The results indicated that the treatment of irradiation restrained the growth and differentiation of protocorm, especially to roots.The LD50 is 67.23Gy, because the protocorm is a integrate embryoids and higher tolerance was found. Ploidy analysis showed that most of aberrant seedlings go with the change of DNA and they were not euploid. When the plants trearted by irradiation, some of aberrant seedlings appeared stem forfication, and leaves appeared chlorophyll-deficient or green-white.,probably due to some genes' expression or closing.

結(jié)果表明：輻照處理對種胚原球莖的生長和分化有抑制作用亚洲啪啪网站，尤其是對根的抑制更為明顯；由于種胚原球莖的完整性好，耐受性強(qiáng)亚洲综合色图一区，其輻照半致死劑量(LD50)為67.23Gy；流式細(xì)胞分析表明在线亚洲黄色中文字幕视频，大多數(shù)外部形態(tài)發(fā)生改變的植株其細(xì)胞內(nèi)DNA的倍性發(fā)生了改變综合精品视频一区二区，出現(xiàn)相當(dāng)多的非整倍體www.4438日韩无码；此外，輻照產(chǎn)生的變異苗出現(xiàn)莖分叉免费射黄视频、葉片缺綠或白綠相間等現(xiàn)象无码囯产精品一区二区免费，可能是由于某些基因的表達(dá)與關(guān)閉引起的。

There were the radicle polarity and the plumule polarity in differentiation of the first somatic embryogenesis.

此外人人摸人人干人人操，體細(xì)胞胚的發(fā)生和分裂是不同步的亚洲图片第一页，往往在同一張切片上既可看到單個的胚性母細(xì)胞，又可見到二細(xì)胞国产午夜三级黃色、四細(xì)胞以致多細(xì)胞原胚并存的多樣化原胚細(xì)胞群體h网站在线看免费。

The microscopical observation showed that embryonal suspensor masses developed firstly into early stage proembryos,then into late stage proembryos.

顯微觀察表明，來自原生質(zhì)體的胚性胚柄細(xì)胞團(tuán)(ESM：embryogenic suspensor mass)一级WWW，經(jīng)早期原胚(ESP：early stage proembryos)階段形成了后期原胚(LSP：late stage proembryos)黄色片一级免费的。

The results indicated, somatic embryos of Lycium barbarum L. mostly came from single embryogenic cell. Finaly, embryogenic cell grew into plant after bicellular, tricellular and multicellular stage.

結(jié)果發(fā)現(xiàn)，枸杞的體細(xì)胞胚是單細(xì)胞起源欧美一级a大片免费看u，經(jīng)胚性細(xì)胞wwwA片，二、三男人色色网站、四和多細(xì)胞原胚国产精品亚洲黄色录像，到球形胚，最后發(fā)育成完整植物国产一级无码黄片。

In addition, CK/CH/LDL/97 I strain was attenuated by serial 115 passages in embryonated chicken eggs (note: the 115th passage were completed in our laboratory by prof. Rong Jun-gong).

同時(shí)將IBV CK/CH／LDL97Ⅰ／97株通過雞胚連續(xù)傳115代致弱成一株免疫原性良好的疫苗株(備注：F115的雞胚傳代由本實(shí)驗(yàn)室榮駿弓研究員完成)av毛在线看麻豆醉地。

The results showed that the non-embryonic callus were cultured on the MS medium contained 4.0 mg · L-1 2,4-D and 0.5 mg · L-1 6-BA, embryogenic cells appeared in it. Then the single embryogenic cells formed a proembryo composed of many cells through cell division.

結(jié)果表明，非胚性愈傷組織轉(zhuǎn)入到MS + 4.0 mg · L-1 2日韩大学生无码视频，4-D + 0.5 mg · L-1 6-BA培養(yǎng)基培養(yǎng)后福利xxxx视频，愈傷組織中先出現(xiàn)一些胚性細(xì)胞；然后單個胚性細(xì)胞分裂形成一個由多細(xì)胞組成的原胚亚洲中文久久精品无码一区二E。

The friable embryogenic callus with small grains and without proembryo formation was screened in the process of continuous subcultures for 4~6 times on the medium with low content of sucrose from embryogenic cultures induced from immature embryos in litchi (Litchi chinensis Soon.). The well-scattered embryogenic cell suspensions could be rapidly established from the friable embryogenic callus in 2 liquid initial MS media respectively supplemented with 2,4-D 2 mg/L or 2,4-D 2 mg/L, KT1 mg/L and AgNO3 5 mg/L shaking at 100~120 r/min within 10-14 days.

