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Pereira MAG, Domingos M, da Silva EA, Aragaki S, Ramon M, Barbosa de Camargo P, Ferreira ML. Isotopic composition (δ 13C and δ 15N) in the soil-plant system of subtropical urban forests. Sci Total Environ 2022; 851:158052. [PMID: 35988596 DOI: 10.1016/j.scitotenv.2022.158052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
This study brings information on the dynamics of C and N in urban forests in a subtropical region. We tested the hypothesis that C and N isotopic sign of leaves and soil and physiological traits of trees would vary from center to periphery in a megacity, considering land uses, intensity of automotive fleet and microclimatic conditions. 800 trees from four fragments were randomly chosen. Soil samples were collected at every 10 cm in trenches up to 1 m depth to analyze C and N contents. Both, plants and soil were assessed for δ13C, δ15N, %C and %N. Physiological traits [carbon assimilation (A)], CO2 internal and external pressure ratio (Pi/Pa) and intrinsic water use efficiency iWUE were estimated from δ13C and Δ δ13C in leaves and soil ranged from -27.42 ‰ to -35.39 ‰ and from -21.22 ‰ to -28.18 ‰, respectively, and did not vary along the areas. Center-periphery gradient was not evidenced by C. Emissions derived from fossil fuel and distinct land uses interfered at different levels in δ13C signature. δ15N in the canopy and soil varied clearly among urban forests, following center-periphery gradient. Leaf δ15N decreased from the nearest forest to the city center to the farthest, ranging from <3 ‰ to <-3 ‰. δ15N was a good indicator of atmospheric contamination by NOx emitted by vehicular fleet and a reliable predictor of land use change. %N followed the same trend of δ15N either for soils or leaves. Forest fragments located at the edges of the center-periphery gradient presented significantly lower A and Pi/Pa ratio and higher iWUE. These distinct physiological traits were attributed to successional stage and microclimatic conditions. Results suggest that ecosystem processes related to C and N and ecophysiological responses of urban forests vary according to land use and vehicular fleet.
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Affiliation(s)
| | - Marisa Domingos
- Instituto de Pesquisas Ambientais, Caixa Postal 68041, 04045-972 Sao Paulo, Brazil
| | | | - Sonia Aragaki
- Instituto de Pesquisas Ambientais, Caixa Postal 68041, 04045-972 Sao Paulo, Brazil
| | - Mauro Ramon
- Universidade Nove de Julho, Av. Dr. Adolpho Pinto, 109 - Barra Funda, Sao Paulo, SP 01156-050, Brazil
| | - Plinio Barbosa de Camargo
- Centro de Energia Nuclear na Agricultura da Universidade de Sao Paulo (CENA/USP), Av. Centenário, 303, 13400-970 Piracicaba, Brazil
| | - Maurício Lamano Ferreira
- Centro Universitário Adventista de Sao Paulo, Estrada de Itapecerica 5859, 05858-001, Sao Paulo, Brazil; Universidade de Guarulhos, R. Eng. Prestes Maia, 88-07023-070 Guarulhos, Brazil.
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Almeida Rodrigues A, Almeida Rodrigues D, de Fátima Sales J, Carvalho Vasconcelos Filho S, Carlos Costa A, Lino Rodrigues C, Alves da Silva A, Domingos M, Müller C. Morphoanatomical, Physiological, and Biochemical Indicators in Lactuca sativa L. Germination and Growth in Response to Fluoride. Plants (Basel) 2022; 11:3406. [PMID: 36501445 PMCID: PMC9738690 DOI: 10.3390/plants11233406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/23/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Fluoride is one of the main phytotoxic environmental pollutants, and high concentrations (10-30 mg L-1) are commonly detected in surface and groundwater. Little, however, is known about the effects of this pollutant on crops that require irrigation during their development, which, in addition to phytotoxicity, may cause negative human health effects. Thus, the aim of this study was to characterize the effects of potassium fluoride (KF) on the germination of lettuce seeds and identify the physiological and anatomical markers of this pollutant's action on plants exposed to it during growth. Initially, lettuce seeds were sown in gerboxes and soaked in solutions containing 0 mg L-1, 10 mg L-1, 20 mg L-1, and 30 mg L-1 KF. Plants grown in a greenhouse were treated daily with KF irrigation at the same KF concentrations for 40 days. KF exposure reduced the germination rate and germination speed index of lettuce seeds at 20 mg L-1 and 30 mg L-1, resulting in compromised root development at the highest KF concentration. Lettuce plants displayed a slight photosynthesis reduction and a significant photochemical efficiency decrease after exposures to all KF concentrations. Lower chlorophyll contents and nitrogen balance indices were observed in plants exposed to 30 mg L-1 KF. On the other hand, increases in phenolic compounds and malondialdehyde were noted with increasing KF concentrations. Lettuce plants can, therefore, accumulate fluoride in leaves when irrigated with KF-rich water. The investigated physiological and biochemical variables were proven to be adequate fluoride action biomarkers in lettuce plants and may become an important tool in the study of olericulture contaminants.
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Affiliation(s)
- Arthur Almeida Rodrigues
- Laboratory of Seeds, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
- Laboratory of Plant Anatomy, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
| | - Douglas Almeida Rodrigues
- Laboratory of Seeds, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
- Laboratory of Plant Anatomy, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
| | - Juliana de Fátima Sales
- Laboratory of Seeds, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
| | - Sebastião Carvalho Vasconcelos Filho
- Laboratory of Plant Anatomy, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
| | - Alan Carlos Costa
- Laboratory of Ecophysiology and Plant Productivity, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
| | - Cássia Lino Rodrigues
- Laboratory of Seeds, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
| | - Adinan Alves da Silva
- Laboratory of Ecophysiology and Plant Productivity, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Miguel Stéfano Ave. 3687, São Paulo 04045-972, Brazil
| | - Caroline Müller
- Laboratory of Ecophysiology and Plant Productivity, Goiano Federal Institute of Education, Science and Technology (IFGoiano), Campus Rio Verde, P.O. Box 66, Rio Verde 75901-970, Brazil
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De Marco A, Sicard P, Feng Z, Agathokleous E, Alonso R, Araminiene V, Augustatis A, Badea O, Beasley JC, Branquinho C, Bruckman VJ, Collalti A, David‐Schwartz R, Domingos M, Du E, Garcia Gomez H, Hashimoto S, Hoshika Y, Jakovljevic T, McNulty S, Oksanen E, Omidi Khaniabadi Y, Prescher A, Saitanis CJ, Sase H, Schmitz A, Voigt G, Watanabe M, Wood MD, Kozlov MV, Paoletti E. Strategic roadmap to assess forest vulnerability under air pollution and climate change. Glob Chang Biol 2022; 28:5062-5085. [PMID: 35642454 PMCID: PMC9541114 DOI: 10.1111/gcb.16278] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 03/02/2022] [Accepted: 05/18/2022] [Indexed: 05/13/2023]
Abstract
Although it is an integral part of global change, most of the research addressing the effects of climate change on forests have overlooked the role of environmental pollution. Similarly, most studies investigating the effects of air pollutants on forests have generally neglected the impacts of climate change. We review the current knowledge on combined air pollution and climate change effects on global forest ecosystems and identify several key research priorities as a roadmap for the future. Specifically, we recommend (1) the establishment of much denser array of monitoring sites, particularly in the South Hemisphere; (2) further integration of ground and satellite monitoring; (3) generation of flux-based standards and critical levels taking into account the sensitivity of dominant forest tree species; (4) long-term monitoring of N, S, P cycles and base cations deposition together at global scale; (5) intensification of experimental studies, addressing the combined effects of different abiotic factors on forests by assuring a better representation of taxonomic and functional diversity across the ~73,000 tree species on Earth; (6) more experimental focus on phenomics and genomics; (7) improved knowledge on key processes regulating the dynamics of radionuclides in forest systems; and (8) development of models integrating air pollution and climate change data from long-term monitoring programs.
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Affiliation(s)
| | | | - Zhaozhong Feng
- Key Laboratory of Agro‐Meteorology of Jiangsu Province, School of Applied MeteorologyNanjing University of Information Science & TechnologyNanjingChina
| | - Evgenios Agathokleous
- Key Laboratory of Agro‐Meteorology of Jiangsu Province, School of Applied MeteorologyNanjing University of Information Science & TechnologyNanjingChina
| | - Rocio Alonso
- Ecotoxicology of Air Pollution, CIEMATMadridSpain
| | - Valda Araminiene
- Lithuanian Research Centre for Agriculture and ForestryKaunasLithuania
| | - Algirdas Augustatis
- Faculty of Forest Sciences and EcologyVytautas Magnus UniversityKaunasLithuania
| | - Ovidiu Badea
- “Marin Drăcea” National Institute for Research and Development in ForestryVoluntariRomania
- Faculty of Silviculture and Forest Engineering“Transilvania” UniversityBraşovRomania
| | - James C. Beasley
- Savannah River Ecology Laboratory and Warnell School of Forestry and Natural ResourcesUniversity of GeorgiaAikenSouth CarolinaUSA
| | - Cristina Branquinho
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de CiênciasUniversidade de LisboaLisbonPortugal
| | - Viktor J. Bruckman
- Commission for Interdisciplinary Ecological StudiesAustrian Academy of SciencesViennaAustria
| | | | | | - Marisa Domingos
- Instituto de BotanicaNucleo de Pesquisa em EcologiaSao PauloBrazil
| | - Enzai Du
- Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina
| | | | - Shoji Hashimoto
- Department of Forest SoilsForestry and Forest Products Research InstituteTsukubaJapan
| | | | | | | | - Elina Oksanen
- Department of Environmental and Biological SciencesUniversity of Eastern FinlandJoensuuFinland
| | - Yusef Omidi Khaniabadi
- Department of Environmental Health EngineeringIndustrial Medial and Health, Petroleum Industry Health Organization (PIHO)AhvazIran
| | | | - Costas J. Saitanis
- Lab of Ecology and Environmental ScienceAgricultural University of AthensAthensGreece
| | - Hiroyuki Sase
- Ecological Impact Research DepartmentAsia Center for Air Pollution Research (ACAP)NiigataJapan
| | - Andreas Schmitz
- State Agency for Nature, Environment and Consumer Protection of North Rhine‐WestphaliaRecklinghausenGermany
| | | | - Makoto Watanabe
- Institute of AgricultureTokyo University of Agriculture and Technology (TUAT)FuchuJapan
| | - Michael D. Wood
- School of Science, Engineering and EnvironmentUniversity of SalfordSalfordUK
| | | | - Elena Paoletti
- Department of Forest SoilsForestry and Forest Products Research InstituteTsukubaJapan
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Maressa Hungria de Lima e Silva I, Almeida Rodrigues A, de Fátima Sales J, Almeida Rodrigues D, Carvalho Vasconcelos Filho S, Lino Rodrigues C, Ferreira Batista P, Carlos Costa A, Domingos M, Müller C, Alves da Silva A. Fluoride effect indicators in Phaseolus vulgaris seeds and seedlings. PeerJ 2022; 10:e13434. [PMID: 35602888 PMCID: PMC9121868 DOI: 10.7717/peerj.13434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 04/22/2022] [Indexed: 01/20/2023] Open
Abstract
Background Fluoride (F) is one of the main environmental pollutants, and high concentrations are commonly detected in the air and in both surface and groundwater. However, the effects of this pollutant on seed germination and on the initial growth of crop seedlings are still poorly understood. In this context, the aim of this study was to assess morphoanatomical, physiological and biochemical fluoride effect indicators in Phaseolus vulgaris L. seeds and seedlings. Methods P. vulgaris seeds were exposed to a liquid potassium fluoride solution (KF, pH 6.0) at concentrations of 0 (control), 10, 20, 30 mg L-1 for 7 days. A completely randomized experimental design was applied, consisting of four treatments with four replications each. During the experimental period, physiological (7 days) anatomical and histochemical (2 days), biochemical and chemical (4 days) assessments. An analysis of variance was performed followed by Dunnett's test. to determine significant differences between the KF-exposed groups and control seeds; and a multivariate analysis was performed. Results The germination parameters, and anatomical, morphological, physiological, biochemical and nutritional characteristics of the seedlings did not show negative effects from exposure to KF at the lowest doses evaluated. On the other hand, treatment with the highest dose of KF (30 mg L-1) resulted in a lower germination rate index and increase in abnormal seedlings, and higher electrical conductivity. A lower root length, magnesium content and photochemical efficiency were also observed. The exposure of P. vulgaris to KF, regardless the dose did not affect seeds anatomy and the accumulation of starch and proteins, in relation to the control group. Conclusions Our findings demonstrated that P. vulgaris seedlings were tolerant to KF solutions up to 20 mg L-1, and sensitive when exposed to 30 mg KF L-1.
