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

結(jié)果表明欧美片aaaaaaaa片，諸葛菜花粉很難在3種類型油菜的柱頭上黏附和萌發(fā)18禁免费观看黄网站，同時在花粉黏附的部位及其附近柱頭乳突細胞內(nèi)產(chǎn)生大量胼胝質(zhì)；萌發(fā)的少量花粉粒黄片无码A级，其花粉管生長遲緩iGAo视频网在线观看一级欧美，且發(fā)生嚴重扭曲、腫脹等畸形現(xiàn)象婷婷五月综合视频精品，從而導致其進入柱頭也比較困難艹到高潮网站；少數(shù)花粉管能穿過柱頭進入花柱，但時常有異常胼胝質(zhì)沉積在花粉管中黄片@126.com。

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.

通過分期播種18禁看网站，進行了光溫敏自交不親和材料HE97親和性轉(zhuǎn)換區(qū)間的研究，依據(jù)田間跟蹤調(diào)查葉齡及室內(nèi)考種研究了HE97親和性轉(zhuǎn)換區(qū)間的光溫臨界值性色一区二区，結(jié)果表明：1日最低溫度是影響HE97自交不親和性的主要原因美女免费的黄色视频，親和性轉(zhuǎn)換區(qū)間在16.5℃～18.1℃之間。2通過HE97自交和姊妹交以及將HE97與鄭58作為雙親91黄色视频在线免费看，各自的花絲一分為二一级香蕉电影，分別正反交，授粉后4個小時分別取其花絲進行固定欧美www视频在线观看、染色欧美大屌插逼，觀察花粉管的伸長情況，根據(jù)結(jié)實率與花粉管伸長的對應關(guān)系久久久久国产一级男女毛片高清版，結(jié)果發(fā)現(xiàn)觀察到花粉管的對應植株收獲到了種子免费看黄色毛片网站播放，而沒有觀察到花粉管的對應植株結(jié)實率極低或沒有結(jié)實，本研究把HE97初步劃為孢子體自交不親和類型澳门黄色三级视频。3以HE97為母本一级免费黄片，87-1為父本，按4母：1父行比中文字幕最新，通過花粉直感效應研究天然異交率中文字幕欧美，結(jié)果母本HE97結(jié)實良好(62%)，其中自交粒占70%在线亚洲欧美专区国产，異交粒占30%操我国产，結(jié)合花絲切片觀察表明，親和花粉的萌發(fā)及受精會導致落在同一果穗柱頭上不親和花粉的萌發(fā)不再受抑制男人爽插女人的网站在线看。

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.

結(jié)果表明国产美女裸体一区二区三区久久久体验视频，細胞色素c和ATP混合處理的四個組合都能抑制離體花粉萌發(fā)和花粉管生長久久鲁一鲁做，并且引起了花粉管核DNA的降解，不同處理中雙核久久精品这里热有精品6、單核及無核花粉管所占比率存在明顯差異欧美男女性生活视频免费无遮挡一级黄；高濃度ATP雖能抑制花粉萌發(fā)和花粉管生長，但不能引起花粉管核DNA的降解日韩AⅤ无码毛片精品。

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.

在受精過程中欧美性爱自拍拍，助細胞吸引花粉管向雌配子體生長，并接受花粉管長入細胞程序死亡助細胞中亚洲视频官网在线观看。接下來的花粉管停止生長和花粉管頂端破裂釋放出2個精細胞的過程可能也依賴于助細胞一区视频资源在线观看视频。

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.

采用花粉液體培養(yǎng)法研究了植物生長調(diào)節(jié)物質(zhì)對梨花粉萌發(fā)和花粉管生長的影響，結(jié)果表明：較低濃度的赤霉素97人人操人人爱、三十烷醇人人干人人做天天射、吲哚乙酸及2，4-D均能促進花粉萌發(fā)和花粉管生長欧美亚洲日韩免费在线视频，而超過一定濃度時卻起抑制作用人成在线网站，最適宜于花粉萌發(fā)和花粉管生長的赤霉素濃度為50～300mg/L，三十烷醇為3～100mg/L激情AAAA片，吲哚乙酸為5～25mg/L2020人人摸人人操，2，4-D為5～10mg/L亚洲欧美日韩一区在线。

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℃国产高清黄色网、25℃時插插99，花柱S-RNase抑制自花花粉萌發(fā)和花粉管生長的程度極顯著大于抑制異花花粉的程度澳门人人摸人人操；花柱S-RNase降解自花花粉管RNA的程度也明顯大于降解異花花粉管RNA的程度；溫度升高到35℃時日韩精品片在线观看网站，自花和異花間花粉萌發(fā)和花粉管生長被花柱S-RNase抑制的程度不存在顯著性差異丰满少妇A级毛片野外；花柱S-RNase降解自花和異花花粉管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.

