Effect of Pb-Polluted Soil on Soybean Growth and Associated Toxicological Risk

Blanco, Andrés; Rodriguez, Judith Hebelen

doi:10.1007/s00128-021-03402-5

Cited by 1 publication

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previously, there were limited reports on other sources of NO donors such as SNP to mitigate heavy metal toxicity [ 11 , 13 , 14 ]. It has been well reported that lead stress negatively affects plant growth and biomass [ 5 ]. We also obtained a similar result, i.e., Pb stress decreased the biomass of soybean; however, NO decreased Pb toxicity in plants ( Supplementary Figure S1 ).…”

Section: Discussionmentioning

confidence: 99%

“…Pb is non-biodegradable and can move from soil into water and eventually enter crops. Furthermore, excessive lead can cause serious damage and pose a threat to crop growth [ 3 , 4 , 5 ]. Notably, Pb can adversely affect plant growth and development by reducing nutrient uptake and severely affecting photosystems, nitrogen metabolism, cell membrane integrity, chlorosis, and necrosis.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

S-Nitrosoglutathione (GSNO)-Mediated Lead Detoxification in Soybean through the Regulation of ROS and Metal-Related Transcripts

Methela

Islam

Lee

et al. 2023

IJMS

View full text Add to dashboard Cite

Heavy metal toxicity, including lead (Pb) toxicity, is increasing in soils, and heavy metals are considered to be toxic in small amounts. Pb contamination is mainly caused by industrialization (e.g., smelting and mining), agricultural practices (e.g., sewage sludge and pests), and urban practices (e.g., lead paint). An excessive concentration of Pb can seriously damage and threaten crop growth. Furthermore, Pb adversely affects plant growth and development by affecting the photosystem, cell membrane integrity, and excessive production of reactive oxygen species (ROS) such as hydrogen peroxide (H2O2) and superoxide (O2−). Nitric oxide (NO) is produced via enzymatic and non-enzymatic antioxidants to scavenge ROS and lipid peroxidation substrates to protect cells from oxidative damage. Thus, NO improves ion homeostasis and confers resistance to metal stress. In the present study, we investigated the effect of exogenously applied NO and S-nitrosoglutathione in soybean plants Our results demonstrated that exogenously applied NO aids in better growth under lead stress due to its ability in sensing, signaling, and stress tolerance in plants under heavy metal stress along with lead stress. In addition, our results showed that S-nitrosoglutathione (GSNO) has a positive effect on soybean seedling growth under lead-induced toxicity and that NO supplementation helps to reduce chlorophyll maturation and relative water content in leaves and roots following strong bursts under lead stress. GSNO supplementation (200 µM and 100 µM) reduced compaction and approximated the oxidative damage of MDA, proline, and H2O2. Moreover, under plant stress, GSNO application was found to relieve the oxidative damage by reactive oxygen species (ROS) scavenging. Additionally, modulation of NO and phytochelatins (PCS) after prolonged metal reversing GSNO application confirmed detoxification of ROS induced by the toxic metal lead in soybean. In summary, the detoxification of ROS caused by toxic metal concentrations in soybean is confirmed by using NO, PCS, and traditionally sustained concentrations of metal reversing GSNO application.

show abstract