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Demiwal P, Mir JI, Sircar D. A non-invasive method for phenotyping scab-tolerant apple plants using volatile organic compounds. PHYSIOLOGIA PLANTARUM 2024; 176:e14377. [PMID: 38837251 DOI: 10.1111/ppl.14377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 04/09/2024] [Accepted: 04/16/2024] [Indexed: 06/07/2024]
Abstract
One of the most devastating diseases of apples is scab, caused by the fungus Venturia inaequalis. Most commercial apple varieties are susceptible to this disease; only a few are resistant. Breeding approaches are being used to develop better apple varieties that are resistant to scab. Volatile organic compounds (VOCs) contribute greatly to a plant's phenotype, and their emission profile largely depends on the genotype. In the non-destructive phenotyping of plants, VOCs can be used as biomarkers. In this study, we assessed non-destructively the scab tolerance potential of resistant (cv. 'Prima') and susceptible (cv. 'Oregon Spur') apple cultivars by comparing their major leaf VOC compositions and relative proportions. A comparison of the leaf VOC profiles of the two cultivars revealed 16 different VOCs, with cis-3-hexenyl acetate (3HA) emerging as a biomarker of cultivar differences. V. inaequalis growth was significantly inhibited in vitro by 3HA treatment. 3HA was significantly effective in reducing scab symptoms on V. inaequalis-inoculated leaves of 'Oregon Spur.' The resistant cultivar 'Prima' also exhibited higher lipoxygenase (LOX) activity and α-linolenic acid (ALA) levels, suggesting that V. inaequalis resistance is linked to LOX activity and 3HA biosynthesis. This study proposes 3HA as a potential biomarker for rapid non-destructive screening of scab-resistant apple germplasm of 'Prima' based on leaf VOCs.
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Affiliation(s)
- Pratibha Demiwal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - Javid Iqbal Mir
- Central Institute of Temperate Horticulture (ICAR-CITH), Srinagar, J&K, India
| | - Debabrata Sircar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
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Herrmann PSDP, dos Santos Luccas M, Ferreira EJ, Torre Neto A. Application of electronic nose and machine learning used to detect soybean gases under water stress and variability throughout the daytime. FRONTIERS IN PLANT SCIENCE 2024; 15:1323296. [PMID: 38645391 PMCID: PMC11026621 DOI: 10.3389/fpls.2024.1323296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/18/2024] [Indexed: 04/23/2024]
Abstract
The development of non-invasive methods and accessible tools for application to plant phenotyping is considered a breakthrough. This work presents the preliminary results using an electronic nose (E-Nose) and machine learning (ML) as affordable tools. An E-Nose is an electronic system used for smell global analysis, which emulates the human nose structure. The soybean (Glycine Max) was used to conduct this experiment under water stress. Commercial E-Nose was used, and a chamber was designed and built to conduct the measurement of the gas sample from the soybean. This experiment was conducted for 22 days, observing the stages of plant growth during this period. This chamber is embedded with relative humidity [RH (%)], temperature (°C), and CO2 concentration (ppm) sensors, as well as the natural light intensity, which was monitored. These systems allowed intermittent monitoring of each parameter to create a database. The soil used was the red-yellow dystrophic type and was covered to avoid evapotranspiration effects. The measurement with the electronic nose was done daily, during the morning and afternoon, and in two phenological situations of the plant (with the healthful soy irrigated with deionized water and underwater stress) until the growth V5 stage to obtain the plant gases emissions. Data mining techniques were used, through the software "Weka™" and the decision tree strategy. From the evaluation of the sensors database, a dynamic variation of plant respiration pattern was observed, with the two distinct behaviors observed in the morning (~9:30 am) and afternoon (3:30 pm). With the initial results obtained with the E-Nose signals and ML, it was possible to distinguish the two situations, i.e., the irrigated plant standard and underwater stress, the influence of the two periods of daylight, and influence of temporal variability of the weather. As a result of this investigation, a classifier was developed that, through a non-invasive analysis of gas samples, can accurately determine the absence of water in soybean plants with a rate of 94.4% accuracy. Future investigations should be carried out under controlled conditions that enable early detection of the stress level.
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Ray R, Singh SS, Yadav SR, Sircar D. A nondestructive asymptomatic early disease prediction method employing ROS-induced differential volatile emissions from dry rot-infected potatoes. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108532. [PMID: 38503189 DOI: 10.1016/j.plaphy.2024.108532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 03/05/2024] [Accepted: 03/12/2024] [Indexed: 03/21/2024]
Abstract
Potatoes are a staple crop with many health benefits. Postharvest storage of potatoes takes a considerable amount of time. Potato dry rot is one of the most serious postharvest storage diseases, caused primarily by the fungus Fusarium sambucinum. It is possible to minimize losses if disease is detected early, which allows it to be controlled promptly. A phytopathogen infection can alter the volatile profile of plants. Identifying unique volatile organic compounds (VOCs) as biomarkers for early disease detection is an area of considerable research interest. In this study, we compared the VOC profiles of healthy and dry rot inoculated potatoes (cv. "Kufri Pukhraj") over a time course using gas chromatography-mass spectrometry (GC-MS). There were 29 differentially emitting VOCs between healthy and dry rot inoculated potatoes. Nevertheless, only four of these compounds (linalool tetrahydride, γ-muurolene, alloaromadendrene, and α-isomethyl ionone) were exclusively found in dry rot inoculated potatoes, and hence they were considered biomarkers. Furthermore, reactive oxygen species (ROS) levels were altered in potatoes that were inoculated with dry rot, suggesting a role for ROS signaling in differential VOC emissions. In the early stages of dry rot infection, when symptoms were barely visible, these four biomarker VOCs were robustly useful in distinguishing healthy and dry rot-infected potatoes. These novel biomarkers associated with this disease are promising candidates for non-destructive detection of dry rot in stored potatoes at an early asymptomatic stage. These biomarkers can be used to develop an e-nose sensor to predict dry rot in the future.
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Affiliation(s)
- Rittika Ray
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Shiv Shakti Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Shri Ram Yadav
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Debabrata Sircar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India.
