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030Selma

金虫 (正式写手)

[求助] 拟南芥seedling根部冷冻切片

有人做过拟南芥幼苗根部冷冻切片的吗?为什么我切的时候老是得不到完整的根部横切,感觉要不细胞瘪了,要不碎了。用的是FSC-22冷冻胶,放在负20冻着,试过冻好就切的,也是过冻久了再切的,切片厚度10微米至50微米都试过。也试了用4% formaldehyde 固定脱水后再包埋,或者直接包埋的。求有经验的人指导,不甚感激。

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030Selma

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