查询词典 NAA

B Of the six basic media MS, MS1/2 (half-strength of MS salts and vitamins), WPM, DKW, B5 and SH, MS1/2 was the most proper one to induce somatic embryos. Somatic embryos generally regenerated directly from excised zygotic cotyledons. PGRs combination affected somatic embryogenesis significantly. Medium with NAA 1mg/L, TDZ 0.05mg/L, IBA 2—10mg/L combined with BA 10mg/L, or IBA 10mg/L integrated with BA 0-2mg/L gave the highest induction rate. Excised zygotic hypocotyls had the strongest potential to produce callus. Callus induction was also affected significantly by media and PGRs. The proper callus induction condition was MS1/2 medium containing NAA 1mg/L, IBA 10mg/L, BA 2-5mg/L and TDZ 0.05mg/L. Harvest period affect somatic embryogenesis significantly. Zygotic embryo explants collected from the end of July to the middle of August had strong potential to generate somatic embryos, when endosperm finished solidification, different parts of the embryos were completely formed, the size of embryos occupied about 2/3 of the embryo sac. Provided with optimized conditions, direct somatic embryogenesis rate can attain to 33. 68%, and callus induction rate of hypocotyls was up to 90.7%. Cytological observation on megasporogenesis and zygotic embryogenesis of Manchurian ash showed that the ovary was twicarpellum, twilocular with two ovules each loculus. The ovule was tenuinucellar and anatropous, with one megasporcocyte. The development of embryo sac is of the Polygoum type.

体细胞胚胎发生研究的结果表明：(1)成熟过程中的合子胚是诱导水曲柳体细胞胚胎发生的最佳外植体材料；(2)在所试验到的MS、MS1/2（将MS的所有成分均减半）、WPM、DKW、B〓、SH等六种基本培养基中，MS1/2是最适合诱导水曲柳体细胞胚胎发生的基本培养基；(3)水曲柳的体细胞胚胎发生以直接发生为主，体细胞胚主要来自于从合子胚分离的完整子叶；(4)培养基中的激素组合对水曲柳的体细胞胚胎发生有显著影响，诱导直接体细胞胚发生较好的激素组合有NAA 1mg/L+IBA 2，5，10mg/L+BA 10mg/L+TDZ 0.05mg/L和NAA 1mg/L+IBA 10mg/L+BA 0，2mg/L+TDZ 0.05mg/L；(5)合子胚分离的下胚轴具有最强的愈伤组织诱导潜力，少数愈伤组织可以分化出体细胞胚；(6)愈伤组织的诱导也受培养基和激素配比的显著影响，最适宜诱导的培养条件为MS1/2+NAA 1mg/L+IBA 10mg/L+BA 2，5mg/L+TDZ0.05mg/L；(7)采种时间对体细胞胚胎发生有显著影响。7月末到8月中旬的合子胚具有较强的体细胞胚发生潜力，此时种子尚未成熟，胚乳已呈固态，种胚的各个部分已分化完全，种胚体积占胚腔的大约2/3；(8)在各自综合的最适条件下，完整子叶的体细胞胚诱导率可达33.68%，下胚轴的愈伤组织诱导率可达90.7%。

Results showed that green firm callus and rooting were obtained with treatments of NAA 0.5-3.0mg/L, in which the NAA 0.5mg/L treatment appeared the optimal rooting result of 90%. White loose callus was obtained with treatment of 2,4-D0.1-3.0 mg/L.Callus can not be induced by adding BA solely at 0.5-3.0mg/L. There appeared bud redifferentiation only when appropriate concentration of combined BA,NAA and 2,4-D were applied.

结果表明：单独加入NAA0.5～3.0mg／L可诱导出绿色致密的愈伤组织，并再生出根，其中NAA0.5mg／L处理生根率最高，达90％；单独加入2，4-D0.1-3.0mg／L可诱导出白色疏松的愈伤组织；单独使用BA0.5—3.0mg／L不能诱导出愈伤组织；BA与NAA或2，4-D只有在适当的质量浓度范围内配合使用才能分化出芽，芽分化率最高的处理为BA3.0mg／L＋NAA0.5mg／L，分化率为30％。

To find out the suitable medium, the optimization groups of hormone of NAA content and ZT content and the appropriate cultural density, the protoplast of two species of Jujuba trees have been cultivated by taking as subject the protoplast of non-kernel small date and egg-like dates embryonic suspension cells obtained by zymolysis, and by employing different mediums with different combination content of NAA, ZT hormones and culture density of protoplast.

以无核小枣和鸡蛋枣两个枣树品种的胚性悬浮细胞经酶解获得的原生质体为材料，采用不同种类的培养基、不同含量的NAA和ZT激素组合及不同原生质体培养密度对两个枣树品种的原生质体进行培养，以获得适宜的培养基种类、较佳NAA和ZT的激素组合及适宜的培养密度。

Inconclution, for produce Aesculus hippocastanum L in a mass, we should induce secondary somatic embryos with integral somatic embryos, the suitable culture medium is MS+KT 0.1mg/L+NAA 0.01 mg/L or MS+ZT 0.1mg/L+NAA 0.01 mg/L.

