JP2021126092A - Plant cure system - Google Patents

Plant cure system Download PDF

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JP2021126092A
JP2021126092A JP2020024129A JP2020024129A JP2021126092A JP 2021126092 A JP2021126092 A JP 2021126092A JP 2020024129 A JP2020024129 A JP 2020024129A JP 2020024129 A JP2020024129 A JP 2020024129A JP 2021126092 A JP2021126092 A JP 2021126092A
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culture solution
plant
unit
curing
plant curing
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JP2021126092A5 (en
JP7270980B2 (en
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冬彦 中嶋
Fuyuhiko Nakajima
冬彦 中嶋
良和 星
Yoshikazu Hoshi
良和 星
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Yamato Denki Shisan Kanri Co Ltd
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Abstract

To provide a novel plant cure system capable of further facilitating aseptic cure of plants.SOLUTION: There is provided a plant cure system comprising: a plant body cure part in which a plant body is stored and cured; a culture fluid supply channel which is communicated with inside of the plant body cure part, and circulates culture fluid in an aseptic state; and a pressure reduction part for reducing a pressure in the plant body cure part. By reducing the pressure in the plant body cure part by the pressure reduction part, the culture fluid in the aseptic state can be circulated into the plant body cure part from the culture fluid supply channel.SELECTED DRAWING: Figure 1

Description

本発明は、無菌状態での植物養生システムに関する。 The present invention relates to an aseptic plant curing system.

植物の大量生産を可能とする方法の一つとして、ガラス容器内で植物を無菌培養して生産する方法が知られている。このような方法として例えば、コチョウランなどに応用されているメリクロン培養が挙げられる。 As one of the methods capable of mass production of plants, a method of aseptically culturing and producing plants in a glass container is known. Examples of such a method include melikron culture applied to moth orchid and the like.

また、特許文献1〜3においては、植物体を培地が入れられている袋体内に収容し、該袋体内にガスを供給して無菌培養する培養方法が提案されている。 Further, Patent Documents 1 to 3 propose a culture method in which a plant is housed in a bag containing a medium, gas is supplied into the bag, and aseptic culture is performed.

特開2017−118847号公報Japanese Unexamined Patent Publication No. 2017-118847 特開平7−135869号公報Japanese Unexamined Patent Publication No. 7-135869 特開平11−75593号公報Japanese Unexamined Patent Publication No. 11-75593

本発明は、より容易に無菌養生を行うことができる新規な植物養生システムを提供する。 The present invention provides a novel plant curing system that enables aseptic curing more easily.

上述のとおり植物体の無菌培養が提案されており、この無菌培養において取扱いなどを容易としてスケールアップをしやすくする手法としては、例えば特許文献1〜3に記載の袋体を用いての無菌培養が考えられる。しかしながら、特許文献1〜3に記載の方法において予め設けられた配管を介して容器内に新たに供給されるのはガスのみであり、培養液については減少するたびに袋体を開封して再度供給しなければならない。そのため、特許文献1〜3に記載の方法による場合にも手間がかかる。 As described above, aseptic culture of plants has been proposed, and as a method for facilitating handling and scale-up in this aseptic culture, for example, aseptic culture using the bags described in Patent Documents 1 to 3 Can be considered. However, in the methods described in Patent Documents 1 to 3, only gas is newly supplied into the container through the piping provided in advance, and the culture solution is opened again every time the amount is reduced. Must be supplied. Therefore, it takes time and effort even when the method described in Patent Documents 1 to 3 is used.

本発明は鋭意研究の結果、ガラス容器や袋体などの植物体養生部内に繋がる培養液供給流路内を減圧し、それにより該流路内に無菌状態の培養液を流通させて植物体養生部内に培養液を供給するように構成することで、より手間を省略できる植物養生システムを構築できることを見出し、本発明を完成させた。 As a result of diligent research, the present invention decompresses the inside of the culture solution supply flow path connected to the inside of the plant body curing part such as a glass container or a bag body, whereby the sterile culture solution is circulated in the flow path to cure the plant body. We have found that it is possible to construct a plant curing system that can save time and effort by supplying the culture solution into the part, and completed the present invention.

