CN207408306U - A kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence - Google Patents

A kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence Download PDF

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Publication number
CN207408306U
CN207408306U CN201721348899.1U CN201721348899U CN207408306U CN 207408306 U CN207408306 U CN 207408306U CN 201721348899 U CN201721348899 U CN 201721348899U CN 207408306 U CN207408306 U CN 207408306U
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CN
China
Prior art keywords
leaf
section
leaf chamber
blade
chlorophyll fluorescence
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Expired - Fee Related
Application number
CN201721348899.1U
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Chinese (zh)
Inventor
付增娟
樊大勇
张淑敏
闫志丹
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Institute of Botany of CAS
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Institute of Botany of CAS
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Priority to CN201721348899.1U priority Critical patent/CN207408306U/en
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  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

The utility model is related to a kind of for measuring the leaf chamber of leaf cross-section chlorophyll fluorescence, which is characterized in that the leaf chamber includes leaf chamber body and blade presss from both sides;The leaf chamber body is the body structure being detachably connected by pedestal and upper cover, and the pedestal uses light transmissive material;The base top interval setting is useful for plugging two light transmission baffles of the fixed blade folder, and the base bottom is provided with photomask, offers to be convenient for the light hole for observing blade on the photomask;Through hole and check valve are provided on the upper lid, the through hole is used to plug the humidity sensor of fixed gas generating means, the check valve is used to connect the gas outlet of the gas generating unit, the upper cover lower part is additionally provided with to connect the light source opening of light supply apparatus, and the utility model can be widely applied in technical field of optical instrument.

