极地研究2011，Vol.23Issue(3)：183-188,6.DOI:10.3724/SP.J.1084.2011.183
10种极地微藻叶绿素荧光特征分析
ANALYSES OF CHLOROPHYLL FLUORESCENCE CHARACTERISTICS ON TEN STRAINS OF POLAR MICROALGAE
摘要
Abstract
Marine phytoplankton are important primary producers in the aquatic environment, and their productivity is related to their photosynthetic capacity. Chlorophyll fluorescence parameters (FvFo, Fv/Fm, ΦPSII and NPQ), as well as the rapid light curves containing photosynthetic efficiency ( a), maximal electron transport rate (Pm ) and minimum saturating irradiance (Ik) of ten kinds of polar microalgae strains were measured, respectively, by Water-PAM. Nine strains were in a healthy physiological state, but CCMP2084 was not. The FvFo of eight strains, whose values were higher than 1.0, showed activity sequence of PSH as CCMP1056 > CCMP1204 > CCMP165 > CCMP2095 > CCMP1309 > CCMP445 > CCMP213 > CCMP2087. In addition, the three strains Chaetoceros brevis CCMP165, Attheya sp. CCMP213 and Thalassiosira sp. CCMP1056 exhibited stronger photoprotection with the NPQ value higher than 2.0. Compared by Ik value, the sequence of light tolerance was CCMP213 > CCMP1056 >CCMP165. The strains of Attheya sp. CCMP213 and Thalassiosira sp. CCMP1056 showed better adaptation to high irradiance than Chaetoceros brevis CCMP165.关键词
极地微藻叶绿素荧光非光化学淬灭快速光曲线Key words
polar microalgae/chlorophyll fluorescence/non-photochemical quenching/rapid light curves引用本文复制引用
光应芝,张芳,张前前,蔡明红,何剑锋..10种极地微藻叶绿素荧光特征分析[J].极地研究,2011,23(3):183-188,6.基金项目
国家自然科学基金项目(41076130)、海洋公益性行业专项(200805095)和中国极地科学战略研究基金(20080902)资助 （41076130）
