Evaluating the Environmental Impacts of Fluoride on the Growth and Physiology of Cotton (Gossypium hirsutum)

Nawaz, Muhammad; Dawood, Muhammad; Javaid, Kainat; Imran, Muhammad; Zhao, Fengliang; Saima, Shahzadi; Shah, Syed Tansir Hussain

doi:10.17582/journal.pjar/2021/34.3.425.430

Cited by 3 publications

(5 citation statements)

References 15 publications

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“…Generally, in neutral and alkaline pH, uoride readily bound to soil surface and is not available to plants (Mondal and George, 2015). However, contamination with uoride causes decrease in chlorophyll thus affecting the germination, growth and physiological parameters of cotton (Nawaz et al, 2021).…”

Section: Content Of Uorine In Cotton Leaves and Rootsmentioning

confidence: 99%

“…The negative impact of technogenic dust on plants is associated with a reduction in the in ux of solar energy to photosynthetic cells, clogging of stomata as well as due to chemical processes caused by acidic dust components (pH of ammophos pulp is 3.85), as well as the transfer of uorine in the composition of technogenic dust directly into the leaf tissue (Nawaz et al, 2021).…”

Section: Content Phosphorus In Cotton Leaves and Rootsmentioning

confidence: 99%

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The supply of macro- and microelements to cotton plants at different distances from the pipes of fertilizer production factory

Litvinovich¹,

Lavrishchev

Bure

et al. 2023

Preprint

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Environmental pollution from industrial plants via air deposition is a globally urgent problem. The article presents the study of the influence of dust and gas emissions from a factory for the production of mineral fertilizers on cotton plants in Uzbekistan. The composition of technogenic dust deposited on plant leaves has been determined. The chemical composition of the above-ground and underground organs of cotton at different distances from the source of pollution has been established. The radius of aerial dispersion of industrial emissions was best described by measurements of the fluorine content in washed and unwashed cotton leaves. Empirical models have been developed that describe the relationship between P, K, Mg, Ca, S, F, and Mn in plant roots and leaves depending on the distance to the pollution source. The results of biometric observations were summarized and the yield of raw cotton was established. Zones of different levels of technogenic load on cotton plants were identified. It has been shown that the resistance of cotton against aerial pollution by acid gases (SO2 and H2S) from the emissions is determined by the ability of cotton plants to neutralize toxic compounds of their transformation by increasing the influx of alkaline earth metals to the affected tissues. This study showed the possibility of growing cotton in the vicinity of the fertilizer factory. Despite the resistance of cotton to industrial pollution, monitoring of areas identified as impact zones is recommended.

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Section: Content Of Uorine In Cotton Leaves and Rootsmentioning

confidence: 99%

Section: Content Phosphorus In Cotton Leaves and Rootsmentioning

confidence: 99%

The supply of macro- and microelements to cotton plants at different distances from the pipes of fertilizer production factory

Litvinovich¹,

Lavrishchev

Bure

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The negative effect of technogenic dust on cotton plants is associated with a reduction in the influx of solar energy to the photosynthetic cells, the clogging stomata, and the chemical processes caused by acidic dust components (the pH of ammophos pulp is 3.85), as well as the transfer of fluorine in the composition of technogenic dust directly into the leaf tissue [41].…”

Section: Contents Of Phosphorus In Cotton Leaves and In Rootsmentioning

confidence: 99%

“…Generally, in neutral and alkaline pH values, fluoride is readily bound to the soil surface and is not available to plants [42]. However, contamination with fluoride causes a decrease in chlorophyll, thus affecting the germination, growth, and physiological parameters of cotton [41].…”

Section: Contents Of Fluorine In Cotton Leaves and In Rootsmentioning

confidence: 99%

The Supply of Macro- and Microelements to Cotton Plants at Different Distances from a Fertilizer Production Factory

