Fraction of nucleus out of cell volume in high light acclimated cells

Value 2.4 % Range: ±1.2 %
Organism Alga Nannochloropsis sp.
Reference Tamar Fisher, Tamar Berner, David Iluz, and Zvy Dubinsky, The kinetics of the photoacclimation response of Nannochloropsis sp. (Eustigmatophyceae): A study of changes in ultrastructure and PSU density. J. Phycol. 34, 818–824 (1998) Table - link
Method The High-light cultures were grown under 650 mmol quanta×m^-2×s^-1 (HL). Transmission electron microscopy, TEM analysis was carried out by applying two methods: superimposition of an array of short lines (Freere and Weibel 1967) and ImagePro1 analysis (Fisher et al. 1998). Cell volume of the HL- and LL- acclimated cells was calculated from their diameters, measured with a light microscope.
Comments The value for cultures moved to low light (30 mmol quanta×m^-2×s^-1) increased to 11.1±2%. Nannochloropsis are unicellular, free-floating microalga that belong to Eustigmatophyceae, a group lacking any chlorophylls other than chlorophyll a (chl a)
Entered by Uri M
ID 105147