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Affiliation(s)
| | - Arthur Almeida Rodrigues
- Laboratory of Seeds, Goiano Federal Institute of Science and Technology, Rio Verde, GO, Brasil
- Laboratory of Plant Anatomy, Goiano Federal Institute of Education, Rio Verde, GO, Brasil
| | - Juliana de Fátima Sales
- Laboratory of Seeds, Goiano Federal Institute of Science and Technology, Rio Verde, GO, Brasil
| | | | | | - Cássia Lino Rodrigues
- Laboratory of Seeds, Goiano Federal Institute of Science and Technology, Rio Verde, GO, Brasil
| | - Priscila Ferreira Batista
- Laboratory of Ecophysiology and Plant Productivity, Goiano Federal Institute of Education, Rio Verde, GO, Brasil
| | - Alan Carlos Costa
- Laboratory of Ecophysiology and Plant Productivity, Goiano Federal Institute of Education, Rio Verde, GO, Brasil
| | - Marisa Domingos
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, São Pualo, SP, Brasil
| | - Caroline Müller
- Laboratory of Ecophysiology and Plant Productivity, Goiano Federal Institute of Education, Rio Verde, GO, Brasil
| | - Adinan Alves da Silva
- Laboratory of Ecophysiology and Plant Productivity, Goiano Federal Institute of Education, Rio Verde, GO, Brasil
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Santos DD, Santos OSL, Domingos M, Rinaldi MCS. Pah levels in the soil-litter-vegetation-atmosphere system of Atlantic Forest remnants in Southeast Brazil. Environ Monit Assess 2022; 194:293. [PMID: 35332388 DOI: 10.1007/s10661-022-09946-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
Although the Brazilian Atlantic Forest is a hotspot for biodiversity conservation, it is one of the most fragmented biomes in Brazil and also affected by air pollutants such as polycyclic aromatic hydrocarbons (PAHs). The study aimed at measuring the PAH levels in leaf trees, litter, soil, and atmosphere of two Atlantic Forest remnants impacted by air pollutants during summer and winter periods; identifying emission sources; and investigating the relationship among the PAH concentrations in the soil, litter, leaves, and atmosphere. Site 1 is situated in the largest South American city, with rainy summers and dry winters, and characterized by intense urbanization. Site 2 is situated in a large forest continuum and is characterized by wet climate with no defined dry seasons. It is more distant from the anthropogenic urban sources than site 1, but closer to an industrial complex. No differences were detected for PAH amounts (summer + winter) in the particles and wet deposition fluxes between sites. In site 1, the highest concentrations of PAHs in the particles were measured during the winter while in the leaf trees were measured during the summer. PMF model showed that sites 1 and 2 receive PAHs mainly from vehicle emissions and industrial activities, respectively. The accumulation of heavier compounds in soil and leaves via wet deposition was more evident in site 2. PAHs were mainly stored in the soil of site 1, contrasting with site 2, where they were retained in litter, which were attributed to disturbances of decomposer community and reduced decomposition rates.
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Affiliation(s)
| | | | - Marisa Domingos
- Instituto de Botânica, Caixa Postal, São Paulo, 68041, 04045-972, Brazil
| | - Mirian C S Rinaldi
- Instituto de Botânica, Caixa Postal, São Paulo, 68041, 04045-972, Brazil.
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Silva FB, Costa AC, Müller C, Almeida GM, Nascimento KJT, Batista PF, Vital RG, Silva DG, Megguer CA, Jakelaitis A, Domingos M. Searching for biomarkers of early detection of 2,4-D effects in a native tree species from the Brazilian Cerrado biome. J Environ Sci Health B 2022; 57:71-80. [PMID: 35114885 DOI: 10.1080/03601234.2022.2028528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Biodiversity in the Brazilian Cerrado biome has been declining sharply with the continued expansion of agriculture and the excessive use of herbicides. Thus, the aim of this study was to evaluate the morphophysiological and biochemical responses in Dipteryx alata plants to various doses of the herbicide 2,4-D. Specific biomarkers that characterize the phytoindicator potential of this species were determined. Gas exchange, chlorophyll a fluorescence, photosynthetic pigments, and the activities of antioxidant enzymes and cellulase were performed after 24, 96 and/or 396 hours after 2,4-D application (HAA). The herbicide caused higher antioxidant enzymatic activity 24 HAA and damage to the photosynthetic machinery after 96 HAA. Reduction in gas exchange, chlorophyll content, and photochemical traits were observed. Increased respiratory rates, non-photochemical quenching, and carotenoid concentrations in 2,4-D-treated plants were important mechanisms in the defense against the excess energy absorbed. Furthermore, the absence of leaf symptoms suggested tolerance of D. alata to 2,4-D. Nevertheless, changes in the photosynthetic and biochemical metabolism of D. alata are useful as early indicators of herbicide contamination, especially in the absence of visual symptoms. These results are important for early monitoring of plants in conserved areas and for preventing damage to sensitive species.
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Affiliation(s)
- Fábia Barbosa Silva
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
- Laboratório de Estudo de Plantas sob Estresse, Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, São Paulo, Brazil
| | - Alan Carlos Costa
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
| | - Caroline Müller
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
| | - Gabriel Martins Almeida
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
| | | | - Priscila Ferreira Batista
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
| | - Roberto Gomes Vital
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
| | - Danilo Guimarães Silva
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
| | - Clarice Aparecida Megguer
- Ciência e Tecnologia Goiano - Campus Morrinhos, Instituto Federal de Educação, Morrinhos, Goiás, Brazil
| | - Adriano Jakelaitis
- Ciência e Tecnologia - Campus Rio Verde, Instituto Federal Goiano de Educação, Rio Verde, Goiás, Brazil
| | - Marisa Domingos
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, São Paulo, São Paulo, Brazil
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Engela MRGDS, Furlan CM, Esposito MP, Fernandes FF, Carrari E, Domingos M, Paoletti E, Hoshika Y. Metabolic and physiological alterations indicate that the tropical broadleaf tree Eugenia uniflora L. is sensitive to ozone. Sci Total Environ 2021; 769:145080. [PMID: 33736256 DOI: 10.1016/j.scitotenv.2021.145080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/18/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Eugenia uniflora L. is an important fruit tree native to tropical South America that adapts to different habitats, thanks to its metabolic diversity and ability to adjust the leaf antioxidant metabolism. We hypothesized that this metabolic diversity would also enable E. uniflora to avoid oxidative damage and tolerate the enhanced ozone (O3) concentrations that have been registered in the (sub)tropics. We investigated whether carbohydrates, polyphenols and antioxidants are altered and markers of oxidative damage (ROS accumulation, alterations in leaf gas exchange, growth and biomass production) are detected in plants exposed to two levels of O3 (ambient air and twice elevated ozone level in a O3-FACE system for 75 days). Phytotoxic O3 dose above a threshold of 0 nmol m-2 s-1 (POD0) and accumulated exposure above 40 ppb (AOT40) were 3.6 mmol m-2 and 14.898 ppb h at ambient, and 4.7 mmol m-2 and 43.881 ppb h at elevated O3. Twenty-seven primary metabolites and 16 phenolic compounds were detected in the leaves. Contrary to the proposed hypothesis that tropical broadleaf trees are relatively O3 tolerant, we concluded that E. uniflora plants are sensitive to elevated O3 concentrations. Experimental POD0 values were lower than the critical levels for visible foliar O3, because of low stomatal conductance. In spite of this low stomatal O3 uptake, we found classic O3 injury, e.g. reduction in carbohydrates and fatty acids concentrations; non-significant changes in the polyphenol profile; inefficient antioxidant responses; increased contents of ROS and indicators of lipid peroxidation; reductions in stomatal conductance, net photosynthesis, root/shoot ratio and height growth. However, we also found some compensation mechanisms, e.g. increased leaf concentration of polyols for protecting the membranes, and increased leaf number for compensating the decline of photosynthetic rate. These results help filling the knowledge gap about tropical tree responses to O3.
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Affiliation(s)
| | - Claudia Maria Furlan
- Institute of Bioscience, University of São Paulo, Matão St. 257, 05508-090, SP, Brazil
| | | | - Francine Faia Fernandes
- Institute of Botany, Ecology Research Center, Avenue Miguel Estéfano, 3687, 04301-012, SP, Brazil
| | - Elisa Carrari
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Marisa Domingos
- Institute of Botany, Ecology Research Center, Avenue Miguel Estéfano, 3687, 04301-012, SP, Brazil
| | - Elena Paoletti
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Yasutomo Hoshika
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
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Nakazato RK, Lourenço IS, Esposito MP, Lima MEL, Ferreira ML, Campos RDOA, Rinaldi MCS, Domingos M. Trace metals at the tree-litter-soil- interface in Brazilian Atlantic Forest plots surrounded by sources of air pollution. Environ Pollut 2021; 268:115797. [PMID: 33065365 DOI: 10.1016/j.envpol.2020.115797] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 06/11/2023]
Abstract
Passive biomonitoring was applied in four Atlantic forest plots in southeast Brazil, affected by different levels of trace metal pollution (OP site located in Minas Gerais State and PEFI, PP and STG located in São Paulo State). Native tree species were selected as biomonitors according to their abundance in each plot and successional classification. Current trace metal concentrations in total suspended particles, leaves of non-pioneer (NPi) and pioneer (Pi) species, topsoil (0-20 cm) and litter and concentration ratios at the plant/soil interface were analyzed to verify the atmosphere-plant-soil interactions, basal concentrations, spatial variations and metal accumulation at the ecosystem level. Redundant analysis helped to identify similar characteristics of metal concentrations in PP and PEFI, which can be influenced by the high concentrations of elements related to anthropogenic inputs. Analysis of variance and multivariate statistics indicated that the trees of OP presented higher concentrations of Cr, Fe, Mn and Ni than those in the other sites. High enrichment of Cd, Fe, Ni in non-pioneer plants indicated that the PP forest (initially considered as the least polluted) has still been affected by metal pollution. Soil collected in STG was enriched by all elements, however these elements were low available for plant uptake. Metal deposited in leaves and litter was an important sink for soil cycling, nevertheless, these metals are not bioavailable in most cases. Non-pioneer tree species revealed to be more appropriate than pioneer species to indicate the current panorama of the contamination and bioavailability levels of trace metals in the tree community-litter-soil interface of the Atlantic forest remnants included in this study.
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Affiliation(s)
| | - Isabela S Lourenço
- Instituto de Botânica, Núcleo de Pesquisa Em Ecologia, PO Box 68041, 04045-972, SP, Brazil
| | | | | | | | | | - Mirian C S Rinaldi
- Instituto de Botânica, Núcleo de Pesquisa Em Ecologia, PO Box 68041, 04045-972, SP, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa Em Ecologia, PO Box 68041, 04045-972, SP, Brazil
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9
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Agathokleous E, Feng Z, Oksanen E, Sicard P, Wang Q, Saitanis CJ, Araminiene V, Blande JD, Hayes F, Calatayud V, Domingos M, Veresoglou SD, Peñuelas J, Wardle DA, De Marco A, Li Z, Harmens H, Yuan X, Vitale M, Paoletti E. Ozone affects plant, insect, and soil microbial communities: A threat to terrestrial ecosystems and biodiversity. Sci Adv 2020; 6:eabc1176. [PMID: 32851188 PMCID: PMC7423369 DOI: 10.1126/sciadv.abc1176] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/29/2020] [Indexed: 05/03/2023]
Abstract
Elevated tropospheric ozone concentrations induce adverse effects in plants. We reviewed how ozone affects (i) the composition and diversity of plant communities by affecting key physiological traits; (ii) foliar chemistry and the emission of volatiles, thereby affecting plant-plant competition, plant-insect interactions, and the composition of insect communities; and (iii) plant-soil-microbe interactions and the composition of soil communities by disrupting plant litterfall and altering root exudation, soil enzymatic activities, decomposition, and nutrient cycling. The community composition of soil microbes is consequently changed, and alpha diversity is often reduced. The effects depend on the environment and vary across space and time. We suggest that Atlantic islands in the Northern Hemisphere, the Mediterranean Basin, equatorial Africa, Ethiopia, the Indian coastline, the Himalayan region, southern Asia, and Japan have high endemic richness at high ozone risk by 2100.
