Tolerance and accumulation of hexavalent chromium by two seaweed associated aspergilli.
Marine seaweed (Eucheuma sp.) associated strains of Aspergillus flavus and Aspergillus niger were tested for their Cr(VI) tolerance. Both the isolates showed luxuriant growth in different concentrations of Cr(VI), i.e., 25, 50 and 100 ppm. There was no marked variation in the dry weight of control and test isolates, which indicated that both the isolates can tolerate a wide range of hexavalent chromium and their application for bioremediation purpose can be envisaged as XRF data revealed both the isolates accumulated more than 25% of the chromium supplied. A. flavus invariably exhibited higher accumulation potential.
Vala
Anjana K
AK
Marine Algae and Marine Environment Discipline, Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg., Bhavnagar 364002, India.
Anand
Nisha
N
Bhatt
Purva N
PN
Joshi
H V
HV
D001230:Aspergillus / Q000187:drug effects / Q000378:metabolism*; D002857:Chromium / Q000493:pharmacokinetics* / Q000633:toxicity; D012623:Seawater; D012624:Seaweed; D013052:Spectrometry, X-Ray Emission
D002857:Chromium; C074702:chromium hexavalent ion