Arsenate phytotoxicity regulation by humic acid and related metabolic mechanisms

Wang, Qi; Wen, Jingyu; Zheng, Jinxin; Zhao, Jiaqi; Qiu, Chunsheng; Xiao, Di; Liu, Xiaowei

doi:10.1016/j.ecoenv.2020.111379

Cited by 29 publications

(5 citation statements)

References 51 publications

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“…However, in these studies, the same trend was observed in roots of S. oleracea as was found in our S. oleracea plants, showing a higher As content in the roots compared to shoots, which increased with increasing As levels in growth medium or soil. In our study, the low As content in S. oleracea shoots could be due to their ability to restrict the entry of As into vascular bundles or As chelation and storage in the vacuoles [ 41 ].…”

Section: Discussionmentioning

confidence: 99%

“…This element is the activator of metalloenzymes and plays key roles in various plant physiological and biochemical processes [ 54 ]. Both antagonistic and synergistic interactions of As and Mg were observed among different non-As-hyperaccumulating and As-hyperaccumulating plants [ 25 , 37 , 41 , 45 , 46 , 47 , 48 ]. In our study, As affected Mg content differently between both plant species.…”

Section: Discussionmentioning

confidence: 99%

“…In our study, despite the decrease of Phe with As100 treatment in both plant species, Phe content was higher in P. cretica shoots, which suggests a higher tolerance of this As-hyperaccumulating fern. Downregulation of Phe may directly reduce the biosynthesis of caffeic aldehyde, which plays an important role in the formation of plant lignin and can scavenge excess H 2 O 2 [ 41 ].…”

Section: Discussionmentioning

confidence: 99%

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Arsenic Toxicity-Induced Physiological and Metabolic Changes in the Shoots of Pteris cretica and Spinacia oleracea

Zemanová

Pavlı́ková

Hnilička

et al. 2021

Plants

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Arsenic is a ubiquitous toxic element that can be accumulated into plant parts. The present study investigated the response of Pteris cretica and Spinacia oleracea to As treatment through the analysis of selected physiological and metabolic parameters. Plants were grown in pots in As(V) spiked soil (20 and 100 mg/kg). Plants’ physiological condition was estimated through the determination of elements, gas-exchange parameters, chlorophyll fluorescence, water potential, photosynthetic pigments, and free amino acid content. The results confirmed differing As accumulation in plants, as well as in shoots and roots, which indicated that P. cretica is an As-hyperaccumulator and that S. oleracea is an As-root excluder. Variations in physiological and metabolic parameters were observed among As treatments. Overall, the results revealed a significant effect of 100 mg/kg As treatment on the analysed parameters. In both plants, this treatment affected growth, N, Mg, S, Mn, and Zn content, as well as net photosynthetic rate, chlorophyll fluorescence, and total free amino acid content. In conclusion, the results reflect the similarity between P. cretica and S. oleracea in some aspects of plants’ response to As treatment, while physiological and metabolic parameter changes related to As treatments indicate the higher sensitivity of S. oleracea.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Arsenic Toxicity-Induced Physiological and Metabolic Changes in the Shoots of Pteris cretica and Spinacia oleracea

Zemanová

Pavlı́ková

Hnilička

et al. 2021

Plants

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“…As toxicity causes a decrease in the synthesis of photosynthetic pigments, distortion of the chloroplast, and reduction of photosystem II (PSII) and photosystem I (PSI) activities 24 . In relation to As stress, a decrease in plant dry weight is due to the toxic As effect on various growth related such as a reduction in the biosynthesis of photosynthetic pigments and a decrease in water and nutrient content 25 . As can affect photosynthetic pigments, the membrane system of chloroplasts, and chlorophyll uorescence, thus reducing photosynthetic activity 26 .…”

Section: Discussionmentioning

confidence: 99%

Growth, antioxidant enzyme activities and some physiological properties of lemon balm (Mellissa officinallis L.) in response to arsenic and cadmium stress

Mohammadi,

Heidari,

Firoozabadi

et al. 2023

Preprint

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Arsenic (As) and cadmium (Cd) are nonessential elements, toxicants and inhibit various physiological and biochemical processes in plants. The aim of this experiment was to investigate the effect of four concentrations of sodium arsenate (NaH2As4O. 7H2O): As1 = 0, As2 = 10, As3 = 20, and As4 = 30 mg As kg− 1 soil and cadmium sulfate (CdSO4): Cd1 = 0, Cd2 = 10, Cd3 = 20 and Cd4 = 30 mg Cd kg− 1 in soil on root and shoot growth, nutrient uptake and activity of some antioxidant enzymes in lemon balm plant. By increasing Cd and As concentration from 0 to 30 mg kg− 1 in soil, the dry weight of aerial part 50.7% decreased. This reduction for dry weight of roots in Cd treatment was 18.5%, and in As treatment was 32.01%. Cd and As decreased the concentration of chlorophyll “a” and carotenoid and increased the concentration of anthocyanin (77.6%) in the leaves. The activity of antioxidant enzymes such as catalase (CAT): 49.4% and superoxide dismutase (SOD): 49.6% increased. Cd and As also decreased the concentration of nitrogen, phosphorus and potassium in leaves of lemon balm plant. The concentration of Cd in the root reaches from 2.72 to 53.3 µg g dry weight) an increase of about 19.5 times). And in the aerial part it was an increase of about 1.5 times. The concentration of As in the root reached from 1.52 to 27.3 µg g dry weight (an increase of 17.9 times) and in the aerial part it was 15.1 times. Due to the transfer a large amount of As compared to Cd to the aerial part, It can be concluded that the effect of As on this plant was greater than that of Cd.

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“…49 Moreover, the difference of aminoacyl-tRNA biosynthesis may indicate that HdN could mitigate combined heat-drought stress by regulating the translation process. 50…”

Section: †)mentioning

confidence: 99%

Interpretable machine learning-accelerated seed treatment using nanomaterials for environmental stress alleviation

Luo

et al. 2023

Nanoscale

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Arsenate phytotoxicity regulation by humic acid and related metabolic mechanisms

Cited by 29 publications

References 51 publications

Arsenic Toxicity-Induced Physiological and Metabolic Changes in the Shoots of Pteris cretica and Spinacia oleracea

Arsenic Toxicity-Induced Physiological and Metabolic Changes in the Shoots of Pteris cretica and Spinacia oleracea

Growth, antioxidant enzyme activities and some physiological properties of lemon balm (Mellissa officinallis L.) in response to arsenic and cadmium stress

Interpretable machine learning-accelerated seed treatment using nanomaterials for environmental stress alleviation

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