Response mechanism of lettuce (Lactuca sativa L.) under combined stress of Cd and DBDPE: An integrated physiological and metabolomics analysis

Phytotoxicity and plant uptake of decabromodiphenyl ethane under citric acid

“…However, with the increasing of citric acid concentration, the germination rate, germination index and vitality index of tall fescue are signi cantly increased (P < 0.05). It is contrary to the research results of Qiao et al (2023), which shows that there is no signi cant difference in the germination rate, shoot length, root length and fresh weight of lettuce after applying 100 µg•L − 1 of DBDPE compared to the control. This may be due to the lower concentration of DBDPE application, the planting methods are different and the different responses of different plants to DBDPE, which requires further research.…”

“…Chen (2020) studied the effect of DBDPE on white rot fungi, and it found that SOD activity increases with the increasing concentration of DBDPE under short-term (≤ 12 hours) stress. The enzyme activity shows the characteristic of low concentration promoting and high concentration inhibition with DBDPE from 24 ~ 48 hours, after 48 hours, the enzyme activity gradually decreases with the concentration, and the concentration is higher, and the reduction in enzyme activity is larger Qiao et al (2023). studied the phytotoxicity of DBDPE on lettuce, DBDPE signi cantly activates the activities of SOD and POD, but it has no signi cant effect on the CAT activity and MDA content.…”

“…Qiao et al (2023) found that DBDPE can signi cantly inhibit the root activity of lettuce, and there is no signi cant difference in proline content in the aboveground part of lettuce, while the underground part is signi cantly increased, which is consistent with the results of this study Wang et al (2022). conducted proteomic analysis on the differential protein expression in Pleurotus ostreatus in the DBDPE degradation system, and found that during the DBDPE degradation process, the bacterial can secrete a large of proteins to resist the invasion of DBDPE.…”