CN106434524B - A kind of Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas - Google Patents

A kind of Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas Download PDF

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CN106434524B
CN106434524B CN201610873780.XA CN201610873780A CN106434524B CN 106434524 B CN106434524 B CN 106434524B CN 201610873780 A CN201610873780 A CN 201610873780A CN 106434524 B CN106434524 B CN 106434524B
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宋兆霞
谭兴江
张瑞明
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Anhui Xuanzhijie Agricultural Development Co ltd
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Abstract

The present invention provides a kind of Isolated Microspore in Chinese Cabbage induced medium, formula contains KNO3、MgSO4∙7H2O、KH2PO4、Ca(NO3)2∙4H2O、Na2‑EDTA、FeSO4∙7H2O、MnSO4∙4H2O、AgNO3、H3BO3、ZnSO4∙7H2O、KI、Na2MoO4∙2H2O、CuSO4∙5H2O、CoCl2∙6H2O, L-Glutamine, vitamin B1, vitamin B6, niacin, folic acid, biotin, inositol, glycine, proline, serine, l-Glutathione, methyl-nitroso-urea, sucrose, plant gel, 6-BA, multiple phthalein nucleic acid, protein hydrolysate, colchicin, active carbon and plant vulcanize kinetin PSK- α.The culture medium can greatly improve the induced efficiency of Isolated Microspore in Chinese Cabbage embryo callus, have important application value.

Description

A kind of Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas
Technical field
The present invention relates to a kind of Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas, and in particular to one kind can greatly improve Isolated Microspore in Chinese Cabbage induction is the culture medium prescription of embryo callus efficiency, belongs to vegetable cultivation high-technology field.
Background technique
Chinese cabbage (Brassica campestris ssp. pekinensisLour.) belong to Cruciferae Brassica genus rue A kind of sedge kind Chinese cabbage subspecies are a kind of important vegetables for originating in China.Chinese cabbage ecotype multiplicity, distribution is wide, yield Height, storage tolerance, the supply phase is long, and nutrition is comprehensive, eating method multiplicity, and plants simple, saving of labor, at low cost, in China's vegetable basket It is middle to occupy irreplaceable critical role.The cultivated area and yield of China Chinese cabbage are Chinese cabbage first of various vegetable crops Production occupies leading position in vegetable production.Due to history, ecology, production and consumption habit difference, northern China Area is the main producing region of Chinese cabbage.
With the improvement of people's life quality, to Chinese cabbage quality, higher requirements are also raised, and just there is an urgent need to educate for this Kind worker selects more high-quality, disease-resistant, high yield excellent variety.Chinese cabbage is cross-pollinatd plant, is had significant Hybrid vigour mainly carries out New Chinese Cabbage Variety cultivation using cross breeding method at present.Conventional hybridization breeding method is bred as A series of Chinese cabbage cultivars are made that brilliant contribution for vegetables production.However, there are the periods for Chinese cabbage crossing breeding method The outstanding problems such as length, low efficiency are bred as a stable Elite inbred and generally require 6-8, or even longer time, breeding selfing System is very bothersome, takes a lot of work.Recently as the increase of cost of labor, the deficiency of conventional breeding is increasingly obvious in actual operation. Therefore, scholars begin look for the new way and new method of breeding.
Microspore-isolated culture refers to that free, fresh microspore group is directly obtained from bud or flower medicine to carry out Culture, via the induction of embryoid or callus, regenerates complete haplobiont, using artificial or Natural double, Technology as normal fertile, homozygous liploid plant.Microspore-isolated culture has pure haploidy, unicellular property and culture The features such as cell quantity is big, therefore increasingly by the favor of breeder.The technology can be obtained for breeding in 1-2 Elite inbred and the not affine pure lines of selfing, therefore it is substantially shorter the breeding time limit, to improve breeding efficiency.Isolated microspore Culture technique, more successful research field is grass family and Solanaceae at present, and a variety of grass family and solanaceous crops are proved to be successful Efficient induction and differentiated system out.The isolated microspore culture technique of brassicaceous vegetable has also carried out a series of researchs, right The embryogenetic mechanism of Chinese cabbage microspore, influence factor have done a large amount of research and probe, and achieve many important researchs Progress.
