坛紫菜自由丝状体对无机碳的利用  

Utilization of inorganic carbon in freeliving conchocelis of Porphyra haitanensis

作　　者：骆其君[1] 裴鲁青[1] 潘双叶[1] 王勇[1] 费志清[1] 

机构地区：[1]宁波大学海洋生物工程实验室,浙江宁波315211

出　　处：《水产学报》2002年第5期477-480,共4页Journal of Fisheries of China

基　　金：国家海洋863项目资助(819-03-b)

摘　　要：Freeliving Porphyra haitanensis conchocelis was cultured under continual light, then it was treated with Van, DIDS and SITS, the inhibitors of inorganic carbon utilization, to study the mechanism of inorganic carbon utilization in the conchocelis. The results indicate that Van inhibits the utilization of inorganic carbon most, with a rate of 71.3%, and the rates of DIDS and SITS are relatively lower, 42% and 35.5% respectively. The inhibition rate of Az is 25.3%, which indicates the external CA is not an important part of its inorganic carbon uptake. A complementary conclusion is that the main part of inorganic carbon absorption in P.haitanensis conchocelis is through active transport of HCO3- and CO2.Freeliving Porphyra haitanensis conchocelis was cultured under continual light, then it was treated with Van, DIDS and SITS, the inhibitors of inorganic carbon utilization, to study the mechanism of inorganic carbon utilization in the conchocelis. The results indicate that Van inhibits the utilization of inorganic carbon most, with a rate of 71.3%, and the rates of DIDS and SITS are relatively lower, 42% and 35.5% respectively. The inhibition rate of Az is 25.3%, which indicates the external CA is not an important part of its inorganic carbon uptake. A complementary conclusion is that the main part of inorganic carbon absorption in P.haitanensis conchocelis is through active transport of HCO3- and CO2.

关 键 词：利用 坛紫菜 自由丝状体 无机碳 主动运输 

分 类 号：Q949.292.1[生物学—植物学] S[农业科学]