Effects of Doubled CO2 Concentration on Light Energy Absorption and Excitation Energy Distribution Between PS II and PS I in Chloroplasts of Weeping Willow and Eucommia

Abstract

Abstract: Under CO2 doubling, the content of chlorophyll and carotenoid per unit fresh weight and er unit area of leaves from weeping willow ( Salix babylonica L. ) as well as chlorophyll of eucommia ( Eucommia ulmoides Oliv. ) were raised, but carotenoid content of eucommia was reduced. The capability of light energy absorption of chloroplasts and regulative capability of excitation energy distribution between PS Ⅱ and PS Ⅰ were also raised by doubled CO2 condition.

Key words: Salix babylonica, Eucommia ulmoides, Doubled CO2 concentration, Photosynthetic pigments, Absorption light energy, Excitation energy distribution

Zhang Qi-de, Lu Cong-ming, Liu Li-na, Feng Li-jie and Kuang Ting-yun. Effects of Doubled CO2 Concentration on Light Energy Absorption and Excitation Energy Distribution Between PS II and PS I in Chloroplasts of Weeping Willow and Eucommia[J]. J Integr Plant Biol., 1997, 39(9): -.

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Effects of Doubled CO2 Concentration on Light Energy Absorption and Excitation Energy Distribution Between PS II and PS I in Chloroplasts of Weeping Willow and Eucommia

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