Effect of Air Pollution on Chlorophyll Content of Leaves

Giri, Sumitra; Shrivastava, Deepali; Deshmukh, Ketki; Dubey, P. S.

doi:10.12944/carj.1.2.04

Cited by 84 publications

(46 citation statements)

References 10 publications

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“…Dusts emitted from kilns are highly noxious due to their alkaline nature and the associated metals. Several studies have shown how dust deposition can modify the species representativeness on tree trunks (Cieslinski and Jaworska 1986;Gilbert 1976;Wittman and Turk 1988) or depress physiological parameters of both lichens and higher plants (Kumar and Thambavani 2012;Giri et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Spatial variation of eco-physiological parameters in the lichen Pseudevernia furfuracea transplanted in an area surrounding a cement plant (S Italy)

Lucadamo

Corapi

Paoli

et al. 2015

Environ Monit Assess

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Thalli of the lichen Pseudevernia furfuracea were transplanted for 3 months (November 2010-January 2011) at 61 monitoring sites around a cement plant near Castrovillari (Calabria, southern Italy). NH3, NO x and SO2 concentrations were monitored monthly in a subarea of 10 sites (SA10) where the cement plant was located. At the end of the exposure period, the integrity of cell membranes; membrane lipid peroxidation (thiobarbituric acid reactive substances, TBARS level); vitality (cell respiration); chlorophyll a; chlorophyll b; carotenoids; phaeophytization quotient; photosynthetic efficiency and thalli concentrations of Al, Ca, Mg, V and Fe were measured. NO x concentrations correlated with the site distance from the cement plant while NH3 concentrations correlated with lichen vitality within SA10. For the monitoring area as a whole, only Fe and Mg concentrations correlated with membrane lipid peroxidation, while TBARS levels showed a significant increase and chlorophyll a, chlorophyll b and carotenoids a significant decrease with respect to the lichen origin area. Multivariate analysis (detrended correspondence analysis, cluster analysis and multi-response permutation procedure) of the eco-physiological parameters × monitoring sites data set resulted in four clusters termed C1, C2, C3 and C4. The eco-physiological parameters were compared among the four clusters and lichen origin area by one-way ANOVA. An index of environmental favourableness (IEF) to lichens was calculated to evaluate the spatial recovery of impaired values of TBARS, chlorophyll a, chlorophyll b, xanthophylls + carotenoids and phaeophytization quotient. The results indicate that there is no clear spatial trend in mycobiont impairment even though the IEF values suggest a higher number of sites with low levels of membrane lipid peroxidation in the 2--3-km distance band from the cement plant (the outermost) than in the two other distance bands (0-1 and 1-2 km). The photobiont seems to be damaged mainly in the inner distance band of the study area as suggested by the gradual but significant recovery trend of pigment levels and phaeophytization quotient from the inner distance band to the outer one (as shown by the IEF values). Conversion of chlorophyll to phaeophytin probably is not the only process affecting pigment levels.

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Section: Introductionmentioning

confidence: 99%

Spatial variation of eco-physiological parameters in the lichen Pseudevernia furfuracea transplanted in an area surrounding a cement plant (S Italy)

Lucadamo

Corapi

Paoli

et al. 2015

Environ Monit Assess

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show abstract

“…3). Em condições de estresse abiótico como déficit hídrico, a taxa de biossíntese de clorofilas tende a diminuir (Giri et al 2013). Os teores de clorofila total nas plantas in vitro, são mais baixos que quando encontrados na natureza e podem ser explicados pela dependência da única fonte de carbono do meio de cultivo (López-Escamilla et al 2016).…”

