席藻盐适应培养的研究

用０．２ｍｏｌ／Ｌ ＮａＣｌ作选择因子，可直接筛选得到耐０．２ｍｏｌ／Ｌ ＮａＣｌ席藻。在０．２ｍｏｌ／Ｌ ＮａＣｌ培养液中，席藻细胞逐日降解，到第３ｄ达最低点，３ｄ后细胞数上升。细胞降解随ＮａＣｌ浓度提高而加剧。在等渗浓度或等渗浓度以下，席藻能保持慢速增殖。维生素Ｂ１、吲哚乙酸、玉米素、赤霉素都未能提高席藻对盐类的培养适应能力。席藻对不同的盐溶液培养适应性有差异，而对多种盐复合溶液最能适应。

A STUDY ON CULTURE-ADAPTATION OF THE BLUE-GREEN ALGA PHORMIDIUM LUCIDUM TO SALTS

In the media containing 0.2mol/L of NaCl the cells of Phormidum lucidum were degredated day by day. Number of the cells was decreased to the lowest on the third day of culture. After three days the number of the cells was increased.The cell degredation was aggravated as the increased concentration of NaCl.Under isotonic or hypotonic concentrations the alga could proliferate slowly.Vitamin B, indole-acetic acid,zeatin and gibberellin could not give the alga to increase the salt-endurace.The cultureadaptation of alga to different salts was different.It was of the most endurance to the cumplex salt solutions.