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Portillo-Estrada M. Limitations of Plant Stress Tolerance upon Heat and CO 2 Exposure in Black Poplar: Assessment of Photosynthetic Traits and Stress Volatile Emissions. PLANTS (BASEL, SWITZERLAND) 2024; 13:1165. [PMID: 38674574 PMCID: PMC11054441 DOI: 10.3390/plants13081165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
Volatile organic compounds (VOCs) emitted by plants may help in understanding the status of a plant's physiology and its coping with mild to severe stress. Future climatic projections reveal that shifts in temperature and CO2 availability will occur, and plants may incur the uncoupling of carbon assimilation and synthesis of key molecules. This study explores the patterns of emissions of key VOCs (isoprene, methanol, acetaldehyde, and acetic acid) emitted by poplar leaves (more than 350) under a combined gradient of temperature (12-42 °C) and air CO2 concentration (400-1500 ppm), along with measurements of photosynthetic rates and stomatal conductance. Isoprene emission exhibited a rise with temperature and CO2 availability, peaking at 39 °C, the temperature at which methanol emission started to peak, illustrating the limit of stress tolerance to severe damage. Isoprene emission was uncoupled from the photosynthesis rate, indicating a shift from the carbon source for isoprene synthesis, while assimilation was decreased. Methanol and acetaldehyde emissions were correlated with stomatal conductance and peaked at 25 °C and 1200 ppm CO2. Acetic acid emissions lacked a clear correlation with stomatal conductance and the emission pattern of its precursor acetaldehyde. This study offers crucial insights into the limitations of photosynthetic carbon and stress tolerance.
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2
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Corion M, Portillo-Estrada M, Santos S, Lammertyn J, De Ketelaere B, Hertog M. Non-destructive egg breed separation using advanced VOC analytical techniques HSSE-GC-MS, PTR-TOF-MS, and SIFT-MS: Assessment of performance and systems' complementarity. Food Res Int 2024; 176:113802. [PMID: 38163682 DOI: 10.1016/j.foodres.2023.113802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/24/2023] [Accepted: 12/02/2023] [Indexed: 01/03/2024]
Abstract
Over the past decade, advanced analytical techniques have been utilized to examine volatile organic compounds (VOCs) in eggs. These VOCs offer valuable insights into factors such as freshness, fertility, the presence of cracks, embryo sex, and breed. In our study, we assessed three mass spectrometry-based systems (headspace sorptive extraction gas chromatography-mass spectrometry; HSSE-GC-MS, proton transfer reaction time-of-flight-mass spectrometry; PTR-TOF-MS; and selected ion flow tube mass spectrometry; SIFT-MS) to analyze and identify VOCs present in intact hatching eggs from three distinct breeds (Dekalb white layer, Shaver brown layer, and Ross 308 broiler). The eggs were sampled on incubation days 2 and 8, to identify VOCs that distinguish breeds irrespective of incubation day. VOC measurements were conducted on 15 eggs per breed by placing them together with PDMS-coated stir bars inside inert Teflon® air sampling bags. After an accumulation period of 2 h, the headspace was analyzed using PTR-TOF-MS and SIFT-MS, while the VOCs adsorbed onto the stir bars were analyzed using GC-MS for additional compound identification. Partial least squares discriminant analysis (PLS-DA) models were constructed for breed differentiation, and variable selection was performed. As a result, 111 VOCs were identified using HSSE-GC-MS, with alcohols and esters being the most abundant. The PLS-DA models demonstrated the efficacy of breed discrimination, with the HSSE-GC-MS and the PTR-TOF-MS exhibiting the highest balanced accuracy of 95.5 % using a reduced set of 11 VOCs and 5 product ions, respectively. The SIFT-MS model had a balanced accuracy of 92.8 % with a reduced set of 11 product ions. Furthermore, complementarity was observed between HSSE-GC-MS, which primarily selected higher molecular weight VOCs, and PTR-TOF-MS and SIFT-MS. A higher correlation was found for compound abundances between the HSSE-GC-MS and the PTR-TOF-MS relative to the SIFT-MS, indicating that the PTR-TOF-MS was better suited to quantify specific compounds identified by the HSSE-GC-MS. Finally, the findings support the presence of VOCs originating from both synthetic and natural sources, highlighting the ability of the VOC analysis systems to non-destructively perform quality control and reveal differences in management practices or biological information encoded in eggs.
