Decreased energy synthesis is partially compensated by a switch to sucrose synthase pathway of sucrose degradation in restricted root of tomato plants

Tomato (Solanum lycopersium L.) plants were grown hydroponically to investigate the changes of energy metabolism and adaptive mechanism in response to root restriction. Root restriction resulted in a significant increase in root lipid peroxidation and reduction in leaf net CO(2) assimilation rate, w...

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Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 46(2008), 12 vom: 15. Dez., Seite 1040-4
1. Verfasser: Shi, Kai (VerfasserIn)
Weitere Verfasser: Fu, Li-Jun, Dong, De-Kun, Zhou, Yan-Hong, Yu, Jing-Quan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Adenosine Triphosphate 8L70Q75FXE Alcohol Dehydrogenase EC 1.1.1.1 L-Lactate Dehydrogenase EC 1.1.1.27 Electron Transport Complex IV EC 1.9.3.1 mehr... Glucosyltransferases EC 2.4.1.- sucrose synthase EC 2.4.1.13
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520 |a Tomato (Solanum lycopersium L.) plants were grown hydroponically to investigate the changes of energy metabolism and adaptive mechanism in response to root restriction. Root restriction resulted in a significant increase in root lipid peroxidation and reduction in leaf net CO(2) assimilation rate, which was accompanied by increase of alcohol dehydrogenase (ADH; EC 1.1.1.1) and lactate dehydrogenase (LDH; EC 1.1.1.27) activities. Total, cytochrome pathway, and alternative pathway respirations were all decreased in the roots after 15 days of root restriction treatment. Accompanied with the decrease of ATP content, ratio of invertase/sucrose synthase activity was increased in the restricted roots together with a decrease in glucose content and an increase in fructose content. We concluded that the decreased energy synthesis under root restriction condition was partially compensated by the energy-conserving sucrose synthase pathway of sucrose metabolism 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a 8L70Q75FXE  |2 NLM 
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650 7 |a EC 1.9.3.1  |2 NLM 
650 7 |a Glucosyltransferases  |2 NLM 
650 7 |a EC 2.4.1.-  |2 NLM 
650 7 |a sucrose synthase  |2 NLM 
650 7 |a EC 2.4.1.13  |2 NLM 
700 1 |a Fu, Li-Jun  |e verfasserin  |4 aut 
700 1 |a Dong, De-Kun  |e verfasserin  |4 aut 
700 1 |a Zhou, Yan-Hong  |e verfasserin  |4 aut 
700 1 |a Yu, Jing-Quan  |e verfasserin  |4 aut 
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