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Affiliation(s)
- Evgenios Agathokleous
- Key Laboratory of Agrometeorology of Jiangsu Province, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Zhaozhong Feng
- Key Laboratory of Agrometeorology of Jiangsu Province, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Elina Oksanen
- Department of Environmental and Biological Sciences, University of Eastern Finland, POB 111, 80101 Joensuu, Finland
| | - Pierre Sicard
- ARGANS, 260 route du Pin Montard, 06410 Biot, France
| | - Qi Wang
- Key Laboratory of Agrometeorology of Jiangsu Province, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Costas J. Saitanis
- Lab of Ecology and Environmental Science, Agricultural University of Athens, Iera Odos 75, Athens 11855, Greece
| | - Valda Araminiene
- Institute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Girionys 53101 Kaunas District, Lithuania
| | - James D. Blande
- Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Felicity Hayes
- UK Centre for Ecology and Hydrology, Environment Centre Wales, Deiniol Road, Bangor, Gwynedd LL57 2UW, UK
| | - Vicent Calatayud
- Fundación CEAM, c/Charles R. Darwin 14, Parque Tecnológico, Paterna, Valencia 46980, Spain
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972 São Paulo, Brazil
| | - Stavros D. Veresoglou
- Freie Universität Berlin-Institut für Biologie, Dahlem Center of Plant Sciences, Plant Ecology, Berlin, Germany
| | - Josep Peñuelas
- Consejo Superior de Investigaciones Científicas, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Catalonia E-08193, Spain
- CREAF, Cerdanyola del Vallès, Catalonia E-08193, Spain
| | - David A. Wardle
- Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Alessandra De Marco
- Italian National Agency for New Technologies, Energy and the Environment (ENEA), C.R. Casaccia, S. Maria di Galeria, Rome I-00123, Italy
| | - Zhengzhen Li
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China
| | - Harry Harmens
- UK Centre for Ecology and Hydrology, Environment Centre Wales, Deiniol Road, Bangor, Gwynedd LL57 2UW, UK
| | - Xiangyang Yuan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Shuangqing Road 18, Haidian District, Beijing 100085, China
| | - Marcello Vitale
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome I-00185, Italy
| | - Elena Paoletti
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council of Italy (CNR), Via Madonna del Piano 10, I-50019 Sesto Fiorentino, Italy
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10
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Giampaoli P, Fernandes FF, Tavares AR, Domingos M, Cardoso-Gustavson P. Fluorescence emission spectra of target chloroplast metabolites (flavonoids, carotenoids, lipofuscins, pheophytins) as biomarkers of air pollutants and seasonal tropical climate. Environ Sci Pollut Res Int 2020; 27:25363-25373. [PMID: 32347483 DOI: 10.1007/s11356-020-08646-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
Chloroplasts have luminescent metabolites-chlorophyll being the most known one-whose fluorescence emission may be a useful tool to assess the physiological status of the plant. Some antioxidants (flavonoids and carotenoids), and byproducts of membrane rupture (lipofuscins) and chlorophyll degradation (pheophytins), are chloroplasts' fluorescent metabolites directly involved in plant response to environmental stressors and pollutants and may act as a biomarker of stress. Here we hypothesized that climatic variations and air pollutants induce alterations in the emission profile of chloroplasts' fluorescent metabolites in Tillandsia usneoides (Bromeliaceae). To test this hypothesis, an active biomonitoring study was performed during 2 years in five polluted sites located at the Metropolitan Region of Campinas (São Paulo State, Brazil), aiming to identify target chloroplasts' fluorescent metabolites acting as biomarkers of environmental stress. In situ identification and quantification of the intensity of the fluorescence emission from target metabolites (flavonoids, carotenoids, lipofuscins, and pheophytins) were performed by the observation of fresh leaf sections under confocal laser scanning microscopy. Changes in the profile of fluorescence emission were correlated with local climate and air pollution data. The fluorescence emissions of flavonoids and carotenoids varied seasonally, with significant influence of rainfall and NO2. Our results expand the use of T. usneoides as a bioindicator by using alterations in the fluorescence emission profile of chloroplast metabolites. This application may be especially interesting for NO2 biomonitoring.
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Affiliation(s)
- Patricia Giampaoli
- Programa de Pós-Graduação em Biodiversidade Vegetal e Meio Ambiente, Instituto de Botânica, Av. Miguel Stefano 3687, São Paulo, 04301-902, Brazil
| | - Francine Faia Fernandes
- Programa de Pós-Graduação em Biodiversidade Vegetal e Meio Ambiente, Instituto de Botânica, Av. Miguel Stefano 3687, São Paulo, 04301-902, Brazil
| | | | - Marisa Domingos
- Instituto de Botânica, Av. Miguel Stefano 3687, São Paulo, 04301-902, Brazil
| | - Poliana Cardoso-Gustavson
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Rua Arcturus 03, São Bernardo do Campo, 09606-070, Brazil.
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11
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Paoletti E, Feng Z, De Marco A, Hoshika Y, Harmens H, Agathokleous E, Domingos M, Mills G, Sicard P, Zhang L, Carrari E. Challenges, gaps and opportunities in investigating the interactions of ozone pollution and plant ecosystems. Sci Total Environ 2020; 709:136188. [PMID: 31887502 DOI: 10.1016/j.scitotenv.2019.136188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
| | - Zhaozhong Feng
- Nanjing University of Information Science and Technology, China
| | - Alessandra De Marco
- National Agency for New Technologies, Energy and Sustainable Economic Development, Italy
| | | | | | | | | | | | | | - Lu Zhang
- Northeast Agricultural University, China
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12
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Silva FB, Costa AC, Müller C, Nascimento KT, Batista PF, Vital RG, Megguer CA, Jakelaitis A, Domingos M. Dipteryx alata, a tree native to the Brazilian Cerrado, is sensitive to the herbicide nicosulfuron. Ecotoxicology 2020; 29:217-225. [PMID: 32030573 DOI: 10.1007/s10646-019-02154-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
The expansion of land use for agricultural interests and the excessive use of herbicides are among the causes of biodiversity losses in the Brazilian Cerrado biome. Therefore, we aimed to test the hypothesis that Dipteryx alata Vogel, a common species in this biome, is sensitive to nicosulfuron because of its high phytotoxicity. We evaluated physiological, biochemical and morphological responses in D. alata plants exposed to increasing doses of the herbicide. Young plants were transplanted to 10 L pots containing substrate composed of soil and sand (2:1) after fertilization. After an acclimation period, the following doses of nicosulfuron were applied: 0 (control), 6, 12, 24, 48, and 60 g a.e. ha-1. The experiment was conducted in a randomized block design factorial scheme with six doses of nicosulfuron, three evaluation times, and five replicates per treatment. The effects of the herbicide were assessed by measuring gas exchange, chlorophyll a fluorescence, photosynthetic pigments, membrane permeability, antioxidant enzymes and acetolactate synthase. Nicosulfuron altered the photosynthetic machinery and enzymatic metabolism of D. alata. Reductions in physiological traits, increased catalase and ascorbate peroxidase activities, enhanced malondialdehyde concentrations rate of electrolyte leakage and decreased acetolactate synthase activity in response to nicosulfuron all suggest that D. alata is sensitive to this herbicide.
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Affiliation(s)
- Fábia Barbosa Silva
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
- Laboratório de Estudo de Plantas sob Estresse, Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Caixa Postal 9, Piracicaba, SP, 13418-900, Brazil
| | - Alan Carlos Costa
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil.
| | - Caroline Müller
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Kelly Telles Nascimento
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Priscila Ferreira Batista
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Roberto Gomes Vital
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Clarice Aparecida Megguer
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Morrinhos, Caixa Postal 92, Morrinhos, GO, 75650-000, Brazil
| | - Adriano Jakelaitis
- Instituto Federal de Educação, Ciência e Tecnologia Goiano-Campus Rio Verde, Caixa Postal 66, Rio Verde, GO, 75901-9 70, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Caixa Postal 68041, São Paulo, SP, 04045-972, Brazil
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13
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Agathokleous E, Araminiene V, Belz RG, Calatayud V, De Marco A, Domingos M, Feng Z, Hoshika Y, Kitao M, Koike T, Paoletti E, Saitanis CJ, Sicard P, Calabrese EJ. A quantitative assessment of hormetic responses of plants to ozone. Environ Res 2019; 176:108527. [PMID: 31203049 DOI: 10.1016/j.envres.2019.108527] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/18/2019] [Accepted: 06/06/2019] [Indexed: 06/09/2023]
Abstract
Evaluations of ozone effects on vegetation across the globe over the last seven decades have mostly incorporated exposure levels that were multi-fold the preindustrial concentrations. As such, global risk assessments and derivation of critical levels for protecting plants and food supplies were based on extrapolation from high to low exposure levels. These were developed in an era when it was thought that stress biology is framed around a linear dose-response. However, it has recently emerged that stress biology commonly displays non-linear, hormetic processes. The current biological understanding highlights that the strategy of extrapolating from high to low exposure levels may lead to biased estimates. Here, we analyzed a diverse sample of published empirical data of approximately 500 stimulatory, hormetic-like dose-responses induced by ozone in plants. The median value of the maximum stimulatory responses induced by elevated ozone was 124%, and commonly <150%, of the background response (control), independently of species and response variable. The maximum stimulatory response to ozone was similar among types of response variables and major plant species. It was also similar among clades, between herbaceous and woody plants, between deciduous and evergreen trees, and between annual and perennial herbaceous plants. There were modest differences in the stimulatory response between genera and between families which may reflect different experimental designs and conditions among studies. The responses varied significantly upon type of exposure system, with open-top chambers (OTCs) underestimating the maximum stimulatory response compared to free-air ozone-concentration enrichment (FACE) systems. These findings suggest that plants show a generalized hormetic stimulation by ozone which is constrained within certain limits of biological plasticity, being highly generalizable, evolutionarily based, and maintained over ecological scales. They further highlight that non-linear responses should be taken into account when assessing the ozone effects on plants.
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Affiliation(s)
- Evgenios Agathokleous
- Institute of Ecology, Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Valda Araminiene
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Forestry, Girionys, Lithuania
| | - Regina G Belz
- University of Hohenheim, Agroecology Unit, Hans-Ruthenberg Institute, 70593, Stuttgart, Germany
| | - Vicent Calatayud
- Fundación CEAM, Charles R. Darwin 14, Parque Tecnológico, 46980, Paterna, Spain
| | - Alessandra De Marco
- Italian National Agency for New Technologies, Energy and the Environment (ENEA), C.R. Casaccia, SSPT-PVS, Via Anguillarese 301, S. Maria di Galeria, Rome, 00123, Italy
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972, SP, Brazil
| | - ZhaoZhong Feng
- Institute of Ecology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Yasutomo Hoshika
- National Council of Research, Via Madonna del Piano 10, Sesto Fiorentino, Florence, 50019, Italy
| | - Mitsutoshi Kitao
- Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI), Forest Research and Management Organization, 7 Hitsujigaoka, Sapporo, Hokkaido, 062-8516, Japan
| | - Takayoshi Koike
- Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Hokkaido, 060-8589, Japan
| | - Elena Paoletti
- National Council of Research, Via Madonna del Piano 10, Sesto Fiorentino, Florence, 50019, Italy
| | - Costas J Saitanis
- Lab of Ecology and Environmental Science, Agricultural University of Athens, Iera Odos 75, Athens, 11855, Greece
| | - Pierre Sicard
- ARGANS, 260 route du Pin Montard, 06410, Biot, France
| | - Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA
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Käffer MI, Domingos M, Lieske I, Vargas VMF. Predicting ozone levels from climatic parameters and leaf traits of Bel-W3 tobacco variety. Environ Pollut 2019; 248:471-477. [PMID: 30826610 DOI: 10.1016/j.envpol.2019.01.130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 01/31/2019] [Accepted: 01/31/2019] [Indexed: 06/09/2023]
Abstract
Air pollution has been identified as a major cause of environmental and human health damage. O3 is an oxidative pollutant that causes leaf symptoms in sensitive plants. This study aims to adjust a multilinear model for the monitoring of O3 in subtropical climatic conditions by associating O3 concentrations with measurements of morphological leaf traits in tobacco plants and different environmental variables. The plants were distributed into five areas (residential, urban or industrial) in the southern region of Brazil and exposed during 14 periods, of 14 days each, during the years of 2014 and 2015. The environmental variables and leaf traits during the exposure periods were described by mean, median, standard deviation and minimum and maximum values. Spearman correlation and multiple linear regression analyses were applied on data from exposure periods. Leaf injury index, leaf area, leaf dry mass, temperature, relative humidity, global solar radiation and accumulated rainfall were used in the regression analyses to select the best models for predicting O3 concentrations. Leaf injury characteristically caused by O3 was verified in all areas and periods of plant exposure. Higher values of leaf injury (24.5% and 27.7%) were registered in the 13th and 12th exposure periods during spring and in areas influenced by urban and industrial clutches. The VPD, temperature, global solar radiation and O3 were correlated to leaf injury. Environmental variables [leaf area, leaf dry mass, global solar radiation and accumulated rainfall] and primarily the VPD were fundamental to improve the adjustments done in the bioindicator model (R2 ≥ 0.73). Our research shows that biomonitoring employing the tobacco "Bel-W3" can be improved by measuring morphological leaf traits and meteorological parameters. Additionally, O3 fumigation experiment should be performed with biomonitoring as conducted in this study, which are useful in understanding the role of other environmental factors.