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Affiliation(s)
- Matthias Corion
- KU Leuven, BIOSYST-MeBioS Biosensors Group, Department of Biosystems, Leuven, Belgium
| | | | - Simão Santos
- KU Leuven, BIOSYST-MeBioS Biosensors Group, Department of Biosystems, Leuven, Belgium
| | - Jeroen Lammertyn
- KU Leuven, BIOSYST-MeBioS Biosensors Group, Department of Biosystems, Leuven, Belgium
| | - Bart De Ketelaere
- KU Leuven, BIOSYST-MeBioS Biostatistics Group, Department of Biosystems, Leuven, Belgium
| | - Maarten Hertog
- KU Leuven, BIOSYST-MeBioS Postharvest Group, Department of Biosystems, Leuven, Belgium.
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3
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Jiang C, Dobrowolny H, Gescher DM, Meyer-Lotz G, Steiner J, Hoeschen C, Frodl T. Volatile organic compounds from exhaled breath in schizophrenia. World J Biol Psychiatry 2022; 23:773-784. [PMID: 35171077 DOI: 10.1080/15622975.2022.2040052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVES This study aims to find out whether volatile organic compounds (VOCs) from exhaled breath differ significantly between patients with schizophrenia and healthy controls and whether it might be possible to create an algorithm that can predict the likelihood of suffering from schizophrenia. METHODS To test this theory, a group of patients with clinically diagnosed acute schizophrenia as well as a healthy comparison group has been investigated, which have given breath samples during awakening response right after awakening, after 30 min and after 60 min. The VOCs were measured using Proton-Transfer-Reaction Mass Spectrometry. RESULTS By applying bootstrap with mixed model analysis (n = 1000), we detected 10 signatures (m/z 39, 40, 59, 60, 69, 70, 74, 85, 88 and 90) showing reduced concentration in patients with schizophrenia compared to healthy controls. These could safely discriminate patients and controls and were not influenced by smoking. Logistic regression forward method achieved an area under the receiver operating characteristic curve (AUC) of 0.91 and an accuracy of 82% and a machine learning approach with bartMachine an AUC of 0.96 and an accuracy of 91%. CONCLUSION Breath gas analysis is easy to apply, well tolerated and seems to be a promising candidate for further studies on diagnostic and predictive clinical utility.
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Affiliation(s)
- Carina Jiang
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg (OVGU), Magdeburg, Germany
| | - Henrik Dobrowolny
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg (OVGU), Magdeburg, Germany
| | - Dorothee Maria Gescher
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg (OVGU), Magdeburg, Germany.,Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital, RWTH Aachen, Aachen, Germany
| | - Gabriela Meyer-Lotz
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg (OVGU), Magdeburg, Germany
| | - Johann Steiner
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg (OVGU), Magdeburg, Germany
| | - Christoph Hoeschen
- Institute of Medical Engineering, Otto von Guericke University Magdeburg (OVGU), Magdeburg, Germany
| | - Thomas Frodl
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg (OVGU), Magdeburg, Germany.,Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital, RWTH Aachen, Aachen, Germany
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4
