|Table of Contents|

Screening Strains Resistant of Lead and Cadmium and Growth Conditions Optimization(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年24
Page:
65-71
Research Field:
Publishing date:

Info

Title:
Screening Strains Resistant of Lead and Cadmium and Growth Conditions Optimization
Author(s):
JIN ZhongminZHAO JingtongWEN YuchenNIE WenjunLIU Lijie
College of Life Science and Agriculture and Forestry,Qiqihar University,Qiqihar,Heilongjiang 161006
Keywords:
Pb2+/Cd2+ resistant strainisolation and identificationbiological characteristics
PACS:
-
DOI:
10.11937/bfyy.20171122
Abstract:
This experiment is based on the soil of Zalong wetland in Heilongjiang Province,using the method of state characteristic observation,physiological and biochemical characteristics and the development analysis of 16S rDNA sequence systems,the effects of temperature,heavy metal concentration,NaCl concentration,pH,antibiotic type and oxygen on the growth of strain were studied,in order to provide reference for the use of lead-resistant and cadmium strains to control heavy metal pollution.The results showed that a strain resistant to heavy metals was screened and initially identified as Burkholderia sp,the optimum temperature was 30 ℃ and the optimum pH was 7.It could be grown on medium with salt content <6%.With the increase of NaCl concentration,the growth of the strain was inhibited.The strain might belong to aerobic bacteria.For other heavy metals,in the low concentration of Cu2+ containing medium growth,high concentration inhibition,not resistant to Cr6+.The strain could grow in an environment containing different concentrations of antibiotics,high concentrations were inhibited when grew.

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Last Update: 2017-12-28