本発明の要旨は以下の通りである。
[1] その内部に植物体が収容されて養生される植物体養生部と、
前記植物体養生部の内部と連通するとともに、無菌状態の培養液を流通させる培養液供給流路と、
前記培養液供給流路を減圧させる減圧部と、を備え、
前記培養液供給流路の内部を前記減圧部によって減圧することにより無菌状態の培養液を前記培養液供給流路を介して前記植物体養生部内に流通させる、植物養生システム。
[2] 前記培養液供給流路は、前記植物体養生部と連通する第一の開口と前記減圧部と連通する第2の開口との間から前記第一の開口上に突出する凸部を有する、[1]に記載の植物養生システム。
[3] 前記培養液供給流路において前記凸部が前記第一の開口に隣接する位置に配置されている、[2]に記載の植物養生システム。
[4] 前記培養液供給流路は、連通する前記植物体養生部へと無菌状態の培養液を流入させるガイド部材を有する[3]に記載の植物養生システム。
[5] 培養液に対してろ過処理を行うことにより無菌状態の培養液を生成するろ過処理部をさらに備える[1]から[4]のいずれか一つに記載の植物養生システム。
[6] 前記植物体養生部の内部への空気の流通を許容する空気供給部をさらに備える請求項1から5のいずれか一つに記載の植物養生システム。
[7] 前記植物体養生部が袋体である、[1]から[6]のいずれか一つに記載の植物養生システム。
The gist of the present invention is as follows.
[1] The plant body curing part where the plant body is housed and cured inside it,
A culture solution supply channel that communicates with the inside of the plant curing part and distributes an aseptic culture solution,
A decompression unit for depressurizing the culture solution supply flow path is provided.
A plant curing system in which a sterile culture solution is circulated into the plant curing section via the culture solution supply channel by decompressing the inside of the culture solution supply channel by the decompression section.
[2] The culture solution supply flow path has a convex portion protruding above the first opening from between the first opening communicating with the plant curing portion and the second opening communicating with the decompression portion. The plant curing system according to [1].
[3] The plant curing system according to [2], wherein the convex portion is arranged at a position adjacent to the first opening in the culture solution supply flow path.
[4] The plant curing system according to [3], wherein the culture solution supply channel has a guide member for allowing a sterile culture solution to flow into the communicating plant curing section.
[5] The plant curing system according to any one of [1] to [4], further comprising a filtration processing unit that produces a sterile culture solution by filtering the culture solution.
[6] The plant curing system according to any one of claims 1 to 5, further comprising an air supply unit that allows air to flow into the plant body curing unit.
[7] The plant curing system according to any one of [1] to [6], wherein the plant curing part is a bag.

本発明によれば、より容易に無菌養生を行うことができる新規な植物養生システムを提供することができる。 According to the present invention, it is possible to provide a novel plant curing system capable of performing aseptic curing more easily.

本実施形態の植物養生システムの概要を示す図である。It is a figure which shows the outline of the plant curing system of this embodiment. 図1中の破線部200を拡大した図である。It is an enlarged view of the broken line part 200 in FIG.

本実施形態の植物養生システムは、その内部に植物体が収容されて養生される植物体養生部と、植物体養生部の内部と連通するとともに、無菌状態の培養液を流通させる培養液供給流路と、培養液供給流路を減圧させる減圧部と、を備える。培養液供給流路の内部を減圧部によって減圧することにより無菌状態の培養液を培養液供給流路から植物体養生部内に流通させる。 The plant curing system of the present embodiment communicates with the plant curing section in which the plant is housed and cured, and the inside of the plant curing section, and distributes the culture solution in a sterile state. It is provided with a passage and a decompression section for depressurizing the culture solution supply flow path. By decompressing the inside of the culture solution supply channel with the decompression section, the sterile culture solution is circulated from the culture solution supply channel into the plant curing section.

本明細書において、植物体とは、植物の一部または全部をいう。植物体として、例えば、植物体の幼苗を含む、個体としての器官またはその前駆体を備えた実生や幼苗などの完全ないしおおよそ完全な植物体や、植物細胞、カルス、芽、多芽体、苗条原基、種子、胞子、原糸体、幼苗、花蕾、葉、茎、枝、根、茎頂、側芽、花芽、花粉、花糸、葯、子房、胚乳、胚乳及び胚などの個体の一部を挙げることができる。 As used herein, the term "plant body" refers to a part or all of a plant. As a plant, for example, a complete or almost complete plant such as a seedling or a seedling having an organ as an individual or a precursor thereof, including a seedling of the plant, a plant cell, a callus, a bud, a multi-bud, a seedling. One of individuals such as primordia, seeds, spores, filaments, seedlings, flower buds, leaves, stems, branches, roots, shoot apex, lateral buds, flower buds, pollen, filaments, anthers, ovaries, embryo milk, embryo milk and embryos. I can list the department.