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Jardine KJ, Dewhirst RA, Som S, Lei J, Tucker E, Young RP, Portillo‐Estrada M, Gao Y, Su L, Fares S, Castanha C, Scheller HV, Mortimer JC. Cell wall ester modifications and volatile emission signatures of plant response to abiotic stress. PLANT, CELL & ENVIRONMENT 2022; 45:3429-3444. [PMID: 36222152 PMCID: PMC9828120 DOI: 10.1111/pce.14464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/29/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Growth suppression and defence signalling are simultaneous strategies that plants invoke to respond to abiotic stress. Here, we show that the drought stress response of poplar trees (Populus trichocarpa) is initiated by a suppression in cell wall derived methanol (MeOH) emissions and activation of acetic acid (AA) fermentation defences. Temperature sensitive emissions dominated by MeOH (AA/MeOH <30%) were observed from physiologically active leaves, branches, detached stems, leaf cell wall isolations and whole ecosystems. In contrast, drought treatment resulted in a suppression of MeOH emissions and strong enhancement in AA emissions together with volatiles acetaldehyde, ethanol, and acetone. These drought-induced changes coincided with a reduction in stomatal conductance, photosynthesis, transpiration, and leaf water potential. The strong enhancement in AA/MeOH emission ratios during drought (400%-3500%) was associated with an increase in acetate content of whole leaf cell walls, which became significantly 13 C2 -labelled following the delivery of 13 C2 -acetate via the transpiration stream. The results are consistent with both enzymatic and nonenzymatic MeOH and AA production at high temperature in hydrated tissues associated with accelerated primary cell wall growth processes, which are downregulated during drought. While the metabolic source(s) require further investigation, the observations are consistent with drought-induced activation of aerobic fermentation driving high rates of foliar AA emissions and enhancements in leaf cell wall O-acetylation. We suggest that atmospheric AA/MeOH emission ratios could be useful as a highly sensitive signal in studies investigating environmental and biological factors influencing growth-defence trade-offs in plants and ecosystems.
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Affiliation(s)
- Kolby J. Jardine
- Lawrence Berkeley National LabClimate and Ecosystem Science DivisionBerkeleyCaliforniaUSA
| | - Rebecca A. Dewhirst
- Lawrence Berkeley National LabClimate and Ecosystem Science DivisionBerkeleyCaliforniaUSA
| | - Suman Som
- Lawrence Berkeley National LabClimate and Ecosystem Science DivisionBerkeleyCaliforniaUSA
| | - Joseph Lei
- Lawrence Berkeley National LabClimate and Ecosystem Science DivisionBerkeleyCaliforniaUSA
| | - Eliana Tucker
- Lawrence Berkeley National LabClimate and Ecosystem Science DivisionBerkeleyCaliforniaUSA
| | - Robert P. Young
- Environmental Molecular Sciences LaboratoryPacific Northwest National LabRichlandWashingtonUSA
| | - Miguel Portillo‐Estrada
- Department of Biology, Research group PLECO (Plants and Ecosystems)University of AntwerpWilrijkBelgium
| | - Yu Gao
- Lawrence Berkeley National LabJoint BioEnergy InstituteEmeryvilleCaliforniaUSA
| | | | - Silvano Fares
- Institute of BioEconomyNational Research CouncilRomeItaly
- Department of Environmental Science, Policy, and ManagementUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Cristina Castanha
- Lawrence Berkeley National LabClimate and Ecosystem Science DivisionBerkeleyCaliforniaUSA
| | - Henrik V. Scheller
- Lawrence Berkeley National LabJoint BioEnergy InstituteEmeryvilleCaliforniaUSA
- Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Jenny C. Mortimer
- Lawrence Berkeley National LabJoint BioEnergy InstituteEmeryvilleCaliforniaUSA
- School of Agriculture, Food, and WineUniversity of AdelaideGlen OsmondSouth AustraliaAustralia
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5
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Yadav R, Beig G, Anand V, Kalbande R, Maji S. Tracer-based characterization of source variations of ambient isoprene mixing ratios in a hillocky megacity, India, influenced by the local meteorology. ENVIRONMENTAL RESEARCH 2022; 205:112465. [PMID: 34863985 DOI: 10.1016/j.envres.2021.112465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/30/2021] [Accepted: 11/27/2021] [Indexed: 06/13/2023]
Abstract
