The ultrastructural changes during the development of sieve element companion cell complex (SE/CC complex) in Populus deltoides were investigated using electronic microscopy. The result showed that SE and CC tome from the same secondary phloem mother cell. The development of sieve element went through three stages, i. e. immature, mature, and degenerate stage. In immature stages the sieve element presented radial expansion, cell wall thickening, and production of sieve plastid and P-protein. The cytoplasma selectivly autolysed in mature stage. At the same time, karyoplasm was dispersed, and nuclear envelope was not clear, or karyoplasm was disorgnized, and nuclear envelope was clear. The karyopalsm finally turned into P-protein. In degenerate stage, the cytoplasm completely disappeared, and the function was lost.

利用電鏡技術研究美洲黑楊次生韌皮部篩管和伴胞發(fā)育過程中細胞超微結構的動態(tài)變化，觀察到篩管和伴胞由同一個次生韌皮部衍生細胞分裂分化形成篩管約發(fā)育歷經(jīng)未成熟期伊人草在线视频、成熟期和衰退期的變化未成熟期篩管分子表現(xiàn)為細胞的徑向擴展日本色一区二区三区、壁的增厚、篩管質(zhì)體和P-蛋白質(zhì)的產(chǎn)生欧美激情第欧美精品；成熟期篩管分子細胞組分發(fā)生選擇性自溶乱伦亚洲色图片，細胞核核質(zhì)彌散狀，核膜不清晰18岁禁看网站在线看，或核膜清晰而核物質(zhì)降解欧美在线黄片小视频，最后細胞核完全解體轉化為P-蛋白質(zhì)類的物質(zhì)；衰退期篩管分子細胞質(zhì)完全解體消失国产一区二区精品久久久v，失去功能国产日韩欧美午夜福利网站。

Its full potential only develops after contact with air. Therefore, it is advisable to decant the wine.

芭內(nèi)洛是意大利的頂級酒之一，精品產(chǎn)區(qū)皮爾蒙釀造免费黄色福利网站网址，成熟期比較晚在线超碰cao，需要6年以上的成熟期，一般裝瓶后4年方可飲用亚码激情，是一款珍藏級的好酒一级国产高清免费观看。

The results indicated that 0.3% brackish water could be used for growing melon without any yield losses,but fruit yield reductions were significant(P.01) during straw period and flor-fruit period and(P.01) during fruitage at 5,7 and 9 g/L.The salinity improved quality during fruitage and decreased quality b...

結果表明，在不同生育時期3 g/L咸水處理對甜瓜產(chǎn)量均無顯著影響98在线视频，在開花坐果期和伸蔓期至果實成熟期人人摸人人搞人人草，5欧美激情动态图，7av男人的天堂综合网，9 g/L咸水處理的單果重均極顯著低于對照，而在果實發(fā)育期各咸水處理的單果重均顯著低于對照一级a片操逼逼免费观看视频；在甜瓜果實發(fā)育期以前久久精品视频还得看这里，不同濃度咸水處理使甜瓜品質(zhì)稍有降低，而后期處理則能提高甜瓜果實的品質(zhì)，其中可溶性蛋白含量的變化不大日韩久久精品视频；伸蔓期至果實成熟期持續(xù)咸水處理對甜瓜營養(yǎng)生長有明顯的抑制作用www.renrenav.com，其中對株高的影響表現(xiàn)得尤為突出。

The results show that small world network model could explain the big change of intensiveness and connectedness in forming process. And individual selection value function could explain the stable intensiveness, connectedness in growing and mature process. Combined the both, the characteristics of the whole process could be reflected.

研究表明自拍偷拍色综合，小世界網(wǎng)絡模型模擬的集群網(wǎng)絡具有集群形成期網(wǎng)絡整體密集性和連通性劇烈變化的特征一级A片特爽高潮视频一，而個體選擇價值函數(shù)模型可以解釋集群網(wǎng)絡的成長期、成熟期的密集性和連通性趨于穩(wěn)定的特征国产乱在线观看完整版视频，將2種演化規(guī)則相結合麻豆视频免费，則可以反映集群網(wǎng)絡從形成期到成熟期的各生命周期特征。

Laser operations of anterior capsulotomy 16 cases of mature stage cataract were performed before extracapsuIar cataract extraction.

其中16例成熟期白內(nèi)障囊外摘除術前做激光前囊膜切開術免费人成视频在线观观看网站；14例未成熟期白內(nèi)障在做前囊膜切開術的同時做透明皮質(zhì)乳化術黄片gb。

Albendazole and oxfendazole both inhibited the pathways of anaerobic glycolysis, partial inversed tricarboxylic acid cycle of Taenia Solium oncosphere, immature and mature cysticerci in vitro and immature and mature cysticerci in vivo in certain degree. They enhanced decomposing in fat, amino acid, and xanthine metabolism. On the other hand, absorption of glucose was hindered.

