Chinese Journal of Polar Research

ADVANCES IN POLAR SCIENCE ›› 2011, Vol. 23 ›› Issue (3): 183-188.DOI: 10.3724/SP.J.1084.2011.00183

• Contents • Previous Articles     Next Articles

ANALYSIS OF CHLOROPHYLL FLUORESCENCE CHARACTERISTICS ON TEN KINDS OF POLAR MICROALGAE

Guang Yingzhi1,2，Zhang Fang2，Zhang Qianqian1，Cai Minghong2，He Jianfeng2   

  1. 1 College of Chemistry and Chemical Engineering，Ocean University of China

    2 Polar Research Institute of China，Key Labratory for Polar Science，SOA

  • Received:2011-03-04 Revised:2011-03-29 Online:2011-09-30 Published:2011-09-30
  • Contact: Ying-Zhi GUANG

PDF (PC)

1282

Abstract:

Marine phytoplanktons are important primary producer in aquatic environment and the productivity of them is related to its photosynthetic capacity. Chlorophyll fluorescence parameters (Fv /Fo, Fv /Fm, ΦPSⅡand NPQ) as well as the rapid light curve containing photosynthetic efficiency (a), maximal electron transport rate (Pm) and minimum saturating irradiance (Ik) of ten kinds of polar microalgae strains were measured by Water-PAM respectively. Nine kinds of strains except for CCMP2084 were in healthy physiological status. Fv /Fo of eight strains, whose values were higher than 1.0, showed activity sequence of PSⅡ as CCMP1056＞CCMP1204＞CCMP165＞CCMP2095＞CCMP1309＞CCMP445＞CCMP213＞CCMP2087. Besides, three strains including Chaetoceros brevis CCMP165, Attheya sp.CCMP213 and Thalassiosira sp CCMP1056, exhibit 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.

Key words: Rapid Light Curve