CN101292629A - Flax free pollen culture medium and flax free pollen culture method - Google Patents

Flax free pollen culture medium and flax free pollen culture method Download PDF

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CN101292629A
CN101292629A CNA2008100647514A CN200810064751A CN101292629A CN 101292629 A CN101292629 A CN 101292629A CN A2008100647514 A CNA2008100647514 A CN A2008100647514A CN 200810064751 A CN200810064751 A CN 200810064751A CN 101292629 A CN101292629 A CN 101292629A
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pollen
flax
free
callus
medium
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CN101292629B (en
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宋淑敏
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INSTITUTE OF FLAX COMPREHENSIVE UTILIZATION HEILONGJIANG ACADEMY OF SCIENCES
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INSTITUTE OF FLAX COMPREHENSIVE UTILIZATION HEILONGJIANG ACADEMY OF SCIENCES
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Abstract

A flax free pollen culture medium and a flax free pollen culture method, belonging to the biotechnology field; its flax free pollen callus induction culture medium HF1Containing 1/2N61.5mg/L2.4D, 0.5 mg/L6-BA; flax free pollen callus differentiation culture medium HF2Containing 1/2N62.0 mg/L6-BA, 0.5 mg/LIAA; flax pollen green seedling rooting culture medium HF3Containing 1/2N60.2mg/LNAA, 0.2 mg/LIAA; the method comprises the following steps of preparing pollen suspension by filtering and centrifugally collecting pollen, inducing pollen callus, inducing pollen green seedling differentiation and rooting culture of the pollen green seedling to finish the culture of the flax free pollen; the invention screens flax free pollen culture medium HF1、HF2And HF3The method for culturing the free pollen of flax is established for the first time, the complex process of ploidy identification of flax is simplified, and the inductivity of the pollen callus, the differentiation rate of the pollen green seedlings and the rooting rate of the pollen green seedlings are obviously higher than those of the prior art.

