Pleiotropic melatonin-mediated responses on growth and cadmium phytoextraction of Brassica napus: A bioecological trial for enhancing phytoremediation of soil cadmium
Article
Menhas, Saiqa, Yang, Xijia, Hayat, Kashif, Bundschuh, Jochen, Chen, Xunfeng, Hui, Nan, Zhang, Dan, Chu, Shaohua, Zhou, Yuanfei, Ali, Esmat F., Shahid, Muhammad, Rinklebe, Jörg, Lee, Sang Soo, Shaheen, Sabry M. and Zhou, Pei. 2023. "Pleiotropic melatonin-mediated responses on growth and cadmium phytoextraction of Brassica napus: A bioecological trial for enhancing phytoremediation of soil cadmium." Journal of Hazardous Materials. 457. https://doi.org/10.1016/j.jhazmat.2023.131862
Article Title | Pleiotropic melatonin-mediated responses on growth and cadmium phytoextraction of Brassica napus: A bioecological trial for enhancing phytoremediation of soil cadmium |
---|---|
ERA Journal ID | 4682 |
Article Category | Article |
Authors | Menhas, Saiqa, Yang, Xijia, Hayat, Kashif, Bundschuh, Jochen, Chen, Xunfeng, Hui, Nan, Zhang, Dan, Chu, Shaohua, Zhou, Yuanfei, Ali, Esmat F., Shahid, Muhammad, Rinklebe, Jörg, Lee, Sang Soo, Shaheen, Sabry M. and Zhou, Pei |
Journal Title | Journal of Hazardous Materials |
Journal Citation | 457 |
Article Number | 131862 |
Number of Pages | 15 |
Year | 2023 |
Publisher | Elsevier |
ISSN | 0304-3894 |
1873-3336 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jhazmat.2023.131862 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0304389423011457 |
Abstract | Melatonin (MT) has recently gained significant scientific interest, though its mechanism of action in enhancing plant vigor, cadmium (Cd) tolerance, and Cd phytoremediation processes are poorly understood. Therefore, here we investigated the beneficial role of MT in improving growth and Cd remediation potential of rapeseed (Brassica napus). Plants, with or without MT (200 µM L−1), were subjected to Cd stress (30 mg kg1). Without MT, higher Cd accumulation (up to 99%) negatively affected plant growth and developmental feature as well as altered expression of several key genes (DEGs) involved in different molecular pathways of B. napus. As compared to only Cd-stressed counterparts, MT-treated plants exhibited better physiological performance as indicated by improved leaf photosynthetic and gaseous exchange processes (3–48%) followed by plant growth (up to 50%), fresh plant biomass (up to 45%), dry plant biomass (up to 32%), and growth tolerance indices (up to 50%) under Cd exposure. MT application enhanced Cd tolerance and phytoremediation capacity of B. napus by augmenting (1) Cd accumulation in plant tissues and its translocation to above-ground parts (by up to 45.0%), (2) Cd distribution in the leaf cell wall (by up to 42%), and (3) Cd detoxification by elevating phytochelatins (by up to 8%) and metallothioneins (by upto 14%) biosynthesis, in comparison to Cd-treated plants. MT played a protective role in stabilizing hydrogen peroxide and malondialdehyde levels in the tissue of the Cd-treated plants by enhancing the content of osmolytes (proline and total soluble protein) and activities of antioxidant enzymes (SOD, CAT, APX and GR). Transcriptomic analysis revealed that MT regulated 1809 differentially expressed genes (828 up and 981 down) together with 297 commonly expressed DEGs (CK vs Cd and Cd vs CdMT groups) involved in plant-pathogen interaction pathway, protein processing in the endoplasmic reticulum pathway, mitogen-activated protein kinase signaling pathway, and plant hormone signal transduction pathway which ultimately promoted plant growth and Cd remediation potential in the Cd-stressed plants. These results provide insights into the unexplored pleiotropic beneficial action of MT in enhancing in the growth and Cd phytoextraction potential of B. napus, paving the way for developing Cd-tolerant oilseed crops with higher remediation capacity as a bioecological trial for enhancing phytoremediation of hazardous toxic metals in the environment. |
Keywords | Bioenergy crops; Heavy metals ; Melatonin; Phytomanagement; Transcriptome analysis |
ANZSRC Field of Research 2020 | 4016. Materials engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Shanghai Jiao Tong University, China |
Ministry of Agriculture and Rural Affairs, China | |
Ministry of Education, China | |
Zhejiang Shuren University, China | |
School of Engineering | |
National Chung Cheng University, Taiwan | |
Taif University, Saudi Arabia | |
COMSATS University Islamabad, Pakistan | |
University of Wuppertal, Germany | |
Yonsei University, Korea | |
King Abdulaziz University, Saudi Arabia | |
University of Kafrelsheikh, Egypt |
Permalink -
https://research.usq.edu.au/item/z2663/pleiotropic-melatonin-mediated-responses-on-growth-and-cadmium-phytoextraction-of-brassica-napus-a-bioecological-trial-for-enhancing-phytoremediation-of-soil-cadmium
37
total views0
total downloads1
views this month0
downloads this month