在液體培養(yǎng)基中添加從果梅'月世界'花柱中純化的S-RNase欧美性爱视频自拍偷拍，并分別于10℃国产一级黄网站、25℃和35℃條件下培養(yǎng)自花、異花花粉天美自拍乱码在线播放视频，測定不同培養(yǎng)時間后的花粉萌發(fā)率和花粉管生長長度免费精品国产高清在线观看；離體條件下進行果梅花柱S-RNase降解花粉管RNA反應后，用瓊脂糖凝膠電泳檢測不同溫度條件下自花黄色的免费、異花花粉管RNA被降解的程度九色草免费电影。

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.

通過聯(lián)苯胺—過氧化氫反應法和苯胺藍熒光法觀察了柱頭的可授性、花粉在柱頭的黏附久久久打桩机、萌發(fā)及花粉管的生長情況国产人人爱，結(jié)果表明：非洲菊柱頭發(fā)育初期就具有可授性国产视频一区二区三区污视频，可授期達12d ；雜交和自交相比熟女乱伦亚洲国产视频，雜交的花粉比較容易黏附第一区第二区日韩、花粉管進入柱頭比較容易，二者存在花粉黏附數(shù)量和花粉管進入數(shù)量的差異黄频网站在线免费观看。

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

此外日韩精品无码专区中文字幕，Ca〓載離子體A〓亦抑制花粉萌發(fā)和花粉管生長，但與Verapamil和Co〓的效應不同www簧片网址视频，花粉管生長過程對A〓比花粉萌發(fā)敏感得多av超碰av超碰人人爱，表明花粉管中Ca〓極性分布對花粉管生長的重要性。

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.

結(jié)果表明：MG132顯著抑制青扦花粉萌發(fā)和花粉管生長日韩AAAAAA免费毛片，并導致花粉管形態(tài)異常bbixxcon在线观看，主要表現(xiàn)為花粉管亞頂端出現(xiàn)液泡化，并且液泡隨著培養(yǎng)時間的延長而擴大到整個花粉管日本特级黄色大片天天高潮免费看，花粉管瀕臨死亡国内99在线；而DMSO以及非蛋白酶體抑制劑E-64不產(chǎn)生類似結(jié)果；半薄切片結(jié)果表明欧美草草操在线视频，MG132處理后不僅花粉管細胞質(zhì)發(fā)生液泡化女人18毛多水多在线观看，生殖細胞也發(fā)生液泡化；FTIR分析進一步表明www又湿又大，MG132處理后日韩美女福利禁止观看网站，花粉管頂端的細胞壁蛋白和果膠質(zhì)含量大幅度下降。

pollen tube：花粉管

它和用孢子繁殖的蕨類植物最大的不同有三點:第一,產(chǎn)生花粉粒(pollen grains)和花粉管(pollen tube). 花粉母細胞或稱小孢子母細胞經(jīng)減數(shù)分裂產(chǎn)生單核的花粉粒,不脫離母體萌發(fā)成若干細胞的花粉粒,此時由風或其它昆蟲等傳粉,

pollen tube：百合花粉管

花粉培養(yǎng):pollen culture | 百合花粉管:Pollen tube | 花粉形態(tài):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：花粉管通道技術(shù)

花粉管通道技術(shù)(pollen tube pathway)是Zhou[1]等人提出 DNA片段雜交理論之后設(shè)計的自花授粉后外源DNA導入植物的轉(zhuǎn)基因技術(shù). 隨后,謝道昕(1991) [9]將2個Bt殺蟲基因?qū)朊藁ㄆ贩N中,后代經(jīng)分子雜交證明殺蟲基因已整合到棉花基因組中,

pollen tube pathway：花粉管通道

空氣花粉污染: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. | 花粉萌發(fā)率:pollen germination capacity

pollen tube nuclei：花粉管核

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

pollen tube passage：花粉管通道

首次穿越時間:First passage time | 花粉管通道:pollen tube passage | 流道結(jié)構(gòu):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

精母細胞 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