CN100433971C - Method for regenerating bitter herbs corm by in-vitro culture - Google Patents

Method for regenerating bitter herbs corm by in-vitro culture Download PDF

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Publication number
CN100433971C
CN100433971C CNB2006100393449A CN200610039344A CN100433971C CN 100433971 C CN100433971 C CN 100433971C CN B2006100393449 A CNB2006100393449 A CN B2006100393449A CN 200610039344 A CN200610039344 A CN 200610039344A CN 100433971 C CN100433971 C CN 100433971C
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China
Prior art keywords
bitter herbs
corm
plant
bitter
present
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Expired - Fee Related
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CNB2006100393449A
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Chinese (zh)
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CN1826877A (en
Inventor
安树青
郑丽屏
周长芳
关保华
蒋金辉
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Nanjing University
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Nanjing University
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Abstract

The present invention belongs to the technical field of plant tissue culture. The excellent cultivating seedlings of bitter herbs are produced in a large-scale way by the method for regenerating bitter herbs corm by in-vitro culture. The present invention can overcome the defects that vegetable seed seedlings have low survival rate under the natural condition, the germination of winter buds is largely influenced by the thickness of the soil layer, and a large number of live winter buds in the soil layer can not be germinated to strains. The present invention can satisfy the active demands for reconstructing domestic aquatic vegetation, reducing water body pollution, and releasing water eutrophication.

Description

Method for regenerating bitter herbs corm by in-vitro culture
One, technical field
The invention belongs to field of plant tissue culture technique.
Two, background technology
China's aquatic ecosystem seriously polluted, the decline of quality of water environment has caused heavy damage to living aquatic resources, recover the balance of aquatic ecosystem, purifies water, and promotes fisheries development, introduces a fine variety the water body purification plant, and is significant.
Eel grass is heavy this plant of pasture and water of Hydrocharctaceae Hydrocharitaceae Vallisneria Vallisneria, and eel grass is nutritious, composition is complete, is the important bait of herbivorous fishes and zoobenthos; The eel grass hibernaculum is the important foodstuffs that some wild rare birds survive the winter period; The eel grass annidation is wide, and absorption dirt ability is strong, is to reduce water pollution, alleviates the important submerged plant of water body eutrophication degree; The destroyed back of its plant corpus is short recovery time, thereby is again the emphasis alternative of rebuilding aquatic vegetation.But it is low that this plant seed seedling is settled down survival rate under field conditions (factors), and hibernaculum sprouts and is subjected to the influence of soil thickness big, and life hibernaculums a large amount of in the soil layer can not sprout into the eel grass plant, is difficult to large-scale breeding and promotes.
Still the relevant report of not having the research of eel grass tissue culture technique at present both at home and abroad.
Three, summary of the invention
The objective of the invention is: the method for inventing a kind of large-scale production eel grass high-quality tissue cultivating seedling, to settle down survival rate under field conditions (factors) low to overcome this plant seed seedling, hibernaculum sprouts and is subjected to the influence of soil thickness big, life hibernaculums a large amount of in the soil layer can not sprout into the eel grass plant, the drawback that the retardance large-scale breeding is promoted, adapting to China rebuilds in the aquatic vegetation work, emphasis selects eel grass to reduce water pollution, what the alleviation water body eutrophication degree was introduced a fine variety presses for, thereby recover good aquatic ecological environment, promote China's sustainable development of fishery.
Technical scheme of the present invention is:
Selection, adjustment by different explants improve the factors such as explant sterilization treatment conditions and medium state, are obtaining success aspect brownization of checking explant and the pollution.Selecting suitable explant and setting up sterile system is the key that can the work of decision tissue culture be carried out.
Utilize bitter herbs corm to carry out callus induction and cultivate,, its callus induction frequency is reached more than 80% by the selection and the hormone regulating and controlling of medium.
From the callus regeneration whole plant is the key of tissue-culturing rapid propagation success.By adjusting the factors such as hormone condition, nitrogenous source and organic compound, obtained the eel grass regeneration plant.
The present invention has set up eel grass callus regeneration system, changes differentiation over to from callus, and plant regeneration frequency is 90%.
On the basis of above research, the propagation method that this invention has been set up bitter herbs corm cultured in vitro regrowth is as follows:
(1) adding 2, under the 4-D hormone condition by the bitter herbs corm evoked callus;
(2) adding under the BA hormone condition inducing culture regeneration plant;
(3) adding under the NAA hormone condition, turn out the complete regeneration plant of taking root;
This propagation method stable performance, the test good reproducibility, the test tube regrowth breaks up, the proterties of growing thickly is good.The medium of each cultivation stage and hormone combination such as following table:
The regenerate hormone in medium prescription in each stage of bitter herbs corm cultured in vitro
The group training stage The hormone in medium composition
Callus induction 2,4-D 0.5mg/L
Plant regeneration BA2.0mg/L,
Plant takes root NAA 0.1mg/L,IBA0.1mg/L,
In the test-tube plantlet production process, the minimal medium of each cultivation stage is MS macroelement, trace element, B5 vitamin, sucrose 3%, Gelrite or Phytagel 0.2%.
Adopting this technical system, is explant with the bitter herbs corm, and callus induction rate is more than 80%; The frequency of callus plantlet reaches 90%; The rooting rate of test-tube plantlet reaches 100%.
Effect of the present invention is: adopting this technical system, is explant with the bulb, and callus induction rate is more than 80%; The frequency of callus plantlet reaches 90%; The rooting rate of test-tube plantlet reaches 100%.
Inducing culture research by somatic embryo, the test-tube plantlet of large-scale production eel grass, and, be beneficial to promotion development with the agronomy quality of technological means such as tissue culture improvement eel grass.Eel grass is nutritious, composition is complete, is the important bait of herbivorous fishes and zoobenthos; Its hibernaculum is Fresh ﹠ Tender in Texture, is the good food item of wild bird, particularly some rare birds such as white stork, the important foodstuffs in the periods of surviving the winter such as black stork, swan and hoary hair crane, and in addition, according to the Compendium of Material Medica record, eel grass has obvious medicinal value; The eel grass part of growing thickly is the good habitat and the first-class farmland green manure of crab class; The more important thing is that the eel grass annidation is wide, absorption dirt ability is strong, is to reduce water pollution, alleviates the important submerged plant of water body eutrophication degree; The destroyed back of its plant corpus is short recovery time, thereby is again the emphasis alternative of rebuilding aquatic vegetation.Have good feed concurrently, recover the characteristics of aquatic vegetation and purifying water body, the demand side that make it in the lake, continuable fishery system is developed in the pond will be accomplished something.
Four, embodiment
This method is carried out in the Plant Tissue Breeding chamber, has successively cultivated three batches of about 12000 strain eel grass engineering seedlings.Its concrete mode is: based on the MS minimal medium, utilize bitter herbs corm to carry out callus induction and cultivate, adding 2, by the bitter herbs corm evoked callus, its callus induction frequency reaches more than 80% under the 4-D hormone condition.Adding under the BA hormone condition inducing culture regeneration plant; Plant regeneration frequency is 90%.Adding under NAA and the IBA hormone condition, turn out the complete regeneration plant of taking root; The rooting rate of test-tube plantlet reaches 100%.