本明細書において、養生とは、植物体を人工的な環境下で生育または増殖させることを意味し、具体的には人工的な環境下で細胞の増殖、茎葉の増殖または伸長、芽の誘導または伸長などが確認できることを挙げることができる。養生を行うにあたり植物体の炭素源は後述の培養液由来のショ糖、または植物体培養部内の空気由来の二酸化炭素などとすることができ、特に限定されない。また、無菌養生とは、上記養生を菌類あるいは細菌類といった微生物等が実質的に存在しない環境下において行うことをいい、例えば、滅菌処理された容器または構造物内において無菌状態の培養液などを用いて植物体を養生することを挙げることができる。また、無菌状態の培養液とは、フィルタ処理、ガンマ線照射やUV処理、薬品による殺菌消毒などの処理が例えば行われた結果、上記微生物等を実質的に含まない状態にある培養液をいう(以下、単に無菌培養液ともいう)。 As used herein, curing means growing or proliferating a plant in an artificial environment, specifically, cell proliferation, foliage proliferation or elongation, and bud induction in an artificial environment. Alternatively, it can be mentioned that elongation and the like can be confirmed. For curing, the carbon source of the plant can be sucrose derived from the culture solution described later, carbon dioxide derived from the air in the culture part of the plant, or the like, and is not particularly limited. Further, aseptic curing means that the above-mentioned curing is performed in an environment in which microorganisms such as fungi or bacteria are substantially not present. For example, an aseptic culture solution in a sterilized container or structure is used. It can be mentioned that it is used to cure a plant. Further, the aseptic culture solution refers to a culture solution in a state in which the above-mentioned microorganisms and the like are substantially not contained as a result of, for example, treatments such as filter treatment, gamma ray irradiation, UV treatment, and sterilization and disinfection with chemicals. Hereinafter, it is also simply referred to as sterile culture solution).

以下、本実施形態の植物養生システムの構成について、図面を用いて詳細に説明する。
図1は本実施形態の植物養生システム100の概要を示す図である。また、図2は図1中の破線部200を拡大した図である。
本実施形態の植物養生システム100は、植物体養生部101と、培養液供給部103と、無菌ろ過処理部105と、培養液供給流路107と、減圧部109と、空気供給部121とを備える。図1、2において、破線の矢印は、培養液の流れを示している。
Hereinafter, the configuration of the plant curing system of the present embodiment will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing an outline of the plant curing system 100 of the present embodiment. Further, FIG. 2 is an enlarged view of the broken line portion 200 in FIG.
The plant curing system 100 of the present embodiment includes a plant curing unit 101, a culture solution supply unit 103, a sterile filtration treatment unit 105, a culture solution supply flow path 107, a decompression unit 109, and an air supply unit 121. Be prepared. In FIGS. 1 and 2, the dashed arrow indicates the flow of the culture solution.

植物体養生部101は、その内部に植物体が収容されて養生される。植物体養生部101は、その内部に植物体を収容できるとともに無菌養生が可能である限り、特に限定されない。例えば植物体養生部101は、密閉された容器や、無菌状態にある構造物によって構成することができる。
このような容器や構造物としては、例えばガラス容器や、オートクレーブ処理などの滅菌処理を行うことが可能な素材で形成されている袋体などを挙げることができる。
また、本実施形態に係る植物体養生部101は、植物の種類などにもよるが、例えば植物体の培養に必要な光の波長域に対して透過性を有するものとすることが好ましい。
The plant body curing unit 101 is housed and cured with the plant body inside. The plant curing unit 101 is not particularly limited as long as the plant can be accommodated therein and aseptic curing is possible. For example, the plant curing unit 101 can be composed of a closed container or a structure in a sterile state.
Examples of such a container or structure include a glass container and a bag body made of a material capable of performing a sterilization treatment such as an autoclave treatment.
Further, the plant curing unit 101 according to the present embodiment preferably has transparency in the wavelength range of light required for culturing the plant, although it depends on the type of the plant and the like.

培養液供給部103は、植物体の養分を含む液体である培養液を貯留し、連通する無菌化ろ過処理部105に、植物体の養分を含む液体である培養液を供給する。
本実施形態に係る培養液は、特に限定されないが、例えば、炭素源を含む培養液とすることができる。炭素源とは、植物が培養液から吸収し資化できる炭素源(二酸化炭素を除く)を意味する。炭素源として、具体的には、スクロース、グルコース、フルクトースなどの糖や低分子化したでんぷんやセルロースおよび核酸物質、脂質、蛋白質等の炭水化物を挙げることができる。
The culture solution supply unit 103 stores the culture solution which is a liquid containing the nutrients of the plant body, and supplies the culture solution which is a liquid containing the nutrients of the plant body to the aseptic filtration processing unit 105 which communicates.
The culture solution according to the present embodiment is not particularly limited, but may be, for example, a culture solution containing a carbon source. The carbon source means a carbon source (excluding carbon dioxide) that can be absorbed and assimilated by a plant from a culture solution. Specific examples of the carbon source include sugars such as sucrose, glucose and fructose, low molecular weight starch and cellulose, and carbohydrates such as nucleic acid substances, lipids and proteins.

