TY - JOUR
T1 - Endophytes from Phragmites for metal removal
T2 - evaluating their metal tolerance, adaptive tolerance behaviour and biosorption efficacy
AU - Sim, Carrie Siew Fang
AU - Tan, Wei Shang
AU - Ting, Adeline Su Yien
PY - 2016/3
Y1 - 2016/3
N2 - This study determined the potential of fungal endophytes as novel group of biosorbents for metal removal. The endophytic fungi were first isolated from Phragmites, a plant typically used to treat wastewater or leachate, and screened for tolerance and biosorption potential towards various metals. Results revealed that all 21 endophytes demonstrated tolerance to metals tested (Cd2+, Cu2+, Cr3+, Pb2+ and Zn2+), with three isolates (Trichoderma asperellum Iso11, Phomopsis sp. Iso9 and Saccharicola bicolour Iso22) showing the most potential. Of the three, T. asperellum demonstrated better tolerance and adaptive tolerance behaviour to various metals compared to Phomopsis sp. and S. bicolour which were unable to adapt to increasing metal concentrations (up to 2,000 mg L−1). All three isolates showed similar efficacy in removing metals in single-metal solutions. On the contrary, in multi-metal solutions, T. asperellum and S. bicolour showed higher affinity to adsorb Cu2+, followed by Cr3+ and Pb2+, while Phomopsis sp. had affinity towards metals in the following trend: Cu2+ > Pb2+ > Cr3+. This study is the first to document the metal tolerance and sorption efficacy of endophytes from Phragmites.
AB - This study determined the potential of fungal endophytes as novel group of biosorbents for metal removal. The endophytic fungi were first isolated from Phragmites, a plant typically used to treat wastewater or leachate, and screened for tolerance and biosorption potential towards various metals. Results revealed that all 21 endophytes demonstrated tolerance to metals tested (Cd2+, Cu2+, Cr3+, Pb2+ and Zn2+), with three isolates (Trichoderma asperellum Iso11, Phomopsis sp. Iso9 and Saccharicola bicolour Iso22) showing the most potential. Of the three, T. asperellum demonstrated better tolerance and adaptive tolerance behaviour to various metals compared to Phomopsis sp. and S. bicolour which were unable to adapt to increasing metal concentrations (up to 2,000 mg L−1). All three isolates showed similar efficacy in removing metals in single-metal solutions. On the contrary, in multi-metal solutions, T. asperellum and S. bicolour showed higher affinity to adsorb Cu2+, followed by Cr3+ and Pb2+, while Phomopsis sp. had affinity towards metals in the following trend: Cu2+ > Pb2+ > Cr3+. This study is the first to document the metal tolerance and sorption efficacy of endophytes from Phragmites.
KW - Adaptive behaviour
KW - Biosorption
KW - Endophytes
KW - Metal tolerance
KW - Phragmites
UR - http://www.scopus.com/inward/record.url?scp=84923050940&partnerID=8YFLogxK
U2 - 10.1080/19443994.2015.1013507
DO - 10.1080/19443994.2015.1013507
M3 - Article
AN - SCOPUS:84923050940
VL - 57
SP - 6959
EP - 6966
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
SN - 1944-3994
IS - 15
ER -