Pollen grains germinated soon after pollination. Pollen tubes grew first into the intercellular space of branched penniform stigma and then through the intercellular space of transmitting tissue into the top of the ovary, further penetrating the ovary wall and primine to the micropyle. Green fluorescence was found in both pollen and pollen tubes.

結(jié)果表明：授粉后99热在线只有精品99，花粉隨即萌發(fā)，花粉管進人羽毛狀柱頭分支結(jié)構(gòu)的細胞間隙你懂网站在线观看，繼續(xù)生長于花柱至子房頂部的引導組織的細胞間隙中一级特大黄色视频，而后進入子房，在子房壁與外珠被之間的縫隙中向珠孔方向生長欧美变态另类熟妇第一区，花粉與花粉管均具有明顯的綠色熒光高清一级做a爱过程免费视频。

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，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)和花粉管生長国内一级特黄大片录像，并且引起了花粉管核DNA的降解99久久精品国产免看国产一区，不同處理中雙核、單核及無核花粉管所占比率存在明顯差異日韩无网站；高濃度ATP雖能抑制花粉萌發(fā)和花粉管生長成年肉动漫在线观看无修，但不能引起花粉管核DNA的降解。

Four testing methods to detect the pollen viability of cucumber were being compared. The results indicated that I-KI staining method and acetic red dyeing were not suitable to judge the pollen viability of cucumber. Tetrazolium method can be used but the error is oversize. By and large, the Germination in vitro method was an efficient, stable and simple way to judge the pollen viability of cucumber. The component of culture medium is 10% sucrose+ 100mg/L H_3BO_3. If inoculated intraday, collect pollen of fresh abloom flower at 6:00 and if inoculated at the second day, collect before dark.

比較了4種常用的花粉活力測定方法——I-KI染色法97人人澡人人爽人人爱、醋酸洋紅染色法国产污污自拍视频网站、TTC染色法和離體萌發(fā)法，認為I-KI染色法和醋酸洋紅染色法不適于測定黃瓜花粉生活力91精品国产无线乱码在线观看，TTC染色法雖適用但誤差較大亚洲中文久久久久久精品国产麻豆，綜合考慮各項因素，確定離體萌發(fā)法是最準確黄色网站入口免费观看、簡便www欧日精品www、穩(wěn)定的測定黃瓜花粉活力的方法。

In this observational study, 65 children were treated with SLIT with a build-up phase of 11 days, culminating in a peak dose of 300 IR, and followed by a maintenance phase of 300 IR three times weekly. There were 51 boys and 14 girls; age range was 38 to 80 months (median age, 60 months). Allergens used were house dust mites in 42 patients, grass pollen in 11, olive pollen in five, Parietaria pollen in four, and cypress pollen in three patients. Adverse reactions and changes in the treatment schedule were compared in children aged 38 to 60 months vs those aged 61 to 80 months.

在這項觀察性試驗中A片黄片免费看，65位接受SLIT的兒童在11天的適應(yīng)期后国产粉嫩00福利福利福利，將劑量逐漸調(diào)整到最高300 IR精品一二，接著以每周3次，每次300 IR的劑量持續(xù)接受治療久久精品黄色；試驗中包括51位男童與14位女孩自拍偷拍亚洲专区图片，年齡介于38至80個月（平均年齡為60個月）；其中有42位病患以塵蹣8050午夜一级无码、11位以花粉天天舔天天干、5位以橄欖花粉、4位以墻草看免费的口交黄片、3位以絲柏作為過敏原可以直接免费看黄的网站；年齡介于38至60個月的兒童，與61至80個月的兒童分成兩組比較不良反應(yīng)發(fā)生機率與治療療程的改變国产玩弄老太婆。

In this observational study, 65 children were treated with SLIT with a build-up phase of 11 days, culminating in a peak dose of 300 IR, and followed by a maintenance phase of 300 IR three times weekly. There were 51 boys and 14 girls; age range was 38 to 80 months (median age, 60 months). Allergens used were house dust mites in 42 patients, grass pollen in 11, olive pollen in five, Parietaria pollen in four, and cypress pollen in three patients. Adverse reactions and changes in the treatment schedule were compared in children aged 38 to 60 months vs those aged 61 to 80 months.

在這項觀察性試驗中国产一级一级理论片A片一区二区，65位接受SLIT的兒童在11天的適應(yīng)期后，將劑量逐漸調(diào)整到最高300 IR操操操b，接著以每周3次欧美色欧美精品极品视频，每次300 IR的劑量持續(xù)接受治療；試驗中包括51位男童與14位女孩免费看一级A片在线看手机，年齡介於38至80個月（平均年齡為60個月）不卡AV在线免费；其中有42位病患以塵蹣、11位以花粉国内自拍和偷拍、5位以橄欖花粉黄片免费链接、4位以墻草、3位以絲柏作為過敏原91.com麻豆；年齡介於38至60個月的兒童999视频有精品视频在线观看，與61至80個月的兒童分成兩組比較不良反應(yīng)發(fā)生機率與治療療程的改變。

Pollen grains germinated soon after pollination. Pollen tubes grew first into the intercellular space of branched penniform stigma and then through the intercellular space of transmitting tissue into the top of the ovary, further penetrating the ovary wall and primine to the micropyle. Green fluorescence was found in both pollen and pollen tubes.

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Through comparative analysis on the pollen exine ornamentation of Lycoris we think that the pollen characters of Lycoris is relative steady and basically uniform, the shape of pollen grains are all long sphericity, all species have reticulate ornamentation, but there are large varieties between species in Lycoris on these aspects such as the pollen size , Finely reticulate ornamentation or coarsely reticulate ornamentation,psilate muri or curve muri,having spinulose or not and the spinulose position.

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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℃.

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The sac structure projected through the pollen aperture possesses the typical nature of transfer cell, i. e complex lybrinthian wall ingrowth and abundant mitochondria, RER, dicotysomes and ribosomes under the wall. Its outer surface is closely related to the tapetal protoplast. The accumulation of storaged material in pollen start at the area near the apertures. Above restults indicate the pollen apertures may be the"door"from where nutrition flows into pollen in P. hortorum.

絨氈層物質(zhì)向花粉粒的短途運輸明顯的表現(xiàn)在花粉的萌發(fā)孔區(qū)黄色毛片ww，一方面形成向外突起的囊腔，另一方面在這里具有發(fā)達的壁迷宮女同一区二区三区，而且迷宮下具豐富的線粒體jiuse901，RER和高爾基體等細胞器，此外花粉內(nèi)貯藏物的大量積累首先從萌發(fā)孔附近開始以及萌發(fā)孔處與絨氈層有緊密接觸都說明天竺葵花粉萌發(fā)孔可能是物質(zhì)進入花粉的&門戶&免费性爱a片在线。

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.

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