迷迭香的离体培养(摘编)

培养条件 　　(1)愈伤组织诱导培养基:MS＋6-BA 1.0 mg*L－1(单位下同)＋IAA 0.025＋NAA 0.1;(2)增殖培养基：MS 6-BA 0.5;(3)分化培养基:MS 6-BA 3.0＋IAA 1.0;(4)茎尖直接诱导丛生芽培养基: MS 6-BA 0.8 IAA 0.2;(5)伸长培养基:MS 6-BA 1.0＋IAA 0.2;(6)生根培养基:MS IBA 0.25. 　　……     

三尖杉的离体胚培养

1植物名称三尖杉(Cephalotaxus fortunei Hook.f.)。2材料类别离体胚。3培养条件芽诱导培养基:MS 6-BA2.0mg·L-1(单位下同) IAA1.0 NAA0.1;芽增殖培养基:MS 6-BA2.0 IAA1.0 NAA1.0;生根培养基:1/2MS IBA1.0 NAA0.5 KT0.2。以上各培养基     

披针叶屈曲花的组织培养和快速繁殖

1植物名称披针叶屈曲花(Iberis intermdia Guersent.)。2材料类别带芽茎段、叶片。3培养条件诱导培养基:(1)MS 6-BA 1.0mg·L~(-1) (单位下同) NAA 0.1 3%蔗糖,(2)MS 6-BA 1.0 NAA 0.1 2,4-D 0.1 3%蔗糖。增殖分化培养基:(3)MS 6-BA 2.0 NAA 0.1 3%蔗糖,(4)MS 6-BA 2.0 NAA 0.1 2,4-D 0.1 3%蔗糖。生根壮苗培养基:(5)1/2MS 6-BA 0.5 NAA 0.1 GA_3 0.5 3%蔗     

益智的组织培养与快速繁殖

1植物名称益智(Alpinia oxyphylla). 2材料类别笋芽. 3培养条件愈伤组织诱导及增殖培养基:(1)MS 6-BA 3.0 mg·L-1(单位下同);(2)MS 6-BA 3.0 NAA0.05;(3)MS 6-BA 3.0 NAA 0.1;(4)MS 6-BA 3.0 NAA02.不定芽分化及增殖培养基:(5)MS 6-BA1.0NAA 0.01;(6)MS 6-BA 4.0 NAA 0.1;(7)MS 6-BA 6.0 NAA 0.1;(8)MS 6-BA 8.0 NAA 0.1.生根培养基:(9)1/2MS NAA 0.2.以上培养基均添加30 g·L-1蔗糖、5.8 g·L-1卡拉胶,pH 6.0.培养温度26～28℃,光照时间8～10 h·d-1,光照度1 500～2000 lx.     

速生欧美黑杨愈伤组织诱导及植株再生

1植物名称速生欧美黑杨(Populus euramericana). 2材料类别一年生幼嫩的健壮枝条. 3培养条件基本培养基为MS培养基.愈伤组织诱导及芽分化培养基:(1)MS 6-BA 0.3 mg·L-1(单位下同) NAA 0.01;(2)MS 6-BA 0.5 NAA 0.03;(3)MS 6-BA 1.5 NAA 0.3;(4)MS KT 0.5 NAA0.03;(5)MS KT 1.0 NAA 0.2;(6)MS 6-BA 0.5 2,4-D 0.3;(7)MS 6-BA 0.3 IAA 0.5;(8)MS 6-BA 0.3 IBA 0.5.芽继代增殖培养基:(9)MS 6-BA 1.0 NAA 0.1;(10)MS 6-BA 1.0 NAA0.1 GA32.0.生根培养基:(11)MS IBA 2.0.以上培养基中的蔗糖除生根培养基加30 g·L-1外,均附加40 g·L-1,琼脂6 g·L-1.培养温度(25±2)℃,光照12 h·d-1,光照度1500 lx.     

