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PROPERTIES OF RuBP CARBOXYLASE/OXYGENASE IN A MUTANT TOBACCO

PROPERTIES OF RuBP CARBOXYLASE/OXYGENASE IN A MUTANT TOBACCO

作     者:李立人 S.D.KUNG LI LIREN(Shanghai Institute of Plant Physiology, Academia Sinica) S. D. KUNG (University of Maryland, USA)

作者机构:Shanghai Institute of Plant Physiology Academia Sinica University of MarylandUSA 

出 版 物:《Chinese Science Bulletin》 (Science Bulletin)

年 卷 期:1987年第32卷第20期

页      面:1420-1422页

学科分类:09[农学] 0901[农学-作物学] 

主  题:tobacco mutant Nicotiana photosynthesis carboxylase greenhouse yellow oxygenase slower subunit 

摘      要:The aurea mutant (Su/su)of tobacco is a nuclear mutation found in Nicotiana tobacum Var. John Williams Broadleaf (Su/su). Under greenhouse conditions and atmosphere CO2 levels, the yellow mutant tobacco (Su/su) grows much slower than the dark green wild type (su/su). Zelitch reported that the yellow mutant has a higher photorespiratory rate and a lower net rate of photosynthesis, compared with the wild type. RuBP carboxylase/oxygenase is a key enzyme in photosynthesis and photorespiration, and the small subunit of the enzyme is nuclear-encoded. This study was designed to examine if the nuclear gene mutation influenced the structure and properties of the enzyme.

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