Description

A kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence
Technical field
The utility model is to belong to optical instrument skill on a kind of for measuring the leaf chamber of leaf cross-section chlorophyll fluorescence Art field.
Background technology
Photosynthesis is one of some biology key that they depend on for existence biological processes on the earth, and Photosynthetic is by titanium dioxide Carbon and water are converted into organic matter, release oxygen, while the luminous energy absorbed is changed into available chemical energy, and chlorophyll is glimmering The probe that light is studied as photosynthesis, reflects the Photochemical Efficiency of Photosynthetic and the variation of heat dissipation ability, in blade Difference mesophyll tissue of portion is different with light intensity absorption ability to different light medium.The chlorophyll fluorescence instrument of commercialization at present exists certain Limitation (is only capable of measuring blade surface or the chlorophyll fluorescence of blade interior certain point), it is impossible to obtain the real light of mesophyll tissue Conjunction ability, and the general small volume of fluorescence leaf chamber provisioned in the chlorophyll fluorescence instrument of commercialization are only capable of horizontal clamping blade, thoroughly Unthreaded hole is in blade surface, it is impossible to the chlorophyll fluorescence that leaf cross-section is measured on microscope.
Using the chlorophyll fluorescence of high resolution microscope observation leaf cross-section, it can go deep into and systematically study blade The difference of internal photosynthetic capacity, and currently used for measuring the easy device of leaf cross-section, it is general to be pressed from both sides using 2 glass slides Cross section is observed towards microlens or uses U-shaped windowpane container, then clamped blade with 2 sheet glass gaskets and put by firmly blade Enter in container and observe, however, such easy device is not avoided that the fluorescence pollution of blade surface, moisture can not be kept, caused Make leaf cross-section fluoremetry inaccurate.
The content of the invention
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of fluoremetry accurately for measure blade transversal The leaf chamber of face chlorophyll fluorescence.
To achieve the above object, the utility model takes following technical scheme:One kind is green for measuring leaf cross-section leaf The leaf chamber of plain fluorescence, which is characterized in that the leaf chamber includes leaf chamber body and blade presss from both sides;The leaf chamber body is by pedestal and upper cover The body structure being detachably connected, the pedestal use light transmissive material;The base top interval setting is useful for plugging Two light transmission baffles of the fixed blade folder, the base bottom are provided with photomask, are offered on the photomask for just In the light hole of observation blade;Through hole and check valve are provided on the upper lid, the through hole is used to plug fixed gas The humidity sensor of device, the check valve are used to connect the gas outlet of the gas generating unit, and the upper cover lower part is also set It is equipped with to connect the light source opening of light supply apparatus.
Preferably, the blade folder includes spring clip and gasket, and the spring clip includes two fold-line-shaped side plates, two foldings The top plate opposite side of linear side plate is fixedly connected with spring, and each fold-line-shaped side plate interior sides are fixedly installed one for sandwiched leaf The gasket of piece.
Preferably, the two fold-line-shaped side plates are using light transmissive material, and two gaskets are using lighttight black sea Continuous material.
Preferably, the bottom of two gaskets and the bottom of the two fold-line-shaped side plates are described in same horizontal line or two The bottom of gasket is higher than 1~2mm of bottom of the two fold-line-shaped side plates.
A fan is fixedly installed in the leaf chamber bodies top for being preferably located at the blade folder top.
Preferably, it is provided with sealing ring between the pedestal and upper cover.
Preferably, the light source opening uses slit shape structure.
Preferably, the pedestal is more than 95% silica glass material using light transmittance.
Preferably, the distance between two described baffles are not less than 30mm.
Preferably, the leaf chamber body uses the body structure of 10cm*10cm*6cm, and the height of the blade folder is not more than 50mm。
The utility model has the following advantages due to taking above technical scheme:1st, the blade folder of the utility model is It is made of the spring clip using light transmissive material and the gasket using light tight absorbent material, blade is mounted on two on the inside of spring clip Between gasket, installation is simple and fast, and after being passed through gas in leaf chamber body, bibulous gasket can ensure Blade measuring process In always in moisture state, prevent leaves water loss from chloroplaset being caused to inactivate, while ensure the upper and lower surface of blade only close to aobvious The part irradiation of objective avoids the fluorescence at other positions of blade from polluting, improves fluorimetric accuracy.2nd, this practicality is new Type can ensure that the incident light of micro objective only irradiates leaf cross-section, prevent due to being provided with photomask in base bottom The fluorescence pollution of blade upper and lower surface.3rd, it can need to set according to experiment in the leaf chamber body of the utility model and plug fixed gas The humidity sensor of body generating means, upper cover can connect external light source device by light source interface and be passed through external light source, and lead to The gas outlet for crossing check valve connection gas generating unit is passed through gas needed for experiment, and the leaf chamber body of box sealing can be according to aobvious Micro mirror objective table carries out respective design, has very high flexibility.4th, fan is additionally provided in the leaf chamber body of the utility model, Gas needed for experiment can be made equably to be full of in leaf chamber body, and then the cross section of blade is enable fully to carry out photosynthetic work With the raising fluorimetric accuracy of leaf cross-section can be widely applied in photosynthetic instrument field.
