论文部分内容阅读
用马叙葡萄柚和哈姆林甜橙为试材,观察运输到果实内的C~(14)标记的光合产物的分布。将一片靠近果实的源叶曝露在~(14)CO_2中1小时,随即在正常空气中5小时。然后将与源叶位置相对应的果实切片,並测定其C~(14)含量。在葡萄柚果实中,直接与源叶相对应的果实部位,含有占果实放射性总量75%的放射性。6小时以后,从果实中部横切开的两半,显示出花柱末端的C~(14)光合产物含量,平均仅为果柄末端的67%。分离开的果肉、果皮和种
The distribution of C ~ (14) labeled photosynthetic products transported into the fruit was observed using the grapefruits Musa and Hamlin sweet orange as test materials. A source leaf close to the fruit is exposed to ~ (14) CO_2 for 1 hour, then in normal air for 5 hours. Then the fruit corresponding to the position of the source leaf was sliced and the content of C ~ (14) was determined. In grapefruit fruit, the fruit that directly corresponds to the source leaves contains 75% of the total radioactivity of the fruit. After 6 hours, the cross-cuts from the middle of the fruit show the C 14 photosynthetic product at the end of the style, averaging only 67% of the end of the stalk. Separated pulp, peel and species