Litvinovich,

Lavrishchev,

Bure

et al. 2023

Agronomy

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Environmental pollution from industrial factories via air deposition is an urgent problem worldwide. Phosphate fertilizers, derived from rock phosphate, are characterized by the presence of potentially toxic elements, such as Zn, Co, Pb, Ni, Cr, Mn, Fe, and Cu, which are dispersed in the form of solid dust-like materials from the pipes of the factory. This study aimed to investigate the effects of airborne industrial emissions on the chemical and biochemical compositions of cotton grown in the immediate vicinity of a fertilizer factory in Uzbekistan. The composition of airborne dust deposited on the plants, the chemical composition of the cotton leaves before and after washing, as well as that of above- and below-ground plant organs, and their protein contents were determined. The concentrations of macro- and microelements in the leaves and roots were determined using an atomic absorption spectrophotometer. The fluorine contents in the leaves and in the roots were determined using a fluorine-selective electrode. The radius of dispersion of industrial emissions in the air was best described by measuring the fluorine contents in washed and unwashed cotton leaves. The relationships among P, K, Mg, Ca, S, F, and Mn in plant roots and leaves as a function of distance from the pollutant source were analyzed. Based on the fluorine contents in washed and unwashed cotton leaves, the two following zones of technogenic pollution were distinguished: the zone < 5 km from the factory, with high technogenic pollution, and the zone > 5 km from the factory, with moderate technogenic pollution. It was found that the resistance of cotton to air pollution from industrial emissions is determined by the ability of cotton plants to neutralize toxic compounds by increasing the influx of alkaline earth metals into the affected tissues. This study showed the possibility of growing cotton at a distance of >5 km from the fertilizer factory. It is strongly recommended to analyze the chemical composition of plants located in a highly polluted zone only after the dust particles have been washed off of the plant’s surface. Despite the resilience of cotton to industrial pollution, the monitoring of areas identified as pollution zones is recommended.

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“…As plantas apresentaram redução na taxa fotossintética (A), condutância estomática (gs) e na respiração (Rd), em todos os tratamentos contendo F, no entanto, reduções mais severas foram observadas no tratamento com maior concentração desse poluente (40 mg F L -1 ). Alterações no processo de fotossíntese também foram observadas em outras plantas tratadas com KF(Zouari et al, 2018;Rodrigues et al, 2020a Rodrigues et al, , 2020bNawaz et al, 2021;Sun et al, 2021). A interpretação para esse efeito foi a resposta rápida de fechamento dos estômatos devido às variações ambientais.…”

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Bixa orellana L. (Bixaceae): uma espécie potencial fitoindicadora de flúor na atmosfera

Gomes¹

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O flúor (F) liberado durante a manufatura de alumínio, fertilizantes, vidros e cerâmicas, é considerado altamente tóxico para as plantas, causando danos em concentrações relativamente baixas. O objetivo deste estudo foi avaliar as respostas promovidas pelo F em Bixa orellana, em curto e longo prazo, após o fim da exposição ao poluente. As plantas foram submetidas à chuva simulada contendo concentrações crescentes de F. Durante o experimento foram realizadas análises visuais, e ao final, foram coletadas amostras foliares para análises em microscopia de luz, microscopia eletrônica de varredura, teste para morte celular, quantificação de pigmentos fotossintéticos, de F, bixina, fitohormonios e enzimas antioxidantes, além de análise de trocas gasosas. Após o 6° dia a aplicação da chuva foi interrompida, e as plantas ficaram sob monitoramento. Durante o monitoramento, foram realizadas análises visuais. Completados 85 dias de experimento, foram coletadas amostras foliares para quantificação de F e biomassa, além de análise de trocas gasosas. Ocorreram cloroses, necroses, encarquilhamento foliar e alterações na estrutura anatômica das plantas expostas ao F. As folhas apresentaram tricomas glandulares flácidos, células epidérmicas atrofiadas, células do parênquima clorofiliano e laticíferos plasmolisados. Houve redução nos parâmetros fotossintéticos e no teor de pigmentos fotossintéticos. O estresse causado pelo F promoveu o aumento da atividade das enzimas superóxido dismutase (SOD) e peroxidase (POX). A concentração dos fitohormonios Ácido Salicílico (SA) e Ácido Aminociclopropano Carboxílico (ACC) aumentou durante o estresse, já a concentração de bixina nas folhas não foi alterada. Após 85 dias sem aplicação de F, as cloroses progrediram em extensão e evoluíram para necroses. Folhas adultas e jovens apresentaram alto teor de F em relação ao controle, além de redução nos valores da taxa fotossintética (A), condutância estomática (gs) e queda na produção de biomassa. Os sintomas apresentados indicam que B. orellana é sensível ao F, podendo ser indicada como espécie fitoindicadora de F na atmosfera em possíveis programas de biomonitoramento. Concluímos ainda que, após 85 dias sem exposição ao F, não houve respostas de recuperação aos danos provocados pelo poluente. Palavras-chave: Alterações anatômicas. Urucum. Bixina. Poluição do ar. Hormônios.

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Evaluating the Environmental Impacts of Fluoride on the Growth and Physiology of Cotton (Gossypium hirsutum)

Cited by 3 publications

References 15 publications

The supply of macro- and microelements to cotton plants at different distances from the pipes of fertilizer production factory

The supply of macro- and microelements to cotton plants at different distances from the pipes of fertilizer production factory

The Supply of Macro- and Microelements to Cotton Plants at Different Distances from a Fertilizer Production Factory

Bixa orellana L. (Bixaceae): uma espécie potencial fitoindicadora de flúor na atmosfera

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