NaCl对杜氏盐藻生长的效应

EFFECT OF NaCl ON THE GROWTH OF DUNALIELLA SALINE

不同浓度的ＮａＣｌ对杜氏盐藻的生长有显著影响，在室内温度２５±２℃，光照７０００Ｌｕｘ的培养条件下，盐藻生长的最适盐度为１４％，低盐有利于可溶性糖的积累，而可溶性蛋白质的含量以及过氧化物酶的活性以１８％为最高，盐藻体内脯氨酸含量积累不随外界盐度增大而增大，说明盐藻细胞内的渗透调节物质不是脯氨酸。

Different concentration of NaCl obviously influenced on the growth ofDunaliella Saline. The most suitable salt concentration of Dunaliella Saline growth is 1 4%NaCl at 25±2℃ and 7000Lux indoor,lower concentration woum be favourable for accu-mulation of dissoluble sugar.The content of dissoluble protein and the activety of peroxidaseare highest at 18%NaCl. The accumulation of proline in Dunaliella Saline did not increasedwith the increasing of NaCl.It shows that the osmotic regulater of the cell of DunaliellaSaline isn' t the proline.