また、本実施形態においては炭素源を含まない培養液を用いることもできる。炭素源を含まない培養液としては、上記炭素源を実質的に含まない一方で窒素、リン酸、カリウム、マグネシウム、カルシウムなどの多量元素や、鉄、ホウ素、亜鉛、マンガン、ヨウ素、モリブデン、銅、コバルトなどの微量元素等の無機成分を含む培養液を用いることができる。さらに、当該培養液は、グリシン、ニコチン酸、ピリドキシン塩酸、チアミン塩酸、イノシトールなどのビタミン類やアミノ酸等の有機成分や、植物成長調節物質を含んでいてもよい。 Moreover, in this embodiment, a culture solution containing no carbon source can also be used. As a culture solution containing no carbon source, while substantially not containing the above carbon source, trace elements such as nitrogen, phosphoric acid, potassium, magnesium and calcium, iron, boron, zinc, manganese, iodine, molybdenum and copper , A culture solution containing an inorganic component such as a trace element such as cobalt can be used. Further, the culture solution may contain organic components such as vitamins and amino acids such as glycine, nicotinic acid, pyridoxine hydrochloric acid, thiamine hydrochloric acid and inositol, and plant growth regulators.

具体的な培養液の例としては、例えば、MS培地(Murashige and Skoog、1962、Physiol.Plant, 15 : 473-487)、LS培地(Linsmaier and Skoog、1965)、B5培地(Gamborg et al.、1968)、R2培地(Ohira et al.、1973)、N6培地(Chu et al.、1975)、Woody Plant培地(Lloyd and McCown、1981)、Vacin & Went培地(Vacin and Went、1949)などを基に構成された培養液を挙げることができ、これらを基に炭素源を含まないように構成された培養液が好ましい。
培養液における各成分の濃度などは培養される植物の種類などに応じて適宜変更可能であり、特に限定されない。
Specific examples of the culture medium include MS medium (Murashige and Skoog, 1962, Physiol.Plant, 15: 473-487), LS medium (Linsmaier and Skoog, 1965), B5 medium (Gamborg et al.,). 1968), R2 medium (Ohira et al., 1973), N6 medium (Chu et al., 1975), Woody Plant medium (Lloyd and McCown, 1981), Vacin & Went medium (Vacin and Went, 1949), etc. Examples of the culture medium constructed in the above can be mentioned, and a culture medium constructed based on these so as not to contain a carbon source is preferable.
The concentration of each component in the culture solution can be appropriately changed according to the type of plant to be cultured, and is not particularly limited.

無菌ろ過処理部105は、培養液供給部103から供給される培養液に対してろ過処理を行うことにより微生物等を培養液から除去して無菌培養液を生成する。
無菌ろ過処理部105は、特に限定されないが、例えば、微生物等を除去可能なメンブレンフィルターなどの除菌用フィルタを用いて構成することができる。当該除菌用フィルタとして、具体的にはミリポア(登録商標)フィルターやマイレクス(登録商標)フィルターなど市販の除菌用フィルタを挙げることができ、特に限定されない。
得られた無菌培養液は、連通する培養液供給流路107に供給される。
The aseptic filtration treatment unit 105 removes microorganisms and the like from the culture solution by performing a filtration treatment on the culture solution supplied from the culture solution supply unit 103 to generate an aseptic culture solution.
The aseptic filtration treatment unit 105 is not particularly limited, but can be configured by using, for example, a sterilization filter such as a membrane filter capable of removing microorganisms and the like. Specific examples of the sterilization filter include commercially available sterilization filters such as Millipore (registered trademark) filter and Milex (registered trademark) filter, and the present invention is not particularly limited.
The obtained sterile culture solution is supplied to the culture solution supply flow path 107 that communicates with the culture solution.

