花花粉管RNA的程度；温度升高到35℃时，自花和异花间花粉萌发和花粉管生长被花柱S-RNase抑制的程度不存在显著性差异；花柱S-RNase降解自花和异花花粉管RNA的程度也相似。

Adding purified stylar S-RNase from Prunus mume cultivar 'Gessekai' to liquid medium, for cultivating self- and cross-pollen at temperatures lot, 25℃ and 35℃, respectively, then determining the rate of pollen germination and the length of pollen tube after different periods of cultivating time.

在液体培养基中添加从果梅'月世界'花柱中纯化的S-RNase，并分别于10℃、25℃和35℃条件下培养自花、异花花粉，测定不同培养时间后的花粉萌发率和花粉管生长长度；离体条件下进行果梅花柱S-RNase降解花粉管RNA反应后，用琼脂糖凝胶电泳检测不同温度条件下自花、异花花粉管RNA被降解的程度。

The pollen living ability declined with time prolonging and the best condition for pollination was 22~28℃and fresh pollen appearing .By means of benzidine- hydrogen peroxide reaction and aniline blue fluorescence method, showed that the stigma receptivity could teach to 12 days since flowering. Compared with self pollination, the pollen was easily adhered into sigma and the pollen tube was easily entered into style in cross pollination experiment.

通过联苯胺—过氧化氢反应法和苯胺蓝荧光法观察了柱头的可授性、花粉在柱头的黏附、萌发及花粉管的生长情况，结果表明：非洲菊柱头发育初期就具有可授性，可授期达12d ；杂交和自交相比，杂交的花粉比较容易黏附、花粉管进入柱头比较容易，二者存在花粉黏附数量和花粉管进入数量的差异。

In addition, Ca〓 ionophore A〓 impeded pollen germination and tube growth.

此外，Ca〓载离子体A〓亦抑制花粉萌发和花粉管生长，但与Verapamil和Co〓的效应不同，花粉管生长过程对A〓比花粉萌发敏感得多，表明花粉管中Ca〓极性分布对花粉管生长的重要性。

It is showed that MG132 significantly reduced the germination rate and tube growth. Furthermore, MG132 treatment lead to vacuolization occurred both in tube cytoplasm and generative cell. While DMSO and non-proteasome inhibitor E-64 do not have similar effects. FTIR analysis revealed that MG132 treatment markedly reduced the contents of wall-bound proteins and pectin at the apex of tube.

结果表明：MG132显著抑制青扦花粉萌发和花粉管生长，并导致花粉管形态异常，主要表现为花粉管亚顶端出现液泡化，并且液泡随着培养时间的延长而扩大到整个花粉管，花粉管濒临死亡；而DMSO以及非蛋白酶体抑制剂E-64不产生类似结果；半薄切片结果表明，MG132处理后不仅花粉管细胞质发生液泡化，生殖细胞也发生液泡化；FTIR分析进一步表明，MG132处理后，花粉管顶端的细胞壁蛋白和果胶质含量大幅度下降。

与花粉管相关的网络解释 [注：此内容来源于网络，仅供参考]

pollen tube：花粉管

它和用孢子繁殖的蕨类植物最大的不同有三点:第一,产生花粉粒(pollen grains)和花粉管(pollen tube). 花粉母细胞或称小孢子母细胞经减数分裂产生单核的花粉粒,不脱离母体萌发成若干细胞的花粉粒,此时由风或其它昆虫等传粉,

pollen tube：百合花粉管

花粉培养:pollen culture | 百合花粉管:Pollen tube | 花粉形态:Pollen morphology

pollen tube nucleus：花粉管核

pollen tube 花粉管 | pollen tube nucleus 花粉管核 | pollination 授粉

pollen tube pathway：花粉管通道技术

花粉管通道技术(pollen tube pathway)是Zhou[1]等人提出 DNA片段杂交理论之后设计的自花授粉后外源DNA导入植物的转基因技术. 随后,谢道昕(1991) [9]将2个Bt杀虫基因导入棉花品种中,后代经分子杂交证明杀虫基因已整合到棉花基因组中,

pollen tube pathway：花粉管通道

空气花粉污染:Airborne pollen pollution | 花粉管通道:pollen tube pathway | 花粉植株:plantlets obtained from pollen

pollen tube pathway：花粉管通道法

花粉壁蛋白:pollen wall protein | 花粉管通道法:Pollen tube pathway. | 花粉萌发率:pollen germination capacity

pollen tube nuclei：花粉管核

pollen tube 花粉管 | pollen tube nuclei 花粉管核 | pollination 传粉,传粉作用

pollen tube passage：花粉管通道

首次穿越时间:First passage time | 花粉管通道:pollen tube passage | 流道结构:the structure of flow passage

boundary pollen tube：花粉管

花粉不育:pollen sterility | 花粉管:boundary pollen tube | 花粉植株:pollen plant

sperm nucleus;male nucleus：精核;(花粉或花粉管中的)雄核

精母细胞 sperm mother cell;spermatocyte | 精核;(花粉或花粉管中的)雄核 sperm nucleus;male nucleus | 精子入卵 sperm penetration