The Isolated Microspore in Chinese Cabbage culture studies in China start from the late 1980s.1988, agriculture section, Henan Province Institute Horticultural Research Institute Li Genyi etc. at home for the first time induces Isolated Microspore in Chinese Cabbage at embryo and embryo reproductive success.Then, river The technology is applied to the culture of DH pure lines and parent material by the academy of agricultural sciences Nan Sheng, has successfully been bred as Henan Chinese cabbage No. 7, has been become domestic and international The new varieties that first Isolated Microspore in Chinese Cabbage cultural method is cultivated.Later, and successively 14 are selected by above the provincial level Examine (mirror) fixed different type New Chinese Cabbage Variety, wherein Henan Chinese cabbage No. 7 between 1994-1997 popularizing area reach 3.01 ten thousand hm2.The Vegetable Research center of Beijing in 2002 is special using the Exocarpium Citri Rubrum heart kind acquisition country invention that microspore culture is bred as Benefit.Although Isolated Microspore in Chinese Cabbage culture breeding technique achieves a series of research progress, Henan Chinese cabbage No. 7, Henan are also cultivated New No. 3, Yuyuan Garden 5, the excellent variety such as the Exocarpium Citri Rubrum heart, but Isolated Microspore Culture in Chinese cabbage and not perfect, mainly greatly The problems such as Chinese cabbage Isolated microspore inductivity is not high, and embryoid planting percent is low is never well solved.Microspore lures Low will lead to of conductance is difficult to obtain enough selection groups, directly limits Isolated Microspore Culture in Chinese cabbage in breeding Application.
Culture medium is the material base of microspore-isolated culture, is directly related to the growth and differentiation of microspore, culture medium Stimulation and starting of the component to microspore, are the factors that can Isolated microspore induce successful most critical.Nutrient media components Appropriate proportioning, can significantly affect microspore induced efficiency, and some organic and inorganic additive can significantly improve microspore induction Efficiency.Studies have found that, relative to grass family and solanaceous crops, the minimal medium formula of low ion concns is to cruciate flower at present Section microspore induces advantageously, and amino acid and active carbon can significantly improve the inducibility of Isolated Microspore in Chinese Cabbage.Cause This, continues optimum organization minimal medium proportion, excavates and test is directed to and improves Isolated Microspore in Chinese Cabbage into embryonal induction energy The organic-inorganic additive of power is the key that establish the efficient Fiber differentiation system of Isolated Microspore in Chinese Cabbage.
Summary of the invention
The object of the present invention is to provide the inductions that one kind can greatly improve Isolated Microspore in Chinese Cabbage embryo callus Efficiency, the Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas with important application value.
The purpose of the present invention is what is solved by the following technical programs:
A kind of Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas, it is characterised in that: the formula of the culture medium is as follows:
KNO356-64mg/L, MgSO4∙7H2O 60-65mg/L, KH2PO465-70mg/L, Ca (NO3)2∙4H2O 200- 250mg/L, Na2- EDTA 11-14mg/L, FeSO4∙7H2O 12-15mg/L, MnSO4∙4H2O 23-27mg/L, AgNO3 7- 9mg/L, H3BO38.0-8.5mg/L, ZnSO4∙7H2O 8.5-9.5mg/L, KI 0.4-0.45mg/L, Na2MoO4∙2H2O 0.2-0.3mg/L, CuSO4∙5H2O 0.02-0.03mg/L, CoCl2∙6H2O 0.02-0.03mg/L, L-Glutamine 750- 850mg/L, vitamin B1 0.45-0.55mg/L, vitamin B6 0.45-0.55mg/L, niacin 4.5-5.5mg/L, folic acid 0.04-0.06mg/L, biotin 0.04-0.06mg/L, inositol 90-110mg/L, glycine 3.5-4.5mg/L, proline 17-23mg/L, serine 70-90mg/L, l-Glutathione 27-33mg/L, methyl-nitroso-urea 1.2-1.8g/L, sucrose 120-140g/L, plant gel 3.0-3.5g/L, 6-BA 0.2-0.3mg/L, multiple phthalein nucleic acid 0.15-0.25mg/L, hydrolyze egg White 0.5-0.7g/L, colchicin 0.06-0.08mg/L, active carbon 0.04-0.06g/L, plant vulcanize kinetin PSK- α 30-40pmol/L, pH 5.6-5.8.