Description of the drawings
Fig. 1 is the structure diagram of the utility model leaf chamber;
Fig. 2 is the structure diagram of the utility model blade folder;
Fig. 3 is using the utility model and the knot using existing easy device measure leaf cross-section chlorophyll fluorescence yield Fruit comparison diagram, wherein, "-" represents the leaf cross-section chlorophyll fluorescence yield measured using the utility model, and "-" represents to use The leaf cross-section chlorophyll fluorescence yield that existing easy device measures.
Specific embodiment
Come to carry out the utility model detailed description below in conjunction with attached drawing.It should be appreciated, however, that attached drawing is provided only More fully understand the utility model, they should not be understood the limitation of paired the utility model.
As shown in Figure 1, provided by the utility model include leaf chamber for measuring the leaf chamber of leaf cross-section chlorophyll fluorescence Body 1, blade folder 2, baffle 3, photomask 4, fan 5 and check valve 6, wherein, leaf chamber body 1 includes pedestal 11 and upper cover 12, Pedestal 11 and baffle 3 use light transmissive material.
11 top of pedestal is detachably connected upper cover 12 by screw and forms leaf chamber body 1, and leaf chamber body 1 uses babinet knot Structure, 11 top of pedestal are also arranged at intervals two baffles 3 for being useful for plugging fixed blade folder 2, and 11 bottom of pedestal is provided with photomask 4, the light hole that microscope 7 is convenient for observe blade 8 is offered on photomask 4.Leaf chamber body 1 above blade folder 2 Fan 5 is fixedly installed in top, and 12 top of upper cover offers through hole 13, for plugging the humidity sensor of fixed gas generating means Device, 12 top of upper cover also plug fixed check valve 6, and for connecting the gas outlet of gas generating unit, 12 lower part both sides of upper cover are equal Light source opening 14 is offered, for connecting light supply apparatus, wherein, gas generating unit and light supply apparatus are the prior art, This is not repeated.
As shown in Fig. 2, blade folder 2 includes spring clip 21 and gasket 22, spring clip 21 includes two fold-line-shaped side plates 23 and one Spring 24, the top plate opposite side of each fold-line-shaped side plate 23 are fixedly connected with spring 24, and each 23 inside of fold-line-shaped side plate is fixed One gasket 22 for being used for sandwiched blade 8 is set, the bottoms of the bottom of two gaskets 22 and two fold-line-shaped side plates 23 in same horizontal line, Or two gasket 22 bottom be higher than two fold-line-shaped side plates 23 1~2mm of bottom.Each gasket 22 may be employed lighttight black Color sponge material, for keeping the moistening of blade 8 light tight, each fold-line-shaped side plate 23 uses light transmissive material.
In a preferred embodiment, sealing ring is additionally provided between pedestal 11 and upper cover 12, for ensureing leaf chamber sheet The air-tightness of body 1.
In a preferred embodiment, pedestal 11 is more than 95% silica glass material using light transmittance.
In a preferred embodiment, light source opening 14 uses slit shape structure.
In a preferred embodiment, the size of leaf chamber body 1 can be carried out according to 7 objective table upper space of microscope Setting, such as:Leaf chamber body 1 is using the body structure of 10cm*10cm*6cm, and the height of blade folder 2 is no more than 50mm.
In a preferred embodiment, the distance between two baffles 3 are not less than 30mm.
It is new that this practicality is described in detail using existing steam generator and inverted fluorescence microscope as specific embodiment below Type is used to measure the use process of the leaf chamber of leaf cross-section chlorophyll fluorescence:
1) pedestal 11 is fixed on the objective table of inverted fluorescence microscope;
2) selection needs the fresh plant leaf observed, and avoids the blade that vein part cuts out 1cm*1cm sizes with blade 8;
3) gasket 22 with water is bedewed, and between the blade 8 cut is fixed on two gaskets 22, makes the cross section of blade 8 Edge keeps flushing with two gaskets, 22 bottom;
4) cross section of blade 8 will be made towards the object lens of inverted fluorescence microscope in 2 insertion baffle 3 of blade folder;
5) upper cover 12 and pedestal 11 are fixed by screws into leaf chamber body 1, and check the airtight of leaf chamber body 1 Property;
6) gas outlet of steam generator is connected into check valve 6, opens steam generator, water vapour is passed through In leaf chamber body 1, opening fan 5 makes water vapour be uniformly filled in leaf chamber body 1;
7) humidity for setting humidity sensor by the moisture control function of steam generator is more than 70%, and will be wet Spend in sensor insertion through hole 13, adjust the gas flow of steam generator and duration of ventilation make it is wet in leaf chamber body 1 Degree reaches requirement of experiment;
8) light supply apparatus is opened, external light source, which enters through light source opening in leaf chamber body 1, shines the cross section of blade 8 It penetrates, the cross section of blade 8 proceeds by photosynthesis;
9) inverted fluorescence microscope is adjusted, the cross section mesophyll tissue for making blade 8 is high-visible, to 8 cross section of blade Chlorophyll fluorescence yield is measured.
As shown in figure 3, it is apparent that compared with using the easy device for measuring blade 8 cross section, using this practicality New leaf chamber is measured the chlorophyll fluorescence yield of 8 cross section of blade the fluorescence pollution that can reduce by 8 surface of blade, protects 8 moisture of blade is held, makes fluorescence measurement more accurately and reliably.
The various embodiments described above are merely to illustrate the utility model, wherein the structure of each component, connection mode and manufacture craft Deng can all be varied from, every equivalents carried out on the basis of technical solutions of the utility model and improvement, It should not exclude outside the scope of protection of the utility model.

