Toxicity analysis of TNT to alfalfa's mineral nutrition and secondary metabolism

Yang, Xu; Lai, Jin-long; Luo, Xin

doi:10.1007/s00299-022-02856-z

Cited by 3 publications

(2 citation statements)

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“…TNT absorption by plants can disrupt the metabolism of cells (e.g., by altering lipid and mineral metabolism), which has a major effect on the subsequent growth and development of plants (Yang et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

“…TNT pollution has major effects on microbial biomass and community diversity; it also poses a major threat to the health of animals and plants (Nyanhongo et al, 2009; Travis et al, 2008; Travis et al, 2007). TNT absorption by plants can disrupt the metabolism of cells (e.g., by altering lipid and mineral metabolism), which has a major effect on the subsequent growth and development of plants (Yang et al, 2022). Multiple genes involved in TNT metabolism in plants have been identified in previous studies.…”

Section: Discussionmentioning

confidence: 99%

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Overexpressing CYP81D11 enhances 2,4,6‐trinitrotoluene tolerance and removal efficiency in Arabidopsis

Wang,

Su,

Liu

et al. 2024

Physiologia Plantarum

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Phytoremediation is a promising technology for removing the high‐toxic explosive 2,4,6‐trinitrotoluene (TNT) pollutant from the environment. Mining dominant genes is the key research direction of this technology. Most previous studies have focused on the detoxification of TNT rather than plants' TNT tolerance. Here, we conducted a transcriptomic analysis of wild type Arabidopsis plants under TNT stress and found that the Arabidopsis cytochrome P450 gene CYP81D11 was significantly induced in TNT‐treated plants. Under TNT stress, the root length was approximately 1.4 times longer in CYP81D11‐overexpressing transgenic plants than in wild type plants. The half‐removal time for TNT was much shorter in CYP81D11‐overexpressing transgenic plants (1.1 days) than in wild type plants (t1/2 = 2.2 day). In addition, metabolic analysis showed no difference in metabolites in transgenic plants compared to wild type plants. These results suggest that the high TNT uptake rates of CYP81D11‐overexpressing transgenic plants were most likely due to increased tolerance and biomass rather than TNT degradation. However, CYP81D11‐overexpressing plants were not more tolerant to osmotic stresses, such as salt or drought. Taken together, our results indicate that CYP81D11 is a promising target for producing bioengineered plants with high TNT removing capability.

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Section: Discussionmentioning

confidence: 99%