共查询到15条相似文献,搜索用时 125 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
以湖北双蝴蝶带芽茎段、不带芽茎段及叶片为外植体,以MS为基本培养基,通过添加不同的植物生长物质种类和浓度配比,建立湖北双蝴蝶组培快繁体系。结果如下:在所有实验方案中,带芽茎段的出愈率最高,是理想的离体快繁材料。较适宜的初代培养基为MS+BA2.0mg/L+蔗糖3.0%,增殖培养基为MS+BA2.0mg/L+NAA0.1mg/L+蔗糖3.0%,而根的诱导则在1/2MS+NAA0.5mg/L+蔗糖1.5%的培养基上进行较为适宜。同时对组织培养过程中湖北双蝴蝶植株再生的方式进行了讨论。 相似文献
9.
以日本高杆青花菜(スティックセニョール)茎段及带叶腋芽为外殖体,接种于MS BA 3.0mg/L NAA 0.5mg/L 培养基上培养20d,腋芽萌发生长成2~3cm 高的芽苗,而茎段则膨大后从切口生长出淡绿色愈伤组织,并分化出大量丛生芽。将幼苗转接到MS BA2.0mg/L NAA0.2mg/L 培养基上进行增殖培养,繁殖系数为4~6,待芽长2~3cm 时再分切成单株于1/2MS NAA0.2mg/L IBA0.1mg/L 培养基上进行生根培养,25d 后,生根率可达86%。在温度20~25℃条件下,移栽成活率82%。 相似文献
10.
毛叶丁香罗勒的快速繁殖 总被引:2,自引:0,他引:2
植物名称:毛叶丁香罗勒(Ocimum gratissimum var. suave).材料类别:种子、无菌种子苗的叶片和茎段。培养条件:种子经50ppmGA_3处理24小时,用常规方法消毒后接种在MS琼脂培养基上,或附加BA0.5 mg/L(单位下同)。叶片和茎段接种于MS+BA0.5~2或BA2+IAA0.2的培养基上进行丛生芽的诱导和增殖。生根培养基用1/2MS+NAA0.5。培养温度21±1℃,每日光照10小时,光照度 相似文献
11.
12.
不同激素对匙叶芋芽的诱导与增殖的影响 总被引:1,自引:0,他引:1
取日本引进的Spathiphyllum sp.根茎外植体接种在不同激素配比的MS培养基上,结果以MS BA 2mg/l KT 1mg/l诱导芽的效果最好;通过附加不同种类的细胞分裂素,不同浓度的BA,不同生长素的试验,证明MS BA 1mg/l IAA 0.1mg/l组成较有利于芽的增殖;将芽移入生根培养基,15天左右长出根,形成完整植株。 相似文献
13.
活血丹组织培养与快速繁殖技术研究 总被引:1,自引:0,他引:1
以活血丹为材料,应用组织培养和快速繁殖技术,对适于活血丹增殖分化的培养基、培养方式进行了系统的研究。用活血丹叶片作为外植体,在MS添加生长素2,4-D和细胞分裂素BA的培养基上成功诱导出愈伤组织,并对其继代培养条件进行研究,分析了继代培养中褐化的原因。在MS添加NAA和BA的培养基中,活血丹的茎尖和带腋芽茎段能直接诱导出大量丛生芽,随后将不定芽转入MS添加IBA和KT的培养基中,可生成不定根,完成快速繁殖技术体系。结果表明:活血丹愈伤组织诱导的最佳培养基为MS+2,4-D(1.5mg/L)+BA(1.0mg/L),诱导率高达91.38%。丛生芽诱导的适宜培养基为MS+NAA(0.1mg/L)+BA(1·0mg/L),在此培养基上,出芽率达100%,芽增殖系数接近于10,有利于生物量的积累。而根的诱导则在MS+IBA(1.0mg/L)+KT(1.0mg/L)培养基上进行最好,此基础上能诱导出健康、粗壮的根。试管苗炼苗后移栽,成活率达100%。 相似文献
14.
Summary A viable protocol has been developed for direct and indirect shoot regeneration of Vernonia cinerea. To establish a stable and high-frequency plant regeneration system, leaf and stem explants were tested with different combinations
of α-naphthalene acetic acid (NAA), indole-3-acetic acid (IAA), and benzylaminopurine (BA). Lateral buds on nodal explants
grew into shoots within 2 wk of culture in Murashige and Skoog (MS) basal medium supplemented with 20.9 μM BA. Excision and culture of nodal segments from in vitro-raised shoots on fresh medium with the same concentration of BA facilitated development of more than 15 shoots per node.
Similarly leaf, nodal, and internodal explants were cultured on MS basal medium supplemented with different concentrations
of BA, NAA, and IAA either alone or in combinations for callus induction and organogenesis. Shoot buds and/or roots were regenerated
on callus. Shoot buds formed multiple shoots within 4 wk after incubation in induction medium. Adventitious buds and shoots
proliferated when callus was cut into pieces and subcultured on MS basal medium containing 20.9 μM BA and 5.3 μM NAA. This combination proved to be the best medium for enhanced adventitious shoot bud multiplication, generating a maximum
of 50 shoots in 4 wk. This medium was also used successfully for shoot proliferation in liquid medium. Root formation was
observed from callus induced in medium containing 8.05–13.4 μM NAA. Regenerated shoots exhibited flowering and root formation in MS basal medium without any growth regulators. Plantlets
established in the field showed 85% survival and exhibited identical morphological characteristics as the donor plant. 相似文献
15.
野葛的组织培养和植株再生 总被引:19,自引:1,他引:18
野葛〔Puerarialobata(Wild.)Ohwi〕为豆科多年生缠绕藤本植物,分布遍及全国,主产南方[1],可药食两用,其块根肥厚,富含淀粉、蛋白质、钙、磷、铁及脂肪酸等,还含有多种异黄酮类化合物,对治疗心绞痛、高血压、冠心病,抑制肿瘤等效果显... 相似文献