Physiological and molecular mechanisms of medicinal plants in response to cadmium stress: Current status and future perspective

Fan, Panhui; Wu, Liwei; Wang, Qing; Wang, Yu; Luo, Hongmei; Song, Jingyuan; Yang, Meihua; Yao, Hui; Chen, Shilin

doi:10.1016/j.jhazmat.2023.131008

Cited by 58 publications

(24 citation statements)

References 170 publications

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“…Uma vez absorvidos pelas células, os metais tóxicos são transcolados a curta e a longa distância sendo acumulados em diferentes órgãos das plantas, especialmente na parte aérea (folhas e frutos) (LI et al, 2023). Em frutos, por exemplo, o acúmulo dos metais tóxicos pode trazer riscos à saúde humana tendo em vista a sua ingestão, além disso ao serem inseridos no ambiente estes metais passam a participar da cadeia trófica de modo a causar prejuízos a longo prazo (KAPOOR et al, 2021;FAN et al, 2023), conforme efeitos apresentados na Tabela 1.…”

Section: Desenvolvimento Plantas E Metais Tóxicos: Absorção Transloca...unclassified

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Tecnologia e Inovação na Agricultura: aplicação, produtividade e sustentabilidade em pesquisa - Volume 2

2023

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Esta obra constituiu-se a partir de um processo colaborativo entre professores, estudantes e pesquisadores que se destacaram e qualificaram as discussões neste espaço formativo. Resulta, também, de movimentos interinstitucionais e de ações de incentivo à pesquisa que congregam pesquisadores das mais diversas áreas do conhecimento e de diferentes Instituições de Educação Superior públicas e privadas de abrangência nacional e internacional. Tem como objetivo integrar ações interinstitucionais nacionais e internacionais com redes de pesquisa que tenham a finalidade de fomentar a formação continuada dos profissionais da educação, por meio da produção e socialização de conhecimentos das diversas áreas do Saberes. Agradecemos aos autores pelo empenho, disponibilidade e dedicação para o desenvolvimento e conclusão dessa obra. Esperamos também que esta obra sirva de instrumento didático-pedagógico para estudantes, professores dos diversos níveis de ensino em seus trabalhos e demais interessados pela temática.

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Section: Desenvolvimento Plantas E Metais Tóxicos: Absorção Transloca...unclassified

“…Redução da parte aérea e comprimento da raíz (altura da planta), área foliar e número de folhas, com acúmulo de metal nos tecidos. Li et al, 2023;Fan et al, 2023;Kapoor et al, 2021.…”

Section: Metal Tóxico Forma De Absorção Efeitos Na Planta Referênciasunclassified

Tecnologia e Inovação na Agricultura: aplicação, produtividade e sustentabilidade em pesquisa - Volume 2

2023

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“… 4 , 5 Plants exposed to Cd have a number of abnormalities, including stunted development, chlorosis of the leaf, and disruption of several critical biological processes including photosynthesis, water balance, mineral absorption, defense enzymes, membrane stability, gene expression and DNA structure. 6 Cadmium in the growing media enters through the roots and excessive reactive oxygen species (ROS) burst happens when it enters at an excessive rate. Numerous key cellular elements like lipids, proteins, and DNA are severely harmed by the excessive ROS that are the main drivers of the oxidative stress induced by Cd stress.…”

Section: Introductionmentioning

confidence: 99%

“… 8 These protective mechanisms work in harmony to shield the plant from oxidative stress that can harm cells and interfere with normal physiological functions. 9 Therefore, the regulation of antioxidant activity determines how long plants can survive and at what HMs concentration. 10 Stock cut flower crop was chosen for the current investigation because it does not consistently use this strategy.…”

Section: Introductionmentioning

confidence: 99%

Synergistic interplay between melatonin and hydrogen sulfide enhances cadmium-induced oxidative stress resistance in stock ( Matthiola incana L.)

