regeneration frequency 中文意思是什麼

regeneration frequency 解釋
再生頻率
  • regeneration : n. 1. 再生，新生。2. 悔悟。3. 改造，革新。4. 回收。5. 【化學】交流換熱（法）；【物理學】正回授[反饋]放大。
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  1. In this study, the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants. the effects of different basic mediums, different hormone kinds and their concentrations ratios, different sucrose concentrations on calli induction, buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied. on the base of high frequency regeneration system, the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays

    本實驗首先以生長良好的四倍體刺槐優株上當年生新梢的帶腋芽莖段為外植體，研究了在四倍體刺槐高頻再生體系的建立過程中不同基本培養基、不同激素濃度及其配比、不同蔗糖濃度對愈傷組織的誘導、芽的分化及生根的影響；然後在得到高頻再生體系的基礎上，通過農桿菌介導法轉化甜菜堿醛脫氫酶（ badh ）基因，以gus染色組織分析為依據探討了影響轉化效率的各種因素，建立了高效、可重復的基因轉化體系，為四倍體刺槐目的基因的導入打下了基礎。
  2. However, genetic improvement by in vitro culture in mustard ( brassica juncea coss. ), especially in chinese mustard, is restricted by the poor frequency of shoot regeneration, and no regeneration system is established yet

    芥菜類作物（尤其是中國芥菜）再生率偏低，在遺傳轉化、突變體篩選等方面尚未形成一個高效穩定的再生體系，從而制約了離體條件下遺傳改良的進程。
  3. Pre - differentiation and proper partial desiccation of calli before transferred to regeneration medium was found to apparently improve the frequency and quality of plant differentiation. with our optimized culture condition and treatment style, induction frequency of pei ' ai64s and 9311 can be reached 62. 45 % and 85. 30 % respectively and after 3 months of subculture calli can remain high - quality embryogenic state, when high - quality embryogenic calli after two times of subculture were used as acceptor, callus differentiation frequency can arrive at 85. 5 % and 87. 7 % respectively

    採用我們優化后的培養條件與處理方式，培矮64s和9311愈傷組織的誘導頻率分別可達到62 . 45和85 . 30 ；繼代培養時間達三個月左右仍能保持較好的胚性生長狀態；對于繼代兩次胚性生長狀態良好的愈傷組織分化頻率分別可達到85 . 5和87 . 7 。
  4. The genotype is a main factor in the genetic transformation via agrobacteriwn - mediated. the results of orthogonal experiments of the factors which affect mainly the transformation illuminates that the erniuxin genotype + bacterium 15 x + explant + dip - dye is the best one. the cocultivation time is 28 days. the experiment shows that : the erniuxin cotyledon regeneration frequency is very high, and that the dongnong901 hypocotyl regeneration frequency is very high

    確立了農桿菌介導轉化過程中基因型是影響轉化率的主要因素。通過極差分析，基因型為「二牛心」 ，菌液濃度15倍的，外植體為子葉，感染方法為浸泡法是最佳的組合。農桿菌與外植體共培養的時間為28h 。
  5. Cms dense insertion wire tank is suitable for the electricity system with following conditions : four - wrie system or five - wire system, with frequency from 50 - 60hz, voltage up to 660v, carrent from 250a to 5000a. as the ancillary electricity supply equipment for engineering, corporation, and mansions it has special benefit for the regeneration of old enterprise

    Cmc系列密集型插接式母線槽適用於交流三相四線制三相五線制，頻率50 - 60hz ，額定工作電壓至660v ，額定工作電流250a - 5000a的供配電系統，作為工礦企事業和高層建築中供配電設備的輔助設備，特別適合於老企業的車間改造。
  6. High frequency shoot regeneration from giant duckpear leaves in vitro

    大鴨梨葉片高頻率不定梢再生誘導研究
  7. Two main contents were concluded in this paper : the plant regeneration and genetic transformation. some effective factors were studied in tissue culture in order to establish a quick, high frequency regeneration system of genetic transformation for long ya lillium

    本研究包括兩個主要內容：龍牙百合的組織培養和遺傳轉化。以龍牙百合為材料，組培研究表明，鱗片葉是組培的適宜外植體。
  8. The result of study on the factors affecting the transformation frequency showed : the leaf disc was pre - cultured for 2 days, infected for 20 minutes, co - cultivated with agrobacterium eha105 for 2 days, which could improve regeneration efficiency. the highest regeneration efficiency was 13. 3 % in this experiment

    實驗結果表明：葉片預培養2d ，農桿菌浸染20min ，與農桿菌共培養2d時，篩選培養基上洋桔梗葉盤不定芽分化頻率最高，達13 . 3 。
  9. Comparing the two genotypes, the frequency of callus induction and green plant regeneration was less affected for tolerance - genotype