Description

Flax free pollen medium and flax free pollen cultural method
Technical field
The present invention relates to flax biological technical field, relate generally to flax free pollen culture technique.
Background technology
China's flax Research Work on Anther Culture starts from twentieth century seventies, and from flax anther culture, obtain pollen plant first by China, but the inductivity of flax anther callus and green seedling differentiation rate are very low, and there is a large amount of liploid plants from somatocyte development, bring very big difficulty to the monoploid evaluation, seriously restricted flax haploid breeding process.The cultivation of free pollen has its unique advantages, and at first, free pollen is single sexual cell doubly, the cultivation of free pollen not only can reduce the workload that ploidy is identified, and it also can be used as cell screening system efficiently, makes economical character stable rapidly, avoids offspring's separation.Secondly, it can be used as genetically modified acceptor, by chromosome doubling, makes foreign gene pure and mild fast.In flax free pollen incubation, cultural method and medium are to influence the main external cause condition of differentiation rate that pollen produces callus induction rate and the green seedling of pollen.Therefore, this area presses for and sets up flax free pollen cultural method and medium.
Summary of the invention
Purpose of the present invention just provides a kind of novel flax free pollen medium and flax free pollen cultural method, with reach set up flax free pollen culture systems, further improve the inductivity of flax pollen callus and the green seedling differentiation rate of pollen, accelerate the purpose that flax is cultivated the kind process.
The object of the present invention is achieved like this:
A kind of flax free pollen medium comprises flax free pollen callus inducing culture HF 1, flax free pollen callus differential medium HF 2With the green seedling rooting medium of flax pollen HF 31., flax free pollen callus inducing culture HF, it is characterized in that: 1Contain 1/2N 6, 1.5mg/12.4-D, 0.5mg/L6-BA; 1/2N 6Composition be: potassium nitrate 1415mg/L, ammonium sulfate 231mg/L, magnesium sulfate 92mg/L, calcium chloride 83mg/L, potassium dihydrogen phosphate 200mg/L, boric acid 0.8mg/L, manganese sulphate 2.2mg/L, potassium iodide 0.4mg/L, zinc sulphate 0.75mg/L, glycine 1.0mg/L, thiamine hydrochloride 1.0mg/L, pyridoxine hydrochloride 0.5mg/L, nicotinic acid 0.5mg/L, ferrous sulfate 27.8mg/L, disodium ethylene diamine tetraacetate 37.3mg/L, sucrose 30g/L, agar 8g/L; PH value is 5.5;
2., flax free pollen callus differential medium HF 2Contain 1/2N 6, 2.0mg/L6-BA, 0.5mg/LI AA; 1/2N 6Composition be: potassium nitrate 1415mg/L, ammonium sulfate 231mg/L, magnesium sulfate 92mg/L, calcium chloride 83mg/L, potassium dihydrogen phosphate 200mg/L, boric acid 0.8mg/L, manganese sulphate 2.2mg/L, potassium iodide 0.4mg/L, zinc sulphate 0.75mg/L, glycine 1.0mg/L, thiamine hydrochloride 1.0mg/L, pyridoxine hydrochloride 0.5mg/L, nicotinic acid 0.5mg/L, ferrous sulfate 27.8mg/L, disodium ethylene diamine tetraacetate 37.3mg/L, sucrose 30g/L, agar 8g/L; PH value is 5.5;
3., the green seedling rooting medium of flax pollen HF 3Contain 1/2N 6, 0.2mg/LNAA, 0.2mg/LIAA; 1/2N 6Composition be: potassium nitrate 1415mg/L, ammonium sulfate 231mg/L, magnesium sulfate 92mg/L, calcium chloride 83mg/L, potassium dihydrogen phosphate 200mg/L, boric acid 0.8mg/L, manganese sulphate 2.2mg/L, potassium iodide 0.4mg/L, zinc sulphate 0.75mg/L, glycine 1.0mg/L, thiamine hydrochloride 1.0mg/L, pyridoxine hydrochloride 0.5mg/L, nicotinic acid 0.5mg/L, ferrous sulfate 27.8mg/L, disodium ethylene diamine tetraacetate 37.3mg/L, sucrose 30g/L, agar 8g/L; PH value is 5.5;
A kind of flax free pollen cultural method that uses above-mentioned flax free pollen medium is characterized in that the method comprising the steps of and is:
1., get flax bud that the pollen microspore is in the monokaryon middle and later periods, put into 2% liquor natrii hypochloritis sterilization 15 minutes, use aseptic water washing again 3 times, take out flower pesticide and put into the culture dish that fills sterile water, with the acupuncture method for releasing pollen grain is discharged in the sterile water, again by filtering centrifugal collection pollen;
2., adjust pollen density 5.0 * 10 2Individual/ml, be prepared into pollen suspension, be inoculated into flax pollen callus inducing culture HF 1In, induce pollen callus, be to cultivate under 2000LX, 8 hours/day the condition of light application time at 18-25 ℃, intensity of illumination;
3., when flax pollen callus length to about the 3-5mm, change flax pollen callus differential medium HF over to 2In, induce the differentiation of the green seedling of pollen, be to cultivate under 2000LX, 12 hours/day the condition of light application time at 18-25 ℃, intensity of illumination;
