中华结缕草成熟胚的离体培养再生植株

1植物名称中华结缕草(Zoysia sinica). 2材料类别成熟种子. 3培养条件基本培养基为改良MS(MSm):MS无机盐 核黄素(VB2)1.0mg·L-1(单位下同) 盐酸噻胺(VB1)1.0 烟酸(Vpp)0.5 盐酸吡哆辛(VB6)0.5 肌醇100 酶水解酪蛋白(CH)300 蔗糖30 g.L-1 琼脂6.0 g·L-1.愈伤组织诱导培养基:(1)MSm4葡萄糖20 g·L-1 2,4-D 2.5 6-BA 0.25;愈伤组织继代培养基:(2)MSm 6-BA 0.1 2,4-D 1.6,(3)MSm 6-BA 0.1 2,4-D 2.0,(4)MSm 6-BA 0.1 2,4-D 2.4,(5)MSm 6-BA 0.1 2,4-D 2.8,(6)MSm 6-BA 0.1 2,4-D 3.2;分化培养基:(7)MSm.愈伤组织诱导和继代培养均为黑暗条件,分化培养过程中光照度为2000 lx,光照时间为12 h.d-1,培养温度(26±2)℃.     

假俭草的组织培养与植株再生

1植物名称假俭草(Eremochloa ophiuroides),又名百足草. 2材料类别成熟种子. 3培养条件(1)诱导愈伤组织培养基:MS 6-BA Q1mg·L-1(单位下同) 2,4-D 4.5.(2)继代培养基:MS 6-BA 0.1 2,4-D 4.0 Vc 5.0.(3)芽分化培养基:MS 6-BA 2.0 NAA1.0 CoCl25.0 TDZ 0.5.(4)生根培养基:1/2MS NAA 0.5 IAA 0.5 MET 0.5 活性炭0.1%.     

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     

薰衣草的组织培养

1植物名称薰衣草(Lavandula angustifolia). 2材料类别种子. 3培养条件基本培养基为MS.萌发培养基:(1)MS 6-BA 2 mg·L-1(单位下同).增殖培养基:(2)MS 6-BA 2;(3)MS 6-BA 4.生根培养基:(4)MS 2,4-D 1;(5)MS 2,4-D 4;(6)MS NAA1;(7)MS NAA 4.以上培养基均加入0.7%琼脂、3%蔗糖,pH 5.8.培养温度(25±1)℃,光照度2 000～2500 lx,光照16 h·d-1.     

东北天南星的离体培养与快速繁殖

1 植物名称东北天南星(Arisaema amurense Maxim.). 2 材料类别新萌发的嫩叶. 3 培养条件基本培养基为MS.(1)嫩叶愈伤组织诱导培养基:1/2MS 6-BA 2.0 mg·L-1(单位下同) 2,4-D 0.5 3%蔗糖;(2)芽苗分化培养基:MS 6-BA 1.5 3%蔗糖;(3)芽苗继代增殖培养基:MS 6-BA 1.0 3%蔗糖;(4)壮苗生根培养基:1/2MS IBA 0.2 1.5%蔗糖.     

屋顶长生花的离体培养和植株再生

1植物名称屋顶长生花(Sempervivum tectorum). 2材料类别叶片. 3培养条件基本培养基为MS培养基.(1)诱导愈伤组织培养基:MS 2,4-D 2.0 mg·L-1(单位下同) 6-BA 2.0;(2)诱导分化培养基:MS 6-BA 2.0 NAA0.2 GA3 0.4;(3)继代增殖培养基:MS 6-BA0.3～4;(4)生根培养基:1/2MS NAA 0.2 IAA 1.0 0.3%活性炭.以上培养基均加入0.8%琼脂、4.5%蔗糖,pH 5.8.培养温度为(21±1)℃,光照度2500lx,光照时间14 h·d-1.     

阳桃的组织培养与植株再生

1植物名称阳桃(Averrhoa carambola),别名杨桃、五敛子、三廉子. 2材料类别无菌胚乳. 3培养条件诱导愈伤组织培养基:(1)MS 2,4-D 2.0 mg·L-1(单位下同) 6-BA 0.2;(2)MS 2,4-D 3.0 6-BA 0.1.诱导分化培养基:(3)MS ZT 3.0 NAA 0.2:(4)MS ZT 1.0 NAA 0.2:(5)MS ZT 5.0 NAA 0.2.生根培养基:(6)1/2 MS IBA 0.2 IAA 0.1.     

雪里蕻的组织培养和植株再生

1植物名称雪里蕻(Brassica juncea var.multicepsTsen et Lee). 2材料类别无菌苗的下胚轴. 3培养条件培养基:(1)1/2MS;(2)MS AgNO30.8 mg·L-1(单位下同) 6-BA 0.5 2,4-D 0.25;(3)MS AgNO3 0.8 6-BA 0.5 2,4-D 0.5;(4)MS AgNO3 0.8 6-BA 1 2,4-D 0.25;(5)MS AgNO30.8 6-BA 1 2,4-D 0.5;(6)MS 6-BA 0.25 IAA 0.1;(7)MS 6-BA 0.25 IAA 0.5;(8)MS 6-BA 0.5 IAA0.1;(9)MS 6-BA 0.5 IAA 0.5;(10)MS 6-BA1 IAA 0.1;(11)MS 6-BA 1 IAA 0.5;(12)1/2MS IAA 0.2.上述MS培养基中加30 g·L-1蔗糖,1/2MS培养基中加15 g·L-1蔗糖.固体培养基的胨力强度均为160 g·cm-2,pH 5.8.种子萌发于光照培养箱中26℃恒温培养,光照12 h·d-1,光强60μmol·m-2·s-1;其它培养温度为15～26℃,光照13 h·d-1,光强60～80μmol·m-2·s-1.     

西红花的离体成花

1植物名称西红花(Crocus sativus). 2材料类别球茎的幼嫩顶芽,长度在20～30 mm. 3培养条件诱导培养基分别为:(1)MS NAA 5mg·L-1(单位下同) 6-BA 5;(2)MS NAA 5 6-BA7;(3)MS KT 5 NAA 4;(4)MS 2,4-D 2 KT0.5;(5)MS 6-BA 2 2,4-D 0.1;(6)MS 6-BA2 IBA 1;(7)B5 KT 5 IAA 4 2,4-D 1 Pro 0.5;(8)B5 KT 5 IAA 4 2,4-D 1 Pro 0.5.以上培养基均添加琼脂0.8%;(1)～(5)中加蔗糖4%,(6)中3%,(7)中6%,(8)中4%;pH 5.8.培养温度(20±2)℃,黑暗培养.     

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.     

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.