A procedure for isolation of proplastids from etiolated maize leaves.

A procedure for isolation of proplastids from etiolated maize leaves.
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DOI:
10.1083/jcb.38.1.238
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发表时间:
1968-07
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Jacobson AB
Jacobson AB
中科院分区:
其他
文献类型:
--
作者:
Jacobson AB

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材料和方法原质体是从黄化玉米叶片(菌株WF9 X B37, Illinois Foundation Seeds, Champaign, Illinois)中分离出来的,当前两片叶子完全出现时。植物在27℃下生长,幼苗一般为8-10天。在昏暗的绿色安全灯下,将叶子在含有0.5 M Tris-HC1 (pH 8.0), 0.5 M蔗糖,0.001 M MgCI2和0.2%牛血清白蛋白的溶液中切碎并均质。每克(新鲜重量)的叶子使用大约3毫升的研磨液。匀浆通过两层Miracloth (Chico-)过滤
MATERIALS AND METHODSProplastids are isolated from etiolated maize leaves (strain WF9 X B37, Illinois Foundation Seeds, Champaign, Ill.) when the first two leaves are fully emerged. The plants are grown at 27 C, and the seedlings are generally 8-10 days old. The leaves are minced and homogenized in a chilled mortar and pestle under a dim green safe-light in a solution containing 0.5 M Tris-HC1 (pH 8.0), 0.5 M sucrose, 0.001 M MgCI2, and 0.2% bovine serum albumin. Approximately 3 ml of grinding solution are used for each gram (fresh weight) of leaves. The homogenate is filtered through two layers of Miracloth (Chico-
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