The Effects of Temperature on the Biomass and the Astaxanthin Output of Haematococcus pluvialis Effects of nitrogen and phosphorus nutrients on the growth of vegetative cells of Haematococcus pluvialis CG-11 Studies on temperature, illumination and pH of green vegetative cell of Haematococcus pluvialis CG-11 Effect of Vitamin-B1,Vitamin-B12 and Vitamin-H on the growth and carotenoid content of Haematococcus pluvialis Comparative studies on the growth of Haematococcus pluvialis in different culture medium EFFECT OF X-AND γ-IRRADIATION ON THE ULTRASTRUCTURE OF Haematococcus pluvialis Study on the Optimization of Haematococcus pluvialis Wall Broken and Extraction of Astaxanthin by SEM and RSM Effect of Photoperiod on Microalgae Haematococcus pluvialis Changes in Growth Rate and Ultrastructure of Haematococcus pluvialis After Mutagenesis Phylogenetic Analysis of IPP Isomerase Gene in Haematococcus pluvialis Astaxanthin Accumulation in the Green Alga Haematococcus pluvialis: Effects of Cultivation Parameters The study of spectrum characteristic of Haematococcus pluvialis