培養液供給流路107は、一方の端部において無菌ろ過処理部105と連通しており、無菌ろ過処理部105から供給された無菌培養液をその内部で流通させる。また、培養液供給流路107は、開口111を備えており、該開口111を介して植物体養生部101と連通している。培養液供給流路107内を流通する無菌培養液は、該開口111から植物体養生部101内に流入する。
また、培養液供給流路107の他方の端部においては、開口115を介して減圧部109と繋がっている。
さらに、培養液供給流路107は、開口111と開口115の間の開口111と隣接する位置から開口111上に突出する凸部113を有する。
培養液供給流路107は、例えば、オートクレーブ処理などの滅菌処理への適用性、耐液体性、耐圧性などを考慮して流路を形成可能な素材を用いて構成することができ、特に限定されない。具体的には、プラスチック、鉄、アルミ、合金、セラミック、ガラス、石、難溶解性のパルプ、またはゴムなどで形成されているチューブを用いて培養液供給流路107を構成することができる。また、培養液供給流路107の大きさや開口111の大きさなども植物体養生部101の大きさなどに応じて適宜設定でき、特に限定されない。
例えば、培養液供給流路107の内径:0.1mm〜10cm(好ましくは1〜30mm)、開口111の大きさ:0.01〜500m2(好ましくは1〜100 m2)とすることができる。
凸部113も、後述のとおり開口111を介して無菌培養液を植物体養生部111内に流入させることができる限りその大きさや形状は特に限定されない。例えば、開口111と重なる面が半円形や四角形である半円柱状や四角柱状とすることができる。また、大きさについても、凸部113が有する開口111と重なる面について、大きさを0.01〜500m2(好ましくは1〜100 m2)とすることを例示できる。
さらに、開口111の数も特に限定されず、本実施形態では一つ設けているが、複数(例えば2〜10個)設けられていてもよく、1〜5個が好ましい。
The culture solution supply flow path 107 communicates with the aseptic filtration processing unit 105 at one end, and the aseptic culture solution supplied from the aseptic filtration processing unit 105 is circulated inside the aseptic filtration processing unit 105. Further, the culture solution supply flow path 107 is provided with an opening 111, and communicates with the plant curing unit 101 through the opening 111. The sterile culture solution flowing in the culture solution supply flow path 107 flows into the plant curing unit 101 through the opening 111.
Further, at the other end of the culture solution supply flow path 107, it is connected to the decompression unit 109 via the opening 115.
Further, the culture solution supply flow path 107 has a convex portion 113 protruding above the opening 111 from a position adjacent to the opening 111 between the opening 111 and the opening 115.
The culture solution supply flow path 107 can be configured by using a material capable of forming a flow path in consideration of, for example, applicability to sterilization treatment such as autoclave treatment, liquid resistance, pressure resistance, etc., and is particularly limited. Not done. Specifically, the culture solution supply flow path 107 can be configured by using a tube made of plastic, iron, aluminum, alloy, ceramic, glass, stone, poorly soluble pulp, rubber, or the like. Further, the size of the culture solution supply flow path 107, the size of the opening 111, and the like can be appropriately set according to the size of the plant curing portion 101 and the like, and are not particularly limited.
For example, the inner diameter of the culture solution supply passage 107: 0.1mm~10cm (preferably 1 to 30 mm), the size of the aperture 111: 0.01~500m 2 (preferably 1 to 100 m 2) can be.
The size and shape of the convex portion 113 are not particularly limited as long as the sterile culture solution can flow into the plant curing portion 111 through the opening 111 as described later. For example, the surface overlapping the opening 111 may be a semicircular or quadrangular columnar or quadrangular columnar. As for the size, the surface overlapped with the opening 111 of the convex portion 113 has a size 0.01~500m 2 (preferably 1 to 100 m 2) can be exemplified be.
Further, the number of openings 111 is not particularly limited, and although one is provided in this embodiment, a plurality of openings (for example, 2 to 10) may be provided, preferably 1 to 5.

減圧部109は、例えば真空ポンプで構成することができ、培養液供給流路107の内部を減圧させる。減圧部109が作動するとき、減圧部109は培養液供給流路107内の空気を吸引し、これにより培養液が培養液供給流路107内に流入してその内部を移動する。
開口111に到達した際、開口111から培養液が植物体養生部101内に流入する。また、凸部113の作用によって無菌培養液の通路移動が物理的に抑制されるので、より効率的に無菌培養液が植物体養生部101内に供給される。なお、減圧部109を作動させたときの減圧の程度については特に限定されず、例えば培養液供給流路107や植物体養生部101を構成する素材などに応じて適宜設定すればよい。例えば、絶対圧で100,000〜0.1Pa(好ましくは10〜10000pa)とすることを例示できる。
なお、本実施形態においては、液滴などからの減圧部109(真空ポンプ)保護の観点から、フィルタ131とトラップ133を培養液供給流路107と植物体養生部101との間に配置している。一方で、これらフィルタ131やトラップ133を設けなくともよく、特に限定されない。
The decompression unit 109 can be configured by, for example, a vacuum pump, and decompresses the inside of the culture solution supply flow path 107. When the decompression unit 109 operates, the decompression unit 109 sucks the air in the culture solution supply flow path 107, whereby the culture solution flows into the culture solution supply flow path 107 and moves inside the culture solution supply flow path 107.
When the opening 111 is reached, the culture solution flows into the plant curing unit 101 from the opening 111. Further, since the passage movement of the sterile culture solution is physically suppressed by the action of the convex portion 113, the sterile culture solution is more efficiently supplied into the plant curing portion 101. The degree of decompression when the decompression unit 109 is operated is not particularly limited, and may be appropriately set according to, for example, the culture solution supply flow path 107, the material constituting the plant curing unit 101, and the like. For example, the absolute pressure may be 100,000 to 0.1 Pa (preferably 10 to 10,000 Pa).
In this embodiment, from the viewpoint of protecting the decompression unit 109 (vacuum pump) from droplets and the like, the filter 131 and the trap 133 are arranged between the culture solution supply flow path 107 and the plant curing unit 101. There is. On the other hand, it is not necessary to provide these filters 131 and trap 133, and the present invention is not particularly limited.

