EFFECT OF NITROGEN, PHOSPHORUS OR POTASSIUM ON THE PHOTOSYNTHETIC RATE AND RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE CONTENT IN RICE LEAVES DURING EXPANSION
EFFECT OF NITROGEN, PHOSPHORUS OR POTASSIUM ON THE PHOTOSYNTHETIC RATE AND RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE CONTENT IN RICE LEAVES DURING EXPANSION
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DOI：
10.1080/00380768.1984.10434668
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发表时间：
1984-01-01
影响因子：
2
通讯作者：
OHIRA, K
中科院分区：
文献类型：
--
作者：
MAKINO, A;MAE, T;OHIRA, K
研究了 N、P 和 K 供应对水稻第 12 叶展开时光合速率和 1,5-二磷酸核酮糖 (RuBP) 羧化酶含量的影响。使用开放式红外气体分析系统测定光合速率。通过火箭免疫电泳测量RuBP羧化酶的量。氮含量的增加促进了叶片光合作用的速率。另一方面，当磷或钾的含量分别超过干重的0.2%和1.3%时，对展开叶片的光合作用没有影响。叶片RuBP羧化酶含量与氮含量密切相关。然而，羧化酶与P或K含量之间的关系并不正。氮的供应量决定了叶片中RuBP羧化酶蛋白的含量，从而决定了光合作用的速率。 P、K并不是直接影响RuBP羧化酶含量的营养元素。
Effect of the supply of N, P and K on the photosynthetic rate and the ribulose-1,5-bisphosphate (RuBP) carboxylase content was examined in the expanding 12th leaf blade of rice. The photosynthetic rate was determined using an open IR gas analysis system. The amount of RuBP carboxylase was measured by rocket immunoelectrophoresis. The rate of leaf photosynthesis was promoted by the increase in N content. On the other hand, the supply of P or K had no effect on photosynthesis in the expanding leaf when the contents exceeded 0.2 and 1.3% on a dry wt basis, respectively. The RuBP carboxylase content of the leaf was closely correlated with the N content. However, the relationship between the carboxylase and P or K contents was not positive. The supply of N determined the content of RuBP carboxylase protein in the leaf and consequently the rate of photosynthesis. P and K were not the nutrients which directly affected the content of RuBP carboxylase.