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Olander A, Raina JB, Lawson CA, Bartels N, Ueland M, Suggett DJ. Distinct emissions of biogenic volatile organic compounds from temperate benthic taxa. Metabolomics 2023; 20:9. [PMID: 38129550 DOI: 10.1007/s11306-023-02070-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023]
Abstract
INTRODUCTION Biogenic volatile organic compounds (BVOCs) are emitted by all organisms as intermediate or end-products of metabolic processes. Individual BVOCs perform important physiological, ecological and climatic functions, and collectively constitute the volatilome-which can be reflective of organism taxonomy and health. Although BVOC emissions of tropical benthic reef taxa have recently been the focus of multiple studies, emissions derived from their temperate counterparts have never been characterised. OBJECTIVES Characterise the volatilomes of key competitors for benthic space among Australian temperate reefs. METHODS Six fragments/fronds of a temperate coral (Plesiastrea versipora) and a macroalga (Ecklonia radiata) from a Sydney reef site were placed within modified incubation chambers filled with seawater. Organism-produced BVOCs were captured on thermal desorption tubes using a purge-and-trap methodology, and were then analysed using GC × GC - TOFMS and multivariate tests. RESULTS Analysis detected 55 and 63 BVOCs from P. versipora and E. radiata respectively, with 30 of these common between species. Each taxon was characterised by a similar relative composition of chemical classes within their volatilomes. However, 14 and 10 volatiles were distinctly emitted by either E. radiata or P. versipora respectively, including the halogenated compounds iodomethane, tribromomethane, carbon tetrachloride and trichloromonofluoromethane. While macroalgal cover was 3.7 times greater than coral cover at the sampling site, P. versipora produced on average 17 times more BVOCs per cm2 of live tissue, resulting in an estimated contribution to local BVOC emission that was 4.7 times higher than E. radiata. CONCLUSION Shifts in benthic community composition could disproportionately impact local marine chemistry and affect how ecosystems contribute to broader BVOC emissions.
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Affiliation(s)
- Axel Olander
- Climate Change Cluster, University of Technology Sydney, Broadway, NSW, 2007, Australia.
| | - Jean-Baptiste Raina
- Climate Change Cluster, University of Technology Sydney, Broadway, NSW, 2007, Australia
| | - Caitlin A Lawson
- Climate Change Cluster, University of Technology Sydney, Broadway, NSW, 2007, Australia
- School of Environmental and Life Sciences, University of Newcastle, Newcastle, NSW, Australia
| | - Natasha Bartels
- Climate Change Cluster, University of Technology Sydney, Broadway, NSW, 2007, Australia
| | - Maiken Ueland
- Centre for Forensic Science, University of Technology Sydney, Broadway, NSW, 2007, Australia
| | - David J Suggett
- Climate Change Cluster, University of Technology Sydney, Broadway, NSW, 2007, Australia
- KAUST Reefscape Restoration Initiative (KRRI) and Red Sea Research Center (RSRC), King Abdullah University of Science and Technology, 23955, Thuwal, Saudi Arabia
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Gan Z, Zhou Q, Zheng C, Wang J. Challenges and applications of volatile organic compounds monitoring technology in plant disease diagnosis. Biosens Bioelectron 2023; 237:115540. [PMID: 37523812 DOI: 10.1016/j.bios.2023.115540] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 07/09/2023] [Accepted: 07/17/2023] [Indexed: 08/02/2023]
Abstract
Biotic and abiotic stresses are well known to increase the emission of volatile organic compounds (VOCs) from plants. The analysis of VOCs emissions from plants enables timely diagnostic of plant diseases, which is critical for prompting sustainable agriculture. Previous studies have predominantly focused on the utilization of commercially available devices, such as electronic noses, for diagnosing plant diseases. However, recent advancements in nanomaterials research have significantly contributed to the development of novel VOCs sensors featuring exceptional sensitivity and selectivity. This comprehensive review presents a systematic analysis of VOCs monitoring technologies for plant diseases diagnosis, providing insights into their distinct advantages and limitations. Special emphasis is placed on custom-made VOCs sensors, with detailed discussions on their design, working principles, and detection performance. It is noteworthy that the application of VOCs monitoring technologies in the diagnostic process of plant diseases is still in its emerging stage, and several critical challenges demand attention and improvement. Specifically, the identification of specific stress factors using a single VOC sensor remains a formidable task, while environmental factors like humidity can potentially interfere with sensor readings, leading to inaccuracies. Future advancements should primarily focus on addressing these challenges to enhance the overall efficacy and reliability of VOCs monitoring technologies in the field of plant disease diagnosis.
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Affiliation(s)
- Ziyu Gan
- College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Qin'an Zhou
- College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Chengyu Zheng
- College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Jun Wang
- College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China.
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Agho CA, Runno-Paurson E, Tähtjärv T, Kaurilind E, Niinemets Ü. Variation in Leaf Volatile Emissions in Potato ( Solanum tuberosum) Cultivars with Different Late Blight Resistance. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112100. [PMID: 37299080 DOI: 10.3390/plants12112100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/28/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023]
Abstract
Volatile organic compounds (VOCs) play key roles in plant abiotic and biotic stress resistance, but even for widespread crops, there is limited information on variations in the magnitude and composition of constitutive VOC emissions among cultivars with varying stress resistance. The foliage VOC emissions from nine local and commercial potato cultivars (Alouette, Sarme, Kuras, Ando, Anti, Jõgeva Kollane, Teele, 1681-11, and Reet) with medium to late maturities and varying Phytophthora infestans (the causative agent of late blight disease) resistance backgrounds were analyzed to gain an insight into the genetic diversity of constitutive VOC emissions and to test the hypothesis that cultivars more resistant to Phytophthora infestans have greater VOC emissions and different VOC fingerprints. Forty-six VOCs were identified in the emission blends of potato leaves. The majority of the VOCs were sesquiterpenes (50% of the total number of compounds and 0.5-36.9% of the total emissions) and monoterpenes (30.4% of the total number of compounds and 57.8-92.5% of the total VOC emissions). Qualitative differences in leaf volatiles, mainly in sesquiterpenes, were related to the potato genotype background. Among the volatile groups, the monoterpenes α-pinene, β-pinene, Δ3-carene, limonene, and p-cymene, the sesquiterpenes (E)-β-caryophyllene and α-copaene, and green leaf volatile hexanal were the major volatiles in all cultivars. A higher share of VOCs known to have antimicrobial activities was observed. Interestingly, the cultivars were grouped into high and low resistance categories based on the VOC profiles, and the total terpenoid and total constitutive VOC emission scale positively with resistance. To support and expedite advances in breeding for resistance to diseases such as late blight disease, the plant research community must develop a fast and precise approach to measure disease resistance. We conclude that the blend of emitted volatiles is a fast, non-invasive, and promising indicator to identify cultivars resistant to potato late blight disease.