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Affiliation(s)
- Márcia I Käffer
- Programa de Pós-Graduação em Qualidade Ambiental, Universidade FEEVALE, RS 239, 2755, CEP 93352-000, Novo Hamburgo, RS, Brazil.
| | - Marisa Domingos
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | - Isadora Lieske
- Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
| | - Vera M F Vargas
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil
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15
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Gloria A, Frydman B, Lamas ML, Serra AC, Martorelli M, Coelho JF, Fonseca AC, Domingos M. The influence of poly(ester amide) on the structural and functional features of 3D additive manufactured poly(ε-caprolactone) scaffolds. Materials Science and Engineering: C 2019; 98:994-1004. [DOI: 10.1016/j.msec.2019.01.063] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 01/14/2019] [Accepted: 01/14/2019] [Indexed: 10/27/2022]
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16
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Fernandes FF, Esposito MP, da Silva Engela MRG, Cardoso-Gustavson P, Furlan CM, Hoshika Y, Carrari E, Magni G, Domingos M, Paoletti E. The passion fruit liana (Passiflora edulis Sims, Passifloraceae) is tolerant to ozone. Sci Total Environ 2019; 656:1091-1101. [PMID: 30625641 DOI: 10.1016/j.scitotenv.2018.11.425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/23/2018] [Accepted: 11/28/2018] [Indexed: 06/09/2023]
Abstract
Passiflora edulis Sims is a liana species of high economic interest and is an interesting model plant for understanding ozone action on disturbed vegetation. In this work we hypothesized that P. edulis has adaptive responses to oxidative stress that enable it to tolerate ozone damage based on its capacity to grow under a diversity of environmental conditions and to dominate disturbed areas. We exposed seedlings to three levels of ozone in a Free-Air Controlled Exposure (FACE) system (22, 41 and 58 ppb h AOT40 and 13.52, 17.24 and 20.62 mmol m-2 POD0, over 97 days) for identifying its tolerance mechanisms. Anatomical (leaf blade structure and fluorescence emission of chloroplast metabolites), physiological (leaf gas exchange, growth rate and biomass production) and biochemical (pigments, total sugars, starch, enzymatic and non-enzymatic antioxidant metabolites, reactive oxygen species and lipid peroxidation derivatives) responses were assessed. Ozone caused decreased total number of leaves, hyperplasia and hypertrophy of the mesophyll cells, and accelerated leaf senescence. However, O3 did not affect carbohydrates content, net photosynthetic rate, or total biomass production, indicating that the carboxylation efficiency and associated physiological processes were not affected. In addition, P. edulis showed higher leaf contents of ascorbic acid, glutathione (as well high ratio between their reduced and total forms), carotenoids, and flavonoids located in the chloroplast outer envelope membrane. Our results indicate that P. edulis is an O3-tolerant species due to morphological acclimation responses and an effective antioxidant defense system represented by non-enzymatic antioxidants, which maintained the cellular redox balance under ozone.
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Affiliation(s)
- Francine Faia Fernandes
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Miguel Stéfano Ave. 3687, 04045-972 SP, Brazil.
| | - Marisia Pannia Esposito
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Miguel Stéfano Ave. 3687, 04045-972 SP, Brazil
| | | | - Poliana Cardoso-Gustavson
- Universidade Federal do ABC, Centro de Ciências Naturais e Humanas, Arcturus St. 03, 09606-070 SBC, Brazil
| | - Claudia Maria Furlan
- Universidade de São Paulo, Instituto de Biociências, Matão St. 257, 05508-090 SP, Brazil
| | - Yasutomo Hoshika
- National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Elisa Carrari
- National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Giada Magni
- National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Miguel Stéfano Ave. 3687, 04045-972 SP, Brazil
| | - Elena Paoletti
- National Research Council (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
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Agathokleous E, Anav A, Araminiene V, De Marco A, Domingos M, Kitao M, Koike T, Manning WJ, Paoletti E, Saitanis CJ, Sicard P, Vitale M, Wang W, Calabrese EJ. Commentary: EPA's proposed expansion of dose-response analysis is a positive step towards improving its ecological risk assessment. Environ Pollut 2019; 246:566-570. [PMID: 30594897 DOI: 10.1016/j.envpol.2018.12.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 12/11/2018] [Accepted: 12/15/2018] [Indexed: 05/17/2023]
Abstract
The United States Environmental Protection Agency (US EPA) has recently proposed changes to strengthen the transparency of its pivotal regulatory science policy and procedures. In this context, the US EPA aims to enhance the transparency of dose-response data and models, proposing to consider for the first time non-linear biphasic dose-response models. While the proposed changes have the potential to lead to markedly improved ecological risk assessment compared to past and current approaches, we believe there remain open issues for improving the quality of ecological risk assessment, such as the consideration of adaptive, dynamic and interactive effects. Improved risk assessment including adaptive and dynamic non-linear models (beyond classic threshold models) can enhance the quality of regulatory decisions and the protection of ecological health. We suggest that other countries consider adopting a similar scientific-regulatory posture with respect to dose-response modeling via the inclusion of non-linear biphasic models, that incorporate the dynamic potential of biological systems to adapt (i.e., enhancing positive biological endpoints) or maladapt to low levels of stressor agents.
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Affiliation(s)
- Evgenios Agathokleous
- Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI), Forest Research and Management Organization, 7 Hitsujigaoka, Sapporo, Hokkaido, 062-8516, Japan; Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Hokkaido, 060-8589, Japan.
| | - Alessandro Anav
- National Council of Research, Via Madonna del Piano 10, Sesto Fiorentino, Florence, 50019, Italy
| | - Valda Araminiene
- Institute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Girionys, 53101, Kaunas district, Lithuania
| | - Alessandra De Marco
- Italian National Agency for New Technologies, Energy and the Environment (ENEA), C.R. Casaccia, S. Maria di Galeria, Rome, 00123, Italy
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972, SP, Brazil
| | - Mitsutoshi Kitao
- Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI), Forest Research and Management Organization, 7 Hitsujigaoka, Sapporo, Hokkaido, 062-8516, Japan
| | - Takayoshi Koike
- Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Hokkaido, 060-8589, Japan
| | - William J Manning
- Department of Plant, Soil and Insect Sciences, University of Massachusetts, Amherst, MA, USA
| | - Elena Paoletti
- National Council of Research, Via Madonna del Piano 10, Sesto Fiorentino, Florence, 50019, Italy
| | - Costas J Saitanis
- Lab of Ecology and Environmental Science, Agricultural University of Athens, Iera Odos 75, Athens, 11855, Greece
| | - Pierre Sicard
- ARGANS, 260 route du Pin Montard, Sophia Antipolis cedex, 06904, France
| | - Marcello Vitale
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome, 00185, Italy
| | - Wenjie Wang
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China; Northeast Forestry University, Harbin, 150040, China
| | - Edward J Calabrese
- Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA
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18
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Rotbaum Y, Puiu C, Rittel D, Domingos M. Quasi-static and dynamic in vitro mechanical response of 3D printed scaffolds with tailored pore size and architectures. Mater Sci Eng C Mater Biol Appl 2018; 96:176-182. [PMID: 30606523 DOI: 10.1016/j.msec.2018.11.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/22/2018] [Accepted: 11/15/2018] [Indexed: 12/22/2022]
Abstract
Scaffold-based Tissue Engineering represents the most promising approach for the regeneration of load bearing skeletal tissues, in particular bone and cartilage. Scaffolds play major role in this process by providing a physical template for cells to adhere and proliferate whilst ensuring an adequate biomechanical support at the defect site. Whereas the quasi static mechanical properties of porous polymeric scaffolds are well documented, the response of these constructs under high strain compressive rates remain poorly understood. Therefore, this study investigates, for the first time, the influence of pore size and geometry on the mechanical behaviour of Polycaprolactone (PCL) scaffolds under quasi static and dynamic conditions. 3D printed scaffolds with varied pore sizes and geometries were obtained using different filament distances (FD) and lay-down patterns, respectively. In particular, by fixing the lay-down pattern at 0/90° and varying the FD between 480 and 980 μm it was possible to generate scaffolds with square pores with dimensions in the range of 150-650 μm and porosities of 59-79%. On the other hand, quadrangular, hexagonal, triangular and complex pore geometries with constant porosity (approx. 70%) were obtained at a fixed FD of 680 μm and imposing four different lay-down patterns of 0/90, 0/60/120, 0/45/90/135 and 0/30/60/90/120/150°, respectively. The mechanical response of printed scaffolds was assessed under two different compression loading regimes spanning five distinct strain rates, from 10-2 to 2000 s-1, using two different apparatus: a conventional screw-driven testing machine (Instron 4483) and a Split Hopkinson pressure bar (SHPB) equipped with a set of A201 Flexi-force™ (FF) force sensors and a pulse shaper. Our results show that the mechanical properties of PCL scaffolds are not strain rate sensitive between 1300 and 2000 s-1 and these strongly depend on the pore size (porosity) rather than pore geometry. Those findings are extremely relevant for the engineering of bone tissue scaffolds with enhanced mechanical stability by providing new data describing the mechanical response of these constructs at high strain rates as well as the at the transition between quasi static and dynamic regimes.
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Affiliation(s)
- Y Rotbaum
- Faculty of Mechanical Engineering, Technion, 32000 Haifa, Israel
| | - C Puiu
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, UK
| | - D Rittel
- Faculty of Mechanical Engineering, Technion, 32000 Haifa, Israel
| | - M Domingos
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, UK.
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Nakazato RK, Esposito MP, Cardoso-Gustavson P, Bulbovas P, Pedroso ANV, de Assis PILS, Domingos M. Efficiency of biomonitoring methods applying tropical bioindicator plants for assessing the phytoxicity of the air pollutants in SE, Brazil. Environ Sci Pollut Res Int 2018; 25:19323-19337. [PMID: 29802616 DOI: 10.1007/s11356-018-2294-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 05/09/2018] [Indexed: 05/13/2023]
Abstract
In the tropical region, the greatest challenge of the biomonitoring approach is to establish linear relationships between biomarkers measured in plants and pollutant concentrations, since the bioindicator responses can be intensified or restricted by climatic variations. In southeastern Brazil, there are two regions affected by air pollution, where the Atlantic Forest remains and should be preserved. Consequently, both areas have been monitored by biomonitoring procedures using standardized and tropical plants. The industrial complex settled in Cubatão is one of the world's most famous examples of environmental pollution and degradation, with consequent decline of the Atlantic Forest. An oil refinery is among the most polluting industries in the Cubatão region. The other region is located in the Metropolitan Region of Campinas (MRC). The MRC has been affected by high levels of air pollutants originated from road traffic and is responsible for over 80% of CO, NOx, and hydrocarbon emissions and develops industrial activities that emit about 70% of the particulate matter present in the region. Both regions are distinguished by the climate, despite the fact that they are only about 130 km far from each other. Several studies carried out by our group in these regions aimed to establish the best native tree species and respective potential biomarkers for future assessment of pollution effects on tropical Forests. We present a critical review about the efficiency of native species compared to standardized bioindicator plants considering antioxidant defense system, nutrient accumulation, and microscopic aspects when exposed to atmospheric pollutants and climate.
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Affiliation(s)
- Ricardo Keiichi Nakazato
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, São Paulo, SP, 04301-902, Brazil.
| | - Marisia Pannia Esposito
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, São Paulo, SP, 04301-902, Brazil
| | - Poliana Cardoso-Gustavson
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Rua Arcturus 03, Jardim Antares, São Bernardo do Campo, SP, 09606-070, Brazil
| | - Patrícia Bulbovas
- Universidade Guarulhos, Praça Tereza Cristina 229, Centro, Guarulhos, SP, 07023-070, Brazil
| | - Andrea Nunes Vaz Pedroso
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, São Paulo, SP, 04301-902, Brazil
| | | | - Marisa Domingos
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, São Paulo, SP, 04301-902, Brazil
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Esposito MP, Nakazato RK, Pedroso ANV, Lima MEL, Figueiredo MA, Diniz AP, Kozovits AR, Domingos M. Oxidant-antioxidant balance and tolerance against oxidative stress in pioneer and non-pioneer tree species from the remaining Atlantic Forest. Sci Total Environ 2018; 625:382-393. [PMID: 29289786 DOI: 10.1016/j.scitotenv.2017.12.255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 05/03/2023]
Abstract
The extensive land occupation in Southeast Brazil has resulted in climatic disturbances and environmental contamination by air pollutants, threatening the Atlantic forest remnants that still exist in that region. Based on previous results, we assumed that pioneer tree species are potentially more tolerant against environmental oxidative stress than non-pioneer tree species from that Brazilian biome. We also assumed that reactive oxygen species (ROS) are accumulated in higher proportions in leaves of non-pioneer trees, resulting in changes in the oxidant-antioxidant balance and in more severe oxidative damage at the cellular level than in the leaves of pioneer trees. We tested these hypotheses by establishing the relationship between oxidants (ROS), changes in key antioxidants (among enzymatic and non-enzymatic compounds) and in a lipid peroxidation derivative in their leaves, as well as between ROS accumulation and oscillations in environmental stressors, thus permitting to discuss comparatively for the first time the oxidant-antioxidant balance and the tolerance capacity of tree species of the Atlantic Forest in SE Brazil. We confirmed that the non-pioneer tree species accumulated higher amounts of superoxide and hydrogen peroxide in palisade parenchyma and epidermis, showing a less effective antioxidant metabolism than the pioneer species. However, the non-pioneer species showed differing capacities to compensate the oxidative stress in both years of study, which appeared to be associated with the level of ROS accumulation, which was evidently higher in 2015 than in 2016. We also applied exploratory multivariate statistics, which revealed that the oscillations in these biochemical leaf responses in both functional groups coincided with the oscillations in both climatic conditions and air pollutants, seemingly showing that they had acclimated to the stressful oxidative environment observed and may perpetuate in the disturbed forest remnants located in SE Brazil.
