Adams C A, Rinne R W
United States Regional Soybean Laboratory, University of Illinois, Urbana, Illinois 61801.
Plant Physiol. 1969 Sep;44(9):1241-6. doi: 10.1104/pp.44.9.1241.
ATP sulfurylase activity varied greatly among different leaves on the soybean plant [Glycine max (L.) Meer.], and high levels of activity did not appear in the leaves until the seedlings were about 3 weeks old. In general, leaves from the top of the plant had a higher activity than leaves from the bottom of the plant. A much greater activity was found in soybean leaves than in soybean roots. The absence of sulfate in the nutrient solution resulted in higher enzyme activity in leaves from young plants and in lower activity in leaves from older plants. Over the growing season, however, ATP sulfurylase activity appeared to be related to sulfur content of the leaf. Several other plant species also had measurable levels of ATP sulfurylase.
大豆植株[Glycine max (L.) Meer.]不同叶片间的ATP硫酸化酶活性差异很大，直到幼苗约3周龄时叶片中才出现高活性水平。一般来说，植株顶部叶片的活性高于底部叶片。大豆叶片中的活性比大豆根中的活性高得多。营养液中缺乏硫酸盐会导致幼龄植株叶片中酶活性较高，而老龄植株叶片中酶活性较低。然而，在整个生长季节，ATP硫酸化酶活性似乎与叶片中的硫含量有关。其他几种植物也有可测量水平的ATP硫酸化酶。
