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.