The ambient biogenic volatile organic compounds (BVOCs), mainly isoprene, are potentially involved in the formation of secondary pollutants, hence, they are significant in terms of air quality and climate. Although the largest sources of BVOCs are tropical regions, the measurements of isoprene in the Indian subcontinent are limited. We conducted the measurements of isoprene, benzene, and toluene at an urban site in a hillocky megacity of India using a high-sensitivity proton transfer reaction quadrupole mass spectrometer (PTR-QMS). The mixing ratios of isoprene were compared with those of aromatic compounds like benzene and toluene, which represent typical anthropogenic VOCs. Isoprene and isoprene/benzene (>5 ppbv ppbv-1) showed higher levels in the pre-monsoon months, most likely due to large emissions by urban vegetation during physiological activities in plants which was enhanced by the high ambient temperatures and solar radiation. While Benzene and toluene showed higher mixing ratios during winter, which were due to shallower boundary layer depths and transport of air masses from polluted Indo-Gangetic Plain during this season. The mixing ratios of VOCs show significant diurnal variation as a result of their different origins and the role of different meteorological parameters. The robust emission ratios of isoprene/benzene obtained from nighttime data were used to separate the non-anthropogenic and anthropogenic isoprene emissions. ∼30% enhancement observed in non-anthropogenic emissions to isoprene from winter to pre-monsoon season when temperatures and solar radiation were stronger, although traffic in the city. Isoprene/benzene ratio at lower temperatures (<25 °C) and solar radiation (<100 W m-2) was predominantly controlled by anthropogenic sources. Overall, toluene and isoprene are the most frequent species in terms of having the highest ozone-forming potential (OFP) values but biogenic isoprene became more important to ozone formation during the afternoon hours in the pre-monsoon months with high air temperatures (>25 °C).
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Affiliation(s)
- Ravi Yadav
- Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Government of India, Pune, India.
| | - Gufran Beig
- Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Government of India, Pune, India
| | - Vrinda Anand
- Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Government of India, Pune, India
| | - Ritesh Kalbande
- Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Government of India, Pune, India
| | - Sujit Maji
- Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Government of India, Pune, India
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6
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Portillo‐Estrada M, Van Moorleghem C, Janssenswillen S, Cooper RJ, Birkemeyer C, Roelants K, Van Damme R. Proton‐transfer‐reaction time‐of‐flight mass spectrometry (PTR‐TOF‐MS) as a tool for studying animal volatile organic compound (VOC) emissions. Methods Ecol Evol 2021. [DOI: 10.1111/2041-210x.13554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miguel Portillo‐Estrada
- Research Group Pleco (Plants and Ecosystems) Department of Biology University of Antwerp Wilrijk Belgium
| | - Charlotte Van Moorleghem
- Laboratory for Functional Morphology Department of Biology University of Antwerp Wilrijk Belgium
| | - Sunita Janssenswillen
- Amphibian Evolution Lab Biology Department Vrije Universiteit Brussel Brussels Belgium
| | - Richard Joseph Cooper
- Amphibian Evolution Lab Biology Department Vrije Universiteit Brussel Brussels Belgium
| | | | - Kim Roelants
- Amphibian Evolution Lab Biology Department Vrije Universiteit Brussel Brussels Belgium
| | - Raoul Van Damme
- Laboratory for Functional Morphology Department of Biology University of Antwerp Wilrijk Belgium
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7
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Borinelli JB, Blom J, Portillo-Estrada M, Kara De Maeijer P, Van den bergh W, Vuye C. VOC Emission Analysis of Bitumen Using Proton-Transfer Reaction Time-Of-Flight Mass Spectrometry. MATERIALS 2020; 13:ma13173659. [PMID: 32825044 PMCID: PMC7504115 DOI: 10.3390/ma13173659] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/08/2020] [Accepted: 08/17/2020] [Indexed: 01/06/2023]
