Biological responses to heavy metal stress in the moss Leptodictyum riparium (Hedw.) Warnst

Maresca, Viviana; Bellini, Erika; Landi, Simone; Capasso, Giorgia; Cianciullo, Piergiorgio; Carraturo, Federica; Pirintsos, Stergios; Sorbo, Sergio; Toppi, Luigi Sanità di; Esposito, Sergio; Basile, Adriana

doi:10.1016/j.ecoenv.2021.113078

Cited by 18 publications

(14 citation statements)

References 41 publications

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“…Similar alterations were observed by Choudhury and Panda [ 38 , 39 ], in the moss Taxithelium nepalense after Pb and As exposure. Other studies pointed out the fact that heavy metal uptake causes a decrease in chlorophyll content [ 40 , 41 , 42 , 43 , 44 ], and a decrease in photosynthetic activity [ 45 , 46 , 47 , 48 ]. These changes at the cellular level cause toxicity at the organism level due to alteration of the normal metabolism.…”

Section: Bryophytes and Heavy Metalsmentioning

confidence: 99%

Non-Protein Thiol Compounds and Antioxidant Responses Involved in Bryophyte Heavy-Metal Tolerance

Salbitani

Maresca

Cianciullo

et al. 2023

IJMS

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Heavy-metal pollution represents a problem which has been widely discussed in recent years. The biological effects of heavy metals have been studied in both animals and plants, ranging from oxidative stress to genotoxicity. Plants, above all metal-tolerant species, have evolved a wide spectrum of strategies to counteract exposure to toxic metal concentrations. Among these strategies, the chelation and vacuolar sequestration of heavy metals are, after cell-wall immobilization, the first line of defence that prevent heavy metals from interacting with cell components. Furthermore, bryophytes activate a series of antioxidant non-enzymatic and enzymatic responses to counteract the effects of heavy metal in the cellular compartments. In this review, the role of non-protein thiol compounds and antioxidant molecules in bryophytes will be discussed.

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Section: Bryophytes and Heavy Metalsmentioning

confidence: 99%

Non-Protein Thiol Compounds and Antioxidant Responses Involved in Bryophyte Heavy-Metal Tolerance

Salbitani

Maresca

Cianciullo

et al. 2023

IJMS

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“…Furthermore, the ultrastructural appearance of C. racemosa may reflect the intracellular stress induced by Zn exposition. Usually, heavy metals induce damage to membranes, a reduction in cell wall surface and loss of the selective permeability of cell compartments [ 26 , 49 ]. Our results reported an alteration in the ultrastructure of the chloroplasts of Caulerpa grown in the presence of Zn, suggesting that the presence of the metal modifies the development of chloroplasts in a concentration-dependent manner.…”

Section: Discussionmentioning

confidence: 99%

“…Dehydration employed ethanol up to propylene oxide and was followed by embedding into Spurr’s epoxy medium. A Philips EM 208 S TEM was employed for observation, as previously described [ 26 ].…”

Section: Methodsmentioning

confidence: 99%

“…In this context, macroalgal bioremediation has acquired increased value [ 14 , 15 ]: bioremediation methods are widely used due their effectiveness, low cost and environmental protection. Specifically, biosorption is the process of sequestering heavy metals by non-living biomass of algae, lichens, fungi, mosses, bacteria and biomass wastes, including rice husks, wood fibers, sawdust, fly ash and tea stems [ 20 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

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Photosynthetic, Molecular and Ultrastructural Characterization of Toxic Effects of Zinc in Caulerpa racemosa Indicate Promising Bioremediation Potentiality