Claims (1)

1, a kind of bitter herbs corm cultured in vitro propagation method, it is characterized in that utilizing bitter herbs corm to carry out callus induction cultivates, turn out complete eel grass test-tube plantlet, its concrete grammar is: with MS macroelement, trace element, B5 vitamin, sucrose 3%, Gelrite or Phytagel 0.2% medium are the basis, adding 0.5mg/L 2, under the 4-D hormone condition by the bitter herbs corm evoked callus; Adding under the 2.0mg/L BA hormone condition inducing culture regeneration plant; Adding under 0.1mg/L IBA and the 0.1mg/L NAA hormone condition, turn out the complete regeneration plant of taking root.
CNB2006100393449A 2006-04-06 2006-04-06 Method for regenerating bitter herbs corm by in-vitro culture Expired - Fee Related CN100433971C (en)

Priority Applications (1)

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CNB2006100393449A CN100433971C (en) 2006-04-06 2006-04-06 Method for regenerating bitter herbs corm by in-vitro culture

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CNB2006100393449A CN100433971C (en) 2006-04-06 2006-04-06 Method for regenerating bitter herbs corm by in-vitro culture

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CN100433971C true CN100433971C (en) 2008-11-19

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102577936B (en) * 2012-02-14 2014-04-23 上海市崇明水生水环境研究所 Seed selection method for short flower-free tape grass
CN107333658A (en) * 2017-09-13 2017-11-10 中冶华天工程技术有限公司 A kind of quick-breeding method of the close thorn eel grass engineering seedling of hormone induction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1426966A (en) * 2001-12-17 2003-07-02 中国科学院武汉植物研究所 Method of restoring nutrition enriched shallow lake aquatic vegetation
CN1586174A (en) * 2004-07-23 2005-03-02 中国科学院武汉植物园 Method for quick breeding eel grass
CN1590319A (en) * 2003-08-28 2005-03-09 陈卫民 Method of making lake rich nutrition using eel grass
CN1623374A (en) * 2004-12-14 2005-06-08 南京大学 Eel grass root stem sterile culturing and engineering seedling fast reproducing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1426966A (en) * 2001-12-17 2003-07-02 中国科学院武汉植物研究所 Method of restoring nutrition enriched shallow lake aquatic vegetation
CN1590319A (en) * 2003-08-28 2005-03-09 陈卫民 Method of making lake rich nutrition using eel grass
CN1586174A (en) * 2004-07-23 2005-03-02 中国科学院武汉植物园 Method for quick breeding eel grass
CN1623374A (en) * 2004-12-14 2005-06-08 南京大学 Eel grass root stem sterile culturing and engineering seedling fast reproducing method

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