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Affiliation(s)
- C A Agho
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia
| | - E Runno-Paurson
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia
| | - T Tähtjärv
- The Centre of Estonian Rural Research and Knowledge, J. Aamisepa 1, 48309 Jõgeva, Estonia
| | - E Kaurilind
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia
| | - Ü Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia
- Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia
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7
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Sarkar AK, Sadhukhan S. Unearthing the alteration in plant volatiles induced by mycorrhizal fungi: A shield against plant pathogens. PHYSIOLOGIA PLANTARUM 2023; 175:e13845. [PMID: 36546667 DOI: 10.1111/ppl.13845] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Plants produce a large range of structurally varied low molecular weight secondary metabolites, which evaporate, known as volatile organic compounds (VOCs). Several of them are emitted in response to biotic stress as a defensive measure against pathogen attacks. Arbuscular Mycorrhizal Fungi (AMFs) can change the VOC pattern in parts of the plant and may promote plant defense via direct or indirect mechanisms. Mycorrhization of plants positively affects plant immunization along with growth and yield. The presence of AMF may raise the concentration of phenolic compounds and the activity of critical defense-related enzymes. AMF-induced changes in plant chemistry and associated volatile emissions lead to stronger immunity against pathogenic microorganisms. Despite substantial research into the origins of diversity in VOC-mediated plant communication, very little is known about the mechanism of influence of several AMFs on plant VOC emissions and modulation of plant immunization. Moreover, the molecular mechanism for VOC sensing in plants and mycorrhizal association is still unclear. In the present review, we have presented an up-to-date understanding of the cross-talk of AMF and VOC patterns in plants and the subsequent modulation of resistance against microbial pathogens.
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Affiliation(s)
- Anup Kumar Sarkar
- Department of Botany, Dukhulal Nibaran Chandra College, Murshidabad, West Bengal, India
- Plant Molecular Biology Laboratory, Department of Botany, Raiganj University, Uttar Dinajpur, West Bengal, India
| | - Sanjoy Sadhukhan
- Plant Molecular Biology Laboratory, Department of Botany, Raiganj University, Uttar Dinajpur, West Bengal, India
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Meischner M, Haberstroh S, Daber LE, Kreuzwieser J, Caldeira MC, Schnitzler JP, Werner C. Soil VOC emissions of a Mediterranean woodland are sensitive to shrub invasion. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:967-978. [PMID: 35661369 DOI: 10.1111/plb.13445] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Many belowground processes, such as soil respiration and soil-atmosphere VOC (volatile organic compounds) exchange, are closely linked to soil microbiological processes. However, little is known about how changes in plant species cover, i.e. after plant invasion, alter these soil processes. In particular, the response of soil VOC emissions to plant invasion is not well understood. We analysed soil VOC emissions and soil respiration of a Mediterranean cork oak (Quercus suber) ecosystem, comparing soil VOC emissions from a non-invaded Q. suber woodland to one invaded by the shrub Cistus ladanifer. Soil VOC emissions were determined under controlled conditions using online proton-transfer time-of-flight mass spectrometry. Net soil VOC emissions were measured by exposing soils with or without litter to different temperature and soil moisture conditions. Soil VOC emissions were sensitive to C. ladanifer invasion. Highest net emission rates were determined for oxygenated VOC (acetaldehyde, acetone, methanol, acetic acid), and high temperatures enhanced total VOC emissions. Invasion affected the relative contribution of various VOC. Methanol and acetaldehyde were emitted exclusively from litter and were associated with the non-invaded sites. In contrast, acetone emissions increased in response to shrub presence. Interestingly, low soil moisture enhanced the effect of shrub invasion on VOC emissions. Our results indicate that shrub invasion substantially influences important belowground processes in cork oak ecosystems, in particular soil VOC emissions. High soil moisture is suggested to diminish the invasion effect through a moisture-induced increase in microbial decomposition rates of soil VOC.
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Affiliation(s)
- M Meischner
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
| | - S Haberstroh
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
| | - L E Daber
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
| | - J Kreuzwieser
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
| | - M C Caldeira
- Forest Research Centre, School of Agriculture, University of Lisbon, Lisbon, Portugal
| | - J-P Schnitzler
- Research Unit Environmental Simulation, Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Neuherberg, Germany
| | - C Werner
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
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Valencia-Ortiz M, Sankaran S. Development of a semi-automated volatile organic compounds (VOCs) sampling system for field asymmetric ion mobility spectrometry (FAIMS) analysis. HARDWAREX 2022; 12:e00344. [PMID: 36033547 PMCID: PMC9403554 DOI: 10.1016/j.ohx.2022.e00344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/24/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
In recent years, applications of volatile organic compounds (VOCs) sensing technologies such as field asymmetric-waveform ion-mobility spectrometry (FAIMS) system in agriculture have accelerated. FAIMS system for VOCs sensing is attractive as it offers high sensitivity, selectivity, real-time monitoring, and portability. However, the development of a robust instrumentation system is needed for precise sampling, high accumulation of VOCs, and careful handling of samples. In this study, we developed a simple semi-automated VOC sampling (SAVS) system using a Raspberry Pi microcontroller, flowmeters, electromechanical solenoid, and cellphone-based app to control cleaning and sampling loops. The system was compared with customized headspace sampling apparatus (CHSA) and validated with a biomarker (acetone) identified to be associated with potato rot development during postharvest storage. The standard error within ion current data across different compensation voltage was lower using the SAVS system than the CHSA. In addition, the maximum peak values across scans displayed a high coefficient of variation using the CHSA (16.23%) than the SAVS system (4.51%). Future work will involve improving system efficiency by adapting multiple sample units, system miniaturization, and automating the flowmeter operation. Such automation is critical to characterize VOCs precisely and automatically across several samples for multiple applications such as pathogen detection, evaluation of crop responses, etc.
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Elicitor-Induced VOC Emission by Grapevine Leaves: Characterisation in the Vineyard. Molecules 2022; 27:molecules27186028. [PMID: 36144763 PMCID: PMC9501231 DOI: 10.3390/molecules27186028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 09/08/2022] [Accepted: 09/10/2022] [Indexed: 11/17/2022] Open
Abstract
The present study is aimed at determining whether leaf volatile organic compounds (VOCs) are good markers of the grapevine response to defence elicitors in the field. It was carried out in two distinct French vineyards (Burgundy and Bordeaux) over 3 years. The commercial elicitor Bastid® (Syngenta, Saint-Sauveur, France) (COS-OGA) was first used to optimise the VOCs’ capture in the field; by bagging stems together with a stir bar sorptive extraction (SBSE) sensor. Three elicitors (Bastid®, copper sulphate and methyl jasmonate) were assessed at three phenological stages of the grapevines by monitoring stilbene phytoalexins and VOCs. Stilbene production was low and variable between treatments and phenological stages. VOCs—particularly terpenes—were induced by all elicitors. However, the response profiles depended on the type of elicitor, the phenological stage and the vineyard, and no sole common VOC was found. The levels of VOC emissions discriminated between weak (Bastid® and copper sulphate) and strong (methyl jasmonate) inducers. Ocimene isomers were constitutively present in the overall blends of the vineyards and increased by the elicitors’ treatments, whilst other VOCs were newly released throughout the growing seasons. Nonetheless, the plant development and climate factors undoubtedly influenced the release and profiles of the leaf VOCs.
