摘要：Normal 0 7.8 ? 0 2 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:????; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Mesophilic and cryogenic actinomycetes were isolated from water, quagmire soil , lakeside soil and saline wasteland soil in the Qinghai Lake by spreading samples on three kinds of agar media , in which content of NaCl was 70 g/ L. They were characterized according to routine methods, and detected their salt-tolerance. The results indicated that there were salt-tolerant, mesophilic and cryogenic actinomycetes in quagmire and lakeside soil of the Qinghai Lake and in saline wasteland soil nearby the Qinghai Lake. The amount in wasteland soil was the largest , followed by lakeside and swamp soil. All of the salt-tolerant actinomycetes identified were St reptomyces (92. 6 % of total) , and they were all albsporus. And 47.6 %, 19.0 %, and 33.3 % of the tested actinomycetes could tolerant NaCl concentration at 70 g/ L, 100 g/ L, and 150 g/ L respectively.
