Buffer liquid suitable for ploidy identification of various plants by flow cytometer, and preparation and use methods thereof
A technology of flow cytometry and ploidy identification, which is applied in the field of plant breeding, can solve the problems of many buffer components, narrow application range, complex preparation, etc., and achieve the effect of convenient application, low cost and simple preparation
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Embodiment 1
[0043] Embodiment 1, the ploidy identification of citrus
[0044] Step 1, preparation of buffer:
[0045] (1) Weigh 88.2 g of trisodium citrate and 200 g of sodium chloride, dissolve them in 900 mL of double-distilled water, adjust the pH to 7.0 with hydrochloric acid, add double-distilled water to set the volume to 1000 mL, and obtain a buffer mother solution, which can be stored at room temperature for a long time.
[0046](2) When in use, dilute the buffer mother solution 20 times with double distilled water to obtain a working solution, containing 0.015mol / L trisodium citrate and 10% sodium chloride in mass concentration.
[0047] Step 2, the use of buffer:
[0048] (1) Take a little young leaves and place them in a plastic plate;
[0049] (2) Add 50 μL of working solution, chop the material with a sharp blade, add 1000 μL of buffer solution, shake slightly to mix;
[0050] (3) Pass the suspension through a 500-mesh sieve and let it stand for a while or add 50 μg / mL of ...
Embodiment 2
[0053] Embodiment 2, the ploidy identification of tobacco
[0054] Step 1, preparation of buffer:
[0055] (1) Weigh 88.2 g of trisodium citrate and 200 g of sodium chloride, dissolve them in 900 mL of double-distilled water, adjust the pH to 7.0 with hydrochloric acid, add double-distilled water to set the volume to 1000 mL, and obtain a buffer mother solution, which can be stored at room temperature for a long time.
[0056] (2) When in use, dilute the buffer mother solution 20 times with double distilled water to obtain cell hypertonic buffer, add Tween-20 to make the final concentration 0.25% (add 0.25 mL of Tween-20 per 100 mL of double distilled water 20), add β-mercaptoethanol so that the final concentration is 20mmol / L (add 0.14mL of β-mercaptoethanol to every 100mL of double-distilled water) to prepare a working solution, containing 0.015mol / L trisodium citrate, mass concentration 10% Sodium chloride, 0.25% Tween-20, 20mmol / L β-mercaptoethanol.
[0057] Step 2, the ...
Embodiment 3
[0062] Embodiment 3, the ploidy identification of kiwifruit
[0063] Step 1, preparation of buffer:
[0064] (1) Weigh 88.2 g of trisodium citrate and 200 g of sodium chloride, dissolve them in 900 mL of double-distilled water, adjust the pH to 7.0 with hydrochloric acid, add double-distilled water to set the volume to 1000 mL, and obtain a buffer mother solution, which can be stored at room temperature for a long time.
[0065] (2) When in use, dilute the buffer mother solution 20 times with double-distilled water to obtain cell hyperosmotic buffer, add Tween-20 to make the final concentration 0.1% (add 0.1mL Tween-20 per 100mL of double-distilled water 20), add β-mercaptoethanol, and add 0.1mL of β-mercaptoethanol per 100mL of double-distilled water to prepare a working solution.
[0066] Step 2, the use of buffer:
[0067] (1) Take a little young leaves and place them in a plastic plate;
[0068] (2) Add 200 μL of working solution, chop the material with a sharp blade, a...
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