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Electroantennographic Responses of Wild and Laboratory-Reared Females of Xyleborus affinis Eichhoff and Xyleborus ferrugineus (Fabricius) (Coleoptera: Curculionidae: Scolytinae) to Ethanol and Bark Volatiles of Three Host-Plant Species. INSECTS 2022; 13:insects13070655. [PMID: 35886831 PMCID: PMC9320532 DOI: 10.3390/insects13070655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 02/04/2023]
Abstract
Simple Summary The ambrosia beetles Xyleborus affinis and Xyleborus ferrugineus are wood borers reported as secondary vectors of pathogenic fungi that cause lethal vascular diseases in mango, cacao, and trees within the laurel family. The use of specific attractants or repellants is one potential method for monitoring or controlling these pests. Chemical ecology studies to develop such tools often use wild or laboratory-reared beetles without first determining whether there are differences in their responses. We compared the antennal olfactory responses of wild and laboratory-reared X. affinis and X. ferrugineus to bark odors of gumbo-limbo (Bursera simaruba), mango (Mangifera indica) and chinini (Persea schiedeana) with different aging times and used GC–MS to analyze the chemical composition of these bark odors. The antennal responses of laboratory-reared and wild females differed in X. affinis and X. ferrugineus when interacting with odors. In addition, both beetle species displayed stronger antennal responses to aged bark odors of gumbo-limbo and chinini, apparently due to changes in volatile emissions over time. Abstract Chemical ecology studies on ambrosia beetles are typically conducted with either wild or laboratory-reared specimens. Unlike laboratory-reared insects, important aspects that potentially influence behavioral responses, such as age, physiological state, and prior experience are unknown in wild specimens. In this study, we compared the electroantennographic (EAG) responses of laboratory-reared and wild X. affinis and X. ferrugineus to 70% ethanol and bark odors (host kairomones) of Bursera simaruba, Mangifera indica, and Persea schiedeana aged for 2, 24, and 48 h. Chemical analyses of each odor treatment (bark species x length of aging) were performed to determine their volatilome composition. EAG responses were different between laboratory-reared and wild X. ferrugineus when exposed to ethanol, whereas wild X. affinis exhibited similar EAG responses to the laboratory-reared insects. Ethanol elicited the strongest olfactory responses in both species. Among the bark-odors, the highest responses were triggered by B. simaruba at 48 h in X. affinis, and P. schiedeana at 24 and 48 h in X. ferrugineus. Volatile profiles varied among aged bark samples; 3-carene and limonene were predominant in B. simaruba, whereas α-copaene and α-cubebene were abundant in P. schiedeana. Further studies are needed to determine the biological function of B. simaruba and P. schiedeana terpenes on X. affinis and X. ferrugineus, and their potential application for the development of effective lures.
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Blassioli-Moraes MC, Venzon M, Silveira LCP, Gontijo LM, Togni PHB, Sujii ER, Haro MM, Borges M, Michereff MFF, de Aquino MFS, Laumann RA, Caulfield J, Birkett M. Companion and Smart Plants: Scientific Background to Promote Conservation Biological Control. NEOTROPICAL ENTOMOLOGY 2022; 51:171-187. [PMID: 35020181 DOI: 10.1007/s13744-021-00939-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
To attain sustainable agricultural crop protection, tools such as host plant resistance, enhanced ecosystem services (i.e. conserving natural enemies) and the deployment of companion plants should be promoted in pest management programmes. These agro system manipulations could be based on chemical ecology studies considering the interactions with natural enemies and pests, regarding specifically plant defence signalling. Further, new crop protection strategies might rise from widening the knowledge regarding how herbivore-induced plant volatiles can govern a multifaceted defence response including natural enemy recruitment, pest repellence or induced defence in neighbouring plants. It is crucial to use a multitrophic approach to understand better the interactions involving companion plants, herbivores and natural enemies in the field, increasing the knowledge to build more efficient and sustainable pest management strategies. In this review, we explore the perspectives of companion plants and their semiochemicals to promote conservation biological control according to the 'smart plants' concept. Further, we discuss the advantages and disadvantages of using companion plants and explore the application of companion plants in different agroecosystems using several case studies.
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Affiliation(s)
| | - Madelaine Venzon
- Agriculture and Livestock Research Enterprise of Minas Gerais (EPAMIG), Viçosa, Minas Gerais, Brazil
| | | | - Lessando Moreira Gontijo
- Programa de Pós-Graduação em Manejo e Conservação de Ecossistemas Naturais e Agrários, Univ Federal de Viçosa (UFV), Florestal, Minas Gerais, Brazil
| | | | - Edison Ryoiti Sujii
- Lab de Semioquímicos, EMBRAPA Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil
| | - Marcelo Mendes Haro
- Agricultural Research and Rural Extension Company of Santa Catarina (EPAGRI), Itajaí, Santa Catarina, Brazil
| | - Miguel Borges
- Lab de Semioquímicos, EMBRAPA Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil
| | | | | | - Raúl Alberto Laumann
- Lab de Semioquímicos, EMBRAPA Recursos Genéticos e Biotecnologia, Brasília, DF, 70770-917, Brazil.
