Effects of Silicon and Iron Application on Arsenic Absorption and Physiological Characteristics of Rice (Oryza sativa L.)

Ze-hui, Yang; Chen, Zexiao; He, Na; Yang, Dan; Liu, Mingda

doi:10.1007/s00128-022-03476-9

Cited by 5 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Inhibitory effects of As on plant growth parameters were observed in various studies [55][56][57]. In the present study, As stress negatively affected the growth and biomass of radish plants.…”

Section: Discussionsupporting

confidence: 54%

Silicon and Nitric Oxide-Mediated Regulation of Growth Attributes, Metabolites and Antioxidant Defense System of Radish ( L.) under Arsenic Stress

Bhardwaj¹,

Verma²,

Raza³

et al. 2023

Phyton

View full text Add to dashboard Cite

Arsenic (As) contaminated food chains have emerged as a serious public concern for humans and animals and are known to affect the cultivation of edible crops throughout the world. Therefore, the present study was designed to investigate the individual as well as the combined effects of exogenous silicon (Si) and sodium nitroprusside (SNP), a nitric oxide (NO) donor, on plant growth, metabolites, and antioxidant defense systems of radish (Raphanus sativus L.) plants under three different concentrations of As stress, i.e., 0.3, 0.5, and 0.7 mM in a pot experiment. The results showed that As stress reduced the growth parameters of radish plants by increasing the level of oxidative stress markers, i.e., malondialdehyde and hydrogen peroxide. However, foliar application of Si (2 mM) and pretreatment with SNP (100 µM) alone as well as in combination with Si improved the plant growth parameters, i.e., root length, fresh and dry weight of plants under As stress. Furthermore, As stress also reduced protein, and metabolites contents (flavonoids, phenolic and anthocyanin). Activities of antioxidative enzymes such as catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (POD), and polyphenol oxidase (PPO), as well as the content of non-enzymatic antioxidants (glutathione and ascorbic acid) decreased under As stress. In most of the parameters in radish, As III concentration showed maximum reduction, as compared to As I and II concentrations. However, the individual and combined application of Si and NO significantly alleviated the As-mediated oxidative stress in radish plants by increasing the protein, and metabolites content. Enhancement in the activities of CAT, APX, POD and PPO enzymes were recorded. Contents of glutathione and ascorbic acid were also enhanced in response to co-application of Si and NO under As stress. Results obtained were more pronounced when Si and NO were applied in combination under As stress, as compared to their individual application. In short, the current study highlights that Si and NO synergistically regulate plant growth through lowering the As-mediated oxidative stress by upregulating the metabolites content, activity of antioxidative enzymes and non-enzymatic antioxidants in radish plants.

show abstract

Section: Discussionsupporting

confidence: 54%

Silicon and Nitric Oxide-Mediated Regulation of Growth Attributes, Metabolites and Antioxidant Defense System of Radish ( L.) under Arsenic Stress

Bhardwaj¹,

Verma²,

Raza³

et al. 2023

Phyton

View full text Add to dashboard Cite

show abstract

“…One of the most prominent symptoms in plant is interveinal chlorosis, or veins yellowing, which leads to a reduced photosynthetic performance of fruit trees ( Curie and Briat, 2003 ; Hao et al., 2022 ). About 80% of the total iron was stored in chloroplasts; although iron is not a component of chlorophyll, it is an indispensable catalyst for chlorophyll synthesis ( Yang et al., 2022 ). Previous studies have shown that the number of thylakoid membranes decreased in the lamellar structure of the chloroplast under iron deficiency ( TerBush et al., 2013 ).…”

Section: Introductionmentioning

confidence: 99%

MbHY5-MbYSL7 mediates chlorophyll synthesis and iron transport under iron deficiency in Malus baccata

Sun

Luo²,

Feng³

et al. 2022

Front. Plant Sci.

View full text Add to dashboard Cite

Iron (Fe) plays an important role in cellular respiration and catalytic reactions of metalloproteins in plants and animals. Plants maintain iron homeostasis through absorption, translocation, storage, and compartmentalization of iron via a cooperative regulative network. Here, we showed different physiological characteristics in the leaves and roots of Malus baccata under Fe sufficiency and Fe deficiency conditions and propose that MbHY5 (elongated hypocotyl 5), an important transcription factor for its function in photomorphogenesis, participated in Fe deficiency response in both the leaves and roots of M. baccata. The gene co-expression network showed that MbHY5 was involved in the regulation of chlorophyll synthesis and Fe transport pathway under Fe-limiting conditions. Specifically, we found that Fe deficiency induced the expression of MbYSL7 in root, which was positively regulated by MbHY5. Overexpressing or silencing MbYSL7 influenced the expression of MbHY5 in M. baccata.

show abstract

Silicon Alleviates the Stress of 1,2,4-Trichlorobenzene on Rice Seedlings

Yan

Zhang

Liu

et al. 2023

Silicon

View full text Add to dashboard Cite

Effects of Silicon and Iron Application on Arsenic Absorption and Physiological Characteristics of Rice (Oryza sativa L.)

Cited by 5 publications

References 42 publications

Silicon and Nitric Oxide-Mediated Regulation of Growth Attributes, Metabolites and Antioxidant Defense System of Radish ( L.) under Arsenic Stress

Silicon and Nitric Oxide-Mediated Regulation of Growth Attributes, Metabolites and Antioxidant Defense System of Radish ( L.) under Arsenic Stress

MbHY5-MbYSL7 mediates chlorophyll synthesis and iron transport under iron deficiency in Malus baccata

Silicon Alleviates the Stress of 1,2,4-Trichlorobenzene on Rice Seedlings

Contact Info

Product

Resources

About