mature embryo 中文意思是什麼
mature embryo
解釋
成熟胚-
Embryological studies reveal that megaspore and such cells as egg, synergid and antipodals in mature embryo sac initiate the division of forming haploid plants through embryogenesis or callus formation
胚胎學觀察揭示大孢子與胚囊內的卵細胞、助細胞和反足細胞均有可能在培養中啟動分裂，通過胚狀體或愈傷組織形成單倍體植株。 -
The cotyledons of the mature embryo are either green, yellow or chalky yellow.
成熟胚的子葉是綠色，黃色或淺黃色。 -
But cluster buds can not be obtained from the callus of stems and embryo. it has likely relate to the inner structure of callus. lt is very difficult to get embryoid from mature embryo and its inducing rate is very low, and only 11. 5 % in the media containing n6 + ba 1. 5mg / l + naa 0. 5mg / l + sucrose 30g / l + agar 8g / l + ac 2g / l which is the best media for gingo tissue culture
而莖段和胚誘導的愈傷組織基本上沒有叢生芽發生，這可能和不同愈傷組織的內部結構有關。成熟胚的胚狀體誘導率較低，誘導相當困難，在n6 bai -
During male gametogenesis, the spermatogonia became primary spermatozoa through mitosis, and then became fourth equivalent cytoplasm, round sperm through meiosis. after maturation, they participated in embryo development with the mature oocyte through fertilization. but in female gametogenesis, the primary oocyte formed a matured egg and 1 ~ 3 polar bodies ( pb )
雄性動物精子發生過程中精原細胞最後一次有絲分裂形成二倍體精母細胞后，經過兩次減數分裂形成了四個含等量細胞質、圓形的精子細胞，最終發育成四個具有正常生理功能的精子，與成熟卵母細胞受精后參與胚胎發育。 -
Now it has been one of the most important aquatic products in the freshwater cultivation. however, this prawn ca n ' t survive at a water temperature lower than 14c, which has seriously limited its cultivation expanding. in order to obta in a new breed of this prawn with increased cold - resistance, we investigated the cloning of a synthetic gene ( sbwafp ) based on the primary sequence of the mature spruce budworm ( choristoneura fumiferana ) antifreeze protein ( sbwafp ) and the integration of sbwafp into the embryo genomes of giant freshwater prawn by spermatophore - microinjection ( smi ), a sperm - mediated gene transfer technique
本研究的特色和創新之處在於，針對羅氏沼蝦不耐低溫，但體型相對較大，精莢明顯的特點，首次將目前已知具有最強抗凍活性的雲杉卷葉蛾（ sprucebudworm ， choristoneurafumiferana ）抗凍蛋白（ sbwafp ）基因（ sbwafp ） ，通過精子介導的轉基因技術整合到羅氏沼蝦的胚胎中，以期培育出耐低溫的羅氏沼蝦新品系。 -
After thymus transplantation, the embryo ' s thymus has trunk cell that comes from the embryo ' s yolk bag, embryo liver and marrow, it excretes a great deal of thymus hormone which change lymphocyte into mature t lymphocyte through multiplication and differentiation, then it help to turn b cell into serous cell, the quantity of the serous cell increases, the antibody that it produces also increases, that is the content of iga, igm and igg is increased
而移制胎兒胸腺后，由於胎兒胸腺內有來自胎兒卵黃囊、胚肝和骨髓的幹細胞，並能分泌大量胸腺素，促進淋巴細胞在該處增殖、分化為成熟t淋巴細胞，繼而輔助b細胞活化成為漿細胞，漿細胞數量增加，產生的抗體量增加，即igg ， igm ， iga含量增加。 -
Stem ce11 factor is a multipotent cytokine which is found in recent years, fol1owing research in vitro and in vivo found that scf and its receptors have familiar regu1ation function in mature brain with in embryo and developing period