Landi

Santini

Vitale

et al. 2022

Plants

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Caulerpaceae are unconventional green algae composed of multinucleated, single siphonous cells. The species of Caulerpa are acquiring major scientific interest for both their invasion in the Mediterranean ecological niche and for the production of valuable natural metabolites. Furthermore, the abilities of Caulerpa spp. in the biorecovery of polluted waters were recently investigated. Among heavy metal contaminants in marine systems, zinc (Zn) is considered a critical pollutant, progressively accumulating from plastic leachates. In this study, the responses of Caulerpa racemosa to different levels (5–10 mg L−1) of Zn were studied for 14 days under laboratory-controlled conditions. Effects of Zn were monitored by measuring the growth rate, photosynthetic efficiency and gene expression. Moreover, the ability of Caulerpa to remove Zn from seawater was monitored. Zn induced detrimental effects by decreasing the relative growth rate (RGR) and maximal PSII photochemical efficiency (Fv/Fm). Moreover, C. racemosa, grown in contaminated seawater, reduced the levels of Zn to a final concentration of 1.026 and 1.932 mg L−1 after 14 days, thus demonstrating efficient uptake. Therefore, our results characterized the effects of zinc on C. racemosa and the possible role of this alga as being effective in the bioremediation of marine seawater.

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“…Phytochelatins are oligomers of glutathione found in plants, fungi, nematodes and all kinds of algae including cyanobacteria, which serve as chelators and are thus, vital for heavy metal detoxification. The concentrations of phytochelatins have been used to show that metals are indeed most likely to be a contributing factor in the decline of forests in the northern United States considering their role specific indicators of metal stress (Grill et al, 1988;Schat and Kalff, 1992;Maresca et al, 2022). Phytochelatin concentrations in red spruce, a species in decline are higher than that of balsam fir, a species, that is, not (Gawel et al, 1996).…”

Section: Environmental Pollution and Flora Declinementioning

confidence: 99%

Environmental Pollutants and Oxidative Stress in Terrestrial and Aquatic Organisms: Examination of the Total Picture and Implications for Human Health

et al. 2022

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There is current great international concern about the contribution of environmental pollution to the global burden of disease particularly in the developing, low- and medium-income countries. Industrial activities, urbanization, developmental projects as well as various increased anthropogenic activities involving the improper generation, management and disposal of pollutants have rendered today’s environment highly polluted with various pollutants. These pollutants include toxic metals (lead, cadmium, mercury, arsenic), polycyclic aromatic hydrocarbons, polychlorinated biphenyls, pesticides and diesel exhaust particles most of which appear to be ubiquitous as well as have long-term environmental persistence with a wide range of toxicities such as oxidative stress among others. Oxidative stress, which may arise from increased production of damaging free radicals emanating from increased pollutant burden and depressed bioavailability of antioxidant defenses causes altered biochemical and physiological mechanisms and has been implicated in all known human pathologies most of which are chronic. Oxidative stress also affects both flora and fauna and plants are very important components of the terrestrial environment and significant contributors of nutrients for both man and animals. It is also remarkable that the aquatic environment in which sea animals and creatures are resident is also highly polluted, leading to aquatic stress that may affect the survival of the aquatic animals, sharing in the oxidative stress. These altered terrestrial and aquatic environments have an overarching effect on human health. Antioxidants neutralize the damaging free radicals thus, they play important protective roles in the onset, progression and severity of the unmitigated generation of pollutants that ultimately manifest as oxidative stress. Consequently, human health as well as that of aquatic and terrestrial organisms may be protected from environmental pollution by mitigating oxidative stress and employing the principles of nutritional medicine, essentially based on antioxidants derived mainly from plants, which serve as the panacea of the vicious state of environmental pollutants consequently, the health of the population. Understanding the total picture of oxidative stress and integrating the terrestrial and aquatic effects of environmental pollutants are central to sustainable health of the population and appear to require multi-sectoral collaborations from diverse disciplinary perspectives; basically the environmental, agricultural and health sectors.

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Biological responses to heavy metal stress in the moss Leptodictyum riparium (Hedw.) Warnst

Cited by 18 publications

References 41 publications

Non-Protein Thiol Compounds and Antioxidant Responses Involved in Bryophyte Heavy-Metal Tolerance

Non-Protein Thiol Compounds and Antioxidant Responses Involved in Bryophyte Heavy-Metal Tolerance

Photosynthetic, Molecular and Ultrastructural Characterization of Toxic Effects of Zinc in Caulerpa racemosa Indicate Promising Bioremediation Potentiality

Environmental Pollutants and Oxidative Stress in Terrestrial and Aquatic Organisms: Examination of the Total Picture and Implications for Human Health

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