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Affiliation(s)
| | | | | | - Marcos Enoque Leite Lima
- Instituto de Botânica, Núcleo de Pesquisa Curadoria do Herbário, PO Box 68041, 04045-972, SP, Brazil
| | - Maurílio Assis Figueiredo
- Universidade Federal de Ouro Preto, Instituto de Ciências Exatas e Biológicas, Departamento de Biodiversidade, Evolução e Meio Ambiente, PO Box 38, 35400-000, Ouro Preto, MG, Brazil
| | - Adriana Pedrosa Diniz
- Universidade Federal de Ouro Preto, Instituto de Ciências Exatas e Biológicas, Departamento de Biodiversidade, Evolução e Meio Ambiente, PO Box 38, 35400-000, Ouro Preto, MG, Brazil
| | - Alessandra Rodrigues Kozovits
- Universidade Federal de Ouro Preto, Instituto de Ciências Exatas e Biológicas, Departamento de Biodiversidade, Evolução e Meio Ambiente, PO Box 38, 35400-000, Ouro Preto, MG, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972, SP, Brazil
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Lima DAD, Müller C, Costa AC, Batista PF, Dalvi VC, Domingos M. Morphoanatomical and physiological changes in Bauhinia variegata L. as indicators of herbicide diuron action. Ecotoxicol Environ Saf 2017; 141:242-250. [PMID: 28359990 DOI: 10.1016/j.ecoenv.2017.03.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/15/2017] [Accepted: 03/22/2017] [Indexed: 05/22/2023]
Abstract
The wide use of the herbicide diuron has compromised surrounding uncultivated areas, resulting in acute and/or chronic damage to non-target plants. Thus, the aim of this research was to evaluate physiological and morphoanatomical responses in Bauhinia variegata L. plants to different doses of diuron. Seedlings of 90-day-old B. variegata were transplanted into 10liter pots. After an acclimation period (about 30 days), treatments consisting of different diuron doses were applied: 0 (control), 400, 800, 1600, and 2400g ai ha-1. The experiment was conducted in a randomized block design in a 5×5 factorial scheme with five doses of diuron five evaluation times, and five replicates per treatment. Anatomical and physiological injuries were observed in leaves of Bauhina variegata 10h after diuron application. Disruption of waxes was observed on both sides of the leaves of plants exposed since the lowest dose. Plasmolysis in cells were observed in treated leaves; more severe damage was observed in plants exposed to higher doses, resulting in rupture of epidermis. The diuron herbicide also caused gradual reduction in the gas exchange and chlorophyll fluorescence variables. Among the morphoanatomical and physiological variables analyzed, the non-invasive ones (e.g., ETR, YII, and Fv/Fm) may be used as biomarkers of diuron action in association with visible symptoms. In addition, changes in leaf blade waxes and chlorophyll parenchyma damage may also be considered additional leaf biomarkers of diuron herbicide action.
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Affiliation(s)
- Dêmily Andrômeda de Lima
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Rio Verde, Caixa Postal 66, 75901-970 Rio Verde, GO, Brazil.
| | - Caroline Müller
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Rio Verde, Caixa Postal 66, 75901-970 Rio Verde, GO, Brazil.
| | - Alan Carlos Costa
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Rio Verde, Caixa Postal 66, 75901-970 Rio Verde, GO, Brazil.
| | - Priscila Ferreira Batista
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Rio Verde, Caixa Postal 66, 75901-970 Rio Verde, GO, Brazil.
| | - Valdnéa Casagrande Dalvi
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Rio Verde, Caixa Postal 66, 75901-970 Rio Verde, GO, Brazil.
| | - Marisa Domingos
- Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Rio Verde, Caixa Postal 66, 75901-970 Rio Verde, GO, Brazil; Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil.
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Cardoso-Gustavson P, Fernandes FF, Alves ES, Victorio MP, Moura BB, Domingos M, Rodrigues CA, Ribeiro AP, Nievola CC, Figueiredo AMG. Tillandsia usneoides: A successful alternative for biomonitoring changes in air quality due to a new highway in São Paulo, Brazil. Environ Sci Pollut Res Int 2017; 24:12015. [PMID: 28424961 DOI: 10.1007/s11356-017-9033-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tillandsia usneoides is an aerial epiphytic bromeliad that absorbs water and nutrients directly from the atmosphere by scales covering its surface. We expanded the use of this species as a broader biomonitor based on chemical and structural markers to detect changes in air quality. The usefulness of such comprehensive approach was tested during the construction and opening of a highway (SP-21) in São Paulo State, Brazil. The biomonitoring study was performed from 2009 to 2012, thus comprising the period during construction and after the highway inauguration. Metal accumulation and structural alterations were assessed, in addition to microscopy analyses to understand the metal chelation in plant tissues and to assess the causes of alterations in the number and shape of scale cells. Altogether, our analyses support the use of this species as a wide biomonitor of air quality in urbanized areas.
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Affiliation(s)
- Poliana Cardoso-Gustavson
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Rua Arcturus 03, Jardim Antares, São Bernardo do Campo, SP, 09606-070, Brazil
| | - Francine Faia Fernandes
- Programa de Pós-Graduação em Biodiversidade Vegetal e Meio Ambiente, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, SP, 04301-902, Brazil
| | - Edenise Segala Alves
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, SP, 04301-902, Brazil
| | - Mariana Pereira Victorio
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, SP, 04301-902, Brazil
| | - Barbara Baesso Moura
- Programa de Pós-Graduação em Biodiversidade Vegetal e Meio Ambiente, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, SP, 04301-902, Brazil
| | - Marisa Domingos
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, SP, 04301-902, Brazil
| | - Caroline Albuquerque Rodrigues
- Laboratório de Análise por Ativação com Nêutrons, Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242, São Paulo, SP, 05508-000, Brazil
| | - Andreza Portella Ribeiro
- Mestrado em Cidades Inteligentes e Sustentáveis, Universidade Nove de Julho, Av. Francisco Matarazzo, 612, prédio C, Água Branca, SP, 05001 100, Brazil
| | - Catarina Carvalho Nievola
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, SP, 04301-902, Brazil
| | - Ana Maria G Figueiredo
- Laboratório de Análise por Ativação com Nêutrons, Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242, São Paulo, SP, 05508-000, Brazil.
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23
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Brandão SE, Bulbovas P, Lima MEL, Domingos M. Biochemical leaf traits as indicators of tolerance potential in tree species from the Brazilian Atlantic Forest against oxidative environmental stressors. Sci Total Environ 2017; 575:406-417. [PMID: 27750137 DOI: 10.1016/j.scitotenv.2016.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 10/01/2016] [Accepted: 10/01/2016] [Indexed: 06/06/2023]
Abstract
The tolerance potential against the oxidative injury in native plants from forest ecosystems affected by environmental stressors depends on how efficiently they keep their pro-oxidant/antioxidant balance. Great variations in plant tolerance are expected, highlighting the higher relevance of measuring biochemical leaf trait indicators of oxidative injury in species with similar functions in the forest than in single species. The use of this functional approach seems very useful in the Brazilian Atlantic Forest because it still holds high plant diversity and was the focus of this study. We aimed at determining the tolerance potential of tree species from the Atlantic Forest remnants in SE Brazil against multiple oxidative environmental stressors. We assumed that pioneer tree species are more tolerant against oxidative stress than non-pioneer tree species and that their tolerance potential vary spatially in response to distinct combined effects of oxidative environmental stressors. The study was carried out in three Atlantic Forest remnants, which differ in physiognomy, species composition, climatic characteristics and air pollution exposure. Leaves of three pioneer and three non-pioneer species were collected from each forest remnant during wet (January 2015) and dry periods (June 2015), for analyses of non-enzymatic and enzymatic antioxidants and oxidative injury indicators. Both hypotheses were confirmed. The pioneer tree species displayed biochemical leaf traits (e.g. high levels of ascorbic acid, glutathione and carotenoids and lower lipid peroxidation) that indicate their higher potential tolerance against oxidative environmental stressors than non-pioneer species. The biochemical leaf traits of both successional groups of species varied between the forest remnants, in response to a linear combination of oxidative environmental stressors, from natural (relative humidity and temperature) and anthropogenic sources (ozone and nitrogen dioxide).
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Affiliation(s)
- Solange E Brandão
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | - Patricia Bulbovas
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | - Marcos E L Lima
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil.
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Nakazato RK, Rinaldi MCS, Domingos M. Tropical trees: Are they good alternatives for biomonitoring the atmospheric level of potential toxic elements near to the Brazilian Atlantic Rainforest? Ecotoxicol Environ Saf 2016; 134P1:72-79. [PMID: 27591705 DOI: 10.1016/j.ecoenv.2016.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 08/17/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
The foliar accumulation and enrichment factor for 36 elements were studied in Psidium guajava 'Paluma' (fruit tropical tree) and Tibouchina pulchra Cogn. (native tree of the Atlantic rainforest) plants exposed around the city of Cubatão/Brazil, to propose a biomonitoring species in the Atlantic rainforest. The field experiments were conducted in six sites from November/2009 to April/2011. Parallel exposures of plants to filtered air in open-top chambers were performed to determine the background leaf concentrations of all elements. Both plants were enriched with elements (Ni, La, Fe, Ba, Al, Co, Pb, Hg and Mn) that characterize the industrial area of Cubatão, Brazil. P. guajava is a better option for biomonitoring toxic elements in Cubatão, since it was able to enrich higher metal levels than T. pulchra. Furthermore, P. guajava showed a better spatial and temporal variations in metal levels Cubatão.
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Affiliation(s)
- Ricardo K Nakazato
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil.
| | - Mirian C S Rinaldi
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil
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25
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Esposito MP, Pedroso ANV, Domingos M. Assessing redox potential of a native tree from the Brazilian Atlantic Rainforest: a successful evaluation of oxidative stress associated to a new power generation source of an oil refinery. Sci Total Environ 2016; 550:861-870. [PMID: 26851758 DOI: 10.1016/j.scitotenv.2016.01.196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/28/2016] [Accepted: 01/28/2016] [Indexed: 06/05/2023]
Abstract
The antioxidant responses in saplings of Tibouchina pulchra (a native tree from the Brazilian Atlantic Rainforest) exposed around an oil refinery in the city of Cubatão (SE Brazil), varied during the exchange of its power generation source, from boilers fueled with oil to a thermoelectric fueled with natural gas. The redox potential changed in response to an interaction of air pollution and meteorological parameters, indicating that the pro-oxidant/antioxidant balance was not reached after the exchange of the power generation system. The gain in environmental quality in the region was not achieved as expected due the technological modernization, at least relative to oxidative stressors. These conclusions were based on results of analyses of enzymatic antioxidants: superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR); non-enzymatic antioxidants: reduced, oxidized and total ascorbic acid (AsA, DHA, totAA) and glutathione (GSH, GSSG, totG), their redox state (AsA/totAA and GSH/totG) and an indicator of lipid peroxidation (MDA). We also applied exploratory multivariate statistics in order to verify if the temporal sequence of changes in the plant redox capacity coincided with changes in the profile of air pollution, climatic conditions or with their interactions and if the environmental benefits that would supposedly be promoted by the mentioned exchange of power generation system were achieved in the region.
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Affiliation(s)
- Marisia Pannia Esposito
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972 São Paulo, SP, Brazil.
| | - Andrea Nunes Vaz Pedroso
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972 São Paulo, SP, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972 São Paulo, SP, Brazil
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Giampaoli P, Wannaz ED, Tavares AR, Domingos M. Suitability of Tillandsia usneoides and Aechmea fasciata for biomonitoring toxic elements under tropical seasonal climate. Chemosphere 2016; 149:14-23. [PMID: 26844661 DOI: 10.1016/j.chemosphere.2016.01.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 12/06/2015] [Accepted: 01/19/2016] [Indexed: 06/05/2023]
Abstract
Aechmea fasciata was evaluated for the first time as a biomonitor of toxic elements, in comparison to the biomonitoring capacity of Tillandsia usneoides, a well-established biomonitor bromeliad species. Plants of both species were exposed to air pollutants from industrial, urban, and agricultural sources, under the tropical seasonal climate, from June/2011 to April/2013, in five sites of São Paulo State, Brazil, for 8 consecutive exposure periods of 12 weeks each. The levels of essential and non-essential elements, including trace metals, were quantified at the end of each exposure. T. usneoides and A. fasciata indicated N, Fe, Zn, Co, Cr, and V as air contaminants in the studied sites, during wet and dry seasons and both species were recommended for qualitative biomonitoring. Concentration levels of N, Ca, S, Fe, Zn, Cu, B, Co, and Ni were significantly higher in T. usneoides than in A. fasciata. However, A. fasciata showed a higher effective retention capacity of Ni, Pb, V, Cu, Fe, Cr, and Co during field exposure, as indicated by the estimate of enrichment factor relative to basal concentrations. This species is more suitable for detecting the atmospheric pollution level of those metals than the T. usneoides. Both species indicated adequately the seasonal differences in the pollution levels of several elements, but T. usneoides presented higher ability for biomonitoring the spatial variations and for indicating more properly the sources of each element in the studied region than the A. fasciata.
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Affiliation(s)
| | - Eduardo D Wannaz
- Multidisciplinary Institute of Plant Biology, National University of Córdoba, Vélez Sarsfield Avenue 1611, X5016CGA Córdoba, Argentina.
| | - Armando R Tavares
- Instituto de Botânica, P.O. Box 68041, 01061-970 São Paulo, SP, Brazil.
| | - Marisa Domingos
- Instituto de Botânica, P.O. Box 68041, 01061-970 São Paulo, SP, Brazil.