The present invention has the following advantages compared with prior art:
The present invention is directed to the spore of Isolated Microspore in Chinese Cabbage according to grass family and Solanaceae microspore Fiber differentiation based formulas Daughter developmental characteristic continues to optimize and combine minimal medium proportion, and low ion concns minimal medium assembles, and is conducive to big The induction of Chinese cabbage Isolated microspore;Using the plant gel of low content, make the culture medium semisolid being configured to, Chinese cabbage is swum It is more advantageous from the induction of microspore;It excavates and test is directed to raising Isolated Microspore in Chinese Cabbage and adds at the organic of embryonal induction ability Add object and inorganic additive, protein hydrolysate, L-Glutamine, folic acid, glycine, proline, serine, l-Glutathione, first The addition of the suitable concentrations of substances such as base nitroso ureas, colchicin, active carbon, plant vulcanization kinetin PSK- α, difference journey The inductivity for improving Isolated Microspore in Chinese Cabbage of degree;The compounding of 6-BA and multiple phthalein nucleic acid, it is free to significantly improve Chinese cabbage The inducibility of microspore.
Isolated Microspore in Chinese Cabbage induced medium provided by the present invention is now studies have found that enterprising the one of basis The achievement of the creative improvement of step, is the optimum combination screened by a large amount of single-factors, multifactor experiment, We conducted a large amount of Experimental study also show that component proportion of the invention is optimal.It can be greatly improved using culture medium provided by the present invention The induced efficiency of free Chinese cabbage microspore embryo callus, therefore industry promotional value with higher.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.
A kind of Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas, it is characterised in that: the formula of the culture medium is as follows:
KNO356-64mg/L, MgSO4∙7H2O 60-65mg/L, KH2PO465-70mg/L, Ca (NO3)2∙4H2O 200- 250mg/L, Na2- EDTA 11-14mg/L, FeSO4∙7H2O 12-15mg/L, MnSO4∙4H2O 23-27mg/L, AgNO3 7- 9mg/L, H3BO38.0-8.5mg/L, ZnSO4∙7H2O 8.5-9.5mg/L, KI 0.4-0.45mg/L, Na2MoO4∙2H2O 0.2-0.3mg/L, CuSO4∙5H2O 0.02-0.03mg/L, CoCl2∙6H2O 0.02-0.03mg/L, L-Glutamine 750- 850mg/L, vitamin B1 0.45-0.55mg/L, vitamin B6 0.45-0.55mg/L, niacin 4.5-5.5mg/L, folic acid 0.04-0.06mg/L, biotin 0.04-0.06mg/L, inositol 90-110mg/L, glycine 3.5-4.5mg/L, proline 17-23mg/L, serine 70-90mg/L, l-Glutathione 27-33mg/L, methyl-nitroso-urea 1.2-1.8g/L, sucrose 120-140g/L, plant gel 3.0-3.5g/L, 6-BA 0.2-0.3mg/L, multiple phthalein nucleic acid 0.15-0.25mg/L, hydrolyze egg White 0.5-0.7g/L, colchicin 0.06-0.08mg/L, active carbon 0.04-0.06g/L, plant vulcanize kinetin PSK- α 30-40pmol/L, pH 5.6-5.8.