Claims (10)

  1. It is 1. a kind of for measuring the leaf chamber of leaf cross-section chlorophyll fluorescence, which is characterized in that the leaf chamber include leaf chamber body and Blade presss from both sides;
    The leaf chamber body is the body structure being detachably connected by pedestal and upper cover;
    The base top interval setting is useful for plugging two light transmission baffles of the fixed blade folder, and the base bottom is set There is photomask, offer to be convenient for the light hole for observing blade on the photomask;
    Through hole and check valve are provided on the upper lid, the through hole is used to plug the humidity sensor of fixed gas generating means Device, the check valve are used to connect the gas outlet of the gas generating unit, and the upper cover lower part is additionally provided with to connect light The light source opening of source device.
  2. 2. a kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence as described in claim 1, which is characterized in that described Blade folder includes spring clip and gasket, and the spring clip includes two fold-line-shaped side plates, and the top plate of the two fold-line-shaped side plates is opposite Side is fixedly connected with spring, and a gasket for sandwiched blade is fixedly installed in each fold-line-shaped side plate interior sides.
  3. A kind of 3. leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence as claimed in claim 2, which is characterized in that two institutes Fold-line-shaped side plate is stated using light transmissive material, two gaskets use lighttight black sponge material.
  4. A kind of 4. leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence as claimed in claim 2, which is characterized in that two institutes The bottom of gasket is stated with the bottom of the two fold-line-shaped side plates in the bottom of same horizontal line or two gaskets to be higher than described in two 1~2mm of bottom of fold-line-shaped side plate.
  5. 5. a kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence as described in claim 1, which is characterized in that be located at A fan is fixedly installed in the leaf chamber bodies top of the blade folder top.
  6. 6. a kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence as described in claim 1, which is characterized in that described Sealing ring is provided between pedestal and upper cover.
  7. 7. a kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence of such as claim 1 to 6 any one of them, feature It is, the light source opening uses slit shape structure.
  8. 8. a kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence of such as claim 1 to 6 any one of them, feature It is, the pedestal is more than 95% silica glass material using light transmittance.
  9. 9. a kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence of such as claim 1 to 6 any one of them, feature It is, the distance between two described baffles are not less than 30mm.
  10. It is 10. special if claim 1 to 6 any one of them is a kind of for measuring the leaf chamber of leaf cross-section chlorophyll fluorescence Sign is that the leaf chamber body uses the body structure of 10cm*10cm*6cm, and the height of the blade folder is not more than 50mm.
CN201721348899.1U 2017-10-19 2017-10-19 A kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence Expired - Fee Related CN207408306U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721348899.1U CN207408306U (en) 2017-10-19 2017-10-19 A kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721348899.1U CN207408306U (en) 2017-10-19 2017-10-19 A kind of leaf chamber for being used to measure leaf cross-section chlorophyll fluorescence

Publications (1)

Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109142218A (en) * 2018-07-16 2019-01-04 西北农林科技大学 A method of utilizing photosynthesis measurement system measurement different times vegetable seeds, fruit photosynthesis
CN114646621A (en) * 2022-03-21 2022-06-21 江苏大学 Leaf in-situ dark adaptation device and method for chlorophyll fluorescence monitoring

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109142218A (en) * 2018-07-16 2019-01-04 西北农林科技大学 A method of utilizing photosynthesis measurement system measurement different times vegetable seeds, fruit photosynthesis
CN114646621A (en) * 2022-03-21 2022-06-21 江苏大学 Leaf in-situ dark adaptation device and method for chlorophyll fluorescence monitoring
WO2023179354A1 (en) * 2022-03-21 2023-09-28 江苏大学 Leaf in-situ dark adaptation device and method for chlorophyll fluorescence monitoring

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Granted publication date: 20180525