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Dias APL, Rinaldi MCS, Domingos M. Foliar accumulation of polycyclic aromatic hydrocarbons in native tree species from the Atlantic Forest (SE-Brazil). Sci Total Environ 2016; 544:175-184. [PMID: 26657363 DOI: 10.1016/j.scitotenv.2015.11.092] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/19/2015] [Accepted: 11/19/2015] [Indexed: 06/05/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are toxic to living organisms. They can accumulate on foliar surfaces due to their affinity with apolar organic compounds, which enables the use of native plant species as sentinels of atmospheric PAH deposition in polluted ecosystems. The present study extends the knowledge about this subject in the tropical region by focusing on the PAH accumulation in the foliage of dominant tree species (Astronium graveolens, Croton floribundus, Piptadenia gonoacantha) in four remnants of Semi-deciduous Atlantic Forest surrounded by diversified sources of PAHs and located in the cities of Campinas, Paulínia, Holambra and Cosmópilis (central-eastern part of São Paulo State, SE-Brazil). Leaves of the tree species were collected in the forest remnants during the wet and dry seasons (2011 to 2013). All samples were analyzed by high performance liquid chromatography (HPLC) coupled to a fluorescence detector for identification of 14 PAHs. The native tree species showed distinct capacities to accumulate PAHs. All of them accumulated proportionally more light PAHs than heavy PAHs, mainly during the dry period. P. gonoacantha was the most effective accumulator species. Higher accumulations of most of the PAHs occurred during the dry periods. The predominance of moderately (1 ≤ EF < 5) to highly enriched (EF ≥ 5) leaf samples of P. gonoacantha with regard to BaA and PHE in all of the forest remnants indicated that vehicular sources were widely distributed in the entire region. The predominance of the moderate to high enrichment of ACE in leaf samples from the forest remnants located in Paulínia, Holambra and Cosmópolis indicated that they were also affected by emissions from petrochemical industries.
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Affiliation(s)
- Ana Paula L Dias
- Instituto de Botânica, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil.
| | - Mirian C S Rinaldi
- Instituto de Botânica, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil
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Cardoso-Gustavson P, Fernandes FF, Alves ES, Victorio MP, Moura BB, Domingos M, Rodrigues CA, Ribeiro AP, Nievola CC, Figueiredo AMG. Tillandsia usneoides: a successful alternative for biomonitoring changes in air quality due to a new highway in São Paulo, Brazil. Environ Sci Pollut Res Int 2016; 23:1779-1788. [PMID: 26396016 DOI: 10.1007/s11356-015-5449-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/16/2015] [Indexed: 06/05/2023]
Abstract
Tillandsia usneoides is an aerial epiphytic bromeliad that absorbs water and nutrients directly from the atmosphere by scales covering its surface. We expanded the use of this species as a broader biomonitor based on chemical and structural markers to detect changes in air quality. The usefulness of such comprehensive approach was tested during the construction and opening of a highway (SP-21) in São Paulo State, Brazil. The biomonitoring study was performed from 2009 to 2012, thus comprising the period during construction and after the highway inauguration. Metal accumulation and structural alterations were assessed, in addition to microscopy analyses to understand the metal chelation in plant tissues and to assess the causes of alterations in the number and shape of scale cells. Altogether, our analyses support the use of this species as a wide biomonitor of air quality in urbanized areas.
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Affiliation(s)
- Poliana Cardoso-Gustavson
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Rua Arcturus 03, Jardim Antares, São Bernardo do Campo, 09606-070, SP, Brazil.
| | - Francine Faia Fernandes
- Programa de Pós-Graduação em Biodiversidade Vegetal e Meio Ambiente, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, 04301-902, SP, Brazil.
| | - Edenise Segala Alves
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, 04301-902, SP, Brazil.
| | - Mariana Pereira Victorio
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, 04301-902, SP, Brazil.
| | - Barbara Baesso Moura
- Programa de Pós-Graduação em Biodiversidade Vegetal e Meio Ambiente, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, 04301-902, SP, Brazil.
| | - Marisa Domingos
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, 04301-902, SP, Brazil.
| | - Caroline Albuquerque Rodrigues
- Laboratório de Análise por Ativação com Nêutrons, Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242, 05508-000, São Paulo, SP, Brazil.
| | - Andreza Portella Ribeiro
- Mestrado em Cidades Inteligentes e Sustentáveis, Universidade Nove de Julho, Av. Francisco Matarazzo, 612, prédio C, Água Branca, 05001 100, SP, Brazil.
| | - Catarina Carvalho Nievola
- Núcleo de Pesquisa em Anatomia, Instituto de Botânica, Av. Miguel Stefano 3687, Água Funda, 04301-902, SP, Brazil.
| | - Ana Maria G Figueiredo
- Laboratório de Análise por Ativação com Nêutrons, Instituto de Pesquisas Energéticas e Nucleares, Av. Prof. Lineu Prestes, 2242, 05508-000, São Paulo, SP, Brazil.
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Bulbovas P, Camargo CZS, Domingos M. Ryegrass cv. Lema and guava cv. Paluma biomonitoring suitability for estimating nutritional contamination risks under seasonal climate in Southeastern Brazil. Ecotoxicol Environ Saf 2015; 118:149-157. [PMID: 25938695 DOI: 10.1016/j.ecoenv.2015.04.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 04/17/2015] [Accepted: 04/20/2015] [Indexed: 06/04/2023]
Abstract
The risks posed by nutrient deposition due to air pollution on ecosystems and their respective services to human beings can be appropriately estimated by bioindicator plants when they are well acclimated to the study region environmental conditions. This assumption encouraged us to comparatively evaluate the accumulation potential of ryegrass cv. Lema and guava cv. Paluma macro and micronutrients. We also indicated the most appropriate species for biomonitoring nutrient contamination risks in tropical areas of Southeastern Brazil, which are characterized by marked dry and wet seasons and complex mixtures of air pollutants from different sources (industries, vehicle traffic and agriculture). The study was conducted in 14 sites with different neighboring land uses, within the Metropolitan Region of Campinas, central-eastern region of São Paulo State. The exposure experiments with ryegrass and guava were consecutively repeated 40 (28 days each) and 12 (84 days each) times, respectively, from Oct/2010 to Sept/2013. Macro and micronutrients were analyzed and background concentrations and enrichment ratios (ER) were estimated to classify the contamination risk within the study region. Significantly higher ER suggested that ryegrass were the most appropriate accumulator species for N, S, Mg, Fe, Mn, Cu and Zn deposition and guava for K, Ca, P and B deposition. Based on these biomonitoring adjustments, we concluded that the nutrient deposition was spatially homogeneous in the study area, but clear seasonality in the contamination risk by nutritional inputs was evidenced. Significantly higher contamination risk by S, Fe, K and B occurred during the dry season and enhanced contamination risk by Mn, Cu and Zn were highlighted during the wet season. Distinctly high contamination risk was estimated for S, Fe and Mn in several exposure experiments.
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Affiliation(s)
- Patricia Bulbovas
- Instituto de Botânica, Caixa Postal 68041, São Paulo 04045-972, SP, Brazil.
| | - Carla Z S Camargo
- Instituto de Botânica, Caixa Postal 68041, São Paulo 04045-972, SP, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Caixa Postal 68041, São Paulo 04045-972, SP, Brazil
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Domingos M, Bulbovas P, Camargo CZS, Aguiar-Silva C, Brandão SE, Dafré-Martinelli M, Dias APL, Engela MRGS, Gagliano J, Moura BB, Alves ES, Rinaldi MCS, Gomes EPC, Furlan CM, Figueiredo AMG. Searching for native tree species and respective potential biomarkers for future assessment of pollution effects on the highly diverse Atlantic Forest in SE-Brazil. Environ Pollut 2015; 202:85-95. [PMID: 25818087 DOI: 10.1016/j.envpol.2015.03.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/02/2015] [Accepted: 03/08/2015] [Indexed: 06/04/2023]
Abstract
This study summarizes the first effort to search for bioindicator tree species and respective potential biomarkers for future assessment of potential mixed pollution effects on the highly diverse Atlantic Forest in SE-Brazil. Leaves of the three most abundant species inventoried in a phytosociological survey (Croton floribundus, Piptadenia gonoacantha and Astronium graveolens) were collected in four forest remnants during winter and summer (2012). Their potential bioindicator attributes were highlighted using a screening of morphological, chemical and biochemical markers. The leaf surface structure and/or epicuticular wax composition pointed the accumulator properties of C. floribundus and P. gonoacantha. C. floribundus is a candidate for assessing potential accumulation of Cu, Cd, Mn, Ni, S and Zn. P. gonoacantha is a candidate to monitor polycyclic aromatic hydrocarbons. Increased levels of secondary metabolites and decreased antioxidant capacity in leaves of A. graveolens may support its value as a bioindicator for oxidative pollutants by visible dark stipplings.
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Affiliation(s)
- Marisa Domingos
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil.
| | - Patricia Bulbovas
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | - Carla Z S Camargo
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | | | - Solange E Brandão
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | | | - Ana Paula L Dias
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | | | - Janayne Gagliano
- Universidade de São Paulo, Rua do Matão 277, 05508-090, São Paulo, Brazil
| | - Barbara B Moura
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | - Edenise S Alves
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | | | - Eduardo P C Gomes
- Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, Brazil
| | - Claudia M Furlan
- Universidade de São Paulo, Rua do Matão 277, 05508-090, São Paulo, Brazil
| | - Ana Maria G Figueiredo
- Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN - SP), Av. Professor Lineu Prestes 2242, 05508-000, São Paulo, Brazil
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Pasqualetti CB, Sandrin CZ, Pedroso ANV, Domingos M, Figueiredo-Ribeiro RCL. Fructans, ascorbate peroxidase, and hydrogen peroxide in ryegrass exposed to ozone under contrasting meteorological conditions. Environ Sci Pollut Res Int 2015; 22:4771-4779. [PMID: 25583262 DOI: 10.1007/s11356-014-3965-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 12/08/2014] [Indexed: 06/04/2023]
Abstract
Ozone (O3) is the most abundant tropospheric oxidant as well as an important component of photochemical pollution. Once inside the plant, ozone can produce reactive oxygen species that change the antioxidative pool and the carbohydrate metabolism. The current study aimed to analyze whether the contents and the composition of the fructan, the ascorbate peroxidase activity, and the H2O2 accumulation were changed in Lolium multiflorum ssp. italicum cv. Lema plants as response to short-term exposure to ozone and/or to different meteorological conditions, in two contrasting seasons (winter and summer). Results showed that higher solar radiation tends to decrease fructose content and, along with temperature, increases the ascorbate peroxidase (APX) activity. Such activity and levels of fructans practically did not vary during the time the experiment was being done, but APX daylight variation was modified by the ozone. Thus, the higher levels of this pollutant decreased the APX activity and increased fructose content, as well as changed the size of the fructan chains. Hydrogen peroxide (H2O2) accumulation was higher in plants that were fumigated with ozone when compared to the control, and it decreased throughout the day. As a conclusion, fructan contents increased when the APX activity decreased. It suggested that fructans could also help the defense system when there is a reduction on the APX activity in the plant.
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Affiliation(s)
- C B Pasqualetti
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, Caixa Postal 68041, 04045-972, São Paulo, SP, Brazil
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Nakazato RK, Rinaldi MCS, Domingos M. Will technological modernization for power generation at an oil refinery diminish the risks from air pollution to the Atlantic Rainforest in Cubatão, SE Brazil? Environ Pollut 2015; 196:489-496. [PMID: 24908362 DOI: 10.1016/j.envpol.2014.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 04/30/2014] [Accepted: 05/09/2014] [Indexed: 06/03/2023]
Abstract
We assessed the level of atmospheric contamination by S, N and metals before, during and after the installation of a new thermoelectric plant that provides power to an oil refinery in Cubatão, SE Brazil. We measured the foliar accumulation in Lolium multiflorum "Lema" with the aim of evaluating risks to the Atlantic Rainforest that grows in the region. Al, Co, Cr, Cu, K, N, Ni, S, V and Zn were appropriate markers of the new air contamination profile associated with the modern technology. With the exception of V, the leaf contents of these elements significantly increased between the pre-operation to post-operation phases (Al, Co, N, K, S), or only during the transition phase (Zn, Cu, Cr, Ni), and returned to the previous levels after the total shutdown of the old system. Therefore, the expected environmental gain was not achieved with the installation of the new technology.
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Affiliation(s)
- Ricardo K Nakazato
- Instituto de Botânica, Post-Graduate Program in Plant Biodiversity and Environment, Caixa Postal 68041, 04045-972, São Paulo, SP, Brazil
| | - Mirian C S Rinaldi
- Instituto de Botânica, Research Center in Ecology, Av. Miguel Stéfano, 3687, Água Funda, Caixa Postal 68041, 04045-972, São Paulo, SP, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Research Center in Ecology, Av. Miguel Stéfano, 3687, Água Funda, Caixa Postal 68041, 04045-972, São Paulo, SP, Brazil.
