TY - JOUR
T1 - Effect of endophytic fungi on cadmium tolerance and bioaccumulation by Festuca arundinacea and Festuca pratensis
AU - Soleimani, Mohsen
AU - Hajabbasi, Mohammad A.
AU - Afyuni, Majid
AU - Mirlohi, Aghafakhr
AU - Borggaard, Ole K.
AU - Holm, Peter Engelund
PY - 2010
Y1 - 2010
N2 - Endophytic fungi are a group of fungi that live asymptomatically inside plant tissue. These fungi may increase host plant tolerance to biotic and abiotic stresses. The effect of Neotyphodium endophytes in two grass species (Festuca arundinacea and Festuca pratensis) on cadmium (Cd) tolerance, accumulation and translocation has been our main objective. The plants were grown in a hydroponic system under different Cd concentrations (0, 5, 10, and 20 mg L-1) for 6 weeks. They were also grown in soil spiked with different concentrations of Cd (0,10,20, and 40 mg kg-1) for 2 months. The results from all Cd treatments showed higher biomass production (12-24%) and higher potential to accumulate Cd in roots (6-16%) and shoots (6-20%) of endophyte-infected plants than endophyte-free plants. Cadmium accumulation by plants indicated that the grasses were capable of Cd hyperaccumulation, a property that was augmented after endophyte infection. Maximum photochemical efficiency of photosystem II (Fv/Fm) revealed that Cd stress was significantly reduced in endophyte-infected plants compared to non-infected ones.
AB - Endophytic fungi are a group of fungi that live asymptomatically inside plant tissue. These fungi may increase host plant tolerance to biotic and abiotic stresses. The effect of Neotyphodium endophytes in two grass species (Festuca arundinacea and Festuca pratensis) on cadmium (Cd) tolerance, accumulation and translocation has been our main objective. The plants were grown in a hydroponic system under different Cd concentrations (0, 5, 10, and 20 mg L-1) for 6 weeks. They were also grown in soil spiked with different concentrations of Cd (0,10,20, and 40 mg kg-1) for 2 months. The results from all Cd treatments showed higher biomass production (12-24%) and higher potential to accumulate Cd in roots (6-16%) and shoots (6-20%) of endophyte-infected plants than endophyte-free plants. Cadmium accumulation by plants indicated that the grasses were capable of Cd hyperaccumulation, a property that was augmented after endophyte infection. Maximum photochemical efficiency of photosystem II (Fv/Fm) revealed that Cd stress was significantly reduced in endophyte-infected plants compared to non-infected ones.
U2 - 10.1080/15226510903353187
DO - 10.1080/15226510903353187
M3 - Journal article
C2 - 21166279
SN - 1522-6514
VL - 12
SP - 535
EP - 549
JO - International Journal of Phytoremediation
JF - International Journal of Phytoremediation
IS - 6
ER -