The microspore was more like a tetrahedron, whilethe polar was more like a triangle. The number of microspore in every anther wasbetween 2600～3600, so the amount of pollen was quite large that it was propitiousto spread and pollination. P/O was 8088 and the breed system was singleheterosexual copulatoryb. The viability of pollen was normally above 50%. The testof pollen culture showed that the viability of pollen was up to the tiptop under thehigher temperature and lower humidity (38℃,40%),while it was weakest under thelower temperature and lower humidity (16℃,40%).The OCI is 4, and the breedsystem was belong to autocopulation. If it was heterosexual copulatory, there must beintermediums for pollination. It was recorded there were more than 40 species ofinsects on the anthotaxy or followers of Malania Oleifera. Under different weather,different living environments and different plants the frequency and rush hour of theinsects to visit the followers were different. Actions of different kinds of insect werealso different. According to the results of the observation, the form of fluid and seedof Malania Oleifera mostly rely on the action of insect pollination, especially thebees.

蒜頭果的花序為聚傘形花序不卡一级片，有小花8～10朵狼友偷拍视频，小花較胁賹率印女人十八片；按花粉大小等級劃分，蒜頭果的花粉粒屬于小的范圍青草不雅三级在线观看；花粉粒呈近四面體国产一级特黄在线视频，極面為近三角形：每粒花藥所含的花粉粒在2600～3600粒之間欧美日韩高清性色生活片，花粉量較大久青草视频，有利于花粉的傳播和授粉；胚珠比值為8088欧美要精品，繁育系統(tǒng)為專性異交類型四虎成人最新影院网址大全；花粉生活力一般在50％以上；在不同溫度濕度條件下測得蒜頭果花粉的生活力在高溫低濕(38℃，40％)的條件下最高美女性爱网站，在低溫低濕(16℃91av视频在线观看，40％)的條件下最低；雜交指數(shù)值為4，繁育系統(tǒng)自交親和，異交为爱搞激情视频，需要傳粉者日本欧美一级看；記錄到的訪花昆蟲有40余種，訪花昆蟲的訪花頻率及高峰時間不同殴美视频二区性爱，不同種類的昆蟲的訪花行為也是各有所異；從觀察的結果看，蒜頭果的種實的形成大多數(shù)依賴于傳粉昆蟲的活動日韩手机福利写真网站，其中主要是蜂類。

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.

通過分期播種欧美另类激情视频在线观看，進行了光溫敏自交不親和材料HE97親和性轉(zhuǎn)換區(qū)間的研究日韩一区二区A片免费观看，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，結果表明：1日最低溫度是影響HE97自交不親和性的主要原因中文字幕国产无码，親和性轉(zhuǎn)換區(qū)間在16.5℃～18.1℃之間亚洲A片在线观看片不卡。2通過HE97自交和姊妹交以及將HE97與鄭58作為雙親，各自的花絲一分為二日本欧美国产激情，分別正反交在线精品91青草国产在线观看，授粉后4個小時分別取其花絲進行固定、染色我想看黄色一级高清无码视频，觀察花粉管的伸長情況国产高清色色，根據(jù)結實率與花粉管伸長的對應關系，結果發(fā)現(xiàn)觀察到花粉管的對應植株收獲到了種子99riav1com，而沒有觀察到花粉管的對應植株結實率極低或沒有結實j国产在线，本研究把HE97初步劃為孢子體自交不親和類型。3以HE97為母本中文字母强奸乱论，87-1為父本国产又大好爽免费视频，按4母：1父行比，通過花粉直感效應研究天然異交率曰批全过程免费视频下载，結果母本HE97結實良好(62%)鲁鲁鲁网站，其中自交粒占70%，異交粒占30%激情偷乱人伦文学，結合花絲切片觀察表明西安一级毛片，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。

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.

結果表明超碰在线免费公开，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)和花粉管生長久久久精品区，并且引起了花粉管核DNA的降解中文无码性爱，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二道本欧美黄片；高濃度ATP雖能抑制花粉萌發(fā)和花粉管生長日本女子婬荡视频一区二区三区，但不能引起花粉管核DNA的降解。

When there was only one pollen donor, gene flow frequency was in direct proportion to the pollen density.(8) The strong pollen competition from self-pollination might contribute to the very low outcrossing rates and gene flow frequencies in rice varieties.(9) The study of rice pollen flow showed that with the artificial disturbance of pollen dispersal there were pollen grains detected at 90 m from the pollen sources.