| | - John Caulfield
- Biointeractions and Crop Protection Dept, Rothamsted Research, Harpenden, Hertfordshire, UK
| | - Michael Birkett
- Biointeractions and Crop Protection Dept, Rothamsted Research, Harpenden, Hertfordshire, UK
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Santos H, Augusto C, Reis P, Rego C, Figueiredo AC, Fortes AM. Volatile Metabolism of Wine Grape Trincadeira: Impact of Infection with Botrytis cinerea. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11010141. [PMID: 35009143 PMCID: PMC8747702 DOI: 10.3390/plants11010141] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 05/27/2023]
Abstract
The aroma of grapes is cultivar dependent and is influenced by terroir, vineyard practices, and abiotic and biotic stresses. Trincadeira is a non-aromatic variety associated with low phenolic content and high sugar and organic acid levels. This cultivar, widely used in Portuguese wines, presents high susceptibility to Botrytis cinerea. This work aimed to characterise the volatile profile of Trincadeira grapes and how it changes under infection with B. cinerea. Thirty-six volatile organic compounds were identified, from different functional groups, namely alcohols, ester acetates, fatty acid esters, fatty acids, aldehydes, and products of the lipoxygenase pathway. Both free and glycosidic volatile organic compounds were analysed by Gas Chromatography and Gas Chromatography coupled to Mass Spectrometry for component quantification and identification, respectively. A multivariance analysis showed a clear discrimination between healthy and infected grapes with 2-trans-hexenal and isoamyl-acetate among the compounds identified as negative and positive markers of infection, respectively. Ester acetates such as 2-phenylethyl acetate, isoamyl acetate, and 2-methylbutyl acetate were present in higher contents in infected samples, whereas the contents of several fatty acid esters, such as ethyl decanoate and ethyl dodecanoate, decreased. These data were integrated with quantitative PCR data regarding genes involved in volatile metabolism and showed up-regulation of a gene coding for Hydroperoxide Lyase 2 in infected grapes. Altogether, these changes in volatile metabolism indicate an impact on the grape quality and may be related to defence against B. cinerea. The presence/absence of specific compounds might be used as infection biomarkers in the assessment of Trincadeira grapes' quality.
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Affiliation(s)
- Helena Santos
- BioISI—Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal; (H.S.); (C.A.)
| | - Catarina Augusto
- BioISI—Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal; (H.S.); (C.A.)
| | - Pedro Reis
- LEAF—Linking Landscape, Environment, Agriculture and Food-Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (P.R.); (C.R.)
| | - Cecília Rego
- LEAF—Linking Landscape, Environment, Agriculture and Food-Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (P.R.); (C.R.)
| | - Ana Cristina Figueiredo
- Centro de Estudos do Ambiente e do Mar (CESAM Lisboa), Faculdade de Ciências da Universidade de Lisboa, Centro de Biotecnologia Vegetal (CBV), DBV, C2, Piso 1, Campo Grande, 1749-016 Lisboa, Portugal;
| | - Ana Margarida Fortes
- BioISI—Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisboa, Portugal; (H.S.); (C.A.)
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14
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Yuan X, Feng Z, Hu C, Zhang K, Qu L, Paoletti E. Effects of elevated ozone on the emission of volatile isoprenoids from flowers and leaves of rose (Rosa sp.) varieties. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118141. [PMID: 34517180 DOI: 10.1016/j.envpol.2021.118141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/13/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Tropospheric ozone (O3) affects isoprenoid emissions, and floral emissions in particular, which may result in potential impacts on the interactions of plants with other organisms. The effects of ozone (O3) on isoprenoid emissions have been investigated for many years, while knowledge on O3 effects on floral emissions is still scarce and the relevant mechanism has not been clarified so far. We investigated the effects of O3 on floral and foliar isoprenoid emissions (mainly isoprene, monoterpenes and sesquiterpenes) and their synthase substrates from three rose varieties (CH, Rosa chinensis Jacq. var. chinensis; SA, R. hybrida 'Saiun'; MO, R. hybrida 'Monica Bellucci') at different exposure durations. Results indicated that the O3-induced stimulation after short-term exposure (35 days after the beginning of O3 exposure) was significant only for sesquiterpene emissions from flowers, while long-term O3 exposure (90 days after the beginning of O3 exposure) significantly decreased both foliar and floral monoterpene and sesquiterpene emissions. In addition, the observed decline of emissions under long-term O3 exposure resulted from the limitation of synthase substrates, and the responses of emissions and substrates varied among varieties, with the greatest variation in the O3-sensitive variety. These findings provide important insights on plant isoprenoid emissions and species selection for landscaping, especially in areas with high O3 concentration.
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Affiliation(s)
- 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
| | - Zhaozhong Feng
- School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Chunfang Hu
- 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; Department of Environmental Science and Engineering, Beijing Technology and Business University, Beijing, 100048, China
| | - Kun Zhang
- 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; Department of Environmental Science and Engineering, China University of Mining and Technology, Beijing, 100083, China
| | - Laiye Qu
- 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.
| | - Elena Paoletti
- 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; Institute of Research on Terrestrial Ecosystems, National Research Council, via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy
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15
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Li S, Yuan X, Xu Y, Li Z, Feng Z, Yue X, Paoletti E. Biogenic volatile organic compound emissions from leaves and fruits of apple and peach trees during fruit development. J Environ Sci (China) 2021; 108:152-163. [PMID: 34465429 DOI: 10.1016/j.jes.2021.02.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 06/13/2023]
Abstract
Biogenic volatile organic compounds (BVOCs) are widely involved in a variety of atmospheric chemical processes due to their high reactivity and species diversity. To date, however, research on BVOCs in agroecosystems, particularly fruit trees, remains scarce despite their large cultivation area and economic interest. BVOC emissions from different organs (leaf or fruit) of apple and peach trees were investigated throughout the stages of fruit development (FS, fruit swelling; FC, fruit coloration; FM, fruit maturity; and FP, fruit postharvest) using a proton-transfer-reaction mass spectrometer. Results indicated that methanol was the most abundant compound emitted by the leaf (apple tree leaf 492.5 ± 47.9 ng/(g·hr), peach tree leaf 938.8 ± 154.5 ng/(g·hr)), followed by acetic acid and green leaf volatiles. Beside the above three compounds, acetaldehyde had an important contribution to the emissions from the fruit. Overall, the total BVOCs (sum of eight compounds studied in this paper) emitted by both leaf and fruit gradually decreased along the fruit development, although the effect was significant only for the leaf. The leaf (2020.8 ± 258.8 ng/(g·hr)) was a stronger BVOC emitter than the fruit (146.0 ± 45.7 ng/(g·hr)) (P = 0.006), and there were no significant differences in total BVOC emission rates between apple and peach trees. These findings contribute to our understanding on BVOC emissions from different plant organs and provide important insights into the variation of BVOC emissions across different fruit developmental stages.