幹細胞因子是近年來發現的一種多功能細胞因子。近年來研究發現，幹細胞因子（ stemcellfactor ， scf ）及其受體對胚胎期及成年後神經系統生長發育起調控作用，但其作用機制尚不明了。 -
The somaclonal variation of regeneration plant derived from mature embryo of perennial ryegrass ( lolium perenne l. were analyzed with rapd makers
摘要以多年生黑麥草成熟胚誘導獲得的再生植株為材料，利用rapd標記方法對其體細胞變異進行了研究。 -
Our country practiced this classified administration system for drugs not long ago ; the otc drug market is not mature or perfect ; it is at its embryo stages in comparison with the advanced countries in the world
在這個背景下，筆者試圖從市場營銷組合理論出發，結合我國otc藥品市場的特點，探討我國otc藥品市場營銷策略，以促進我國otc藥品市場的發展和成熟。 -
Studies on transformation of indica rice with bt - toxin gene mediated by agrobacterium tumefaciens precultured immature embryo and callus derived from young panicle, immature embryo and mature embryo were used as acceptor for genetic transformation mediated by agrobacterium tumefaciens, the transformation rate of the above acceptor was investigated respectively. the results showed that immature embryo after precultured for 4 ~ 6d was the best. in respect to the concentration of agrobacterium tumefaciens when calli were cotransformated in medium yeb, to agrobacterium tumefaciens eha 105, od value of 0. 8 was the best
採用農桿菌介導法將bt毒蛋白基因導入水稻同樣以上述兩種秈稻為主要研究材料，比較了分別以預培養的幼胚和幼穗、幼胚、成熟胚來源的愈傷組織作為轉化受體的愈傷組織轉化頻率，結果表明預培養4 6天的幼胚最適宜作為農桿菌介導轉化的受體；其次是來源於幼胚和成熟胚的生長狀態良好的胚性愈傷組織。 -
Although mature eggs and sperm normally have only half the genetic material of a typical body cell, to prevent an embryo from having a double set of genes following conception, eggs halve their genetic complement relatively late in their maturation cycle
在正常的狀況下，為了避免受精后胚胎含有雙份基因，成熟的卵子和精子各攜帶體細胞一半的遺傳物質，但是卵子只有在快要成熟的時候才會減半其遺傳物質。 -
Mature embryo - derived calli of japonica rice ( oryza sativa l. ) cultivars nipponbare were transformed using agrobacterium tumefaciens strain agl1 carrying a binary vector pcas04 harboring the marker gene, neomycin phosphotransferase gene ( nptii ), driven by a promoter from the ubiquitin gene in maize, a promoterless p - glucuronidase gene near to the left border of t - dna for trapping gene and a strong promoter, rice actin - gb promoter, near to the right border of t - dna as activation tagging. in this system, co - cultivation was simplified, special selection stages and pre - regeneration stage were omitted, the whole process was almost under continuous light at 30 ? except co - cultivation and transgenic plants began to generate only after 7 weeks calli were induced
在一步轉化系統中，光照高溫條件下培養的水稻愈傷組織從誘導開始經過4周時間就可以達到轉化實驗的要求，並且簡化、優化了整個共培養過程，省去了一篩、二篩和預分化步驟，只用7周的時間就可以初步得到再生轉化植株；共191塊愈傷組織得到125塊抗性愈傷組織，轉化頻率達到65 . 4 ，最後共得到99棵獨立來源的再生植株，抗性愈傷組織再生頻率達到79 . 2 。 -
When mature embryo was used as explant, as for above three lines of wheat, the optimize concentration of 2, 4 - d for inducting calli and embryonic calli is 4. 0 mg / l
35 ，而安農92484隻能達到16 sl 。在所試的品種中對于成熟胚在2 ， 4d質量濃度為4 -
Important changes in the embryo or larva will probably entail changes in the mature animal.
胚胎與幼體的重要的變異，或將引起動物成體的變異。
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