9對水稻花粉流的研究顯示国产JizzJizz毛片，在趕粉的實驗條件下日韩福利片影音先锋在线播放网站视频，于遠離花粉源的90 m處仍然檢測到花粉分布，回歸分析顯示水稻的花粉可以傳播100 m以上中文字幕日韩三级片一区二区，甚至在遠離花粉源的200 m的距離處仍然可能有花粉分布国产国语对白Av在线，這表明水稻的花粉可以傳播非常遠的距離。

There are three copies of R fragment in the S mt-genome, and each copy contains two closely adjacent open reading frames: orf355 and orf77. Among these three copies two BamHI fragments were cloned, and the sequence analysis showed that cox1 and cox2 gene lies upstream of the R region in each fragment, respectively. However, they locate in different strands and head to head with R. In this study, we found that:(1) The expression of cox1 and cox2 is not affected by the transcription of R region;(2) The two copies of R region transcribe in large amount in the microspores, and produce transcripts of 1.6kb and 2.8kb, respectively, in the sterile microspores; However, the abundance of these two transcripts is reduced in the fertility restored microspores, realized through the mRNA decay, and this reduction occurs at the uninucleate microspore stage;(3) In the sterile microspores, the 5 terminus of the 1.6kb transcript contains a palindrome region that can fold into a stem-loop.

本研究發(fā)現(xiàn)：(1) cox1和cox2的轉(zhuǎn)錄沒有受到R區(qū)轉(zhuǎn)錄的影響丁香综合视频露脸；(2)兩個拷貝的R區(qū)在在不育花粉中高豐度表達久久久久久a亚洲欧洲AⅤ，其轉(zhuǎn)錄本大小分別為1.6kb和2.8kb；而在育性恢復的花粉中污污网站在线播放一区二区，這兩個轉(zhuǎn)錄本的豐度被大大降低国产一级最新视频在线，進一步分析表明這一結果是通過mRNA分子的降解途徑來實現(xiàn)的，此降解過程發(fā)生在單核花粉期久久精品亚洲区二区三区欧美福利；(3)在不育花粉中亚洲一区精品无码黄，1.6kb轉(zhuǎn)錄本的5′末端具有一段可形成莖環(huán)結構的迴文對稱序列，而在可育花粉中农村片人人操，其5′末端短缺了9個堿基91在线欧美超碰；(4)在不育花粉和育性恢復的花粉中，R區(qū)轉(zhuǎn)錄本的加尾位點都集中位于一個3′莖環(huán)結構之后亚洲色拍一区二区三区；(5)不管是在不育花粉還是育性恢復的花粉中av不卡在线，orf77區(qū)域內(nèi)均在第52位和100位核苷酸處發(fā)生了不同頻率的C向U的編輯，從而形成UGA終止密碼中文字幕专区；(6)不管是orf55-orf77的成熟轉(zhuǎn)錄本還是轉(zhuǎn)錄前體分子，都已被加上了Poly尾巴中国AV黄色网站，表明已進入降解途徑青娱精品在线p；在以上實驗結果的基礎上，本研究對S型CMS花粉育性的恢復機理進行了如下推測：在不育花粉和育性恢復的花粉中香港一级婬片A片AA，orf77區(qū)域內(nèi)均發(fā)生了終止編輯中国一级免费A片，即由RNA編輯產(chǎn)生了提前終止密碼子。

Based on the investigation and analysis of the Cupressus funebris seed orchard at Laoshan Island in the Qiandao Lake, Zhejiang province, the ecological characteristics of the male cone, female cone and pollen have been studied.

本文以浙江省千島湖姥山林場柏木種子園為對象毛片毛片毛片高清免费，對柏木球花及花粉的生態(tài)學特性進行了研究結果表明18禁无码免费久久免费看，柏木的雌雄球花在樹冠中呈成層分布；降雨時中文无码亚洲色偷偷A片，雄球花對花粉具有保護功能国家一级A片一级毛片；柏木花粉體積小，重量輕，花粉量大国产免费看黄色网站，花粉的散發(fā)受氣溫色呦呦在线播放、風力、相對濕度和氣壓的綜合影響中国美女网站，其中氣溫是主導因子色色的视屏，風左右著花粉的傳播，降雨加速花粉的沉降www.樣。

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在线观看国产黄瓜影视网站免费，結果表明：較低濃度的赤霉素、三十烷醇6969在线观看、吲哚乙酸及2玖玖爱免费视频，4-D均能促進花粉萌發(fā)和花粉管生長，而超過一定濃度時卻起抑制作用又色又大又粗又硬又爽动态视频，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插进去插快点视频，三十烷醇為3～100mg/L，吲哚乙酸為5～25mg/L美女双腿张开被操出白浆，2日韩欧美一区二区在线观看，4-D為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℃免费看小姐操逼网站、25℃時色色www,com，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；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的程度岛国免费人人操；溫度升高到35℃時97国产a片观看视频，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；花柱S-RNase降解自花和異花花粉管RNA的程度也相似日韩黄色网站中文字幕。

The results showed that pollen in differentfamily or genus of plant have different requirements for phytohormones.The basicmedium of pollen culture supplemented with 2ppm NAA and GA_3 can promotes thepollen germination in Cruciferae.It has been proved that basic medium supplemtedwith 2ppm IAA and GA_3 has special effect on pollen germination and elongation ofpollen tube of woody plant in Rosace...