综合上述研究结果，为大规模生产欧洲七叶树，以完整的体细胞胚诱导次生胚效果最好，合适的培养基为MS+KT 0.1mg／L+NAA 0.01 mg／L或MS+ZT 0.1mg／L+NAA 0.01 mg／L。

Methods Our experiment included treatments of ethylene 0, 250, 500 mgL^(-1,α-NAA 0, 50, 100 mgL^(-1 and joint addition of ethylene and α-NAA 250 mgL^(-1+50 mgL^(-1) for A. anomala and S. variegata plants.

实验分3种处理：单独用乙烯利溶液处理（浓度分别为0、250和500 mgL^(-1)）、单独用α-NAA溶液处理（浓度分别为0、50和100 mgL^(-1)）和二者混合处理（250 mgL^(-1)乙烯利溶液＋50 mgL^(-1)α-NAA溶液）。

Brevicaulis was lower than that of A japonica, A. mamillata and A. crispa, when they were inoculated in the same rooting medium. The effect of NAA on shoot rooting of Ardisia was limited. The influence of NAA (0.5 mg/L) on sterile shoot rooting of A japonica, A. crispa and A. brevicaulis was poor when in comparison with IAA (0.5 mg/L) and IBA (0.3 mg/L or 0.5 mg/L), but it had no significant difference between NAA and other auxins on shoot rooting of A.

相同的根诱导培养基中，血党生根情况比虎舌红、紫金牛和百两金差；而生长素当中NAA对于诱导紫金牛属植物生根的效果不是很好，0.5 mg／L的NAA对诱导紫金牛、百两金和血党无菌苗生根的效应不如0.5 mg／L的IAA，0.3 mg／L和0.5 mg／L的IBA，对诱导虎舌红生根的效应则差别不大。

Results The value of NAA and Cho/Cr was decreased obviously.The NAA value,between benign and malignant tumor and between intracerebral and extracerebral tumor,had significant effectiveness.But the Cho and Cr value and the peak ratio of metabolites had no significant effectiveness between benign and malignant tumor and between intracerebral and extracerebral tumor.

结果：几乎所有颅脑肿瘤的NAA峰均下降，Cho/Cr下降；良恶性肿瘤之间、脑内外肿瘤之间的NAA峰值的比较差异有显著性，但其Cho、Cr峰值的比较及各代谢产物的峰值比值的比较差异无显著性。

With Zhonghuang 35 as tested materials, the seed germination experiments of soybean were carried out by using 0.01, 0.10, 1.00 and 10.00 mg/L NAA. After culture for 7 d, the germination rates and the lengths of plumular axis, radicle as well as germ of soybean seeds were measured to compare the effects of NAA with different concn. on the plumular axis length and hypocotyls-radicle ratio when the soybean seeds germinated.

方法］以中黄35为供试材料，采用不同的NAA浓度(0.01、0.10、1.00、10.00 mg/L)对黄豆种子进行萌发培养试验，培养7 d后分别测量黄豆种子的萌发率以及胚轴、胚根和胚芽的长度，比较不同浓度的NAA对黄豆种子萌发时的胚轴长、胚轴胚根比的影响。

Result The optimum medium formula for protocorm propagation in tissue culture of C. grandiflorium was MS+0.1 mg/L 6-BA. The suitable medium for protocorm induction and differentiation in tissue culture of C. grandiflorum was WS+1.5 mg/L 6-BA+0.3 mg/L NAA with the bud-inducing rate up to 130%. The suitable medium for root inducement was 1/2MS+0.2 mg/L NAA+1.0 mg/6-BA and the survival rate of in vitro plantlets after transplanting was 78%.

结果］大花蕙兰组织培养原球茎粉殖以MS+0.1 mg/L NAA+2.0 mg/L6-BA培养基配方最好；适合大花蕙兰组织培养原球茎诱导分化的培养基配方为MS+1.5 mg/L6-BA+0.3 mg/L NAA，诱导出芽率可达130%；适合大花蕙兰诱导生根的培养基配方为1/2 MS+0.2 mg/L NAA+1.0 mg/L6-BA，试管苗移栽后成活率为78%。

The 1/2 MS medium supplemented with 1.0 mg·L-1 BA and 0.1 mg·L-1 NAA was very beneficial to the protocorm differentiation and propagation of D.candidum .The highest protocorm propagation index was obtained from the medium containing the activated carbon.The highest root numbers and length were observed in plants growing in 1/2 MS medium containing 0.5 mg·L-1 NAA.

结果与结论：添加20%马铃薯液有利于种胚的萌发，种胚萌发率为79.37%；BA 1.0 mg.L-1和NAA 0.1 mg.L-1最有利于原球茎增殖，培养基中添加2%活性碳原球茎增殖倍数高；NAA有助于试管苗的生根，不同含量NAA以0.5 mg.L-1时试管苗平均根数最多和平均根长最长。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。