Swain T, latroduction to plant Biochemistry.Goodwin T W edi 1983，557
[3]
Schmidt R and Mohr H, Evidence that a mustard seedling responds to the amount of Pfr and not to the pfr/Ptot ratio, plant Cell E nvirons 1982 (5):494499
[4]
Loewus F A. L-Ascorbic Acid: Metabolisms Biosynthesiss Function, In: Stumpf P K and Coaa E E ed. The Biochemistry；,f Plant;Vol 3.New York: Academic Press Inca 1980: 93