結果證明：不同科屬的植物花粉對激素的要求不同丝袜激情在线一区，如在花粉萌發(fā)的基本培養(yǎng)基上加2ppm的NAA和GA_3混合液對十字花科植物花粉有促進作用，加2ppm的IAA和GAa_3混合液對薔薇科木本植物花粉萌發(fā)和花粉管伸長有顯著效果特黄大片AAAA级毛片，而葫蘆科植物的花粉在基本培養(yǎng)基上只要有無機鹽離子就可以萌發(fā)无码,色,不卡,AAA，激素仍有促進花粉萌發(fā)的作用。

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.

結果表明：MG132顯著抑制青扦花粉萌發(fā)和花粉管生長亚洲免费播放片，并導致花粉管形態(tài)異常国产又爽又粗又黄视频，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黄视频网站观看地址点，花粉管瀕臨死亡爱情岛论坛自拍亚洲品质福利；而DMSO以及非蛋白酶體抑制劑E-64不產(chǎn)生類似結果；半薄切片結果表明十八岁免费网站，MG132處理后不僅花粉管細胞質(zhì)發(fā)生液泡化欧美黄色视频久久，生殖細胞也發(fā)生液泡化全部免费A级毛片免费看；FTIR分析進一步表明，MG132處理后九九精品视频在线播放平台，花粉管頂端的細胞壁蛋白和果膠質(zhì)含量大幅度下降黄色片视频A急片。

pollen digram：花粉圖式

pollen culture 花粉培養(yǎng) | pollen digram 花粉圖式 | pollen emission 花粉放出

extine：花粉外壁

F1花粉壁 花粉壁分為花粉外壁(extine)和花粉內(nèi)壁(intine)兩個部分. 花粉外壁較厚,主要成分是孢粉素,質(zhì)地堅硬,能抗酸乱伦无码高清、堿和抗生物分解,因此可在地層中找到古代植物遺留的花粉. 花粉外壁的部分孢粉素物質(zhì)來自于絨氈層,

exine; extine：(花粉粒)外壁

(花粉;胞子的)內(nèi)膜 Endosporium; intine | (花粉粒)外壁 exine; extine | (花粉粒的)外壁 extine

intine：花粉內(nèi)壁

F1花粉壁 花粉壁分為花粉外壁(extine)和花粉內(nèi)壁(intine)兩個部分. 花粉外壁較厚,主要成分是孢粉素,質(zhì)地堅硬,能抗酸色又色综合、堿和抗生物分解,因此可在地層中找到古代植物遺留的花粉. 花粉外壁的部分孢粉素物質(zhì)來自于絨氈層,

pollen sac：花粉囊

每一花藥通常由4個或2個花粉囊(pollen sac)組成,左右對稱分開,中間以藥隔(connective)相連. 花粉囊內(nèi)產(chǎn)生許多花粉粒(pollen grain). 花粉成熟后,花粉囊裂開花粉粒散出. 總體概況 雄蕊是花的雄性生殖器官,

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：花粉花粉

3 6蜂花粉花粉(Pollen)是種子植物體上的雄性生殖細胞. 蜂花粉系蜜蜂采自植物花朵雄蕊的花粉,營養(yǎng)成份全面,除含蛋白質(zhì)、脂肪国产精品久久久久久亚洲按摩、碳水化合物外,還富含氨基酸综合视频一区、多種維生素和活性酶以及核酸、礦物元素美女任人插黄色视频、胡蘿h素等,是一種天然的營養(yǎng)源.

pollen grain：花粉

少數(shù)種類如錦葵科植物的花藥只有2個花粉囊. 花粉囊是產(chǎn)生花粉(pollen grain)的囊狀結構,藥隔是花藥中部連接花粉囊的部分. ...

pollinosis：花粉癥

指出了秋天的花粉癥有的主要病因是豚草花粉;直至1873年Blackley利用凡士林玻片曝片進行大氣中花粉調(diào)查和采用花粉浸液作特異性皮試,才首次在臨床上證實了枯草熱的發(fā)生與花粉過敏有關,并提出花粉癥(Pollinosis)這一新診斷名稱取代

pollen count：花粉計數(shù),花粉統(tǒng)計

pollen comb ==> 花粉梳 | pollen count ==> 花粉計數(shù),花粉統(tǒng)計 | pollen extract ==> 花粉浸液