摘要
从受甲胺磷长期污染的土壤样品中通过富集培养，亚硝基胍（ＮＴＧ）诱变处理，从中分离筛选到一株降解甲胺磷活性较高的Ｌ４８菌株。该菌株可以利用甲胺磷作为碳源和能源而生长，降解甲胺磷的最适温度为３０℃，最适宜ＰＨ值为７．０，其完整细胞悬液对３０００ｍｇ／Ｌ左右甲胺磷的降解率最高可达８３％。经初步鉴定该菌株为华丽曲霉Ａｓｐｅｒｇｉｌｌｕｓ．ｏｒａｎｔｕｓ。
By using selective media and mutagenesis of Nitrosoguanidine(NTG), a strain of mold L48 was isolated andselected from samples contaminated by methamidophos.The strain was able to utilize methamidophos as the carbon andenergy sources for growth.The optimum temperature and PH for degradation of methamidophos by strain L48 were 30and 7.0, respectively.The biodegradation rate of methamidophos at the concentration about 3000mg/L by intact cell was83%. Strain L48 was identified as Aspergillus.orantus
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
1999年第2期172-175,共4页
China Environmental Science
