Effect of low level SO2 on carbohydrate metabolism of Picea asperata seedlings

Abstract

Abstract: Determinations of CO₂ uptake rate,sucrose content,activities of sucrose phosphate synthase (SPS),sucrose synthase(SS)and invertase and ATP/ADP value show that low level SO₂(200μg·m^-3)can instantaneously stimulate the uptake of CO₂ by Picea asperata seedlings.Compared with control,seedlings exposed to low level SO₂ show an obvious decline in SPS and SS activities and sucrose content and have a low value of ATP/ADP,which means that the physiological and biochemical processes of seedlings have been disturbed by SO₂ before the appearance of visible injuries.

Key words: Picea asperata, SO₂, Carbohydrate metabolism, elevation, life form, nutrient status, water use efficiency

KongFanxiang. Effect of low level SO₂ on carbohydrate metabolism of Picea asperata seedlings[J]. Chinese Journal of Applied Ecology, 1996, 7(1): 99-102.

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Effect of low level SO₂ on carbohydrate metabolism of Picea asperata seedlings

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