Environmental effects on dynamics of fruit growth and photoassimilate translocation in tomato plants. I. Effects of irradiation and day/night air temperature.
Environmental effects on dynamics of fruit growth and photoassimilate translocation in tomato plants. I. Effects of irradiation and day/night air temperature.
复制标题
环境对番茄植株果实生长动态和光同化物易位的影响。
DOI：
10.2525/ecb1963.36.159
复制
发表时间：
1998
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影响因子：
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通讯作者：
H. Eguchi
中科院分区：
文献类型：
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作者：
M. Kitano;T. Araki;H. Eguchi
番茄果实生长和光合物质运转动态研究分析了光照和昼夜气温对果实和叶片呼吸、光合和蒸腾作用的影响。果实生长的解释约80%的液流输入到水果，几乎没有受到影响的蒸腾水分从水果损失。光照明显促进了果实的生长和同化物的运输，在25/15°C的昼夜气温条件下，约70%的果实生长和80%的同化物运输发生在光照期，叶片光合作用和果实呼吸作用高度活跃。特别是在光照期，当果实周围气温升高到25°C时，果实的生长和同化物的运转显著增加，果实的呼吸作用被激活。另一方面，在没有气温影响的情况下，果实生长和光合物质运输在黑暗期间被发现减少。这些结果表明，果实中糖的能量依赖性运输过程是调控光下番茄果实生长和同化物运转的决定性过程之一。
Dynamics of fruit growth and photoassimilate translocation in tomato plants (Lycopersicon esculentum Mill.) as affected by irradiation and day/night air temperature were analyzed in relation to respiration, photosynthesis and transpiration of the fruit and the leaf. Fruit growth was explained by about 80% of sap flux imported into the fruit and was scarcely affected by transpirational water loss from the fruit. Irradiation clearly enhanced fruit growth and photoassimilate translocation, and about 70% of fruit growth and about 80% of photoassimilate translocation were brought during the light period with highly activated leaf photosynthesis and fruit respiration under day/night air temperature of 25/15°C. In particular, when air temperature around fruits rose to 25°C in the light period, remarkable increases in fruit growth and photoassimilate translocation were found with the activated fruit respiration. On the other hand, decreases in fruit growth and photoassimilate translocation were found during the dark period without effects of air temperature. From these results, it was suggested that energy-dependent transport process of sugar in fruits is one of the determinant processes regulating fruit growth and photoassimilate translocation in tomato plants under light.
Araki,T.：“通过番茄花梗的光同化物通量的评估。”
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Eguchi, H.：“利用自然光强度作为反馈信号，在气温变量控制下黄瓜植物（Cucumis sativus L.）的生长。”
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Araki,T.：“番茄果实的呼吸、液流、水分平衡和膨胀生长。”
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