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Bulbovas P, Souza SR, Esposito JBN, Moraes RM, Alves ES, Domingos M, Azevedo RA. Assessment of the ozone tolerance of two soybean cultivars (Glycine max cv. Sambaíba and Tracajá) cultivated in Amazonian areas. Environ Sci Pollut Res Int 2014; 21:10514-24. [PMID: 24781331 DOI: 10.1007/s11356-014-2934-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 04/15/2014] [Indexed: 05/23/2023]
Abstract
Brazilian soybean cultivars (Glycine max Sambaíba and Tracajá) routinely grown in Amazonian areas were exposed to filtered air (FA) and filtered air enriched with ozone (40 and 80 ppb, 6 h/day for 5 days) to assess their level of tolerance to this pollutant by measuring changes in key biochemical, physiological, and morphological indicators of injury and in enzymatic and non-enzymatic antioxidants. Sambaíba plants were more sensitive to ozone than Tracajá plants, as revealed by comparing indicator injury responses and antioxidant stimulations. Sambaíba exhibited higher visible leaf injury, higher stomatal conductance, and a severe decrease in the carbon assimilation rate. Higher ozone level (80 ppb) caused an increase in cell death in both cultivars. Levels of malondialdehyde and hydrogen peroxide also increased in Tracajá exposed under 80 ppb. Sambaíba plants exhibited decreases in ascorbate and glutathione levels and in enzymatic activities associated with these antioxidants. The higher tolerance of the Tracajá soybean appeared to be indicated by reduced physiological injuries and lower stomatal conductance, which might decrease the influx of ozone and enhance oxidation-reduction reactions involving catalase, ascorbate peroxidase, ascorbate, and glutathione, most likely stimulated by higher hydrogen peroxide.
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Affiliation(s)
- P Bulbovas
- Núcleo de Pesquisa em Ecologia, Instituto de Botânica, São Paulo, SP, CEP 04045-972, Brazil,
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Moura BB, Alves ES, de Souza SR, Domingos M, Vollenweider P. Ozone phytotoxic potential with regard to fragments of the Atlantic Semi-deciduous Forest downwind of Sao Paulo, Brazil. Environ Pollut 2014; 192:65-73. [PMID: 24892227 DOI: 10.1016/j.envpol.2014.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 05/02/2014] [Accepted: 05/03/2014] [Indexed: 06/03/2023]
Abstract
In the Metropolitan Region of Campinas (MRC), Brazil, high levels of primary pollutants contribute to ozone (O3) formation. However, little is known regarding the O3 effects in the tropics. Objectives in this study were to characterize the present levels of O3 pollution and to evaluate the relevance of current concentration-based indices for assessing the phytotoxic potential of O3. Changes in O3 concentrations and precursors at 5 monitoring stations within towns of MRC were analyzed. The daily O3 profile was typical for urban sites and showed little yearly variation. Given the permanently foliated forest canopy, yearly rather than seasonal O3 indices were thus more appropriate for estimating the effective ozone dose. With yearly SUM00, SUM60 and AOT40 of 156, 16 and 14 ppm h and confirmed by evidence of O3 injury in foliage, oxidative stress in the MRC has reached levels high enough to affect trees from the Atlantic Semi-deciduous Forest.
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Affiliation(s)
- Bárbara B Moura
- Instituto de Botânica, Caixa Postal 3005, 01061-970 São Paulo, SP, Brazil.
| | - Edenise S Alves
- Instituto de Botânica, Caixa Postal 3005, 01061-970 São Paulo, SP, Brazil
| | - Silvia R de Souza
- Instituto de Botânica, Caixa Postal 3005, 01061-970 São Paulo, SP, Brazil
| | - Marisa Domingos
- Instituto de Botânica, Caixa Postal 3005, 01061-970 São Paulo, SP, Brazil
| | - Pierre Vollenweider
- Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zuercherstrasse 111, CH-8903 Birmensdorf, Switzerland
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Esposito MP, Domingos M. Establishing the redox potential of Tibouchina pulchra (Cham.) Cogn., a native tree species from the Atlantic Rain Forest, in the vicinity of an oil refinery in SE Brazil. Environ Sci Pollut Res Int 2014; 21:5484-5495. [PMID: 24407781 DOI: 10.1007/s11356-013-2453-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 12/10/2013] [Indexed: 06/03/2023]
Abstract
The present study aimed to establish the seasonal variations in the redox potential ranges of young Tibouchina pulchra plants growing in the Cubatão region (SE Brazil) under varying levels of oxidative stress caused by air pollutants. The plants were exposed to filtered air (FA) and non-filtered air (NFA) in open-top chambers installed next to an oil refinery in Cubatão during six exposure periods of 90 days each, which included the winter and summer seasons. After exposure, several analyses were performed, including the foliar concentrations of ascorbic acid and glutathione in its reduced (AsA and GSH), total (totAA and totG) and oxidized forms (DHA and GSSG); their ratios (AsA/totAA and GSH/totG); the enzymatic activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT) and glutathione reductase (GR); and the content of malondialdehyde (MDA). The range of antioxidant responses in T. pulchra plants varied seasonally and was stimulated by high or low air pollutant concentrations and/or air temperatures. Glutathione and APX were primarily responsible for increasing plant tolerance to oxidative stress originating from air pollution in the region. The high or low air temperatures mainly affected enzymatic activity. The content of MDA increased in response to increasing ozone concentration, thus indicating that the pro-oxidant/antioxidant balance may not have been reached.
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Affiliation(s)
- Marisia Pannia Esposito
- Instituto de Botânica, Núcleo de Pesquisa em Ecologia, PO Box 68041, 04045-972, São Paulo, SP, Brazil,
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Domingos M, Intranuovo F, Russo T, De Santis R, Gloria A, Ambrosio L, Ciurana J, Bartolo P. The first systematic analysis of 3D rapid prototyped poly(ε-caprolactone) scaffolds manufactured through BioCell printing: the effect of pore size and geometry on compressive mechanical behaviour and in vitro hMSC viability. Biofabrication 2013; 5:045004. [PMID: 24192056 DOI: 10.1088/1758-5082/5/4/045004] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Novel additive manufacturing processes are increasingly recognized as ideal techniques to produce 3D biodegradable structures with optimal pore size and spatial distribution, providing an adequate mechanical support for tissue regeneration while shaping in-growing tissues. With regard to the mechanical and biological performances of 3D scaffolds, pore size and geometry play a crucial role. In this study, a novel integrated automated system for the production and in vitro culture of 3D constructs, known as BioCell Printing, was used only to manufacture poly(ε-caprolactone) scaffolds for tissue engineering; the influence of pore size and shape on their mechanical and biological performances was investigated. Imposing a single lay-down pattern of 0°/90° and varying the filament distance, it was possible to produce scaffolds with square interconnected pores with channel sizes falling in the range of 245-433 µm, porosity 49-57% and a constant road width. Three different lay-down patterns were also adopted (0°/90°, 0°/60/120° and 0°/45°/90°/135°), thus resulting in scaffolds with quadrangular, triangular and complex internal geometries, respectively. Mechanical compression tests revealed a decrease of scaffold stiffness with the increasing porosity and number of deposition angles (from 0°/90° to 0°/45°/90°/135°). Results from biological analysis, carried out using human mesenchymal stem cells, suggest a strong influence of pore size and geometry on cell viability. On the other hand, after 21 days of in vitro static culture, it was not possible to detect any significant variation in terms of cell morphology promoted by scaffold topology. As a first systematic analysis, the obtained results clearly demonstrate the potential of the BioCell Printing process to produce 3D scaffolds with reproducible well organized architectures and tailored mechanical properties.
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Affiliation(s)
- M Domingos
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria (IPL), Leiria, Portugal
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Sandrin CZ, Figueiredo-Ribeiro RDCL, Delitti WBC, Domingos M. Short-term changes of fructans in ryegrass (Lolium multiflorum 'Lema') in response to urban air pollutants and meteorological conditions. Ecotoxicol Environ Saf 2013; 96:80-85. [PMID: 23871204 DOI: 10.1016/j.ecoenv.2013.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 06/14/2013] [Accepted: 06/21/2013] [Indexed: 06/02/2023]
Abstract
We investigated whether the fructan content, a storage carbohydrate, of Lolium multiflorum 'Lema' plants grown in a subtropical urban environment characterized by typical diurnal profiles of air pollutants and meteorological conditions changed over the course of a day during different seasons. Plants were collected every 2h on the last day of each two-month seasonal field experiment and separated into shoot (stubble or stubble+leaf blades) and roots for carbohydrate analyses and biomass determination. Diurnal contents of total fructose in the stubbles increased with high temperatures. In the roots, fructose accumulation showed a positive relation with hourly variations of both temperature and particulate matter and a negative relation with irradiance and SO2. Seasonal variation in shoot and root biomasses coincided with the seasonal variation of total fructose and were negatively affected by relative humidity and SO2, respectively. We concluded that hourly changes of fructans over the course of a day may increase the ability of L. multiflorum to tolerate short-term oscillations in weather and air pollution commonly observed in the subtropical urban environment, increasing its efficiency in monitoring air quality.
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Ferreira ML, Domingos M. Seasonal characterization of antioxidant responses in plants of Ipomoea nil cv. Scarlet O'Hara. BRAZ J BIOL 2013; 72:831-7. [PMID: 23295511 DOI: 10.1590/s1519-69842012000500008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 12/01/2011] [Indexed: 12/24/2022] Open
Abstract
Reactive oxygen species can be produced in leaf cells during normal aerobic metabolism or in a variety of exogenous factors, which may cause oxidative damage to plants, unless they have an efficient antioxidant defense system, consisting of enzymatic and non-enzymatic substances. This work raised the hypothesis that plants of Ipomoea nil cv. Scarlet O'Hara, a native species and ornamental vine of the tropics, might tolerate oxidative stress factors imposed by natural fluctuations in weather conditions through changes in the antioxidant profile.The objective of this study was to determine the variations in three leaf antioxidants in plants growing inside a greenhouse without air pollutants and exposed to varying meteorological conditions throughout the four seasons of the year and to observe if such variations are related to the oscillations in meteorological factors. Four experimental campaigns were carried out, one in each season of 2006. Each campaign lasted 28 days and started with 45 plants. Ascorbic acid (AA) concentrations and superoxide dismutase (SOD) and peroxidase (POD) activities were determined in leaves of five plants in nine sampling days of each campaign. The antioxidant responses oscillated throughout the year. The highest values were found during the spring. This seasonal antioxidant profile was associated to variations in temperature, relative humidity and global radiation. Plants of this cultivar may then tolerate oxidative stress naturally imposed by meteorological conditions.
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Affiliation(s)
- M L Ferreira
- Universidade Nove de Julho - UNINOVE, Av. Adolfo Pinto, 109, Barra Funda, CEP 01156-050, São Paulo, SP, Brazil.
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Domingos M, Intranuovo F, Gloria A, Gristina R, Ambrosio L, Bártolo PJ, Favia P. Improved osteoblast cell affinity on plasma-modified 3-D extruded PCL scaffolds. Acta Biomater 2013; 9:5997-6005. [PMID: 23313115 DOI: 10.1016/j.actbio.2012.12.031] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 12/22/2012] [Accepted: 12/30/2012] [Indexed: 11/19/2022]
Abstract
Cellular adhesion and proliferation inside three-dimensional synthetic scaffolds represent a major challenge in tissue engineering. Besides the surface chemistry of the polymers, it is well recognized that scaffold internal architecture, namely pore size/shape and interconnectivity, has a strong effect on the biological response of cells. This study reports for the first time how polycaprolactone (PCL) scaffolds with controlled micro-architecture can be effectively produced via bioextrusion and used to enhance the penetration of plasma deposited species. Low-pressure nitrogen-based coatings were employed to augment cell adhesion and proliferation without altering the mechanical properties of the structures. X-ray photoelectron spectroscopy carried out on different sections of the scaffolds indicates a uniform distribution of nitrogen-containing groups throughout the entire porous structure. In vitro biological assays confirm that plasma deposition sensitively promotes the activity of Saos-2 osteoblast cells, leading to a homogeneous colonization of the PCL scaffolds.
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Affiliation(s)
- M Domingos
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Portugal
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Ferreira ML, Nobre Esposito JB, de Souza SR, Domingos M. Critical analysis of the potential of Ipomoea nil'Scarlet O'Hara' for ozone biomonitoring in the sub-tropics. ACTA ACUST UNITED AC 2012; 14:1959-67. [PMID: 22706014 DOI: 10.1039/c2em30026e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study aimed to analyze critically the potential of Ipomoea nil'Scarlet O'Hara' for O(3) biomonitoring in the sub-tropics. Four field experiments (one in each season of 2006) were carried out in a location of the city of São Paulo mainly polluted by O(3). Each experiment started with 50 plants, and lasted 28 days. Sub-lots of five plants were taken at intervals between three or four days long. Groups of four plants were also exposed in closed chambers to filtered air or to 40, 50 or 80 ppb of O(3) for three consecutive hours a day for six days. The percentage of leaf injury (interveinal chloroses and necroses), the concentrations of ascorbic acid (AA) and the activity of superoxide dismutase (SOD) and peroxidases (POD) were determined in the 5th, 6th and 7th oldest leaves on the main stem of the plants taken in all experiments. Visible injury occurred in the plants from all experiments. Seasonality in the antioxidant responses observed in plants grown under field conditions was associated with meteorological variables and ozone concentrations five days before leaf analyses. The highest levels of antioxidants occurred during the spring. The percentage of leaf injury was explained (R(2) = 0.97, p < 0.01) by the reduction in the levels of AA and activity of POD five days before the leaf analyses and by the reduction in the levels of particulate matter, and enhancement of temperature and global radiation 10 days before this same day. Although I. nil may be employed for qualitative O(3) biomonitoring, its efficiency for quantitative biomonitoring in the sub-tropics may be compromised, depending on how intense the oxidative power of the environment is.
