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激光对珠子参愈伤组织诱导影响的研究 总被引:1,自引:0,他引:1
通过不同激光功率密度和处理时间处理珠子参植株,然后分别用珠子参的茎和叶做外殖体进行愈伤组织诱导。结果表明,不经激光处理,珠子参茎和叶的愈伤组织诱导率分别为45.3%和0.7%。经激光处理后,珠子参茎和叶愈伤组织诱导率分别最高达到了92.0%和6.7%。经t检验,激光处理后,外殖体的愈伤组织诱导率与对照相比达到了显著性差异,表明激光处理有助于珠子参愈伤组织的诱导。 相似文献
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寡糖素对西洋参和人参愈伤组织培养的影响 总被引:7,自引:1,他引:7
红花、人参和黑节草寡糖素(简称CO、GO和DO)分别加入到培养基中,均能影响西洋参和人参愈伤组织生长和皂甙的合成。CO、GO和DO促进西洋参愈伤组织皂甙合成的最适浓度分别为5ppm、15ppm和10ppm,皂甙产率分别为14.89mg/flask、11.24mg/flask和14.53mg/flask,均明显高于对照(8.22mg/flash).CO、GO和DO促进人参愈伤组织皂甙合成的最适浓度分别为5ppm、20ppm和5ppm,皂甙产率分别为11.79mg/flask、11.20mg/flask和10.48mg/flask,均明显高于对照(6.65mg/flask),它们在适度浓度下对人参愈伤组织的生长均有促进作用。 相似文献
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黑节草寡糖素C-7和C-8,人参寡糖素G-7和G-8分别加入到培养基中,均能影响滇紫草愈伤组织中色素的合成。C-7、C-8、G-7和G-8加入到培养基中,促进紫草色素合成的最适浓度分别为1.5ppm、2.5ppm、2.5ppm和2.5ppm,色素浓度分别为21.39mg/gDW、22.68mg/gDW、29.46mg/gDW和36.73mg/gDW,均明显地高于对照(16.73mg/gDW)。并对寡糖素的作用机理进行了讨论。 相似文献
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从来源于马铃薯(Solanum tuberosum cv.Chieftain)茎的愈伤组织中分离到白色和红色2种愈伤组织,用鲜重法和分光光度法分别测量愈伤组织的生长量和花色苷的含量,并对激素、抗菌素和糖对马铃薯愈伤组织生长和花色苷积累的影响进行研究。结果表明:低浓度的2,4-D有利于红色愈伤组织的花色苷积累,高浓度的2,4-D促进其生长而不利于花色苷的积累;高浓度的6-BA能促进红色愈伤组织中花色苷的积累并诱导白色愈伤组织花色苷的合成,但抑制其生长;卡那霉素能使白色愈伤组织变红并积累花色苷,高浓度的卡那霉素严重抑制愈伤组织的生长并最终变褐死亡;提高蔗糖浓度能促进愈伤组织花色苷的产生和积累,但超过70g/L时抑制生长。实验结果为今后花色苷生物合成机理研究和花色苷的工厂化生产奠定了基础。 相似文献
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滇紫草愈伤组织培养与紫草素产生 总被引:8,自引:1,他引:8
浓度为10~(-5)Smol/1和10~(-6)mol/l的2,4-D和NAA分别与10~(-5)mol/l的KT组合,能明显抑制滇紫草(Onosma paniculatum Bur. et Fr.)愈伤组织中紫草素的产生,但几乎不受天然生长素IAA和KT组合的影响。葡萄糖较蔗糖能更有效地促进紫草素的产生,它们的最适浓度均为6%。LH和CH能抑制紫草素的产生,CH浓度大于0.02%时能抑制愈伤组织的生长,LH对生长无明显影响。椰乳浓度为10%时,能明显地促进紫草素的产生,紫草素的含量是对照的24倍。 相似文献
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东北延胡索愈伤组织培养及延胡索乙素形成的适宜条件 总被引:1,自引:0,他引:1
比较了东北产两种延胡索各器官的愈伤组织发生情况,采用单因子和正交设计试验,对齿瓣延胡索(Corydalis remota)愈伤组织生长及延胡索乙素形成的适宜条件做了研究。结果表明,齿瓣延胡索各器官对培养基的响应性均显著高于东北延胡索(C. ambigua),其块茎愈伤诱导率高达93.3%;MS培养基对于愈伤组织诱导较White有利, 2 mg·L-1 2, 4-D与1 mg·L-1 KT的组合愈伤诱导率最高,并适于继代培养。正交试验结果表明,愈伤组织生长和延胡索乙素形成的适宜条件存在差异,在27组处理中, 1号培养基有利于培养物鲜重的提高, 9号有利于干物质的积累, 10号则有利于的延胡索乙素形成;培养基中几种无机离子和有机成分均显著影响愈伤组织生长和延胡索乙素形成,NH4+/NO3-与Ca2+和K+之间的交互作用对于生物量积累和延胡索乙素含量均有显著影响。 相似文献
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Wang Zhe Jia Zhong-jian Zhu Zi-qing Chu Tze-tsin Yang Chong-ren Zhou Jun Ryoji Kasai Osamu Tanaka 《植物学报(英文版)》1985,27(6)
From the rhizome of Panax japonicus C. A. Meyer var. angustifolius (Burk.) Cheng et Chu collected in Yunnan, 10 triterpenoid saponins were isolated with SiO2 chromatograph and reversed phase chromatograph. The saponins were identified as ginsenoside Ro (1), Rd (7), Rg1 (8), Rhl (9), notoginsenoside R1 (6), chikusetsusaponin Ⅳ(4), Ⅳa(2), zingibroside R1(3), oleanolic acid 28-β-D-glucoside (10) and oleanolic acid 3-β-D-glucuronoside (5) respectively, by means of 13C-NMR, MS of acetate, and chemical methods, as well as compared with authentic samples. Among the rest, (5), a prosaponin of ginsenoside Ro (1) was firstly isolation from species of genus Panax. The fact that saponin constituents of rhizome of var. angustifolius was similar to P. japonicus and var. major, further supported the view that three taxes belonged to a variational limit of one species. 相似文献
