| SO2、NO2、O3及其复合物对水稻体内乙烯释放的影响 |
| 摘要点击 1030 全文点击 714 修订日期：1993-11-16 |
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| 中文关键词 水稻 SO2 NO2 O3 熏气 乙烯 乙烷 释放 |
| 英文关键词 rice sulfur dioxide nitrogen dioxide ozone fumigation ethylene ethane release |
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| 中文摘要 |
| 乙烯是植物体内的一种内源激素,当植物受到环境污染时,体内乙烯的释放量将发生变化。本文主要报道了水稻受SO2、NO2、O3单一及其复合物熏气对体内乙烯释放的影响。结果表明,水稻受SO2、NO2、O3单一及其复合物熏气后。体内乙烯释放量增加,在一定条件下反应出环境污染的程度;当O3浓度不变时,水稻体内乙烯释放量与SO2、NO2熏气浓度成正比,其中,O3+SO2对水稻体内乙烯释放量的影响程度大于O3+NO2;当SO2+NO2两种气体熏气浓度之和一定时,提高相同比例的SO2浓度,对水稻体内乙烯释放量的增加作用大于NO2;水稻经4.0×10-6NO2熏气2h,叶片出现漂白斑或黄色斑,此时,乙烯、乙烷的释放量分别为7.70nl/(g·F·W·h-1)和2.30nl/(g·F·W·h-1). |
| 英文摘要 |
| A study was carried out on the effects of fumigation with sulfur dioxide(SO2),nitrogen dioxide(NO2),ozone(O3)and mixtures thereof on the release of ethylene from rice plant being fumigated.It was found that the emission of ethylene as an internal hormone of plant increases when the crop rice is fumigated with SO2,NO2,O3,or mixtures thereof.This can be considered as an indicator for the level of environmental pollution.If the O3 level is constant, the emission of ethylene from rice is directly proportional to the levels of SO2 and NO2 in fumigating gases,where O3+SO2 have a greater effect on the emission of ethylene from rice than O3+ NO2.If the total level of both SO2 and NO2 altogether is kept constant,an increased level of SO2 can lead to a higher emission of ethylene than an increased level of NO2.A fumigation with NO2 at a concentration of 4 ppm for 2 hours has caused the leaves of rice to have bleached or yellow spots when ethylene and ethane are released at 7.70 and 2.30 nl/g·F·W·h,respectively. |
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