The Adptability Of M.nipponense To Salinity And PH

Two experiments were conducted on the research of the adaptability of M.nipponense to different salinity and pH. Mnipponense were raised in salinity O%o, 7%o, l4%~ and 21%o and pH value of 5.6 6.6, 7.6 respectively for 14 days. The result clearly showed that the salinity have significant influence on the osmotic pressure. M nipponense adapted to the salinity by ionic regulation. The survival rate was not affected by external salinity. The content of ion and the activity of Na~, K~- ATPase were increased as external salinity was rise. At salinity of 1496o M.nipponense had the highest growth. In comparison to pH 7.6, pH 5.6 and 6.6 did harm to the growth. They inhabited the activity of Na~, K~-ATPase greatly, and the content of Na~, K~, C1 was decreased with the declination of pH. Furthermore the content of protein and glucose in blood and RNA were very low.