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Rinaldi MCS, Domingos M, Dias APL, Esposito JBN, Pagliuso JD. Leaves of Lolium multiflorum 'Lema' and tropical tree species as biomonitors of polycyclic aromatic hydrocarbons. Ecotoxicol Environ Saf 2012; 79:139-147. [PMID: 22285658 DOI: 10.1016/j.ecoenv.2011.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 12/15/2011] [Accepted: 12/24/2011] [Indexed: 05/31/2023]
Abstract
This study extends the current knowledge regarding the use of plants for the passive accumulation of anthropogenic PAHs that are present in the atmospheric total suspended particles (TSP) in the tropics and sub-tropics. It is of major relevance because the anthropic emissions of TSP containing PAHs are significant in these regions, but their monitoring is still scarce. We compared the biomonitor efficiency of Lolium multiflorum 'Lema' and tropical tree species (Tibouchina pulchra and Psidium guajava 'Paluma') that were growing in an intensely TSP-polluted site in Cubatão (SE Brazil), and established the species with the highest potential for alternative monitoring of PAHs. PAHs present in the TSP indicated that the region is impacted by various emission sources. L. multiflorum showed a greater efficiency for the accumulation of PAH compounds on their leaves than the tropical trees. The linear regression between the logBCF and logKoa revealed that L. multiflorum is an efficient biomonitor of the profile of light and heavy PAHs present in the particulate phase of the atmosphere during dry weather and mild temperatures. The grass should be used only for indicating the PAHs with higher molecular weight in warmer and wetter periods.
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Affiliation(s)
- Mirian C S Rinaldi
- Instituto de Botânica, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil.
| | - Marisa Domingos
- Instituto de Botânica, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil
| | - Ana P L Dias
- Instituto de Botânica, Caixa Postal 68041, 04045-972 São Paulo, SP, Brazil
| | | | - Josmar D Pagliuso
- Escola de Engenharia de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, Brazil
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Alves ES, Moura BB, Pedroso ANV, Tresmondi F, Domingos M. The efficiency of tobacco Bel-W3 and native species for ozone biomonitoring in subtropical climate, as revealed by histo-cytochemical techniques. Environ Pollut 2011; 159:3309-15. [PMID: 21917365 DOI: 10.1016/j.envpol.2011.08.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 08/18/2011] [Accepted: 08/21/2011] [Indexed: 05/28/2023]
Abstract
We aimed to verify whether hydrogen peroxide (H(2)O(2)) accumulation and cell death are detected early in three bioindicators of ozone (O(3)), Nicotiana tabacum 'Bel-W3', Ipomoea nil 'Scarlet O'Hara' and Psidium guajava 'Paluma', and whether environmental factors also affect those microscopic markers. The three species were exposed to chronic levels of O(3) in a subtropical area and a histo-cytochemical technique that combines 3,3'-diaminobenzidine (DAB) with Evans blue staining was used in the assessments. The three species accumulated H(2)O(2), but a positive correlation with O(3) concentration was only observed in N. tabacum. A positive correlation between O(3) and cellular death was also observed in N. tabacum. In I. nil and P. guajava, environmental factors were responsible for symptoms at the microscopic level, especially in P. guajava. We conclude that the most appropriate and least appropriate bioindicator plant for O(3) monitoring in the subtropics are N. tabacum 'Bel-W3' and P. guajava 'Paluma', respectively.
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Affiliation(s)
- Edenise S Alves
- Instituto de Botânica, Caixa Postal 3005, 01061-970 São Paulo, Brazil.
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Dafré-Martinelli M, Nakazato RK, Dias APL, Rinaldi MCS, Domingos M. The redox state of Ipomoea nil 'Scarlet O'Hara' growing under ozone in a subtropical area. Ecotoxicol Environ Saf 2011; 74:1645-1652. [PMID: 21741708 DOI: 10.1016/j.ecoenv.2011.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 05/30/2011] [Accepted: 06/01/2011] [Indexed: 05/31/2023]
Abstract
The occurrence of visible leaf injury caused by ozone in Ipomoea nil 'Scarlet O'Hara' may be regulated by their redox state, affecting its bioindicator efficiency. Thus, this study aimed to determine whether the redox state of I. nil plants in a subtropical area (São Paulo, SE-Brazil) contaminated by ozone oscillates, and to identify the environmental factors behind these variations. We comparatively evaluated indicators of redox state (ascorbic acid, glutathione, superoxide dismutase, ascorbate peroxidase, glutathione reductase) and leaf injury during nine field experiments of 28 days each. The variations in the redox indicators were explained by the combined effects of chronic levels of ozone and meteorological variables (mainly global solar radiation and air temperature) 3-6 days prior to the sampling days. The ascorbic acid and glutathione were crucial for increasing plant tolerance to ozone. Weak visible injury was observed in all experiments and occurred in leaves with low levels of ascorbic and dehydroascorbic acids.
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De Giglio E, Cafagna D, Giangregorio MM, Domingos M, Mattioli-Belmonte M, Cometa S. PHEMA-based thin hydrogel films for biomedical applications. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511410460] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Poly(2-hydroxyethyl methacrylate) based thin coatings were electro-synthesized by cyclic voltammetry on Au-coated quartz crystal surfaces to study different solid—liquid interfacial processes. By varying the electrochemical parameters and the presence or not of a crosslinking agent, films were obtained with thicknesses ranging from 5 to 90 nm. Surface characterization was performed by X-ray photoelectron spectroscopy, atomic force microscopy, and static contact angle measurements. Using quartz crystal microbalance with dissipation monitoring to investigate the relationship between the film thickness and the swelling behavior, it was found that these characteristics can be modulated by varying either the number of voltammetric cycles or the presence of the crosslinker. Cell adhesion and biocompatibility tests indicate that these film coatings were suitable for biomedical applications.
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Affiliation(s)
- E. De Giglio
- Department of Chemistry, University of Bari 'Aldo Moro', Bari, Italy
| | - D. Cafagna
- Department of Chemistry, University of Bari 'Aldo Moro', Bari, Italy
| | - MM Giangregorio
- Department of Chemistry, University of Bari 'Aldo Moro' , Bari, Italy
| | - M. Domingos
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria (IPL), Leiria, Portugal
| | - M. Mattioli-Belmonte
- Department of Molecular Pathology and Innovative Therapies, Universitá Politecnica delle Marche, Ancona, Italy
| | - S. Cometa
- Laboratory of Bioactive Polymeric Materials for Biomedical & Environmental Applications, Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy,
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Domingos M, Gouveia M, Nolasco F, Pereira J. Can kidney deceased donation systems be optimized? A retrospective assessment of a country performance. Eur J Public Health 2011; 22:290-4. [DOI: 10.1093/eurpub/ckr003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Dias APL, Dafré M, Rinaldi MCS, Domingos M. How the redox state of tobacco 'Bel-W3' is modified in response to ozone and other environmental factors in a sub-tropical area? Environ Pollut 2011; 159:458-65. [PMID: 21093132 DOI: 10.1016/j.envpol.2010.10.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Revised: 10/13/2010] [Accepted: 10/15/2010] [Indexed: 05/30/2023]
Abstract
This study intended to determine whether the redox state in plants of Nicotiana tabacum 'Bel-W3' fluctuates in response to the environmental factors in a sub-tropical area contaminated by ozone (São Paulo, SE-Brazil) and which environmental factors are related to this fluctuation, discussing their biomonitoring efficiency. We comparatively evaluated the indicators of redox state (ascorbic acid, glutathione, superoxide dismutase, ascorbate peroxidase, and glutathione reductase) and leaf injury in 17 field experiments performed in 2008. The redox state was explained by the combined effects of chronic levels of O(3) and meteorological variables 4-6 days prior to the plant sampling. Moderate leaf injury was observed in most cases. The redox state of tobacco decreases few days after their placement in the sub-tropical environment, causing them to become susceptible to oxidative stress imposed by chronic doses of O(3). Its bioindicator efficiency would not be diminished in such levels of atmospheric contamination.
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Affiliation(s)
- Ana P L Dias
- Instituto de Botânica, Caixa Postal 3005, 01061-970 São Paulo, SP, Brazil
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Bulbovas P, de Moraes RM, Spasiani Rinaldi MC, Luiza Cunha A, Carvalho Delitti WB, Domingos M. Leaf antioxidant fluctuations and growth responses in saplings of Caesalpinia echinata Lam. (brazilwood) under an urban stressing environment. Ecotoxicol Environ Saf 2010; 73:664-670. [PMID: 20060591 DOI: 10.1016/j.ecoenv.2009.12.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2008] [Revised: 12/07/2009] [Accepted: 12/07/2009] [Indexed: 05/28/2023]
Abstract
We intended to establish how efficient the leaf antioxidant responses of C. echinata are against oxidative environmental conditions observed in an urban environment and their relations to growth and biomass parameters. Plants were grown for 15 months in four sites: Congonhas and Pinheiros, affected by pollutants from vehicular emissions; Ibirapuera, affected by high O(3) concentrations; and a greenhouse with filtered air. Fifteen plants were quarterly removed from each site for analysis of antioxidants, growth and biomass. Plants growing in polluted sites showed alterations in their antioxidants. They were shorter, had thicker stems and produced less leaf biomass than plants maintained under filtered air. The fluctuations in the levels of antioxidants were significantly influenced by combined effects of climatic and pollution variables. The higher were the antioxidant responses and the concentrations of pollutant markers of air contamination in each site the slower were the growth and biomass production.
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Affiliation(s)
- Patricia Bulbovas
- Seção de Ecologia, Instituto de Botânica, CP 3005, 01061-970 São Paulo, SP, Brazil.
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de Souza Lima E, de Souza SR, Domingos M. Sensitivity of Tradescantia pallida (Rose) Hunt. ‘Purpurea’ Boom to genotoxicity induced by ozone. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2009; 675:41-5. [DOI: 10.1016/j.mrgentox.2009.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2008] [Revised: 11/28/2008] [Accepted: 02/04/2009] [Indexed: 10/21/2022]
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Domingos M, Amado A, Botelho A. IS1245 RFLP analysis of strains of Mycobacterium avium
subspecies hominissuis
isolated from pigs with tuberculosis lymphadenitis in Portugal. Vet Rec 2009; 164:116-20. [DOI: 10.1136/vr.164.4.116] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- M. Domingos
- Laboratório Nacional de Investigação Veterinária; Estrada de Benfica 701 1549-011 Lisboa Portugal
| | - A. Amado
- Laboratório Nacional de Investigação Veterinária; Estrada de Benfica 701 1549-011 Lisboa Portugal
| | - A. Botelho
- Laboratório Nacional de Investigação Veterinária; Estrada de Benfica 701 1549-011 Lisboa Portugal
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Savóia EJL, Domingos M, Guimarães ET, Brumati F, Saldiva PHN. Biomonitoring genotoxic risks under the urban weather conditions and polluted atmosphere in Santo André, SP, Brazil, through Trad-MCN bioassay. Ecotoxicol Environ Saf 2009; 72:255-260. [PMID: 18571723 DOI: 10.1016/j.ecoenv.2008.03.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Revised: 03/11/2008] [Accepted: 03/24/2008] [Indexed: 05/26/2023]
Abstract
The present study was made to check if the Trad-MCN bioassay, developed with inflorescences of Tradescantia pallida cv. Purpurea, might discriminate genotoxic risks in areas of the city of Santo André (SE Brazil) contaminated by different air pollutants, and periods of the year when risks are higher, and to determine if the variations in the frequency of micronuclei (MCN) can be explained by environmental factors that characterize the stressful situation in each site. Potted plants were exposed in sites highly contaminated by ozone (Capuava and School) and in sites reached by high vehicular emissions (downtown and Celso Daniel Park). Pedroso Park, far from the polluted areas, was taken as reference. From September 2003 to September 2004, 20 young inflorescences were collected twice a week from each place and the frequencies of MCN were estimated. The environmental conditions observed in the polluted sites were stressful enough to promote an increase of MCN, mainly in sites reached by high vehicular emissions. But MCN rates in Capuava and at Celso Daniel Park could not be predicted only by pollutants which characterized the air contamination in these sites. More severe weather conditions, mainly low temperature, relative humidity and rainfall, caused an increase of MCN. Improvement of the biomonitoring system is recommended to minimize this negative influence of weather factors.
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Affiliation(s)
- Eriane Justo Luiz Savóia
- Serviço Municipal de Saneamento Ambiental de Santo André (SEMASA), Rua Osvaldo Cruz 99, 09185-440 Santo André, São Paulo, Brazil.
| | - Marisa Domingos
- Seção de Ecologia, Instituto de Botânica, Caixa Postal 3005, 01061-970 São Paulo, Brazil
| | - Eliane Tigre Guimarães
- Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo, Avenida Dr. Arnaldo 455, 01246-903 São Paulo, Brazil
| | - Fabiano Brumati
- Serviço Municipal de Saneamento Ambiental de Santo André (SEMASA), Rua Osvaldo Cruz 99, 09185-440 Santo André, São Paulo, Brazil
| | - Paulo Hilário Nascimento Saldiva
- Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo, Avenida Dr. Arnaldo 455, 01246-903 São Paulo, Brazil
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