Abstract
Bitumen is one of the most important materials used in roads. During asphalt pavement construction, workers can be affected by emissions, such as volatile organic compounds (VOCs), when bitumen is heated. Therefore, it is crucial to correctly identify and measure VOCs. This paper presents a novel, promising method to determine VOC emissions. The proposed method offers a way to standardize routine measurements on a lab scale, enabling reliable comparison across bitumen types and their modifications or additives. A proton-transfer reaction time-of-flight mass spectrometer (PTR-TOF-MS) was used to monitor VOC emissions from commercial unmodified bitumen and crumb rubber modified bitumen (CRMB) with heating of up to 180 °C. Results confirmed that the temperature range of 160–180 °C is a highly influential factor for VOC emissions from heated commercial bitumen and particularly CRMB. A significant increase in alkane and aromatic emission was detected when the binders were heated to 180 °C. Sulfur-containing VOCs were almost nonexistent for the base bitumen fumes, while a significant increase was detected in the fumes when two different types of CR were added to the bitumen, even at 120 °C. The additional CR in the bituminous binder contributed to the potentially harmful VOC emission of benzothiazole, which belongs to the class of sulfur-containing compounds. The concentration of benzothiazole was 65%, 38%, and 35% higher for CR1 in comparison to CR2 at 140, 160, and 180 °C, respectively. It is clear from the results that this method allows different bitumen sources or modifications to be quickly analyzed and their VOC emissions cross-compared. If adopted and confirmed further, the method could offer the asphalt industry a viable solution to monitor VOC emissions by analyzing samples in real time at different steps of the production process.
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Affiliation(s)
- Jaffer Bressan Borinelli
- Road Engineering Research Section (RERS), EMIB, Faculty of Applied Engineering, University of Antwerp, 2020 Antwerp, Belgium; (J.B.); (P.K.D.M.); (W.V.d.b.); (C.V.)
- Correspondence: ; Tel.: +32-3-265-9676
| | - Johan Blom
- Road Engineering Research Section (RERS), EMIB, Faculty of Applied Engineering, University of Antwerp, 2020 Antwerp, Belgium; (J.B.); (P.K.D.M.); (W.V.d.b.); (C.V.)
| | - Miguel Portillo-Estrada
- Research Group PLECO (Plants and Ecosystems), Faculty of Science, University of Antwerp, 2610 Wilrijk, Belgium;
| | - Patricia Kara De Maeijer
- Road Engineering Research Section (RERS), EMIB, Faculty of Applied Engineering, University of Antwerp, 2020 Antwerp, Belgium; (J.B.); (P.K.D.M.); (W.V.d.b.); (C.V.)
| | - Wim Van den bergh
- Road Engineering Research Section (RERS), EMIB, Faculty of Applied Engineering, University of Antwerp, 2020 Antwerp, Belgium; (J.B.); (P.K.D.M.); (W.V.d.b.); (C.V.)
| | - Cedric Vuye
- Road Engineering Research Section (RERS), EMIB, Faculty of Applied Engineering, University of Antwerp, 2020 Antwerp, Belgium; (J.B.); (P.K.D.M.); (W.V.d.b.); (C.V.)
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8
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Dewhirst RA, Mortimer JC, Jardine KJ. Do Cell Wall Esters Facilitate Forest Response to Climate? TRENDS IN PLANT SCIENCE 2020; 25:729-732. [PMID: 32600937 DOI: 10.1016/j.tplants.2020.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
Terrestrial ecosystem dynamics are strongly modified by stresses associated with climate change, impacting plant growth and development, mortality, and ecological succession. Here we highlight the potential role of plant cell wall esters to link changes in cell wall structure and function with biosphere-atmosphere fluxes of methanol, acetic acid, carbon dioxide (CO2), and water (H2O).