    耐病基因型的愈傷組織誘導率和綠苗分化率的降低幅度均小於感病材料。
  10. The results showed that with the increase of the concentration of the crude toxin in culture media, the frequency of callus induction and green plant regeneration was decreased

    結果表明：隨著赤霉病菌粗毒素預處理濃度的提高，大麥花藥愈傷組織誘導率降低，愈傷組織的綠苗分化率降低。
  11. Bap performed more important function than kt in differentiation of tall fescue embryogenic calli, but better results could be achieved with combination of 2mg / l bap and 0. 5mg / l kt. at this cytokinin level, 0. 5mg / l naa was recommended to obtain the highest callus regeneration frequency. plant regeneration could be evidently boosted when embryogenic calli were pre - differentiated on high - osmoticum medium with 60g / l sucrose, and / or when the pre - differentiated compact calli were differentiated on differentiation medium solidified with l0g / l agar

    高羊茅胚性愈傷組織分化時， bap的作用要比kt大，但2mg lbap與0 . 5mg lkt配合可獲得更佳的效果；在該細胞分裂素水平下，生長素naa用0 . 5mg l ，愈傷組織再生率最高；胚性愈傷組織先在含60g l蔗糖的分化培養基上高滲預分化，以及經高滲預分化后的緻密愈傷組織在瓊脂濃度為10g l的分化培養基上分化，能明顯促進愈傷組織的植株再生；在分化培養基中添加脯氨酸導致愈傷組織再生率下降，但同時有減少白化苗再生的趨勢。
  12. ( 1 ) plant regeneration system of cucumber contyledonary node was established. ( 1 ) the cotyledonary node was regarded as optimal explant by comparing the differentiation frequency of 3 kinds of explants ( cotyledon, cotyledonary node and hypocotyl ). ( 2 ) by discussing the effect of pgr ( naa and 6 - ba ) concentration and combination on differentiation frequency of adventitious buds, we concluded that the optimal shoot induction medium is ms basal medium with 1mg / l 6 - ba ( ph5. 8 )

    （ 1 ）黃瓜子葉節植株再生建立東北農業大學理學碩士學位論文一通過對比三種外植體（于葉、子葉節、下胚軸）的分化率，得出最佳外植體類型為子葉節；通過探討pgr （ naa 、 6 ba ）濃度和配比對不定芽分化的影響，得出最佳芽誘導培養基為：卜1叭6 。
  13. 4. in the cultivation, wheat genotype, concentration of hormone in the medium and the kind of explant are the three key factors that influence frequency of induction embryogenic calli and plant regeneration

    小麥離體培養中，基因型、培養基激素濃度與外植體類型是影響小麥胚性愈傷組織誘導和再生頻率的3個主要因素。
  14. The author discussed the determination of selection pressure, measured the growth of calli and analyzed the influences of regeneration media on the regeneration of resistant calli in order to get some parameters to enhance the indica rice transformation frequency of particle bombardment

    從秈稻基因槍轉化過程中選擇壓的確定、愈傷組織的生長規律以及不同分化培養基對抗性愈傷出苗率的影響上，探討了可能提高秈稻基因槍轉化頻率的參數。
  15. High frequency somatic embryogenesis and plant regeneration of elite cotton variety ccri

    棉花優良品種中棉所19高頻體細胞胚胎發生細胞系篩選與植株再生
  16. Establishment of high frequency somatic embryogenesis and plant regeneration system of cotton

    棉花組織培養高效植株再生體系的建立
  17. Both the frequency and the average number of shoots regeneration in the treatment with 15. 0mg / l agnoa were significantly higher than that of the other five treatments including the control

    0 ? 20刀3g幾agno3均能顯著提高平均再生芽數，其中， 15刀ig lagno3效果最為明顯，顯著高於其它任何一種濃度處理。
  18. The average frequency of shoot regeneration in the cms line was 30. 0 % and 2. 34 % respectively and that in maintainer line was 30. 0 % and 3. 54 % respectively. on the other hand, explants of different sections of cotyledon resulted in different shoot regeneration abilities

    不育系子葉與下胚軸的平均芽再生率分別為30 . 00和2 . 34 ；而保持系的平均芽再生率分別為30 . 0和3 . 54 。
  19. Selection of the genotypes of high plant regeneration frequency from immature embryo calli in maize

    玉米幼胚高培養力基因型的篩選
  20. Morphological and physiological maturities of somatic cells directly affect plantlet germination and plantlet regeneration frequency

    體細胞胚在形態和生理上的成熟，直接影響到植株的萌發和再生頻率。
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