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Affiliation(s)
- Shuangjiang Li
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Xiangyang Yuan
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yan Xu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhengzhen Li
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhaozhong Feng
- Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Xu Yue
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Elena Paoletti
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Institute of Research on Terrestrial Ecosystems, National Council of Research, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Florence, Italy
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16
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Kim MH, Lee SM, An KW, Lee MJ, Park DH. Usage of Natural Volatile Organic Compounds as Biological Modulators of Disease. Int J Mol Sci 2021; 22:ijms22179421. [PMID: 34502333 PMCID: PMC8430758 DOI: 10.3390/ijms22179421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 02/07/2023] Open
Abstract
Plants produce a wide variety of natural volatile organic compounds (NVOCs), many of which are unique to each species. These compounds serve many purposes, such as fending off herbivores and adapting to changes in temperature and water supply. Interestingly, although NVOCs are synthesized to deter herbivores, many of these compounds have been found to possess several therapeutic qualities, such as promoting nerve stability, enhancing sleep, and suppressing hyperresponsiveness, in addition to acting as antioxidants and anti-inflammatory agents. Therefore, many NVOCs are promising drug candidates for disease treatment and prevention. Given their volatile nature, these compounds can be administered to patients through inhalation, which is often more comfortable and convenient than other administration routes. However, the development of NVOC-based drug candidates requires a careful evaluation of the molecular mechanisms that drive their therapeutic properties to avoid potential adverse effects. Furthermore, even compounds that appear generally safe might have toxic effects depending on their dose, and therefore their toxicological assessment is also critical. In order to enhance the usage of NVOCs this short review focuses not only on the biological activities and therapeutic mode of action of representative NVOCs but also their toxic effects.
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Affiliation(s)
- Min-Hee Kim
- College of Korean Medicine, Dongshin University, Naju 58245, Korea;
| | - Seung-Min Lee
- School of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Korea;
| | - Ki-Wan An
- Department of Forest Resources, Chonnam National University, Gwangju 61186, Korea;
| | - Min-Jae Lee
- School of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Korea;
- Correspondence: (M.-J.L.); (D.-H.P.)
| | - Dae-Hun Park
- College of Korean Medicine, Dongshin University, Naju 58245, Korea;
- Correspondence: (M.-J.L.); (D.-H.P.)
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17
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Silva P, Freitas J, Nunes FM, Câmara JS. A Predictive Strategy Based on Volatile Profile and Chemometric Analysis for Traceability and Authenticity of Sugarcane Honey on the Global Market. Foods 2021; 10:1559. [PMID: 34359428 PMCID: PMC8305931 DOI: 10.3390/foods10071559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/14/2021] [Accepted: 07/01/2021] [Indexed: 11/17/2022] Open
Abstract
Sugarcane honey (SCH) is a syrup produced on Madeira Island and recognized by its unique aroma, a complex attribute of quality with an important influence on the final consumer's acceptance of the product, and determined by a complex mixture of a large number of volatile organic compounds (VOCs) generated during its traditional making process and storage. Therefore, the purpose of this study was to establish the volatile profile of genuine SCH produced by a regional certified producer for seven years and compare it with syrups from non-certified regional producers and with producers from different geographical regions (Spain, Egypt, Brazil and Australia), as a powerful strategy to define the volatomic fingerprint of SCH. Different volatile profiles were recognized for all samples, with 166 VOCs being identified belonging to different chemical classes, including furans, ketones, carboxylic acids, aldehydes and alcohols. Chemometric analysis allowed (i) the differentiation between all syrups, being more pronounced between SCH and other syrups; and (ii) the identification of 32 VOCs as potential markers for the traceability and authenticity of SCH on the global market.
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Affiliation(s)
- Pedro Silva
- CQM—Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal; (P.S.); (J.F.)
| | - Jorge Freitas
- CQM—Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal; (P.S.); (J.F.)
| | - Fernando M. Nunes
- CQ-VR—Centro de Química-Vila Real, Food and Wine Chemistry Lab., Departamento de Química, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
| | - José S. Câmara
- CQM—Centro de Química da Madeira, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal; (P.S.); (J.F.)
- Departamento de Química, Faculdade de Ciências Exactas e Engenharia, Campus da Penteada, Universidade da Madeira, 9020-105 Funchal, Portugal
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18
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Kask K, Kaurilind E, Talts E, Kännaste A, Niinemets Ü. Combined Acute Ozone and Water Stress Alters the Quantitative Relationships between O 3 Uptake, Photosynthetic Characteristics and Volatile Emissions in Brassica nigra. Molecules 2021; 26:molecules26113114. [PMID: 34070994 PMCID: PMC8197083 DOI: 10.3390/molecules26113114] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 11/16/2022] Open
Abstract
Ozone (O3) entry into plant leaves depends on atmospheric O3 concentration, exposure time and openness of stomata. O3 negatively impacts photosynthesis rate (A) and might induce the release of reactive volatile organic compounds (VOCs) that can quench O3, and thereby partly ameliorate O3 stress. Water stress reduces stomatal conductance (gs) and O3 uptake and can affect VOC release and O3 quenching by VOC, but the interactive effects of O3 exposure and water stress, as possibly mediated by VOC, are poorly understood. Well-watered (WW) and water-stressed (WS) Brassica nigra plants were exposed to 250 and 550 ppb O3 for 1 h, and O3 uptake rates, photosynthetic characteristics and VOC emissions were measured through 22 h recovery. The highest O3 uptake was observed in WW plants exposed to 550 ppb O3 with the greatest reduction and poorest recovery of gs and A, and elicitation of lipoxygenase (LOX) pathway volatiles 10 min-1.5 h after exposure indicating cellular damage. Ozone uptake was similar in 250 ppb WW and 550 ppb WS plants and, in both treatments, O3-dependent reduction in photosynthetic characteristics was moderate and fully reversible, and VOC emissions were little affected. Water stress alone did not affect the total amount and composition of VOC emissions. The results indicate that drought ameliorated O3 stress by reducing O3 uptake through stomatal closure and the two stresses operated in an antagonistic manner in B. nigra.
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Affiliation(s)
- Kaia Kask
- Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia; (E.K.); (E.T.); (A.K.); (Ü.N.)
- Correspondence:
| | - Eve Kaurilind
- Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia; (E.K.); (E.T.); (A.K.); (Ü.N.)
| | - Eero Talts
- Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia; (E.K.); (E.T.); (A.K.); (Ü.N.)
| | - Astrid Kännaste
- Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia; (E.K.); (E.T.); (A.K.); (Ü.N.)
| | - Ülo Niinemets
- Chair of Crop Science and Plant Biology, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51006 Tartu, Estonia; (E.K.); (E.T.); (A.K.); (Ü.N.)
- Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia
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19
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Silva P, Freitas J, Nunes FM, Câmara JS. Chemical Differentiation of Sugarcane Cultivars Based on Volatile Profile and Chemometric Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:3548-3558. [PMID: 33719431 DOI: 10.1021/acs.jafc.0c07554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Sugarcane (SC) is a perennial grass widely cultivated in tropical and subtropical regions. However, its cultivation in Europe is residual, where Madeira Island, Portugal, is the only region where SC continues to be extensively cultivated. For the first time, the volatile profiles of regional cultivars were established by solid-phase microextraction combined with gas chromatography-mass spectrometry. Different volatile profiles for each cultivar were recognized, identifying 260 volatile organic compounds belonging to 15 chemical classes, such as aldehydes, alcohols, ketones, hydrocarbons, esters, and terpenes. Chemometric analysis procedure, namely, one-way ANOVA with Tukey's test, principal component analysis, partial least-square analysis, linear discriminant analysis, and hierarchical clustering analysis, allowed the differentiation between all regional cultivars. This study represents an important contribution for the maintenance of biodiversity and subsistence of the SC industry in Europe. Furthermore, it is also a valuable contribution to establish the typicality of traditional SC-based products, such as SC honey.
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Affiliation(s)
- Pedro Silva
- CQM, Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Jorge Freitas
- CQM, Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Fernando M Nunes
- CQ-VR, Centro de Química-Vila Real, Departamento de Química, Universidade de Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal
| | - José S Câmara
- CQM, Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- Departamento de Química, Faculdade de Ciências Exactas e Engenharia, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
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20
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Kushwaha K, Saini SS, Waghmode B, Gaid M, Agrawal PK, Roy P, Sircar D. Volatile components in papaya fruits are the non-invasive biomarkers to monitor the ripening stage and the nutritional value. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-020-03673-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Dehimeche N, Buatois B, Bertin N, Staudt M. Insights into the Intraspecific Variability of the above and Belowground Emissions of Volatile Organic Compounds in Tomato. Molecules 2021; 26:molecules26010237. [PMID: 33466378 PMCID: PMC7796079 DOI: 10.3390/molecules26010237] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 11/16/2022] Open
Abstract
The in-vivo monitoring of volatile organic compound (VOC) emissions is a potential non-invasive tool in plant protection, especially in greenhouse cultivation. We studied VOC production from above and belowground organs of the eight parents of the Multi-Parent Advanced Generation Intercross population (MAGIC) tomato population, which exhibits a high genetic variability, in order to obtain more insight into the variability of constitutive VOC emissions from tomato plants under stress-free conditions. Foliage emissions were composed of terpenes, the majority of which were also stored in the leaves. Foliage emissions were very low, partly light-dependent, and differed significantly among genotypes, both in quantity and quality. Soil with roots emitted VOCs at similar, though more variable, rates than foliage. Soil emissions were characterized by terpenes, oxygenated alkanes, and alkenes and phenolic compounds, only a few of which were found in root extracts at low concentrations. Correlation analyses revealed that several VOCs emitted from foliage or soil are jointly regulated and that above and belowground sources are partially interconnected. With respect to VOC monitoring in tomato crops, our results underline that genetic variability, light-dependent de-novo synthesis, and belowground sources are factors to be considered for successful use in crop monitoring.
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Affiliation(s)
- Nafissa Dehimeche
- Centre d’Ecologie Fonctionnelle et Evolutive, CNRS-Université Montpellier-Université Paul-Valéry Montpellier–EPHE, Campus CNRS, CEDEX 5, F-34293 Montpellier, France; (N.D.); (B.B.)
| | - Bruno Buatois
- Centre d’Ecologie Fonctionnelle et Evolutive, CNRS-Université Montpellier-Université Paul-Valéry Montpellier–EPHE, Campus CNRS, CEDEX 5, F-34293 Montpellier, France; (N.D.); (B.B.)
| | - Nadia Bertin
- INRAE, UR115 Plantes et Systèmes de Culture Horticoles, Site Agroparc, 84914 Avignon, France;
| | - Michael Staudt
- Centre d’Ecologie Fonctionnelle et Evolutive, CNRS-Université Montpellier-Université Paul-Valéry Montpellier–EPHE, Campus CNRS, CEDEX 5, F-34293 Montpellier, France; (N.D.); (B.B.)
- Correspondence: ; Tel.: +33-467613272
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22
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Rosset SL, Oakley CA, Ferrier-Pagès C, Suggett DJ, Weis VM, Davy SK. The Molecular Language of the Cnidarian-Dinoflagellate Symbiosis. Trends Microbiol 2020; 29:320-333. [PMID: 33041180 DOI: 10.1016/j.tim.2020.08.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/21/2020] [Accepted: 08/27/2020] [Indexed: 12/18/2022]
Abstract
The cnidarian-dinoflagellate symbiosis is of huge importance as it underpins the success of coral reefs, yet we know very little about how the host cnidarian and its dinoflagellate endosymbionts communicate with each other to form a functionally integrated unit. Here, we review the current knowledge of interpartner molecular signaling in this symbiosis, with an emphasis on lipids, glycans, reactive species, biogenic volatiles, and noncoding RNA. We draw upon evidence of these compounds from recent omics-based studies of cnidarian-dinoflagellate symbiosis and discuss the signaling roles that they play in other, better-studied symbioses. We then consider how improved knowledge of interpartner signaling might be used to develop solutions to the coral reef crisis by, for example, engineering more thermally resistant corals.
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Affiliation(s)
- Sabrina L Rosset
- School of Biological Sciences, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Clinton A Oakley
- School of Biological Sciences, Victoria University of Wellington, Wellington 6140, New Zealand
| | | | - David J Suggett
- University of Technology Sydney, Climate Change Cluster, Faculty of Science, PO Box 123, Broadway NSW 2007, Australia
| | - Virginia M Weis
- Department of Integrative Biology, Oregon State University, Corvallis, OR 97331, USA
| | - Simon K Davy
- School of Biological Sciences, Victoria University of Wellington, Wellington 6140, New Zealand.
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Yáñez-Serrano AM, Bourtsoukidis E, Alves EG, Bauwens M, Stavrakou T, Llusià J, Filella I, Guenther A, Williams J, Artaxo P, Sindelarova K, Doubalova J, Kesselmeier J, Peñuelas J. Amazonian biogenic volatile organic compounds under global change. GLOBAL CHANGE BIOLOGY 2020; 26:4722-4751. [PMID: 32445424 DOI: 10.1111/gcb.15185] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Biogenic volatile organic compounds (BVOCs) play important roles at cellular, foliar, ecosystem and atmospheric levels. The Amazonian rainforest represents one of the major global sources of BVOCs, so its study is essential for understanding BVOC dynamics. It also provides insights into the role of such large and biodiverse forest ecosystem in regional and global atmospheric chemistry and climate. We review the current information on Amazonian BVOCs and identify future research priorities exploring biogenic emissions and drivers, ecological interactions, atmospheric impacts, depositional processes and modifications to BVOC dynamics due to changes in climate and land cover. A feedback loop between Amazonian BVOCs and the trends of climate and land-use changes in Amazonia is then constructed. Satellite observations and model simulation time series demonstrate the validity of the proposed loop showing a combined effect of climate change and deforestation on BVOC emission in Amazonia. A decreasing trend of isoprene during the wet season, most likely due to forest biomass loss, and an increasing trend of the sesquiterpene to isoprene ratio during the dry season suggest increasing temperature stress-induced emissions due to climate change.
