PROPERTIES OF RuBP CARBOXYLASE/OXYGENASE IN A MUTANT TOBACCO
PROPERTIES OF RuBP CARBOXYLASE/OXYGENASE IN A MUTANT TOBACCO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
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.