Section: Resultsunclassified

Germinação, desenvolvimento inicial e morfoanatomia de cactáceas epifíticas

2018

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Resumo Cactáceas epífitas com potencial ornamental são encontradas na Mata Atlântica brasileira. As diferenças no processo de germinação e desenvolvimento inicial, entre espécies vegetais são de interesse na produção e estabelecimento de mudas. Este estudo teve por objetivo investigar a germinação e o desenvolvimento pós-seminal in vitro, em água e ágar, e a morfoanatomia do caule de indivíduos adultos, crescendo no ambiente natural de Rhipsalis neves-armondii, Rhipsalis teres e Lepismium cruciforme, ocorrentes em Santa Catarina. Análises do crescimento e desenvolvimento foram determinadas por medidas de comprimento, massa seca, teor de clorofilas e carotenóides. Análises anatômicas do hipocótilo e caule foram obtidas por secções transversais e paradérmicas utilizando técnicas clássicas. O desenvolvimento de plântulas, em água e ágar, indicou ser indispensável a incrementação de nutrientes, pois as substâncias de reserva foram exauridas até os 60 dias de cultivo. Em ágar, as sementes de R. neves-armondii não germinaram. Características anatômicas do hipocótilo das plântulas, bem como do caule dos indivíduos adultos, de R. teres e L. cruciforme foram similares. Cutícula espessa e parênquima aquífero constatados no hipocótilo e nos caules são características xéricas, importantes para economia hídrica destas epífitas que são protegidas da irradiação solar pelo forófito, mas com limitação de disponibilidade água.

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“…It might be due to the degradation of chlorophyll into pheophytin by the loss of magnesium ions. Leaf surface of trees in heavy polluted areas degraded chlorophyll content thereby reducing photosynthesis [5]. Thus any modification in chlorophyll concentration might change the morpho-physiological and biochemical activities of a particular species growing in roadside conditions.…”

Section: The Response Of Air Pollution Tolerance Index (Apti) and Othmentioning

confidence: 99%

“…The air pollution adversely impacts the photosynthetic pigment and consequently reduces productivity. Leaf chlorophyll, carotene, proline, and proteins are found to be influenced adversely by air pollutants [4][5][6][7][8]. The air pollution influences stomatal functioning and leaf thickness of urban plantation [9,10].…”

Section: Introductionmentioning

confidence: 99%

Assessing adaptation and mitigation potential of roadside trees under the influence of vehicular emissions: A case study of Grevillea robusta and Mangifera indica planted in an urban city of India

et al. 2020

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The ever-increasing vehicle counts have resulted in a significant increase in air pollution impacting human and natural ecosystems including trees, and physical properties. Roadside plantations often act as a first defense line against the vehicular emissions to mitigate the impacts of pollutants. However, they are themselves vulnerable to these pollutants with varying levels of tolerance capacity. This demands a scientific investigation to assess the role of roadside plantation for better management and planning for urban sprawl where selected trees could be grown to mitigate the impacts of harmful pollutants. The present study assesses the impacts of vehicular emissions on the adaptation and mitigation potential of two important roadside tree species i.e. Grevillea robusta and Mangifera indica planted along roadsides in the capital city of Uttarakhand. Uttarakhand is one of the Indian Western Himalayan State and its capital city is situated on the foothills of Himalaya. The adaptation and mitigation potential were evaluated by studying the response of pollutants on the functional traits which drive the physiology of the trees. The CO 2 assimilation rate, transpiration rate, stomatal conductance, water use efficiency (WUE), air pollution tolerance index (APTI), copper and proline accumulation, dust removal efficiency (DRE), leaf thickness and cooling created by plantation were studied to evaluate the response of trees exposed to roadside traffics. To compare the influence of pollutants, traits of trees grown in a control site with few or absence of vehicular movement were compared with the roadside trees. The control site represented part of a reserve forest where human interference is controlled and human-induced activities are prohibited. The vehicular frequency was found to modulate tree characteristics. The tree characteristics representing WUE, APTI, proline and copper accumulation, leaf thickness, cooling impact, and DRE were enhanced significantly, while the decreased CO 2 assimilation rate was observed near roadside trees compared to the control site. We found both of the species to perform well to be used as one of the potential species for roadside and urban greening. However, there is a need to assess the potential of other species in reference to the present study.

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Effect of Air Pollution on Chlorophyll Content of Leaves

Cited by 84 publications

References 10 publications

Spatial variation of eco-physiological parameters in the lichen Pseudevernia furfuracea transplanted in an area surrounding a cement plant (S Italy)

Spatial variation of eco-physiological parameters in the lichen Pseudevernia furfuracea transplanted in an area surrounding a cement plant (S Italy)

Germinação, desenvolvimento inicial e morfoanatomia de cactáceas epifíticas

Assessing adaptation and mitigation potential of roadside trees under the influence of vehicular emissions: A case study of Grevillea robusta and Mangifera indica planted in an urban city of India

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