Exogenous IAA Alleviates Arsenic Toxicity to Rice and Reduces Arsenic Accumulation in Rice Grains

He, Yue Ping; Zhang, Ting; Sun, Yu; Wang, Xuejing; Cao, Qingqing; Fang, Zhigang; Chang, Ming; Cai, Qingsheng; Lou, Laiqing

doi:10.1007/s00344-021-10336-z

Cited by 30 publications

(13 citation statements)

References 37 publications

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“…According to Molassiotis et al (2010) , IAA and other plant hormones can move from salt-treated roots to leaves to induce NO synthesis, trigger NO transport throughout the plant, and generate defense responses following salt stress. He et al (2022) revealed that 20 mg L –1 exogenous IAA application significantly increased rice ( Oryza sativa ) growth and reduced As accumulation in grain. In another study, IAA and Si-NPs alleviated Cr-IV stress in rice seedlings; Cr-IV increased ROS levels, whereas IAA and Si-NPs detoxified ROS to enhance plant tolerance and defense mechanisms ( Sharma et al, 2022b ).…”

Section: Interplay Of Plant Hormones In Conferring Abiotic-induced Ox...mentioning

confidence: 99%

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

et al. 2022

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Due to global climate change, abiotic stresses are affecting plant growth, productivity, and the quality of cultivated crops. Stressful conditions disrupt physiological activities and suppress defensive mechanisms, resulting in stress-sensitive plants. Consequently, plants implement various endogenous strategies, including plant hormone biosynthesis (e.g., abscisic acid, jasmonic acid, salicylic acid, brassinosteroids, indole-3-acetic acid, cytokinins, ethylene, gibberellic acid, and strigolactones) to withstand stress conditions. Combined or single abiotic stress disrupts the normal transportation of solutes, causes electron leakage, and triggers reactive oxygen species (ROS) production, creating oxidative stress in plants. Several enzymatic and non-enzymatic defense systems marshal a plant’s antioxidant defenses. While stress responses and the protective role of the antioxidant defense system have been well-documented in recent investigations, the interrelationships among plant hormones, plant neurotransmitters (NTs, such as serotonin, melatonin, dopamine, acetylcholine, and γ-aminobutyric acid), and antioxidant defenses are not well explained. Thus, this review discusses recent advances in plant hormones, transgenic and metabolic developments, and the potential interaction of plant hormones with NTs in plant stress response and tolerance mechanisms. Furthermore, we discuss current challenges and future directions (transgenic breeding and genome editing) for metabolic improvement in plants using modern molecular tools. The interaction of plant hormones and NTs involved in regulating antioxidant defense systems, molecular hormone networks, and abiotic-induced oxidative stress tolerance in plants are also discussed.

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Section: Interplay Of Plant Hormones In Conferring Abiotic-induced Ox...mentioning

confidence: 99%

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

et al. 2022

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“…For example, exogenous application of indole-3-acetic acid and salicylic increased the relative dry weight, relative shoot length, and relative root elongation in rice grown in soil contaminated with arsenic at 28.7 ± 1.52 mg/kg (He et al 2021). Exogenous application of calcium chloride also increased rice growth by restoration of chlorophyll damage, enhancing the dry weight and antioxidant system in rice seedlings after exposure to 0.5 and 1 mM of disodium arsenate (Na 2 HAsO 4 ) (Rahman et al, 2015).…”

Section: F-testmentioning

confidence: 99%

“…Decreasing metal toxicity to plants is important to improve the phytostabilization process, especially for mine waste remediation (Zine et al, 2020). In the case of arsenic contamination, the application of exogenous plant growth regulators, including salicylic acid, auxin, and calcium, is one way to improve plant growth by alleviating arsenic toxicity in plants grown under arsenic stress (He et al, 2021;Maghsoudi et al, 2020;R. Singh et al, 2018R.…”

Section: Introductionmentioning

confidence: 99%

“…The salicylic acid application can enhance antioxidant enzymes and decrease arsenic accumulation in the plant (Maghsoudi et al, 2020). Exogenous auxin also mitigates arsenic toxicity in the plant by decreasing the arsenic translocation from the root to the shoot and promotes plant growth by increasing plant biomass, relative root length, relative root fresh weight, relative root length (He et al, 2021), and other negative impacts from arsenic toxicity (Piacentini et al, 2020). Meanwhile, calcium can act as a secondary messenger and control signal transduction in plants grown under stress and non-stress conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, this plant can grow in several soil types and weather conditions, it is resistant to many pests, and its biomass is used for animal feed and as a substrate for bioethanol production (Ishii et al, 2015). These plant growth regulators have been reported to decrease arsenic accumulation in plants in the Poaceae family, such as rice and wheat (He et al, 2021;Maghsoudi et al, 2020). Suppose these three plant growth regulators could increase arsenic phytostabilization of P. purpureum cv.…”

Section: Introductionmentioning

confidence: 99%

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Potential of Plant Growth Regulators to Enhance Arsenic Phytostabilization by Pennisetum purpureum cv. Mott

Chouychai¹,

Somtrakoon²

2022

JTAS

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The limited translocation of arsenic from contaminated soil to plant biomass is one way to decrease human exposure to arsenic (As). Plant growth regulators (PGR), including salicylic acid, indole butyric acid, and calcium, have been reported to alleviate toxicity and decrease the accumulation of heavy metals in many plants. Thus, this study has investigated the effect of plant growth regulators, including salicylic acid, salicylic acid + calcium chloride, indole butyric acid, and indole butyric acid + calcium chloride, to stimulate the growth and phytostabilization of Pennisetum purpureum cv. Mott grew in arsenic-spiked soil. The results showed shoot growth, root growth, and total chlorophyll content of P. purpureum cv. Mott grown in non-spiked soil were not significantly different from those grown in arsenic-spiked soil. Only the root-to-shoot ratio of plants grown under arsenic-spiked soil (0.28) was higher than that of non-spiked soil (0.19). Exogenous plant growth regulator application of each formula did not stimulate the growth of plants grown under both soil conditions. The most suitable plant growth regulator was indole butyric acid + calcium chloride, as the highest arsenic accumulation in plant roots was detected (47.38 mg/kg). It corresponds with the arsenic bioaccumulation factor, translocation factor, and efficiency, which were 4.52, 0.06, and 9.77% when using exogenously indole butyric acid + calcium chloride. Meanwhile, arsenic’s translocation factor and efficiency were low when using the other formulae of plant growth regulators. Thus, 0.001 mM indole butyric acid + 20 mM calcium chloride may be used for the cultivation of P. purpureum cv. Mott as a forage crop in areas with low levels of arsenic contamination because it could limit the amount of arsenic entering the food chain.

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Hormonal Regulation of Heavy Metal Toxicity and Tolerance in Crop Plants

Kido,

de Andrade Luz,

da Silva

et al. 2023

Heavy Metal Toxicity and Tolerance in Plants

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Exogenous IAA Alleviates Arsenic Toxicity to Rice and Reduces Arsenic Accumulation in Rice Grains

Cited by 30 publications

References 37 publications

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

Potential of Plant Growth Regulators to Enhance Arsenic Phytostabilization by Pennisetum purpureum cv. Mott

Hormonal Regulation of Heavy Metal Toxicity and Tolerance in Crop Plants

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