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Wang Da-qi Fan Juan Wang Xi-bin Feng Bao-shu Yang Chong-ren Zhou Jun Ning Yong-cheng Tao Jia-xun 《植物学报(英文版)》1988,30(4)
From the rhizome of Panax japonicus C. A. Meyer var major (Burk.) Wu et Feng, collected in Qinling Mountain (Shaanxi), seven saponins were isolated. By means of 13C NMR, FAB-MS and comparison with authentic samples, six of them were identified with chikusetsusaponin Ⅴ (=ginsenoside Ro), Ⅳa, oleanolic acid 28-O-β-D-glucoside, ginsenoside Re, Rg2 and notoginsenoside R2. Another saponin was proved to be chikusetsusaponin Ⅳa methylester, and its structure was elucidated to be oleanolic acid (3-O-β-D-glucorunopyranosyl-methylate)-28-O-β-D-glucopyranoside. A comparison of sapoinin constituents of this variety collected in Qinling Mountain (Shaanxi) and Hengduan Mountains (Yunnan) was provided. As a common characteristic of both rhizome, it has been proved that the saponins of oleanane type were main constituents and the saponins of dammarane type were minor constituents. But some differences also has been found in both materials (Tab. 1). From the relationship between the biosynthesis pathway of triterpenoids and plant phytogenetics, this is a phenomenon of chemical polymorphism in a variety, which followed in the train of geographical distribution, ledto appearance of a che- mical evolution in the process of evolution and of spread of this variety. 相似文献
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珠子参根茎结构特征与皂苷积累的动态变化关系 总被引:1,自引:0,他引:1
皂苷类物质是珠子参根茎内贮存的重要次生代谢物质。根据皂苷类物质的化学性质,采用组织化学定位、显微制片技术和皂苷定量分析方法对不同生长年限珠子参的根茎节部进行了解剖学与皂苷动态积累的关系研究。结果表明:珠子参根茎节部横切面结构复杂,具有2至多个维管柱,属异常结构。珠子参根茎节部的加粗生长依赖于次生结构与三生结构的发生和分化。根茎节部分泌腔周围的分泌细胞、次生韧皮和三生韧皮部是珠子参皂苷类物质主要积累场所。随着珠子参生长年限的延长,根茎节部分泌腔、异常维管柱的数目及皂苷的含量增加。分泌腔、异常维管柱的数量和相对密集的节部可作为珠子参优良品种选育的结构和形态指标。 相似文献
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羽叶三七根茎的三萜皂甙成分及其化学分类学意义 总被引:2,自引:0,他引:2
羽叶三七(Panax japonicus C. A. Meyer var. bipinnalifidus (Scem.) Wu et Feng)又称疙瘩七,产我国西北部至西南部山区,是人参届植物中分布海拔和纬度均较高的一个种类。在陕西省秦岭地区主要产于南北坡海拔2100—2900米的针叶林下阴湿处。民间以其根茎入药,具有清热解毒、顺气健胃、活血祛瘀、滋补强壮之效。作为国产人参属植物皂甙成分系统研究的一个部分,本文报告秦岭产羽叶三七根茎的皂甙成分,并讨论其化学分类学意义。 相似文献
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A novel acylated cyanidin 3-sambubioside-5-glucoside was isolated from the purple-violet flowers of Matthiola longipetala subsp. bicornis (Sm) P. W. Ball. (family: Brassicaceae), and determined to be cyanidin 3-O-[2-O-(2-O-(trans-feruloyl)-β-xylopyranosyl)-6-O-(trans-feruloyl)-β-glucopyranoside]-5-O-[6-O-(malonyl)-β-glucopyranoside] by chemical and spectroscopic methods. In addition, two known acylated cyanidin 3-sambubioside-5-glucosides, cyanidin 3-O-[2-O-(2-O-(trans-sinapoyl)-β-xylopyranosyl)-6-O-(trans-feruloyl)-β-glucopyranoside]-5-O-[6-O-(malonyl)-β-glucopyranoside] and cyanidin 3-O-[2-O-(β-xylopyranosyl)-6-O-(trans-feruloyl)-β-glucopyranoside]-5-O-[6-O-(malonyl)-β-glucopyranoside] were identified in the flowers. 相似文献