红玫瑰木的离体快繁

1植物名称红玫瑰木(Ochrosia cocfnea). 2材料类别实生苗茎尖. 3培养条件无菌播种培养基:(1)MS 6-BA 0.1 mg·L-1(单位下同);(2)MS.不定芽诱导及增殖培养基:(3)MS 6-BA 3.0 NAA 0.3;(4)MS 6-BA2.0 NAA 0.2;(5)MS 6-BA 2.0 NAA 0.2 蔗糖40g·L-1;(6)MS 6-BA 1.0 NAA 0.1.壮苗培养基:(7)MS 6-BA 0.3 NAA 0.01 椰子汁10 mL·L-1.生根培养基:(8)MS NAA 0.2 IBA 2.0;(9)MS NAA 0.2 IBA 1.0;(10)1/2MS NAA 0.2 IBA2.0;(11)MS NAA 0.5.以上培养基除已注明的外均含30 g·L-1蔗糖、琼脂6.7 g·L-1,pH 5.5～5.8.培养温度(28±2)℃,光照度1 500～2 000 lx,光照时间12 h·d-1.     

五桠果的组织培养和快速繁殖

1植物名称五桠果(Dillenia indica). 2材料类别实生苗茎尖. 3培养条件无菌播种培养基:(1)MS 6-BA 0.2 mg·L-1(单位下同);(2)MS NAA 0.01;(3)MS.不定芽诱导及增殖培养基:(4)MS 6-BA 2.0 NAA 0.2 椰子汁10 mL·L-1;(5)MS 6-BA 1.0 NAA 0.1 椰子汁10 mL·L-1;(6)MS 6-BA 0.5 NAA 0.1 椰子汁10 mL·L-1.壮苗培养基:(7)MS 6-BA 0.3 NAA0.01 椰子汁10 ml·L-1.生根培养基:(8)MS NAA0.2 IBA 2.0:(9)MS NAA 0.1 IBA 0.1;(10)MS IBA 0.5.以上培养基均含30 g·L-1蔗糖、琼脂6.7 g·L-1,pH 5.5～5.8.培养温度(28±2)℃,光照度1 500～2 000 lx,光照12 h·-1.     

蓝蓟的组织培养与快速繁殖

1 植物名称蓝蓟(Echium VUlgare L.). 2 材料类别茎段和茎尖. 3 培养条件基本培养基为MS.(1)诱导芽萌发培养基:MS+6-BA 0.5 mg·L-1(单位下同)+NAA 0.1.(2)增殖培养基:MS+6-BA 1.0+NAA 0.1;(3)生根培养基:MS+IBA 0.5+NAA 0.05.     

喜树不定芽的诱导及植株再生

1植物名称喜树(Camptotheca acuminate),别名旱莲木. 2材料类别一年生喜树带芽茎段. 3培养条件芽诱导培养基:(1)MS NAA 0.05mg·L-1(单位下同) 6-BA 1.0.芽增殖培养基:(2)MS NAA 0.1 6-BA 0.5;(3)MS NAA 0.1 6-BA 1.0;(4)MS NAA 0.1 6-BA 2.0;(5)MS NAA0.5 6-BA 0.5;(6)MS NAA 0.5 6-BA 1.0;(7)MS NAA 0.5 6-BA 2.0.壮苗培养基:(8)MS NAA 0.05 6-BA 0.1～0.5.生根培养基:(9)1/2MS NAA 0.1 IBA 1.0;(10)1/2MS NAA 0.5 IBA1.0;(11)1/2MS NAA 1.0 IBA 1.0.以上所有培养基均附加6.5 g·L-1琼脂、30 g·L-1蔗糖,pH值为5.9.培养温度为(25±2)℃,光照度为1000～2000lx,光照时间14 h·d-1.     

香石竹叶片离体再生体系的建立

以香石竹(Dianthus caryophyllus Linn.)无菌苗叶片为外植体,从不同细胞分裂素及其他激素配合使用等方面进行筛选,建立香石竹叶片离体再生体系.结果表明,不同的细胞分裂素影响叶片不定芽分化频率,其中较低浓度的6-BA(0.5 mg·L-1)和TDZ(0.001 mg·L-1)配合使用能有效诱导香石竹叶片不定芽分化;添加一定浓度的PP333(4 mg·L-1)可提高叶片不定芽分化频率和平均芽数.香石竹叶片不定芽分化的适宜培养基为:MS 0.002mg·L-1TDZ 0.5 mg·L-16-BA 0.2 mg·L-1IAA 4 mg·L-1PP333;壮苗培养基为:MS 0.2 mg·L-1 6-BA 0.2 mg·L-1IAA;生根培养基为:1/2 MS.不定芽诱导频率达到42.61%,平均芽数为4.53个.     

Investigation of the mechanism of temperature sensitivity of the electroreceptors of ampullae of lorenzini

In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980.     

Determination of stoichiometry of radioiodination of proteins

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.