また、本実施形態の植物養生システム100においては、特に限定されないが、植物体養生部101に、空気供給部121を有するようにすることができる。当該空気供給部121から必要に応じて植物体養生部101内に除菌処理されるなどして無菌状態の空気を導入することで、植物体養生部101を例えば袋体で構成したときなどに形状維持などをより容易とすることができる。なお、特に限定されないが、空気供給部121は、例えば、無菌ろ過処理部105と同様の除菌用フィルタと植物体養生部101に設けた開口とにより構成することができる。 Further, in the plant curing system 100 of the present embodiment, the plant curing unit 101 may have an air supply unit 121, although it is not particularly limited. When aseptic air is introduced from the air supply unit 121 into the plant curing unit 101 as needed, for example, when the plant curing unit 101 is composed of a bag. It is possible to make it easier to maintain the shape. Although not particularly limited, the air supply unit 121 can be configured by, for example, a sterilization filter similar to the aseptic filtration processing unit 105 and an opening provided in the plant curing unit 101.

続いて、本実施形態の植物養生システム100における、植物体養生部101内に無菌培養液を供給するときのフローの一例を説明する。 Subsequently, an example of the flow when the sterile culture solution is supplied into the plant curing unit 101 in the plant curing system 100 of the present embodiment will be described.

まず、減圧部109を作動させ、培養液供給流路107内を減圧させる。 First, the decompression unit 109 is operated to depressurize the inside of the culture solution supply flow path 107.

次に、培養液供給流路107が減圧されたことにより、培養液供給部103から培養液供給流路107に供給される。このとき、培養液は無菌ろ過処理部105を通過するため、微生物等が除去され、培養液供給流路107には無菌培養液が供給される。
培養液供給流路107に供給された無菌培養液は、開口111から植物体養生部101内に流入する。このとき上述の凸部113の作用により、無菌培養液はより効率的に植物体養生部101内に流入する。よって、凸部113は、連通する植物体養生部101へと無菌状態の培養液を導入させるガイド部材、ということもできる。
Next, since the culture solution supply flow path 107 is depressurized, it is supplied from the culture solution supply unit 103 to the culture solution supply flow path 107. At this time, since the culture solution passes through the aseptic filtration treatment unit 105, microorganisms and the like are removed, and the aseptic culture solution is supplied to the culture solution supply flow path 107.
The sterile culture solution supplied to the culture solution supply flow path 107 flows into the plant curing unit 101 through the opening 111. At this time, due to the action of the convex portion 113 described above, the aseptic culture solution flows into the plant curing portion 101 more efficiently. Therefore, the convex portion 113 can be said to be a guide member for introducing the aseptic culture solution into the communicating plant curing portion 101.

培養液供給流路107に培養液を供給してから所定時間経過後、例えば培養される植物体に適した量の培養液が植物体養生部101に流入した時点で、減圧部109の作動を終了させ、培養液の植物体養生部101への流入を停止させる。
なお、減圧部109の作動中または作動終了後に必要に応じ、空気供給部121から植物体養生部101内に無菌状態にある空気を導入してもよい。
After a lapse of a predetermined time after supplying the culture solution to the culture solution supply flow path 107, for example, when an amount of the culture solution suitable for the plant to be cultured flows into the plant curing unit 101, the decompression unit 109 is operated. The process is terminated, and the inflow of the culture solution into the plant curing unit 101 is stopped.
If necessary, air in a sterile state may be introduced into the plant curing unit 101 from the air supply unit 121 during or after the operation of the decompression unit 109.

培養液の量などは、培養される植物体の種類や生育段階などに応じて適宜変更でき、特に限定されない。
また、培養液を導入するにあたっては、減圧部109により植物体養生部101を減圧するとともに無菌ろ過処理部105に供される培養液に対して加圧するようにしてもよい。培養液を加圧するときの圧力は特に限定されず、当業者が適宜設定することができる。
The amount of the culture solution and the like can be appropriately changed according to the type of the plant to be cultured, the growth stage, and the like, and is not particularly limited.
Further, when introducing the culture solution, the plant curing unit 101 may be depressurized by the decompression unit 109 and the culture solution provided to the aseptic filtration treatment unit 105 may be pressurized. The pressure at which the culture solution is pressurized is not particularly limited and can be appropriately set by those skilled in the art.

なお、本実施形態の植物養生システム100において光条件や植物体養生部101内における二酸化炭素濃度などの条件も特に限定されず、当業者が植物体の種類や生育段階などに応じて適宜設定できる。 In the plant curing system 100 of the present embodiment, conditions such as light conditions and carbon dioxide concentration in the plant curing unit 101 are not particularly limited, and those skilled in the art can appropriately set the conditions according to the type and growth stage of the plant. ..

