共查询到20条相似文献,搜索用时 62 毫秒
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''''砀山酥梨''''的组织培养和脱毒快速繁殖 总被引:1,自引:0,他引:1
1植物名称白梨品种‘砀山酥梨’(Pyrus bretschneideri Rehd.)。
2材料类别茎尖。
3培养条件分化培养基:(1)改良MS+6-BA2.0mg.L^-1(单位下同)+NAA0.5+0.5%活性炭(AC);丛生芽诱导培养基:(2)MS+NAA0.5+6.BA0.5、1.0、1.5、2.0、3.0;增殖继代培养基:(3)MS+6.BA1.0+GA31.0+NAA0.2、0.5、1.0、1.5、2.0;生根培养基:(4)ASH+间苯三酚(PG)80+IBA1.0+NAA0.5,(5)ASH+IBA1.0+NAA0.5。 相似文献
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黑玫瑰竹芋的组织培养和快速繁殖 总被引:7,自引:6,他引:1
1植物名称黑玫瑰竹芋(Calathea roseapicta‘Black Rose’)。2材料类别幼嫩茎段。3培养条件(1)诱导培养基:MS 6-BA 4mg·L~(-1)(单位下同) NAA 0.5 10%CM:(2)增殖培养基:MS 6-BA 4 NAA 0.2;(3)壮苗生根培养基:1/ 2MS(或MS) IBA 0.1 NAA 0.2 0.1 g·L~(-1)活性 相似文献
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热带观赏水草--红玫瑰的组织培养和快速繁殖 总被引:10,自引:1,他引:9
1植物名称红玫瑰皇冠(Echinodorus horemanii‘NRUBL'). 2材料类别腋芽(图1). 3培养条件(1)诱导休眠芽萌动培养基:MS 6-BA 2 mg·L-1(单位下同) NAA 0.5;(2)不定芽诱导和继代培养基:MS 6-BA 5 AD(adenine)10;(3)生根培养基:MS 6-BA 0.2 IBA 0.5.上述培养基均附加30 g·L-1蔗糖、4 g·L-1卡拉胶,pH 5.8.培养温度25~26℃,光照度2 000 lx,光照时间10 h·d-1. 相似文献
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Birefringence of flow of preparations of myosin 总被引:4,自引:0,他引:4
BINKLEY F 《The Journal of biological chemistry》1948,175(1):385-390
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A sensitive method for the detection of small quantities of hydrophobic antioxidant free radical scavengers such as butylatedhydroxytoluene (BHT) and butylatedhydroxyanisole (BHA) in aqueous samples is described. The procedure involves extraction of the hydrophobic free radical scavenger into an organic solvent phase, followed by the subsequent reaction of an aliquot of this extract with the stable cation radical tris(p-bromophenyl)amminium hexachloroantimonate (TBACA). In experiments with BHT and BHA, the loss of TBACA absorbance at 730 nm was found to be linearly proportional to the amount of antioxidant added, with quantities of BHT as small as 200 pmol being easily detectable. In aqueous suspensions of dimyristoylphosphatidylcholine vesicles, assays of the aqueous BHT concentration showed that BHT partitioned strongly into the membrane phase, achieving very high BHT/phospholipid ratios. For a given concentration of BHT, partitioning into the membrane phase was greater in large, multilamellar liposomes than in either small, single-walled vesicles or in purified rat brain synaptic vesicle membranes. Direct assay of BHT and BHA in phospholipid membranes, however, was complicated by a nonspecific interaction between TBACA and the phospholipid. 相似文献
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通过对6种藓类植物,即褶叶青藓(Brachythecium salebrosum(Web.et Mohr.)B.S.G.)、湿地匐灯藓(Plagiomnium acutum(Lindb.)Kop.)、侧枝匐灯藓(Plagiomnium maximoviczii(Lindb.)Kop.)、大凤尾藓(Fissidensnobilis Griff.)、大羽藓(Thuidium cymbifolium(Doz.et Molk.)B.S.G.)和大灰藓(Hypnum plumaeforme Wils.)嫩茎和老茎的石蜡切片和显微观察发现,同一藓类植株的嫩茎和老茎,茎结构稳定,不同种藓类植物茎横切面具有不同特征.植物体茎横切面形状、表层细胞的层数、细胞大小和细胞壁厚薄、皮层细胞大小和形状、中轴的有无以及比例等特征可以作为藓类植物的分科分类依据之一. 相似文献
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