Nishijima T, Koshioka M, Yamazaki H, Mander L N
a National Research Institute of Vegetables , Ornamental Plants and Tea, 360 Kusawa, Ano-cho, Age-gun, Mie 514-23 , Japan.
b Research School of Chemistry, The Australian National University , G.P.O. Box 4, Canberra A.C.T. 2601 , Australia.
Biosci Biotechnol Biochem. 1997 Jan;61(10):1763-5. doi: 10.1271/bbb.61.1763.
The metabolism of gibberelline (GAs) in intact plants of Raphanus sativus was investigated. With [(2)H]GA feeds, [(2)H]GA1 from [(2)H]GA4, and [(2)H]GA4 and [(2)H]GA20 from [(2)H]GA9 were metabolized. Since [(2)H]GA20 was not converted into [(2)H]GA1, endogenous GA1 may have been biosynthesized from GA9 via GA4 rather than from GA20. The radioactivity of [(3)H]GA9 and [(3)H]GA20 was much more strongly transported among the plant organs than that of [(3)H]GA1 and [(3)H]GA4.
对萝卜完整植株中赤霉素（GAs）的代谢进行了研究。用[（2）H]GA饲喂后，[（2）H]GA4代谢生成[（2）H]GA1，[（2）H]GA9代谢生成[（2）H]GA4和[（2）H]GA20。由于[（2）H]GA20未转化为[（2）H]GA1，内源性GA1可能是通过GA4由GA9生物合成而来，而非由GA20合成。[（3）H]GA9和[（3）H]GA20的放射性在植物器官间的运输比[（3）H]GA1和[（3）H]GA4强烈得多。
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