State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, People's Republic of China.
Bioresour Technol. 2010 Sep;101(17):6778-84. doi: 10.1016/j.biortech.2010.03.108. Epub 2010 Apr 20.
Wheat straw black liquor is a notorious pulp mill wastewater with very high pH and pollution load. Two halotolerant and alkaliphilic bacteria, designated as Halomonas sp. 19-A and Y2, were isolated from wheat straw black liquor and shown to be able to use guaiacol, vanillin, dibenzo-p-dioxin, biphenyl and fluorene, as sole carbon and carbazole as sole carbon and nitrogen source at pH 9.5 and in the presence of 10% NaCl. The two strains produced carboxymethylcellulase (CMCase), xylanase, lipase, amylase, and pullulanase. High activities of CMCase, xylanase, and amylase were observed at pH 5.0-11.0 and NaCl concentrations of 0-15%. The metabolic versatility of these Halomonas strains even under extreme pH and salinity conditions makes them promising agents for bioremediation and industrial processes.
麦草黑液是一种污染负荷很高且 pH 值很高的著名制浆造纸废水。从麦草黑液中分离到两株耐盐耐碱菌，命名为盐单胞菌 19-A 和 Y2，它们能够在 pH 9.5 和 10%NaCl 存在的条件下，以愈创木酚、香草醛、二苯并-p-二恶英、联苯和芴为唯一碳源，咔唑为唯一碳源和氮源。两株菌均能产生羧甲基纤维素酶（CMCase）、木聚糖酶、脂肪酶、淀粉酶和普鲁兰酶。在 pH 5.0-11.0 和 0-15%NaCl 浓度下，CMCase、木聚糖酶和淀粉酶的活性很高。这些盐单胞菌的代谢多功能性甚至在极端 pH 值和盐度条件下，使它们成为生物修复和工业过程的有前途的生物制剂。