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Affiliation(s)
- Rebecca A Dewhirst
- Climate and Ecosystems Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - Jenny C Mortimer
- Joint BioEnergy Institute, Emeryville, CA, USA; Environmental Genomics and Systems Biology, Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
| | - Kolby J Jardine
- Climate and Ecosystems Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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9
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Portillo-Estrada M, Ariza-Carricondo C, Ceulemans R. Outburst of senescence-related VOC emissions from a bioenergy poplar plantation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 148:324-332. [PMID: 32004916 DOI: 10.1016/j.plaphy.2020.01.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 06/10/2023]
Abstract
Leaf senescence is a catabolic process that emits volatile organic compounds (VOCs). In densely planted monocultures these VOC emissions occur in outbursts that might be relevant for the local air quality since these VOCs are typically oxygenated. The VOC emissions of a high-density poplar (Populus) bioenergy plantation were monitored along with meteorological parameters, CO2 and H2O exchanges, canopy greenness, and leaf area index during the second half of the year 2015. The emissions of 25 VOCs peaked at the beginning of September, coinciding with the onset of senescence. Together these VOC emissions amounted to a total of 2.85 mmol m-2, translated into 98.3 mg C m-2. The emission peak was mainly composed of oxygenated VOCs as methanol, acetic acid, and lipoxygenase products that are all typical for catabolic processes. So, the senescence process of the poplar plantation was very well reflected in the peak of VOC emissions.
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Affiliation(s)
- Miguel Portillo-Estrada
- Centre of Excellence PLECO, Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Belgium.
| | - Cristina Ariza-Carricondo
- Centre of Excellence PLECO, Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Belgium.
| | - Reinhart Ceulemans
- Centre of Excellence PLECO, Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610, Wilrijk, Belgium; CzechGlobe, SustES, Belidla 4a, 603 00, Brno, Czech Republic.
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10
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Huang X, Lai J, Liu Y, Zheng L, Fang X, Song W, Yi Z. Biogenic volatile organic compound emissions from Pinus massoniana and Schima superba seedlings: Their responses to foliar and soil application of nitrogen. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135761. [PMID: 31972929 DOI: 10.1016/j.scitotenv.2019.135761] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/18/2019] [Accepted: 11/24/2019] [Indexed: 06/10/2023]
Abstract
Increasing nitrogen (N) deposition is one of the main drivers of global change, while the emission of biogenic volatile organic compounds (BVOCs) from plant in response to elevated N deposition is poorly understood, especially with respect to the response to foliar application of N. In this study, BVOC emissions from two tree species (Pinus massoniana Lamb. and Schima superba Gardn. et Champ.) were determined by dynamic chamber coupled with a proton transfer reaction-time of flight-mass spectrometer. Two N application methods, namely soil application of N (SAN) and foliar application of N (FAN), and three N levels (5.6, 15.6 and 20.6 g N m-2 yr-1) were employed by applying NH4NO3 every week for 1.5 years. The results showed that: (1) oxygenated volatile organic compounds (OVOCs, mainly acetaldehyde, methyl alcohol, ethenone and acetone) and non-methane hydrocarbons (NMHCs, mainly monoterpenes, propyne, 1,3-butadiene and propylene) were the dominant BVOCs for all the treatments, accounting for 32.40-65.72% and 19.21-47.39% of total 100 determined BVOC compounds, respectively; (2) for S. superba seedlings, both SAN and FAN treatments significantly decreased total BVOC emissions (11.83% to 66.23%). However, total BVOCs from P. massoniana significantly increased with N addition for SAN treatment, while no difference were found in the FAN treatment; (3) BVOC emission rates for FAN treatment were significantly lower than those for SAN treatment, indicating that previous studies which simulated N deposition by adding N directly to soil might have imprecisely estimated their effects on plant BVOC emissions. Considering the inconsistent responses of BVOC emissions to different N application methods for different plant species, close attention should be paid on the effects of N deposition or even global change on plant BVOC emissions in the future.
