The cuticle micromorphology of in situ Erica arborea L. exposed to long-term volcanic gases

Bartiromo, Antonello; Guignard, Gaëtan; Lumaga, Maria Rosaria Barone; Barattolo, Filippo; Chiodini, Giovanni; Avino, R.; Guerriero, Giulia; Barale, Georges

doi:10.1016/j.envexpbot.2012.10.006

Cited by 31 publications

(15 citation statements)

References 54 publications

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“…The epidermis and subsidiary cells that structurally support guard cells collapse due to leaf anatomical damages to SO 2 exposure, and the stomata remain open due to stomatal malfunction, which in turn degrades water use efficiency [53]. Morphological damage of the plant cuticle layer negatively affects the cuticle wax and results in a difference in SO 2 absorption capacity between plants by breaking the protective barrier between the inside and outside of the plant [62].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Importance of Some East Asian Tree Species for Refinement of Air Quality by Estimating Air Pollution Tolerance Index, Anticipated Performance Index, and Air Pollutant Uptake

et al. 2020

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Potentials of tree species as biofilters depend on appropriate selection based on their tolerance to air pollution, which is usually evaluated by the air pollution tolerance index (APTI) and anticipated performance index (API). Thus, these index values need as a means of scientific understanding to assess the role of urban trees for better greenspace planning/management to mitigate impacts of gaseous air pollution such as ozone (O3) and sulfur dioxide (SO2). O3 exposure to Chionanthus retusus, Pinus densiflora, and Ginkgo biloba showed higher stomatal O3 flux than the others, finally resulting in both favoring stomatal movement and maintaining carbon fixation. In contrast, despite the whole tree enhanced SO2 uptake under excess SO2 exposure, the carbon assimilation capacity was only found in Taxus cuspidata and Zelkova serrata as a consequence of no stomatal sluggishness. On the basis of API, P. densiflora and Prunus × yedoensis were good performers for developing greenspace, while Z. serrata and G. biloba were moderate performers; however, C. retusus and T. cuspidata were estimated to be poor and very poor performers, respectively, for reducing the air quality injury caused by air pollutants. The present study suggests that an integration of both APTI and API based on stomatal absorption flux is needed for selecting sound tree-species in greenspace planning/construction to control gaseous air pollutions.

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Section: Discussionmentioning

confidence: 99%

Evaluation of the Importance of Some East Asian Tree Species for Refinement of Air Quality by Estimating Air Pollution Tolerance Index, Anticipated Performance Index, and Air Pollutant Uptake

et al. 2020

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“…Furthermore, as the hot spring waters were known to be rich in trace elements that may act as environmental stressors (Reddy et al, 2013). Oxidative stress, as known, can be detected by different approach using morphological, ultrastructural, immunoreactivity, chemical, biochemical and molecular approach (Scalici et al, 2017;Bartiromo et al, 2013;Guerriero et al, 2005;Guerriero, 2017ab;Pecoraro et al, 2017;Pecoraro et al, 2018). Variation in expression levels of HSP genes could be expected as a result of water physicochemical parameters alteration in Suez Canal and Alexandria, even though water quality wasn't analyzed.…”

Section: Discussionmentioning

confidence: 99%

Temperature changes and marine fish species (Epinephelus coioides and Sparus aurata): Role of oxidative stress biomarkers in toxicological food studies

et al. 2018

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The increase of seawater temperature as a result of global climate variation elucidates a major challenge for marine organisms survival in addition to consumers safety. Spotted grouper (Epinephelus coioides) and Seabream (Sparus aurata) were collected in water with different temperature variations at Suez Canal and Alexandria (Suez and Abu Qir bay) in Egypt with the aim to assess expression levels of heat shock proteins such as HSP47, HSP70 and HSP90 genes in addition to antioxidants value through enzymes activity: Glutathione-S-Transferase (GST) and Glutathione Peroxidase (GPx). Research results revealed that expression of the HSP47, HSP70a and HSP90 genes increased in marine fishes tissues collected from Suez Canal, with higher water temperature (23:28ºC), compared with those collected from Alexandria (19:24°C) whereas the content of GPx and GST decreased. Our results show alteration of the marker examined suggesting that the increase of heat shock protein genes expression levels of fish collected from Suez Canal might be exposed mainly to thermal oxidative stress response more than those collect from Alexandria. The increase of heat shock protein-related genes expression could be considered as a factor in prohibiting the heat shock transcription factor that may lead to stimulation of heat-inducible genes in addition to heat acclimation. Thus, warming of water is also likely to alter the composition and abundance of food resources, e.g. fish muscles, available to higher trophic level consumers.

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“…Both of these observations lend further support to the hypothesis that SO 2 was elevated across the Tr–J boundary. One potential direction for further investigation might be to examine the cuticular micromorphology and stomata of the preserved fossil cuticles for characteristic damage [22], [24], as has recently been done by Bartiromo et al, [43], and compare this to changes in leaf shape and/or alteration to SD/SI ratio [37] by exposure to SO 2 .…”

Section: Discussionmentioning

confidence: 99%

Increased Atmospheric SO2 Detected from Changes in Leaf Physiognomy across the Triassic–Jurassic Boundary Interval of East Greenland

et al. 2013

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The Triassic–Jurassic boundary (Tr–J; ∼201 Ma) is marked by a doubling in the concentration of atmospheric CO2, rising temperatures, and ecosystem instability. This appears to have been driven by a major perturbation in the global carbon cycle due to massive volcanism in the Central Atlantic Magmatic Province. It is hypothesized that this volcanism also likely delivered sulphur dioxide (SO2) to the atmosphere. The role that SO2 may have played in leading to ecosystem instability at the time has not received much attention. To date, little direct evidence has been presented from the fossil record capable of implicating SO2 as a cause of plant extinctions at this time. In order to address this, we performed a physiognomic leaf analysis on well-preserved fossil leaves, including Ginkgoales, bennettites, and conifers from nine plant beds that span the Tr–J boundary at Astartekløft, East Greenland. The physiognomic responses of fossil taxa were compared to the leaf size and shape variations observed in nearest living equivalent taxa exposed to simulated palaeoatmospheric treatments in controlled environment chambers. The modern taxa showed a statistically significant increase in leaf roundness when fumigated with SO2. A similar increase in leaf roundness was also observed in the Tr–J fossil taxa immediately prior to a sudden decrease in their relative abundances at Astartekløft. This research reveals that increases in atmospheric SO2 can likely be traced in the fossil record by analyzing physiognomic changes in fossil leaves. A pattern of relative abundance decline following increased leaf roundness for all six fossil taxa investigated supports the hypothesis that SO2 had a significant role in Tr–J plant extinctions. This finding highlights that the role of SO2 in plant biodiversity declines across other major geological boundaries coinciding with global scale volcanism should be further explored using leaf physiognomy.

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The cuticle micromorphology of in situ Erica arborea L. exposed to long-term volcanic gases

Cited by 31 publications

References 54 publications

Evaluation of the Importance of Some East Asian Tree Species for Refinement of Air Quality by Estimating Air Pollution Tolerance Index, Anticipated Performance Index, and Air Pollutant Uptake

Evaluation of the Importance of Some East Asian Tree Species for Refinement of Air Quality by Estimating Air Pollution Tolerance Index, Anticipated Performance Index, and Air Pollutant Uptake

Temperature changes and marine fish species (Epinephelus coioides and Sparus aurata): Role of oxidative stress biomarkers in toxicological food studies

Increased Atmospheric SO2 Detected from Changes in Leaf Physiognomy across the Triassic–Jurassic Boundary Interval of East Greenland

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