Urban dust load impact on gas-exchange parameters and growth of Sophora japonica L. seedlings

Liu, Bao; Ma, Keping; Zhang, S.; Lin, Lijin; Qu, Laiye

doi:10.17221/215/2015-pse

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The photosynthesis is indirectly reduced by heavy metal accumulation in leaves, which influences the functioning of the stomata and hence rate of photosynthesis and transpiration (Aggarwal et al 2012). The photosynthesis can also be influenced by airborne dust, Bao et al (2015) state that road dust decreases P n and total chlorophyll. Lower values of net photosynthetic rates of ten woody species in response to air pollution in Southern China were presented by Zhang et al (2013).…”

Section: Resultsmentioning

confidence: 99%

Impact of expressway on physiology of plants and accumulation of risk elements in forest ecosystems

Kuklová¹,

Hniličková²,

Hnilička³

et al. 2019

PLANT SOIL ENVIRON

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This study analyses the effects of expressways on physiology and risk elements content in plants (Quercus cerris L., Prunus spinosa L., Melica uniflora Retz.) and soils. Study forest stands are located at a distance of 30 m to 8100 m from the expressway ‘R1 Nitra – Tekovské Nemce’ (southwest Slovakia). The effect of distance from the road on the content of cadmium (Cd) in soils indicated an increase of the element in mineral layers in the 30 m variant; excessive Cd values were recorded in O-horizons and in the background zone. Also copper (Cu) showed a marked enrichment of surface horizons caused by car traffic. The results of redundancy discriminant analysis showed that the most important environmental variables related to physiological parameters of plants were the content of Cd and Cu in plants (P < 0.05) and the content of Cu in soils (P < 0.05). However, M. uniflora species responded most sensitively to a decrease of average chlorophyl content as a consequence of excessive accumulation of Cd in leaf tissues. The obtained results indicate risk of exposure to risk elements in soils and plants of forest stands under conditions of polluted air, but also under specific environmental conditions.

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Section: Resultsmentioning

confidence: 99%

Impact of expressway on physiology of plants and accumulation of risk elements in forest ecosystems

Kuklová¹,

Hniličková²,

Hnilička³

et al. 2019

PLANT SOIL ENVIRON

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show abstract

“…Similar findings to our results have also been reported by Khalid et al, (2017). Bao et al, (2015) observed decrease in gas exchange attributes resulting a 16% decline in rate of photosynthesis in Sophora japonica under the effect of roadside pollutants. Likewise, Hassan et al, (2013) also noted alteration in gas exchange parameters of lettuce plants growing in some urban areas of Saudi Arabia, which was correlated significantly with metal pollutants.…”

Section: Discussionmentioning

confidence: 86%

Physio-biochemical responses of apple-of-sodom [Calotropis procera (Aiton) W. T. Aiton] to vehicular pollution

Hadayat¹,

Hussain²,

Shahbaz³

et al. 2018

PAK.J.BOT.

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Vehicular traffic has become a primary source of pollution along the roadsides which adversely affects plants and other biota. This study was conducted to assess the effects of vehicular pollutants on Calotropis procera growing at different sites along two major roads [Pindi Bhattian to Kala Shah Kaku (M-2) and Lahore to Gujranwala (G.T. road)] in the Punjab province of Pakistan. Control samples of Calotropis procera were collected at a distance of 50 m away from the roads. The photosynthetic rate (A), stomatal conductance (gs), transpiration rate (E), water use efficiency (WUE), contents of photosynthetic pigments, total free amino acids and antioxidant activity of C. procera were determined. The results showed significantly lower contents of chlorophyll a, chlorophyll b, total chlorophyll and carotenoids in C. procera along the roadside as compared to control plants. Similarly, stomatal conductance was also significantly lower, as was the case with photosynthetic and transpiration rates in C. procera growing along the roadside. The overall decrease in photosynthetic rate of C. procera was 34.90% and 44.79% along M-2 and G.T. road, respectively as compared to control. Reduced photosynthesis in roadside plants resulted in higher levels of water use efficiency. The higher contents of free amino acids and antioxidant activity were recorded and might be ascribed to the activation of the defense system of plants to cope with the detrimental effects of vehicle-related air pollutants. The correlation of different attributes of C. procera with traffic density was significant that suggested the direct impact of vehicular emissions on this species. Hence, C. procera can be used as a biomonitor of vehicular pollution.

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“…Dust particles are absorbed through various parts of trees affecting tree growth by reducing the chemical process rate and causing cell death and chlorophyll degradation. Several studies have shown that dust pollution has a negative impact on plants as it reduces photosynthesis and causes leaf fall with tissue death [24]. The response of the plant to dust accumulation may vary according to different species, as dust deposition fluctuates with plant species due to leaf orientation, leaf surface geometry, leaf pubescence, height, and canopy of roadside plants [25].…”

Section: Discussionmentioning

confidence: 99%

Effect of Dust Types on the Eco-Physiological Response of Three Tree Species Seedlings: Eucalyptus camaldulensis, Conocarpus erectus and Bombax ceiba

et al. 2022

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Dust is the collection of fine particles of solid matter, and it is a major issue of atmospheric pollution. Dust particles are becoming the major pollutants of the urban environment due to hyperbolic manufacturing and automobile pollution. These atmospheric pollutants are not only hazardous for human beings, but they also affect tree growth, particularly in urban environments. This study was designed to examine the changes in morphological and physiological traits of three tree species seedlings (Eucalyptus camaldulensis, Conocarpus erectus, and Bombax ceiba) in response to different dust types. In a pot experiment under controlled conditions, three-month-old seedlings of selected trees species were subjected to four treatments of dust: T1 = controlled; T2 = wood dust; T3 = soil dust; and T4 = carbon dust. During the whole experiment, 10 g/plant/dose was applied in 8 doses with a one-week interval. The results depicted that the growth was the maximum in T1 (control) and the minimum in T4 (carbon dust). In our findings, B. ceiba performed better under the same levels of dust pollution as compared with the other two tree species. The B. ceiba tree species proved to be the most tolerant to dust pollution by efficiently demolishing oxidative bursts by triggering SOD, POD, and CAT under different dust types compared to controlled conditions. Stomatal conductance, photosynthetic rate, and transpiration rate were negatively influenced in all three tree species in response to different dust applications. Based on the findings, among these three tree species, B. ceiba is recommended for dust polluted areas followed by E. camaldulensis and Conocarpus erectus due to their better performance and efficient dust-foraging potential.

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Urban dust load impact on gas-exchange parameters and growth of Sophora japonica L. seedlings

Cited by 5 publications

References 18 publications

Impact of expressway on physiology of plants and accumulation of risk elements in forest ecosystems

Impact of expressway on physiology of plants and accumulation of risk elements in forest ecosystems

Physio-biochemical responses of apple-of-sodom [Calotropis procera (Aiton) W. T. Aiton] to vehicular pollution

Effect of Dust Types on the Eco-Physiological Response of Three Tree Species Seedlings: Eucalyptus camaldulensis, Conocarpus erectus and Bombax ceiba

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