以上、本実施形態によれば、植物体養生部101の開封などを行うことなく植物の養生を継続した状態で無菌培養液を植物体養生部101内に供給することができる。そのため、より容易に無菌養生を行うことができる。 As described above, according to the present embodiment, the sterile culture solution can be supplied into the plant curing unit 101 in a state where the plant curing is continued without opening the plant curing unit 101. Therefore, aseptic curing can be performed more easily.

なお、本発明の実施形態の一つについて説明したが、本発明は他の実施形態とすることもできる。
例えば、本実施形態では培養液を無菌ろ過処理部105に供しフィルタによる無菌処理を行って培養液供給流路107に供給しているが、他の態様とすることもできる。例えば、ガンマ線照射やUV処理、薬品による殺菌消毒などで無菌処理するようにしてもよく、2つ以上の無菌処理が行われるようにしてもよい。また、無菌ろ過処理部105を設けない態様としてもよい。すなわち、予め無菌処理された培養液を培養液供給流路107に供給する態様とすることもできる。
Although one of the embodiments of the present invention has been described, the present invention may be another embodiment.
For example, in the present embodiment, the culture solution is provided to the aseptic filtration processing unit 105, aseptically treated by a filter, and supplied to the culture solution supply flow path 107, but other embodiments may be used. For example, aseptic treatment may be performed by gamma ray irradiation, UV treatment, sterilization and disinfection with chemicals, or two or more aseptic treatments may be performed. Further, the aseptic filtration processing unit 105 may not be provided. That is, it is also possible to supply the culture solution that has been aseptically treated in advance to the culture solution supply flow path 107.

また、本実施形態では、減圧部109と連通する開口115を植物体養生部101と連通する開口111とは別に培養液供給流路107に設ける態様としているが他の態様とすることもできる。例えば減圧部109と植物体養生部101とを繋げる開口を植物体養生部101に設け、植物体養生部101を介して培養液供給流路107内を減圧するようにしてもよい。一方で植物培養部101を袋体などとした場合に減圧部109を作動させたときに植物培養部101の形状の維持がより容易であるため、減圧部109は本実施形態のように、植物培養部101を介することなく培養液供給流路107と繋がっていることが好ましい。 Further, in the present embodiment, the opening 115 communicating with the decompression section 109 is provided in the culture solution supply flow path 107 separately from the opening 111 communicating with the plant curing section 101, but other embodiments can also be used. For example, an opening connecting the decompression unit 109 and the plant curing unit 101 may be provided in the plant curing unit 101 to reduce the pressure in the culture solution supply flow path 107 via the plant curing unit 101. On the other hand, when the plant culture unit 101 is a bag or the like, it is easier to maintain the shape of the plant culture unit 101 when the decompression unit 109 is operated. Therefore, the decompression unit 109 is a plant as in the present embodiment. It is preferable that it is connected to the culture solution supply flow path 107 without passing through the culture unit 101.

また、本実施形態において凸部113は開口111と開口115の間の開口111と隣接する位置に設けられているが、これに限定されるものでなく、開口111と離れた位置に設けてられていてもよい。 Further, in the present embodiment, the convex portion 113 is provided at a position adjacent to the opening 111 between the opening 111 and the opening 115, but the present invention is not limited to this, and the convex portion 113 is provided at a position away from the opening 111. You may be.

また、一の植物体養生部101に対し、培養液供給流路107が複数設けられ、それぞれから無菌培養液が一の植物体養生部101内に供給されるようにしてもよい。
また、一の植物体養生部101に対し、空気供給部121も2以上(例えば1〜1000個、好ましくは1〜20個)設けられていてもよい。一方、空気供給部121は設けられなくともよい。
Further, a plurality of culture solution supply flow paths 107 may be provided for one plant curing section 101, and sterile culture solution may be supplied into the one plant curing section 101 from each.
Further, 2 or more (for example, 1 to 1000, preferably 1 to 20) air supply units 121 may be provided for one plant curing unit 101. On the other hand, the air supply unit 121 may not be provided.

以下の実施例により本発明をさらに具体的に説明するが、本発明はこれらに限定されない。
厚さ1mm、内径4mmのプラスチック製チューブ(培養液供給流路)、0.22μmの除菌用フィルタ(無菌ろ過処理部)、袋体(植物体養生部)を用いて図1と同等の装置を試作した。袋体内部には植物(オオミズゴケの新芽(枝部および葉部を含む植物体全体))を収容した。高温高圧滅菌をしていないショ糖3%を含むムラシゲスクーグ液体培地を除菌用フィルタに繋げた2000mlの耐圧プラスチック容器に入れ、上部から加圧した。加圧と同時に減圧を行い、除菌用フィルタを通じてプラスチック製チューブ内に無菌培養液を導入した。
The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.
Using a plastic tube with a thickness of 1 mm and an inner diameter of 4 mm (culture solution supply flow path), a 0.22 μm sterilization filter (sterile filtration treatment section), and a bag body (plant body curing section), a device equivalent to that in FIG. 1 was used. I made a prototype. The inside of the bag contained plants (sphagnum palustre sprouts (whole plant including branches and leaves)). Murashige and Skoog liquid medium containing 3% sucrose that had not been sterilized at high temperature and high pressure was placed in a 2000 ml pressure-resistant plastic container connected to a sterilization filter and pressurized from above. The pressure was reduced at the same time as the pressurization, and the sterile culture solution was introduced into a plastic tube through a sterilization filter.