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Affiliation(s)
- Xingran Huang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jinmei Lai
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yanfei Liu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lili Zheng
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiong Fang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wei Song
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Zhigang Yi
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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11
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Imperato V, Kowalkowski L, Portillo-Estrada M, Gawronski SW, Vangronsveld J, Thijs S. Characterisation of the Carpinus betulus L. Phyllomicrobiome in Urban and Forest Areas. Front Microbiol 2019; 10:1110. [PMID: 31191469 PMCID: PMC6549492 DOI: 10.3389/fmicb.2019.01110] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 05/01/2019] [Indexed: 11/30/2022] Open
Abstract
Urban green areas are highly valued by citizens for their contribution to the quality of life in cities. Plants play an important role in mitigating airborne pollutants and are assisted in this role by the metabolic capacities of the millions of microbial cells that colonize leaf surfaces (phyllosphere). Many factors influence phyllosphere microbial community composition and function, but to what extent does airborne pollution in cities impact the composition of microbial communities and their functional degradation genes? Here we describe the characterization of the phyllospheric bacterial communities of Carpinus betulus L. trees (hornbeam) across three locations: the city center of Warsaw (Poland), a forest in a UNESCO World Heritage Site (Białowieża), and a forest in one of the world’s oldest operational oil fields (Bóbrka). C. betulus contained higher particulate matter (PM) concentrations, with higher concentrations of palladium and radon in the PM, on leaves in Warsaw than in the forests. Volatile organic compound (VOC) analyses of sampled air revealed higher concentrations of butanone methyl propanal, butylbenzene, and cyclohexane in Bóbrka than Warsaw and Białowieża, while in Warsaw, xylene and toluene were higher. Shotgun microbiome sequencing uncovered a dominance of Gammaproteobacteria (71%), mainly Pseudomonas spp., Actinobacteria, Alpha- and Betaproteobacteria, and Firmicutes. Community composition and function differed significantly between the forests and Warsaw city center. Statistically more hydrocarbon degradation genes were found in Białowieża compared to Warsaw and Bóbrka, and in vitro tests of diesel degradation and plant growth promotion traits of culturable representatives revealed that Białowieża held the highest number of bacteria with plant beneficial properties and degradation genes. This study provides the first detailed insights into the microbiome of C. betulus and sets the stage for developing to a more integrated understanding of phyllosphere microbiota in cities, and their relationships with human health.
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Affiliation(s)
- Valeria Imperato
- Department of Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Lukasz Kowalkowski
- Department of Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium.,Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences, Warsaw, Poland
| | | | - Stanislaw W Gawronski
- Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences, Warsaw, Poland
| | - Jaco Vangronsveld
- Department of Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium.,Department of Plant Physiology, Faculty of Biology and Biotechnology, Maria Skłodowska-Curie University, Lublin, Poland
| | - Sofie Thijs
- Department of Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
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Portillo-Estrada M, Niinemets Ü. Massive release of volatile organic compounds due to leaf midrib wounding in Populus tremula. PLANT ECOLOGY 2018; 219:1021-1028. [PMID: 30395658 PMCID: PMC6047731 DOI: 10.1007/s11258-018-0854-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/16/2018] [Indexed: 05/13/2023]
Abstract
We investigated the rapid initial response to wounding damage generated by straight cuts to the leaf lamina and midrib transversal cuts in mature aspen (Populus tremula) leaves that can occur upon herbivore feeding. Wound-induced volatile emission time-courses of 24 compounds were continuously monitored by a proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS). After the mechanical wounding, an emission cascade was rapidly elicited, resulting in emissions of key stress volatiles methanol, acetaldehyde and volatiles of the lipoxygenase pathway, collectively constituting ca. 99% of the total emission. For the same wounding magnitude, midrib cuts lead to six-fold greater emissions of volatiles per mm2 of surface cut than lamina cuts during the first emission burst (shorter than seven minutes), and exhibited a particularly high methanol emission compared to the emissions of other volatiles. This evidence suggests that feeding by herbivores capable of consuming the leaf midrib can result in disproportionally greater volatile release than feeding by smaller herbivores incapable of biting through the major veins.
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Affiliation(s)
- Miguel Portillo-Estrada
- Centre of Excellence PLECO (Plants and Ecosystems), Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Wilrijk, Belgium
- Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51014, Estonia
| | - Ülo Niinemets
- Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51014, Estonia
- Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia
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Assessing Ecosystem Isoprene Emissions by Hyperspectral Remote Sensing. REMOTE SENSING 2018. [DOI: 10.3390/rs10071086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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