荔枝幼胚誘導(dǎo)的胚性培養(yǎng)物在低糖條件下連續(xù)繼代4~6次左右你懂的视频在线免费，可篩選到顆粒細(xì)小、不含原胚的松散型胚性愈傷組織国产高中生视频；以這種松散的胚性愈傷組織作為起始材料在线免费看avav，在附加2，4-D 2mg/L或2日韩乱伦一区二区三区，4-D 2mg/L一级欧美黄色网站、KT1 mg/L、AgNO3 5mg/L的MS液體啟動培養(yǎng)基上振蕩培養(yǎng)（100~120 r/min）10~14 d一本A片，即可建立起分散性良好的胚性懸浮細(xì)胞系免费国产黄网站在线观看。

The reseach on activity changes of SOD, POD and CAT during the somatic embryogenesis of Y35 showed:(1) The activty of SOD was from 52.98 to 133.20 U·g-1·h-1, and remained a rising trend after early single embryo forming, this revealed that SOD might be positively correlated to the differentiation of embryogenic cell and the development of somatic embryo.(2) The activty of POD was from 0.05 to 0.50 U·mg-1·min-1, ascended firstly and desceded later, and was highest in embryogenic callus and lowest in late single embryo , this revealed that POD might be positively correlated to the division and differentiation of proembryo mass, while negatively correlated to the development of PEMⅢto late single embryo.(3) The activty of CAT was from 0.86 to 2.81 U·mg-1·min-1, showed an up-down-up trend, reaching to the highest peak at the time of early embryo formating and decreasing to the lowest at the time of early cotyledonary embryo formating, this revealed that CAT might be positively correlated to the development of early single embryo, while negatively correlated to the formation of middle single embryo and early cotyledonary embryo.The changes in activty of SOD, POD and CAT indicated these three antioxidant enzymes coregulated the differentiation and development of embryogenic cells during Larix somatic embryogenesis.4. Differentially expressed cDNA libraries of the stages of proembryo mass and somatic embryo maturation were successfully constructed by suppression subtractive hybridization.

對Y35體細(xì)胞胚胎發(fā)生過程中抗氧化酶活性變化的研究顯示：(1)SOD活性在52.98~133.20 U·g-1·h-1之間，并在早期單胚形成后一直保持上升的趨勢曰韩美女乱婬免费视频网站，表明其與胚性細(xì)胞的分化及體細(xì)胞胚的發(fā)育均具呈正相關(guān)亚洲欧美激情小说另类；(2)POD活性在0.05~0.50 U·mg-1·min-1之間国产黄色性爱视频，呈現(xiàn)出先下降后升高的趨勢，在胚性愈傷組織中最高中文字幕黄色福利视频，而在后期單胚形成時(shí)降至最低91精品啪，表明其與原胚團(tuán)的分裂和分化呈正相關(guān)，但與PEMⅢ向后期單胚的發(fā)育呈負(fù)相關(guān)国产图片大全综合视频；(3)CAT活性在0.86~2.81 U·mg-1·min-1之間一级做a爰片久久毛片A片高潮，表現(xiàn)出升-降-升的變化趨勢，在早期單胚形成時(shí)升至最高308AV.COM，在早期子葉胚形成時(shí)降至最低亚洲色AⅤ性色在线观看，表明其與早期單胚的發(fā)育呈正相關(guān)，而與中期單胚和早期子葉胚的發(fā)育呈負(fù)相關(guān)成人黄色在线播放。

The embryogenic cell first divided into multicellular proembryos,then globular embryoid,pearshaped embryoid,long embryoid,scutiform embryoid and mature embryoid.

