AI Article Synopsis
- Endophytic fungi live inside plant tissues without causing harm, and they can help plants cope with stress from pollutants and environmental factors.
- In a study, two grass species were tested for their ability to tolerate and accumulate cadmium (Cd) when infected with Neotyphodium endophytes.
- Results showed that endophyte-infected plants had increased biomass and were more effective at accumulating Cd in their roots and shoots, while also reducing stress effects on their photosynthetic efficiency.
Article Abstract
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.
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| http://dx.doi.org/10.1080/15226510903353187 | DOI Listing |
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