| 甘蔗不同基因型2种光合酶的热稳定性 |
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| 引用本文： | 曹干.甘蔗不同基因型2种光合酶的热稳定性[J].福建农林大学学报(自然科学版),1990(1). |
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| 作者姓名： | 曹干 |
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| 作者单位： | 福建农学院甘蔗综合研究所 广东省农业科学院经济作物研究所 |
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| 摘 要： | 甘蔗不同基因型之间叶片 PEP 羧化酶的热稳定性有较大的差异。甘蔗叶片 PEP 羧化酶对高温敏感,在伸长盛期酶热稳定性相对较高;随着环境温度的下降,到伸长后期酶热稳定性明显变低,甘蔗叶片 NADP-苹果酸酶的热稳定性很高,不同基因型之间差异不大。显然,热逆境不会导致 NADP-苹果酸酶的严重失活而影响光合作用。
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| 关 键 词： | 甘蔗 PEP 羧化酶 NADP-苹果酸酶 热稳定性 |
THERMOSTABILITY OF TWO PHOTOSYNTHETIC ENZYMES IN SUGARCANE GENOTYPES |
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| Cao Gan.THERMOSTABILITY OF TWO PHOTOSYNTHETIC ENZYMES IN SUGARCANE GENOTYPES[J].Journal of Fujian Agricultural and Forestry University,1990(1). |
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| Authors: | Cao Gan |
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| Abstract: | It was showed that the thermostability of leaf PEP carboxylase was different be- tween 7 sugarcane genotypes.Leaf PEP carboxylase of sugarcane was sensitive to high tem- perature.The enzyme was relatively thermostable at abundant elongating stage,and at late elongaing stage it became less thermostable markly as the environmental temperature varied from high to low.Leaf NADP-malic enzyme of sugarcane was very thermotable.No dif- ferences were found between 7 sugarcane genotypes.Apparently,the thermal environment could not easily influence the photosynthesis of sugarcane by inactivating the enzyme seriously. |
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| Keywords: | sugarcane PEP carboxylase NADP-malic enzyme thermostability |
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