In the Chinese cabbage flowering stage in 4-5 month, the bud of 2.2mm-3.0mm is taken to take back laboratory, is placed in 4 DEG C of refrigerators Cold pretreatment 1-2d.Before inoculation, bud is transferred in superclean bench sterile beaker, 70% alcohol progress surface is poured into and disappears Poison outwells alcohol after impregnating 1min, adds 0.1% mercuric chloride solution soaking disinfection 10min, then three times with aseptic water washing Sufficiently to remove mercury chloride residual hazard.After draining away the water, bud is rolled with tack glass rod in B5 liquid scrubbing culture medium, is squeezed out small Spore.Suspension collects filtrate and is centrifuged 3min under 10ml centrifuge tube, 1000rpm, precipitate through 30 μm of sterile micropore filtered through gauze Object adds 5mL B5 to wash culture medium, shakes up, is centrifuged 2min under 800rpm, is repeated twice, and gained sediment is that Chinese cabbage is free Microspore.Isolated Microspore in Chinese Cabbage is transferred in Isolated Microspore in Chinese Cabbage induced medium of the invention, 33 DEG C of heat shocks Processing is transferred to 25 DEG C of dark cultures afterwards for 24 hours until embryo callus is formed.
Embodiment
A kind of Isolated Microspore in Chinese Cabbage induced medium of the present invention is prepared, culture medium prescription is specific as follows:
KNO360mg/L, MgSO4∙7H2O 62.5mg/L, KH2PO467.5mg/L, Ca (NO3)2∙4H2O 225mg/L, Na2- EDTA 12.5mg/L, FeSO4∙7H2O 13.5mg/L, MnSO4∙4H2O 25mg/L, AgNO38mg/L, H3BO3 8.25mg/L ZnSO4∙7H2O 9.0mg/L, KI 0.425mg/L, Na2MoO4∙2H2O 0.25mg/L, CuSO4∙5H2O 0.025mg/L, CoCl2∙6H2O 0.025mg/L, L-Glutamine 800mg/L, vitamin B1 0.5mg/L, vitamin B6 0.5mg/L, niacin 5mg/L, folic acid 0.05mg/L, biotin 0.05mg/L, inositol 100mg/L, glycine 4mg/L, dried meat Propylhomoserin 20mg/L, serine 80mg/L, l-Glutathione 30mg/L, methyl-nitroso-urea 1.5g/L, sucrose 130g/L, Plant gel 3.25g/L, 6-BA 0.25mg/L, multiple phthalein nucleic acid 0.2mg/L, protein hydrolysate 0.6g/L, colchicin 0.07mg/L, active carbon 0.05g/L, plant vulcanize kinetin PSK- α 35pmol/L, pH 5.7.
In April, 2015 in white No. 17 of Chinese cabbage cultivar Shandong and all-victorious flowering stage, takes the Shandong of 2.2mm-3.0mm white 17 Number and all-victorious bud take back laboratory, be placed in Cold pretreatment 2d in 4 DEG C of refrigerators.Before inoculation, bud is transferred to ultra-clean work In platform sterile beaker, pours into 70% alcohol and carry out surface sterilization, outwell alcohol after impregnating 1min, add 0.1% mercuric chloride solution Soaking disinfection 10min, then with aseptic water washing three times sufficiently to remove mercury chloride residual hazard.After draining away the water, washed in B5 liquid It washs in culture medium and rolls bud with tack glass rod, squeeze out microspore.Suspension collects filtrate through 30 μm of sterile micropore filtered through gauze 3min is centrifuged under 10ml centrifuge tube, 1000rpm, sediment adds 5mL B5 to wash culture medium, shakes up, be centrifuged under 800rpm 2min is repeated twice, and gained sediment is Isolated Microspore in Chinese Cabbage.By white No. 17 of Shandong and all-victorious Isolated microspore difference It is transferred in Isolated Microspore in Chinese Cabbage induced medium of the invention, 33 DEG C of Heat thermostabilities are transferred to 25 DEG C of dark cultures, embryo afterwards for 24 hours Property callus formed after count white No. 17 of Shandong and all-victorious microspore callus induction rate respectively.Microspore callus lures Conductance=callus block number/inoculation bud sum × 100%.
The culture medium pair used for Isolated Microspore in Chinese Cabbage induced medium more provided by the present invention and forefathers The difference of Isolated Microspore in Chinese Cabbage embryonic callus induction efficiency, in addition we have selected 2 kinds of forefathers to adopt used great Bai Dish Isolated microspore induced medium, test variety also use Shandong white No. 17 and all-victorious, the separation method of Isolated microspore, tissue culture Operating method, cultural method are all the same, embryo callus counted respectively after being formed white No. 17 of Shandong and all-victorious microspore this 2 Microspore callus induction rate in kind culture medium.
