Phosphorus relieves aluminum toxicity in oil tea seedlings by regulating the metabolic profiling in the roots

Qu, Xinjing; Zhou, Jinlin; Masabni, Joseph; Yuan, Jiangang

doi:10.1016/j.plaphy.2020.04.030

Cited by 24 publications

(12 citation statements)

References 33 publications

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“…Niazi et al (2017) found that addition of P minimizes As-induced damage to mustard growth by improving photosynthetic attributes, but the protective mechanisms were not resolved. Recently, Qu et al (2020) reported that supplementation with P to oil tea (Camellia oleifera) enhanced root growth and carbohydrate content under aluminium stress. These findings strongly imply that higher As induces oxidative stress and MG content in plants and causes membrane damage.…”

Section: Discussionmentioning

confidence: 99%

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Phosphorus supplementation modulates nitric oxide biosynthesis and stabilizes the defence system to improve arsenic stress tolerance in mustard

Khan

Jahan

et al. 2021

Plant Biol J

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The interaction of mineral nutrients with metals/metalloids and signalling molecules is well known. In the present study, we investigated the effect of phosphorus (P) in mitigation of arsenic (As) stress in mustard (Brassica juncea L.).• The study was conducted to investigate potential of 30 mg PÁkg À1 soil P supplement (diammonium phosphate) to cope up with the adverse effects of As stress (24 mg AsÁkg À1 soil) in mustard plants • Supplementation of P influenced nitric oxide (NO) generation, which up-regulated proline metabolism, ascorbate-glutathione system and glyoxalase system and alleviated the effects of on photosynthesis and growth. Arsenic stress generated ROS and methylglyoxal content was scavenged through P-mediated NO, and reduced As translocation from roots to leaves. The involvement of NO under P-mediated alleviation of As stress was substantiated with the use of cPTIO (NO biosynthesis inhibitor) and SNP (NO inducer). The reversal of P effects on photosynthesis under As stress with the use of cPTIO emphasized the role of P-mediated NO in mitigation of As stress and protection of photosynthesis • The results suggested that P reversed As-induced oxidative stress by modulation of NO formation, which regulated antioxidant machinery. Thus, P-induced regulatory interaction between NO and reversal of As-induced oxidative stress for the protection of photosynthesis may be suggested for sustainable crops.

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Section: Discussionmentioning

confidence: 99%

“…Recently, Qu et al . (2020) reported that supplementation with P to oil tea ( Camellia oleifera ) enhanced root growth and carbohydrate content under aluminium stress. These findings strongly imply that higher As induces oxidative stress and MG content in plants and causes membrane damage.…”

Section: Discussionmentioning

confidence: 99%

Phosphorus supplementation modulates nitric oxide biosynthesis and stabilizes the defence system to improve arsenic stress tolerance in mustard

Khan

Jahan

et al. 2021

Plant Biol J

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“…reduce the effect of Al toxicity. The addition of P relieves Al toxicity by increasing the carbohydrate content and relieving the inhibition of protein synthesis [185]. The application of malate has also been shown to alleviate Al toxicity in Pinus massoniana seedlings [186].…”

Section: Small Molecules To Alleviate Al Toxicitymentioning

confidence: 99%

Recent Advances in Understanding Mechanisms of Plant Tolerance and Response to Aluminum Toxicity

et al. 2021

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Aluminum (Al) toxicity is a major environmental stress that inhibits plant growth and development. There has been impressive progress in recent years that has greatly increased our understanding of the nature of Al toxicity and its mechanisms of tolerance. This review describes the transcription factors (TFs) and plant hormones involved in the adaptation to Al stress. In particular, it discusses strategies to confer plant resistance to Al stress, such as transgenic breeding, as well as small molecules and plant growth-promoting rhizobacteria (PGPRs) to alleviate Al toxicity. This paper provides a theoretical basis for the enhancement of plant production in acidic soils.

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“…The experimental treatments were the same as previously described in Qu et al (2020). Specifically, four-month-old healthy and uniform seedlings of C. oleifera 'Huajin' with 14-16 cm height were selected and planted in plastic pots filled with a mixture of sand and perlite.…”

Section: Experiments Treatmentsmentioning

confidence: 99%

Phosphorus Reduces Aluminum Toxicity in Oil Tea Roots by Regulating the Cell Wall Components and Antioxidant Defense System

Qu¹

2021

IJAB

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Aluminum (Al) toxicity is one of the most important impeding factors for plant growth and productivity in acidic soils. Phosphorus (P) application may alleviate Al stress in many plants. In this study we investigated the effect of P on Al toxicity in cell wall components and oxidative stress and to explore the underlying mechanisms in oil tea (Camellia oleifera Abel.) roots. Results indicated that Al toxicity severely inhibited root elongation, changed cell wall components, and caused oxidative damage to the roots of oil tea. However, P supply reduced the adsorption of Al in the cell wall by decreasing the demethylesterfied pectin content and hemicellulose 1 content that decreased the Al binding sites. Moreover, the addition of Palleviated the inhibition of xyloglucan endotransglucosylase and endo-β-1,4-glucanases activities under Al stress, which enhanced the loosening of the cell wall. P addition reduced the activities of polyphenol oxidase and phenylalanine ammonia lyase and enhanced the activities of reactive oxygen species scavenging enzymes, which reduced the oxidative damage caused by Al toxicity. The results reveal important mechanisms of P-induced mitigation of Al stress in oil tea roots that might be useful in the cultivation of plants on acidic soils.© 2021 Friends Science Publishers

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Phosphorus relieves aluminum toxicity in oil tea seedlings by regulating the metabolic profiling in the roots

Cited by 24 publications

References 33 publications

Phosphorus supplementation modulates nitric oxide biosynthesis and stabilizes the defence system to improve arsenic stress tolerance in mustard

Phosphorus supplementation modulates nitric oxide biosynthesis and stabilizes the defence system to improve arsenic stress tolerance in mustard

Recent Advances in Understanding Mechanisms of Plant Tolerance and Response to Aluminum Toxicity

Phosphorus Reduces Aluminum Toxicity in Oil Tea Roots by Regulating the Cell Wall Components and Antioxidant Defense System

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