Aquatic macrophytes in morphological and physiological responses to the nanobubble technology application for water restoration

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dc.contributor.authorWang, Shuo
dc.contributor.authorLiu, Yunsi
dc.contributor.authorLyu, Tao
dc.contributor.authorPan, Gang
dc.contributor.authorLi, Pan
dc.date.accessioned2020-12-09T14:47:23Z
dc.date.available2020-12-09T14:47:23Z
dc.date.issued2020-12-04
dc.description.abstractNanobubble technology, as an emerging and sustainable approach, has been used for remediation of eutrophication. However, the influence of nanobubbles on the restoration of aquatic vegetation and the mechanisms are unclear. In this study, the effect of nanobubbles at different concentrations on the growth of Iris pseudacorus (Iris) and Echinodorus amazonicus (Echinodorus) was investigated. The results demonstrated that nanobubbles can enhance the delivery of oxygen to plants, while appropriate nanobubble levels will promote plant growth, excess nanobubbles could inhibit plant growth and photosynthesis. The nanobubble concentration thresholds for this switch from growth promotion to growth inhibition were 3.45 × 107 and 1.23 × 107 particles/mL for Iris and Echinodorus, respectively. Below the threshold, an increase in nanobubble concentration enhanced plant aerobic respiration and ROS generations in plants, resulting in superior plant growth. However, above the threshold, high nanobubble concentrations induced hyperoxia stress, particularly in submergent plants, which result in collapse of the antioxidant system and the inhibition of plant physiological activity. The expression of genes involved in modulating redox potential and the oxidative stress response, as well as the generation of relevant hormones, were also altered. Overall, this study provides an evidence-based strategy to guide the future application of nanobubble technology for sustainable management of natural waters.en_UK
dc.identifier.citationWang S, Liu Y, Lyu T, et al., (2020) Aquatic macrophytes in morphological and physiological responses to the nanobubble technology application for water restoration. ACS ES&T Water, Volume 1, Issue 2, December 2020, pp. 376-387en_UK
dc.identifier.issn2690-0637
dc.identifier.urihttps://doi.org/10.1021/acsestwater.0c00145
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16067
dc.language.isoenen_UK
dc.publisherAmerican Chemical Societyen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjecteutrophication controlen_UK
dc.subjectfloating-bed wetlanden_UK
dc.subjectoxidant/antioxidant speciesen_UK
dc.subjectchlorophyll contenten_UK
dc.subjectgene expressionen_UK
dc.subjecthormone generationen_UK
dc.titleAquatic macrophytes in morphological and physiological responses to the nanobubble technology application for water restorationen_UK
dc.typeArticleen_UK

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