4., the plant that 3. step is obtained changes the green seedling rooting medium of flax pollen HF over to 3In, be that 2000LX, light application time are to cultivate under 15 hours/day the condition at 18-25 ℃, intensity of illumination, can take root successively in general 7-15 days.
Key of the present invention is to have found the suitable culture method, filter out efficient culture medium, this invention is to cultivate on the basis that reaches multiple medium application study at flax pollen for many years, starts with from adjustment macroelement, trace element, plant hormone, filters out flax free pollen medium HF 1, HF 2And HF 3, and set up flax free pollen cultural method first, simplified the complex process that flax ploidy is identified, and with HF 1The pollen callus inductivity of medium, HF 2Green seedling differentiation rate of the pollen of medium and HF 3The green seedling rooting rate of the pollen of medium is all apparently higher than prior art.
Embodiment
Give an actual example below the present invention and implementation result are described in detail.
(1) with 1/2N 6Medium component is the basis, and the concentration by adjusting plant hormone 2.4-D (0.1-3.0mg/L), 6-BA (0.1-3.0mg/L) is also carried out proportioning test, filters out the best inducing culture HF of flax free pollen 1, its hormone combination concentration is 1.5mg/L2.4-D, 0.5mg/L6-BA; Concentration by adjusting plant hormone 6-BA (0.1-3.0mg/L), (0.1-2.0mg/L) I AA is also carried out proportioning test, filters out flax free pollen callus differential medium HF 2, its hormone combination concentration is 1.5mg/L6-BA, 0.5mg/LIAA; Carry out proportioning test by the concentration of adjusting plant hormone NAA (0-0.5mg/L), (0-0.5mg/L) I AA, filter out flax pollen plant root media HF 3, its hormone combination concentration is 0.2mg/LNAA, 0.2mg/LIAA;
(2) inducing culture HF 1Middle flax free pollen callus inductivity.
We inoculate flax pollen of 5 hybrid combinations.(pollen density is 5.0 * 10 to 5 each 2ml pollen suspensions of hybrid combination 2Individual/as ml) to be seeded in HF respectively 1On the medium, carry out inducing of pollen callus, at 18-25 ℃, intensity of illumination is 2000LX, and light application time 8 hours was cultivated 15-30 days, and experimental result shows medium HF 1The inductivity of pollen callus is 20.6-30.8%.
Table 2 medium HF 1Middle Different Cross Combinations is to the influence of pollen callus inductivity
The hybrid combination code name Inoculation pollen number (individual) Callus (piece) Callus induction rate (%)
9601 1000 308 30.8
9605 1000 286 28.6
9712 1000 251 25.1
9715 1000 206 20.6
9718 1000 219 21.9
(3) HF 1With MS, B 5, N 6The medium contrast experiment.
The pollen of getting same hybrid combination is seeded in MS, B 5, N 6, HF 1On the medium, every kind of medium is all inoculated 4ml pollen suspension pollen suspension, and (pollen density is 5.0 * 10 2Individual/ml), hormone combination is 1.5mg/L2.4-D, 0.5mg/L6-BA in four kinds of medium.At 18-25 ℃, intensity of illumination is 2000LX, and light application time 8 hours was cultivated 15-30 days, and experimental result shows: HF 1, MS, B 5, N 6The inductivity of four kinds of medium pollen callus is respectively 29.7%, 6.2%, 8.6%, 18.5%.With HF 1Medium pollen callus inductivity is the highest.
The different medium of table 3 are to the influence of pollen callus inductivity
Medium Inoculation pollen number (individual) Pollen callus (piece) Pollen callus inductivity (%)
HF 1 2000 594 29.7
MS 2000 124 6.2
B 5 2000 172 8.6
N 6 2000 370 18.5
(4) the green seedling differentiation of flax pollen.When pollen callus length to about the 3-5mm, change flax pollen callus differential medium HF over to 2In, induce the differentiation of the green seedling of pollen.Flax pollen callus of having tested 5 hybrid combinations is at medium HF 2The differentiation situation of the middle green seedling of pollen.Condition of culture is temperature 18-25 ℃, and intensity of illumination is 2000LX, and light application time 12 hours was cultivated 20-30 days, and the differentiation rate of the green seedling of statistics pollen.Table 4 experimental result shows: HF 2The green seedling differentiation rate of the pollen of medium is 4.5-11.5%.
The callus of table 4 Different Cross Combinations is at HF 2The green seedling differentiation rate of pollen in the medium
The hybrid combination code name Callus (piece) Green seedling number The green seedling differentiation rate of pollen (%)
9601 200 9 4.5
9605 200 15 7.5
9712 200 18 8.0
9715 200 13 6.6
9718 200 23 11.5
(5) flax pollen plant root media HF 3, when the green seedling length of pollen arrives the 5cm left and right sides, forward it to HF 3In the medium, at 18-25 ℃, intensity of illumination is 2000LX, and light application time was cultivated under the condition in 15 hours.Corotation moves the experiment of taking root of 568 green seedlings of pollen, and 541 seedling rootings are arranged, and rooting rate reaches 95.2%.