プラスチック製チューブの袋内内部に収容されている部分には袋体内部と連通する長さ3mm、幅1.5mmの開口を設けた。また、開口と隣接する位置には、開口に重なる面が長さ3mm、幅1.5mmの四角形であり、厚さ1mmである直方体状の凸部を設けた。 An opening having a length of 3 mm and a width of 1.5 mm was provided in the portion of the plastic tube housed inside the bag to communicate with the inside of the bag. Further, at a position adjacent to the opening, a rectangular parallelepiped convex portion having a surface overlapping the opening having a length of 3 mm and a width of 1.5 mm and a thickness of 1 mm was provided.

導入した無菌培養液は全て袋体内部に移動した。袋体に入った培養液は、温度25℃、光50ppfdの条件で、3カ月以上たっても菌あるいは細菌の増殖は認められなかった。その一方で袋体内部の植物は成長・増殖を続けた。 All the introduced sterile culture solution moved to the inside of the bag. In the culture solution contained in the bag, no bacterial or bacterial growth was observed even after 3 months or more under the conditions of a temperature of 25 ° C. and light of 50 ppfd. On the other hand, the plants inside the bag continued to grow and proliferate.

100:植物養生システム、101:植物体養生部、105:無菌ろ過処理部、107:培養液供給流路、109:減圧部、111:植物体養生部と連通する開口、113:凸部、115:減圧部と連通する開口、121:空気供給部 100: Plant curing system, 101: Plant curing part, 105: Aseptic filtration processing part, 107: Culture solution supply flow path, 109: Decompression part, 111: Opening communicating with plant curing part, 113: Convex part, 115 : Opening that communicates with the decompression unit, 121: Air supply unit

Claims (7)

その内部に植物体が収容されて養生される植物体養生部と、
前記植物体養生部の内部と連通するとともに、無菌状態の培養液を流通させる培養液供給流路と、
前記培養液供給流路を減圧させる減圧部と、を備え、
前記培養液供給流路の内部を前記減圧部によって減圧することにより無菌状態の培養液を前記培養液供給流路を介して前記植物体養生部内に流通させる、植物養生システム。
The plant body curing part where the plant body is housed and cured inside it,
A culture solution supply channel that communicates with the inside of the plant curing part and distributes an aseptic culture solution,
A decompression unit for depressurizing the culture solution supply flow path is provided.
A plant curing system in which a sterile culture solution is circulated into the plant curing section via the culture solution supply channel by decompressing the inside of the culture solution supply channel by the decompression section.
前記培養液供給流路は、前記植物体養生部と連通する第一の開口と前記減圧部と連通する第2の開口との間から前記第一の開口上に突出する凸部を有する、請求項1に記載の植物養生システム。 The culture solution supply channel has a convex portion that protrudes above the first opening from between a first opening that communicates with the plant curing portion and a second opening that communicates with the decompression portion. Item 1. The plant curing system according to Item 1. 前記培養液供給流路において前記凸部が前記第一の開口に隣接する位置に配置されている、請求項2に記載の植物養生システム。 The plant curing system according to claim 2, wherein the convex portion is arranged at a position adjacent to the first opening in the culture solution supply flow path. 前記培養液供給流路は、連通する前記植物体養生部へと無菌状態の培養液を導入させるガイド部材を有する請求項1に記載の植物養生システム。 The plant curing system according to claim 1, wherein the culture solution supply channel has a guide member for introducing a sterile culture solution into the plant curing section that communicates with the plant curing unit. 培養液に対してろ過処理を行うことにより無菌状態の培養液を生成するろ過処理部をさらに備える請求項1から4のいずれか一つに記載の植物養生システム。 The plant curing system according to any one of claims 1 to 4, further comprising a filtration processing unit that produces a sterile culture solution by filtering the culture solution. 前記植物体養生部の内部への空気の流通を許容する空気供給部をさらに備える請求項1から5のいずれか一つに記載の植物養生システム。 The plant curing system according to any one of claims 1 to 5, further comprising an air supply unit that allows air to flow into the plant body curing unit. 前記植物体養生部が袋体である、請求項1から6のいずれか一つに記載の植物養生システム。



The plant curing system according to any one of claims 1 to 6, wherein the plant curing unit is a bag.



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