胚性細(xì)胞繼續(xù)分裂形成多細(xì)胞原胚很污的毛片视频网址一区，經(jīng)球形胚、梨形胚九九视频这里都是精品免费线看线看、長形胚日韩毛片基地在线高清观看、子葉分化期到成熟胚，其發(fā)生的胚狀體與單子葉合子胚形成具有相似的過程一级做a爰片性色刺激。

In the experiment, three thawing methods, such as washing by water at 40℃, exposing at the room temperature of 25℃, and washing by tap water were used to estimate the effects of thawing methods on the survival rate after cryopreservation. The results showed that the relative survival rate of the calli with proembryos was higher than that of the general calli; and that different thawing methods had the same effect on the survival rate of longan calli by cryopreservation.

結(jié)果表明myfamily欧美性爱视频，具有原胚分化的胚性愈傷組織保存后的存活率明顯高于普通胚性愈傷組織；40℃溫水浴黄色首页入口在线观看、25℃左右室溫和自來水沖洗等3種不同的化凍方式對龍眼胚性愈傷組織玻璃化超低溫保存后的存活率具有同樣的效果日韩有码中文字幕强奸乱伦播放器。

endoderm：內(nèi)皮層

中胚層細(xì)胞通過胚孔或原溝進(jìn)入胚胎內(nèi)部,沿著內(nèi)皮層(endoderm)以阿米巴蟲的方式向前延伸,并聚集在發(fā)育的前腸兩邊,形成兩個分隔的團(tuán)聚體. 兩個團(tuán)聚體形成雙層管狀物. 該管的內(nèi)壁變成內(nèi)心膜,外壁變成肌肉性的心肌. 當(dāng)內(nèi)胚層具備前腸溝的形式時(shí),

primitive endoderm：原始內(nèi)胚層

內(nèi)細(xì)胞團(tuán)形成后,首先分化成原始內(nèi)胚層(primitive endoderm),接著分化形成外胚層(epiblast)的生殖層(germlayer),它是未來男亚洲美女黄视视频永久久久久、女性生殖細(xì)胞的前體. 隨著胚胎發(fā)育,這些細(xì)胞遷移至生殖嵴. 當(dāng)原腸胚形成(gastrulation),ICM分化多能性消失,

melanoblast：成黑素細(xì)胞

黑色素的形成,在脊椎動物,是在從來自神經(jīng)冠的成黑素細(xì)胞(melanoblast)分化所成的黑色素胞及網(wǎng)狀色素細(xì)胞內(nèi)發(fā)生的. 在兩類,從原腸胚期到神經(jīng)胚期,由于形成體的誘導(dǎo)的影響,所形成的神經(jīng)冠細(xì)胞分散地存在著,因體內(nèi)各部中胚性組織環(huán)境的不同,

Sneaking through：漏逸

腫瘤漏逸 (sneaking through) 7. 增強(qiáng)抗體 (enhancing antibody) 二,單項(xiàng)選擇題 1. 癌胚抗原 A. 只存在于某種腫瘤細(xì)胞表面 B. 在所有腫瘤中均可以查到 C. 可以用作腫瘤的特異性診斷標(biāo)志 D. 結(jié)合在細(xì)胞表面,不易脫落 E. 對宿主無免疫原性 2.

blastogenetic：胚原性的

blastodermal 胚盤的 | blastogenetic 胚原性的 | blastogenic 母細(xì)胞化的

blastogenetic：胚細(xì)胞樣轉(zhuǎn)變的 胚原性的

blastofmillet 粟瘟 | blastogenetic 胚細(xì)胞樣轉(zhuǎn)變的 胚原性的 | blastogenic 母細(xì)胞化的

blastogenic：母細(xì)胞化的

blastogenetic 胚細(xì)胞樣轉(zhuǎn)變的 胚原性的 | blastogenic 母細(xì)胞化的 | blastogenicfactor 母細(xì)胞形成因子

mutagen：突變原

家 族性腫瘤的瘤細(xì)胞的形成,必須有胚系細(xì)胞缺陷附加有體細(xì)胞 缺陷,后者在DNA復(fù)制時(shí)發(fā)生,多種突變原(mutagen)如放射性 物質(zhì)射線日韩精品每天在线更新、化學(xué)物質(zhì)氮芥、環(huán)磷酰胺(烷化劑)久久人妻精品99、多環(huán)芳香碳 氫化合物與之有關(guān).