玉米过氧化氢酶抑制剂的发育表达。
Developmental expression of a catalase inhibitor in maize.
机构信息
Department of Genetics, North Carolina State University, Raleigh, North Carolina 27607.
出版信息
Plant Physiol. 1976 Mar;57(3):351-2. doi: 10.1104/pp.57.3.351.
The expression of an endogenous catalase inhibitor has been studied during development of Zea mays. In the 3-day seedling, the inhibitor is expressed primarily in the scutellum and in the aleurone layer of the endosperm. These tissues also show the highest catalase activity at this stage. Inhibitor expression has also been studied temporally in the scutellum, roots, and shoot over the first 12 days of germination. Inhibitor expression shows an inverse relationship with catalase activity in the scutellum and in the shoot. The relationship is less rigid in the root, due probably to the low levels of inhibitor found in that tissue. The role of the inhibitor in catalase regulation is discussed.
内源过氧化氢酶抑制剂的表达已在玉米发育过程中进行了研究。在 3 天的幼苗中，抑制剂主要在盾片和胚乳的糊粉层中表达。在这个阶段，这些组织也表现出最高的过氧化氢酶活性。在萌发的头 12 天内，还在盾片、根和芽中对抑制剂的表达进行了时间研究。抑制剂的表达与盾片和芽中的过氧化氢酶活性呈负相关。在根中，由于该组织中发现的抑制剂水平较低，因此这种关系不太严格。讨论了抑制剂在过氧化氢酶调节中的作用。
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