Ascorbic acid alleviation of manganese-induced toxicity in Vallisneria natans (Lour.) Hara

Fan, Pei; Yin, Jun; Zhong, Guidi; Wu, Zhengxuan

doi:10.1007/s11356-020-09479-5

Cited by 8 publications

(1 citation statement)

References 57 publications

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“…It is documented that external supply of moderate ascorbic acid (≤50 mg L −1 ) mediates Mn toxicity in V. natans via antioxidant defence system, cytomembrane stability, soluble material, and photosynthetic pigment, but high dose of ascorbic acid (≥100 mg L −1 ) exacerbates Mn toxicity, although the pathway by which excess ascorbic acid inversely acts as a stress factor remains vague [54]. The extra addition of ascorbic acid at 1 mM alleviates Mn stress in hydroponic non-heading Chinese cabbage [55], and foliar spray of 5-10 µM ascorbic acid mitigates Mn toxicity in cowpea [56].…”

Section: The Influence Of Ascorbic Acid Spraymentioning

confidence: 99%

The Combined Use of Soil Conditioner and Foliar Sulfur Spray Successfully Prevents Dark Pericarp Disease Induced by Manganese Toxicity in Litchi

Liu,

Bai,

Guo

et al. 2024

Agronomy

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Manganese toxicity is a major obstacle to agriculture in acid soils. Dark pericarp disease (DPD) is a newly spread physiological disorder induced by excess Mn in litchi, leading to undesirable fruit appearance and substantial economic loss. In this work, broadcast of alkaline soil conditioner in winter, followed by foliar sprays of ascorbic acid and sulfur solution at fruit development, was adopted to examine the effect of these combinations on DPD alleviation in a litchi orchard, with DPD morbidities of 70~85% in recent ten years. The combination of soil conditioner broadcast and foliar water spray was used as the control. At harvest, DPD incidence was significantly decreased by sulfur spray (3.3 ± 1.0%) and slightly reduced by ascorbic acid spray (10.7 ± 8.0%) compared to the control (12.9 ± 7.6%). Soil pH and available Mn were significantly increased and reduced by the soil conditioner broadcast. Sulfur spray significantly inhibited Mn uptake but enhanced the accumulation of Mg, Ca, sugars and cyanidin-3-rutinoside in the pericarp, leading to improved fruit pigmentation. Antioxidase activities were regulated to resist Mn stress by sulfur spray. The spray of ascorbic acid could not mitigate DPD as expected, probably due to the dose used. Conclusively, this study provides a practicable approach to mitigate Mn phytoavailability in acid soils.

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Section: The Influence Of Ascorbic Acid Spraymentioning

confidence: 99%