阿苯噠唑和奧芬噠唑?qū)w外培養(yǎng)豬六鉤蚴，未成熟期和成熟期豬囊尾蚴91性爱网站，以及體內(nèi)發(fā)育未成熟期和成熟期豬囊尾蚴的糖無氧分解途徑两人在线看A片，丙酮酸羧化支路與逆向三羧酸循環(huán)途徑均有一定程度抑制作用，代償性促進糖異生及蛋白質(zhì)午夜影院性，脂類和核酸分解途徑免费观看国产嫖妓视频，葡萄糖吸收受阻。

In fuits, flavonoides showed higher content in young fruits stage and fruit mature period, coumarins and polyshaccharides in fruit developmemt time and mature period, oleanolic acid in young fruit stage and fruit overripen stage.

果實中黃酮含量高峰期出現(xiàn)在幼果期和果實成熟期最新国产区、香豆素和多糖含量高峰期出現(xiàn)在座果期和果實成熟期AAAA电影网，齊墩果酸含量高峰期出現(xiàn)在幼果期和果實過熟期。

In leaves, flavonoids showed higher ammount in fruits premature time and fruit overripen period, coumarins in fruit development stage and ripening stage, polyshaccharides in leaf development time and fruit mature period, oleanolic acid in fruit mature period

沙棘葉片中黃酮類成分含量高峰期出現(xiàn)在果實停止生長時期和過熟期农村妇女户外HDXXXX，香豆素含量高峰期出現(xiàn)在座果期和果實成熟期日本欧美亚洲另类，多糖在展葉期和果實成熟期出現(xiàn)含量高峰，齊墩果酸在果實成熟期出現(xiàn)含量高峰

But combined application of high N fertilizes and straw modifier can increases water use efficiency of winter wheat significantly.

水免费一看一级毛片视频、氮及秸稈改良劑能改善冬小麥返青和成熟期土壤水分和硝態(tài)氮含量伊人超碰完整版一区二区，返青期0100 cm土層水分變化劇烈，成熟期反之黄色网站视频免费体验看。

The details is described as below: mixed with water and evenly atomized, 30-50g/mu for rice seedling, jointing, heading, flowering and filling stages; mixed with water and evenly atomized, 30-50g/mu for wheat seedling, stooling, heading, flowering, maturing stages; 30-50g/mou for corn seedling, big-horn tasseling, and maturing stages, mixed with water and evenly atomized, 26-32 days of drought resistance period.

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at maturity：(動物)成熟期

under warranty 在保修期內(nèi) | at maturity (動物)成熟期 | baby boom 生育高峰時期

maturation period：成熟期

continuous tomato steamer (打漿前)番茄連續(xù)蒸煮器[罐] | maturation period 成熟期 | temperate mixed forest 溫帶針闊混交林

maturation phase：成熟期

創(chuàng)面愈合過程之成熟期(Maturation phase)然而,當創(chuàng)面被再生的上皮細胞完全覆蓋后,創(chuàng)面的愈合過程并沒有完全結束. 這就是創(chuàng)面的成熟期. 因為新生的肉芽組織和上皮細胞還需要進一步分裂分化h片欧美日韩、轉型,使其力量增強,才最后使創(chuàng)面得以完全愈合.

Mezzanine stage：[投資] 后期;成熟期

Mezzanine fund [投資] 后期資金;中間資金;夾層資金 | Mezzanine stage [投資] 后期;成熟期 | MFN 最惠國待遇

Mezzanine stage：[投資] 后期;成熟期 MFN 最惠國待遇

Mezzanine fund [投資] 后期資金;中間資金;夾層資金 | Mezzanine stage [投資] 后期;成熟期 MFN 最惠國待遇 | Micro capitalization 微型股

Mezzanine stage：后期;成熟期

Mezzanine fund 后期資金;中間資金;夾層資金 | Mezzanine stage 后期;成熟期 | MFN 最惠國待遇

ripeness：成熟;成熟度;成熟期

ripener催熟劑;成熟槽 | ripeness成熟;成熟度;成熟期 | ripening成熟

vesting period：期權成熟期

expiration date 截止日 | vesting period 期權成熟期 | holding period 期權持有期

ripening stage：成熟期

現(xiàn)階段:present stage | 成熟期:ripening stage | 成熟期:Maturity stage

dough stage：黃熟期;玉米成熟期;玉米蠟熟期

dough sheeter 軋面機 | dough stage 黃熟期;玉米成熟期;玉米蠟熟期 | dough time 面團發(fā)酵時間