Journal article
Targeting Cd coping mechanisms for stress tolerance in Brassica napus under spiked-substrate system: from physiology to remediation perspective
International Journal of Phytoremediation , Vol.24(6), pp.622-636
2022
Metrics
9 Record Views
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Abstract
Cadmium (Cd) is a prevalent, non-essential, carcinogenic, and hazardous heavy metal that reduces plant productivity and capacity of arable land area around the globe. In the present substrate-based pot study, seedlings of Brassica napus 180015 were grown equidistantly in the spiked-substrate medium for 60 days under increasing concentrations of Cd (0, 10, 20, 30, 40, 50 mg kg−1). Following harvest, the morpho-physio-biochemical, antioxidative, and Cd-induced tolerance responses were evaluated in B. napus under an increasing Cd stress regime. Additionally, these parameters were also investigated to select the plant's threshold tolerance limit for Cd under the spiked-substrate system. B. napus showed dynamic behavior regarding morpho-physio-biochemical attributes, including agronomic features, biomass, photosynthetic pigments, relative water content under increased Cd toxicity. Cd stress-induced hydrogen peroxide (H2O2) production with high MDA contents and passive EL, followed by the orchestration of both enzymatic (SOD, POD, APX, CAT, and GR) and non-enzymatic antioxidants (flavonoids, TPC, TPA, proline, and total soluble protein) up to a certain limit. In addition, Cd-induced stress upregulated transcriptional levels of antioxidative enzyme SOD, POD, APX, GR, and MT encoded genes in B. napus. The increasing trend of Cd accumulation in different tissues at the highest Cd concentration was as follows: root > leaf > stem. In spiked substrate system, B. napus demonstrated improved metal extractability performance and a high potential for phyto-management of low to moderate Cd contamination, implying that this study could be used for integrative breeding programs and decontaminating heavy metals in real contaminated scenarios. Novelty statement This study provides an insight into Cd-coping mechanisms of oilseed rape involved in alleviating toxicity and simultaneous phyto-management of increasing Cd concentration under spiked substrate system. The current study is the first scientific evidence of using a Cd-spiked soilless substrate medium. The present study will further strengthen our understanding of Cd-instigated positive responses in B. napus. Furthermore, it will provide a useful basis for integrative breeding programs and decontaminating heavy metals in real contaminated scenarios.
Details
- Title
- Targeting Cd coping mechanisms for stress tolerance in Brassica napus under spiked-substrate system: from physiology to remediation perspective
- Creators
- Saiqa Menhas - Shanghai Jiao Tong UniversityXijia Yang - Shanghai Jiao Tong UniversityKashif Hayat - Shanghai Jiao Tong UniversityNabeel Khan Niazi - University of Agriculture FaisalabadSikandar Hayat - Nanjing Forestry UniversityAmna - Quaid-i-Azam UniversityTariq Aftab - Aligarh Muslim UniversityNan Hui - Shanghai Jiao Tong UniversityJuncai Wang - Shanghai Jiao Tong UniversityXunfeng Chen - Shanghai Jiao Tong UniversityPei Zhou - Shanghai Jiao Tong University
- Publication Details
- International Journal of Phytoremediation , Vol.24(6), pp.622-636
- Publisher
- Taylor & Francis
- Grant note
- This work was supported by Shanghai Agriculture Applied Technology Development Program, China [Grant No. T20180413], National Key Research and Development Program of China [Grant No.2016YFD0800807], Shanghai Science and Technology Innovation Action Project [Grant No. 20392001000, 20dz1204804] and Project of Key Laboratory of Urban Agriculture in North China in 2020 [Grant No. KF2020012].
- Identifiers
- 991013154190702368
- Copyright
- (c) 2021 Taylor & Francis Group, LLC.
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article