Other 2 kinds of Isolated Microspore in Chinese Cabbage Fiber differentiation based formulas are as follows:
NLH minimal medium+30mg/L glutathione+100mg/L serine+800mg/L glutamine+0.4mg/L 6- BA, pH are 5.8(documents from Han Yang etc. " Chinese cabbage microspores culture Study on influencing factors ");
NLN-13 culture medium+0.1g/L active carbon, pH are 5.8(documents from " the small robe training of Chinese cabbage such as Sun Dan Support regeneration strain and its otherness preliminary analysis ").
Culture medium comparative experiments
It will be using white No. 17 of culture medium provided by the present invention induction Shandong and all-victorious Isolated microspore statistics gained microspore Callus induction rate and the Shandong of comparative example white No. 17 and all-victorious microspore callus induction rate are compared, and are compared As a result as shown in table 1 below.
By table 1 it can be found that Isolated Microspore in Chinese Cabbage induced medium provided by the present invention is to Chinese cabbage cultivar Shandong White No. 17 have reached 30.2/flower bud with all-victorious microspore callus induction rate average value, and two kinds of trainings used by forefathers Support No. 17 white to Chinese cabbage cultivar Shandong of base and all-victorious microspore callus induction rate average value respectively and be only 9.2/flower bud and 13.0/flower bud, it can be found that Isolated Microspore in Chinese Cabbage induced medium provided by the present invention is to Isolated Microspore in Chinese Cabbage Inducibility be made that and be obviously improved.
Isolated Microspore in Chinese Cabbage induced medium provided by the present invention is now studies have found that enterprising the one of basis The achievement of the creative improvement of step, is the optimum combination screened by a large amount of single-factors, multifactor experiment, We conducted a large amount of Experimental study also show that component proportion of the invention is optimal.It can be greatly improved using culture medium provided by the present invention The induced efficiency of free Chinese cabbage microspore embryo callus, therefore industry promotional value with higher.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention Within;The technology that the present invention is not directed to can be realized by the prior art.

Claims (1)

1. a kind of Isolated Microspore in Chinese Cabbage induced medium, it is characterised in that: the formula of the culture medium is as follows:
KNO356-64mg/L, MgSO4∙7H2O 60-65mg/L, KH2PO465-70mg/L, Ca (NO3)2∙4H2O 200- 250mg/L, Na2- EDTA 11-14mg/L, FeSO4∙7H2O 12-15mg/L, MnSO4∙4H2O 23-27mg/L, AgNO3 7- 9mg/L, H3BO38.0-8.5mg/L, ZnSO4∙7H2O 8.5-9.5mg/L, KI 0.4-0.45mg/L, Na2MoO4∙2H2O 0.2-0.3mg/L, CuSO4∙5H2O 0.02-0.03mg/L, CoCl2∙6H2O 0.02-0.03mg/L, L-Glutamine 750- 850mg/L, vitamin B1 0.45-0.55mg/L, vitamin B6 0.45-0.55mg/L, niacin 4.5-5.5mg/L, folic acid 0.04-0.06mg/L, biotin 0.04-0.06mg/L, inositol 90-110mg/L, glycine 3.5-4.5mg/L, proline 17-23mg/L, serine 70-90mg/L, l-Glutathione 27-33mg/L, methyl-nitroso-urea 1.2-1.8g/L, sucrose 120-140g/L, plant gel 3.0-3.5g/L, 6-BA 0.2-0.3mg/L, multiple phthalein nucleic acid 0.15-0.25mg/L, hydrolyze egg White 0.5-0.7g/L, colchicin 0.06-0.08mg/L, active carbon 0.04-0.06g/L, plant vulcanize kinetin PSK- α 30-40pmol/L, pH 5.6-5.8;The kind of the Chinese cabbage is Shandong white No. 17 and complete victory.
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