Zulfiqar,

Moosa,

Ali

et al. 2024

Plant Signaling & Behavior

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Ornamental crops particularly cut flowers are considered sensitive to heavy metals (HMs) induced oxidative stress condition. Melatonin (MLT) is a versatile phytohormone with the ability to mitigate abiotic stresses induced oxidative stress in plants. Similarly, signaling molecules such as hydrogen sulfide (H 2 S) have emerged as potential options for resolving HMs related problems in plants. The mechanisms underlying the combined application of MLT and H 2 S are not yet explored. Therefore, we evaluated the ability of individual and combined applications of MLT (100 μM) and H 2 S in the form of sodium hydrosulfide (NaHS), a donor of H 2 S, (1.5 mM) to alleviate cadmium (Cd) stress (50 mg L −1 ) in stock ( Matthiola incana L.) plants by measuring various morpho-physiological and biochemical characteristics. The results depicted that Cd-stress inhibited growth, photosynthesis and induced Cd-associated oxidative stress as depicted by excessive ROS accumulation. Combined application of MLT and H 2 S efficiently recovered all these attributes. Furthermore, Cd stress-induced oxidative stress markers including electrolyte leakage, malondialdehyde, and hydrogen peroxide are partially reversed in Cd-stressed plants by MLT and H 2 S application. This might be attributed to MLT or H 2 S induced antioxidant plant defense activities, which effectively reduce the severity of oxidative stress indicators. Overall, MLT and H 2 S supplementation, favorably regulated Cd tolerance in stock; yet, the combined use had a greater effect on Cd tolerance than the independent application.

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“…Under conditions of extremely low concentrations of Cd stress, plants may also exhibit hazardous consequences. For instance, Cd stress can cause yellowing of plant root tips, root shrinkage, and dwarfing of seedlings, thereby impeding overall plant development and causing a notable decline in the yield of medicinal plants ( Fan et al., 2023 ). The occurrence of Cd toxicity in plants is commonly linked to the interference of diverse metabolic processes involving the absorption and distribution of water and nutrients, photosynthesis, and redox reactions ( Zhang et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Identification and characterization of the critical genes encoding Cd-induced enhancement of SOD isozymes activities in Zhe-Maidong (Ophiopogon japonicus)

Hou,

Wang,

Zhu

et al. 2024

Front. Plant Sci.

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Superoxide dismutase (SOD) protects plants from abiotic stress-induced reactive oxygen species (ROS) damage. Here, the effects of cadmium (Cd) exposure on ROS accumulation and SOD isozymes, as well as the identification of significant SOD isozyme genes, were investigated under different Cd stress treatments to Zhe-Maidong (Ophiopogon japonicus). The exposure to Cd stress resulted in a notable elevation in the SOD activity in roots. Cu/ZnSODa and Cu/ZnSODb were the most critical SOD isozymes in response to Cd stress, as indicated by the detection results for SOD isozymes. A total of 22 OjSOD genes were identified and classified into three subgroups, including 10 OjCu/ZnSODs, 6 OjMnSODs, and 6 OjFeSODs, based on the analysis of conserved motif and phylogenetic tree. Cu/ZnSOD-15, Cu/ZnSOD-18, Cu/ZnSOD-20, and Cu/ZnSOD-22 were the main genes that control the increase in SOD activity under Cd stress, as revealed via quantitative PCR and transcriptome analysis. Additionally, under various heavy metal stress (Cu2+, Fe2+, Zn2+, Mn2+), Cu/ZnSOD-15, Cu/ZnSOD-18, and Cu/ZnSOD-22 gene expression were significantly upregulated, indicating that these three genes play a critical part in resisting heavy metal stress. The molecular docking experiments performed on the interaction between oxygen ion (O2•−) and OjSOD protein have revealed that the critical amino acid residues involved in the binding of Cu/ZnSOD-22 to the substrate were Pro135, Ile136, Ile140, and Arg144. Our findings provide a solid foundation for additional functional investigations on the OjSOD genes, as well as suggestions for improving genetic breeding and agricultural management strategies to increase Cd resistance in O. japonicus.

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Physiological and molecular mechanisms of medicinal plants in response to cadmium stress: Current status and future perspective

Cited by 58 publications

References 170 publications

Tecnologia e Inovação na Agricultura: aplicação, produtividade e sustentabilidade em pesquisa - Volume 2

Tecnologia e Inovação na Agricultura: aplicação, produtividade e sustentabilidade em pesquisa - Volume 2

Synergistic interplay between melatonin and hydrogen sulfide enhances cadmium-induced oxidative stress resistance in stock ( Matthiola incana L.)

Identification and characterization of the critical genes encoding Cd-induced enhancement of SOD isozymes activities in Zhe-Maidong (Ophiopogon japonicus)

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