Claims (2)

1, a kind of flax free pollen medium comprises flax free pollen callus inducing culture HF 1, flax free pollen callus differential medium HF 2With the green seedling rooting medium of flax pollen HF 31., flax free pollen callus inducing culture HF, it is characterized in that: 1Contain 1/2N 6, 1.5mg/L2.4-D, 0.5mg/L6-BA; 1/2N 6Composition be: potassium nitrate 1415mg/L, ammonium sulfate 231mg/L, magnesium sulfate 92mg/L, calcium chloride 83mg/L, potassium dihydrogen phosphate 200mg/L, boric acid 0.8mg/L, manganese sulphate 2.2mg/L, potassium iodide 0.4mg/L, zinc sulphate 0.75mg/L, glycine 1.0mg/L, thiamine hydrochloride 1.0mg/L, pyridoxine hydrochloride 0.5mg/L, nicotinic acid 0.5mg/L, ferrous sulfate 27.8mg/L, disodium ethylene diamine tetraacetate 37.3mg/L, sucrose 30g/L, agar 8g/L;
2., flax free pollen callus differential medium HF 2Contain 1/2N 6, 2.0mg/L6-BA, 0.5mg/LIAA; 1/2N 6Composition be: potassium nitrate 1415mg/L, ammonium sulfate 231mg/L, magnesium sulfate 92mg/L, calcium chloride 83mg/L, potassium dihydrogen phosphate 200mg/L, boric acid 0.8mg/L, manganese sulphate 2.2mg/L, potassium iodide 0.4mg/L, zinc sulphate 0.75mg/L, glycine 1.0mg/L, thiamine hydrochloride 1.0mg/L, pyridoxine hydrochloride 0.5mg/L, nicotinic acid 0.5mg/L, ferrous sulfate 27.8mg/L, disodium ethylene diamine tetraacetate 37.3mg/L, sucrose 30g/L, agar 8g/L;
3., the green seedling rooting medium of flax pollen HF 3Contain 1/2N 6, 0.2mg/LNAA, 0.2mg/LIAA; 1/2N 6Composition be: potassium nitrate 1415mg/L, ammonium sulfate 231mg/L, magnesium sulfate 92mg/L, calcium chloride 83mg/L, potassium dihydrogen phosphate 200mg/L, boric acid 0.8mg/L, manganese sulphate 2.2mg/L, potassium iodide 0.4mg/L, zinc sulphate 0.75mg/L, glycine 1.0mg/L, thiamine hydrochloride 1.0mg/L, pyridoxine hydrochloride 0.5mg/L, nicotinic acid 0.5mg/L, ferrous sulfate 27.8mg/L, disodium ethylene diamine tetraacetate 37.3mg/L, sucrose 30g/L, agar 8g/L.
2, a kind of use flax free pollen cultural method of flax free pollen medium according to claim 1 is characterized in that the method comprising the steps of and is:
1., get flax bud that the pollen microspore is in the monokaryon middle and later periods, put into 2% liquor natrii hypochloritis sterilization 15 minutes, use aseptic water washing again 3 times, take out flower pesticide and put into the culture dish that fills sterile water, with the acupuncture method for releasing pollen grain is discharged in the sterile water, again by filtering centrifugal collection pollen;
2., adjust pollen density 5.0 * 10 2Individual/ml, be prepared into pollen suspension, be inoculated into flax pollen callus inducing culture HF 1In, induce pollen callus, be to cultivate under 2000LX, 8 hours/day the condition of light application time at 18-25 ℃, intensity of illumination;
3., when flax pollen callus length to about the 3-5mm, change flax pollen callus differential medium HF over to 2In, induce the differentiation of the green seedling of pollen, be to cultivate under 2000LX, 12 hours/day the condition of light application time at 18-25 ℃, intensity of illumination;
4., the plant that 3. step is obtained changes the green seedling rooting medium of flax pollen HF over to 3In, be that 2000LX, light application time are to cultivate under 15 hours/day the condition at 18-25 ℃, intensity of illumination.
CN2008100647514A 2008-06-18 2008-06-18 Flax free farina culture medium and flax free farina culture method Expired - Fee Related CN101292629B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101531990B (en) * 2009-04-15 2011-06-01 黑龙江省科学院大庆分院 Flax monoploid cell suspension system culture medium
CN102119662A (en) * 2010-12-24 2011-07-13 黑龙江八一农垦大学 Polyploidy induction method for fiber linum usitatissimum under isolated culture condition
CN103396981A (en) * 2013-07-01 2013-11-20 镇江瑞繁农艺有限公司 In vitro culture and vitality determination method for water lily pollen
CN103421737A (en) * 2013-06-04 2013-12-04 塔里木大学 Culture medium for promoting germination of Amygdalus L. pollen, culture method and application thereof
CN107114245A (en) * 2017-06-29 2017-09-01 成都苗夫现代苗木科技有限公司 One grows flax tissue culture method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101531990B (en) * 2009-04-15 2011-06-01 黑龙江省科学院大庆分院 Flax monoploid cell suspension system culture medium
CN102119662A (en) * 2010-12-24 2011-07-13 黑龙江八一农垦大学 Polyploidy induction method for fiber linum usitatissimum under isolated culture condition
CN102119662B (en) * 2010-12-24 2012-06-06 黑龙江八一农垦大学 Polyploidy induction method for fiber linum usitatissimum under isolated culture condition
CN103421737A (en) * 2013-06-04 2013-12-04 塔里木大学 Culture medium for promoting germination of Amygdalus L. pollen, culture method and application thereof
CN103421737B (en) * 2013-06-04 2015-04-15 塔里木大学 Culture medium for promoting germination of Amygdalus L. pollen, culture method and application thereof
CN103396981A (en) * 2013-07-01 2013-11-20 镇江瑞繁农艺有限公司 In vitro culture and vitality determination method for water lily pollen
CN103396981B (en) * 2013-07-01 2015-04-29 镇江瑞繁农艺有限公司 In vitro culture and vitality determination method for water lily pollen
CN107114245A (en) * 2017-06-29 2017-09-01 成都苗夫现代苗木科技有限公司 One grows flax tissue culture method

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