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Affiliation(s)
- Ana M Yáñez-Serrano
- CREAF, Cerdanyola del Vallès, Spain
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, Spain
| | - Efstratios Bourtsoukidis
- Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry, Mainz, Germany
| | - Eliane G Alves
- Department of Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Maite Bauwens
- Royal Belgian Institute for Space Aeronomy, Brussels, Belgium
| | | | - Joan Llusià
- CREAF, Cerdanyola del Vallès, Spain
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, Spain
| | - Iolanda Filella
- CREAF, Cerdanyola del Vallès, Spain
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, Spain
| | - Alex Guenther
- Department of Earth System Science, University of California, Irvine, CA, USA
| | - Jonathan Williams
- Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry, Mainz, Germany
| | - Paulo Artaxo
- Instituto de Física, Universidade de Sao Paulo, São Paulo, Brazil
| | - Katerina Sindelarova
- Faculty of Mathematics and Physics, Department of Atmospheric Physics, Charles University, Prague, Czechia
| | - Jana Doubalova
- Faculty of Mathematics and Physics, Department of Atmospheric Physics, Charles University, Prague, Czechia
- Modelling and Assessment Department, Czech Hydrometeorological Institute, Prague, Czechia
| | - Jürgen Kesselmeier
- Atmospheric Chemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry, Mainz, Germany
| | - Josep Peñuelas
- CREAF, Cerdanyola del Vallès, Spain
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Cerdanyola del Vallès, Spain
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Abstract
It is known that the urban environment amplifies the effects of climate change, sometimes with disastrous consequences that put people at risk. These aspects can be affected by urban vegetation and planting design but, while there are thousands of papers related to the effects of climate change, a relatively limited number of them are directly aimed at investigating the role of vegetation as a mitigating factor in the urban context. This paper focuses on reviewing the research on the role of urban vegetation in alleviating the adverse conditions of the urban environment in order to provide some practical guidelines to be applied by city planners. Through an analysis of the documents found in Scopus, Web of Science, and Google Scholar using urban vegetation and climate change-related keywords we selected five major issues related to the urban environment: (1) particulate matter, (2) gaseous pollution, (3) noise pollution, (4) water runoff, (5) urban heat island effect. The analysis of existing knowledge reported here indicates that the roles of urban vegetation on the adverse effect of climate change could not be simply deemed positive or negative, because the role of urban green is also strongly linked to the structure, composition, and distribution of vegetation, as well as to the criteria used for management. Therefore, it could help to better understand the roles of urban green as a complex system and provide the foundation for future studies.
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25
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Lo Scalzo R, Campanelli G, Paolo D, Fibiani M, Bianchi G. Influence of organic cultivation and sampling year on quality indexes of sweet pepper during 3 years of production. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03492-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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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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27
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Park J, Thomasson JA, Gale CC, Sword GA, Lee KM, Herrman TJ, Suh CPC. Adsorbent-SERS Technique for Determination of Plant VOCs from Live Cotton Plants and Dried Teas. ACS OMEGA 2020; 5:2779-2790. [PMID: 32095701 PMCID: PMC7033990 DOI: 10.1021/acsomega.9b03500] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 01/29/2020] [Indexed: 05/08/2023]
Abstract
We developed a novel substrate for the collection of volatile organic compounds (VOCs) emitted from either living or dried plant material to be analyzed by surface-enhanced Raman spectroscopy (SERS). We demonstrated that this substrate can be utilized to differentiate emissions from blends of three teas, and to differentiate emissions from healthy cotton plants versus caterpillar-infested cotton plants. The substrate we developed can adsorb VOCs in static headspace sampling environments, and VOCs naturally evaporated from three standards were successfully identified by our SERS substrate, showing its ability to differentiate three VOCs and to detect quantitative differences according to collection times. In addition, volatile profiles from plant materials that were either qualitatively different among three teas or quantitatively different in abundance between healthy and infested cotton plants were confirmed by collections on Super-Q resin for dynamic headspace and solid-phase microextraction for static headspace sampling, respectively, followed by gas chromatography to mass spectrometry. Our results indicate that both qualitative and quantitative differences can also be detected by our SERS substrate although we find that the detection of quantitative differences could be improved.
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Affiliation(s)
- Jinhyuk Park
- Department
of Biological and Agricultural Engineering, Texas A&M University, College Station, Texas 77843, United States
- E-mail: . Tel: +1-979-224-7055
| | - J. Alex Thomasson
- Department
of Biological and Agricultural Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Cody C. Gale
- Department
of Entomology, Texas A&M University, College Station, Texas 77843-2475, United States
| | - Gregory A. Sword
- Department
of Entomology, Texas A&M University, College Station, Texas 77843-2475, United States
| | - Kyung-Min Lee
- Office
of the Texas State Chemist, Texas A&M AgriLife Research, Texas A&M University System, College Station, Texas 77841, United States
| | - Timothy J. Herrman
- Office
of the Texas State Chemist, Texas A&M AgriLife Research, Texas A&M University System, College Station, Texas 77841, United States
| | - Charles P.-C. Suh
- Insect
Control and Cotton Disease Research Unit, USDA, ARS, 2771 F&B
Road, College Station, Texas 77845, United States
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28
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Werner C, Fasbender L, Romek KM, Yáñez-Serrano AM, Kreuzwieser J. Heat Waves Change Plant Carbon Allocation Among Primary and Secondary Metabolism Altering CO 2 Assimilation, Respiration, and VOC Emissions. FRONTIERS IN PLANT SCIENCE 2020; 11:1242. [PMID: 32922421 PMCID: PMC7456945 DOI: 10.3389/fpls.2020.01242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 07/29/2020] [Indexed: 05/17/2023]
Abstract
Processes controlling plant carbon allocation among primary and secondary metabolism, i.e., carbon assimilation, respiration, and VOC synthesis are still poorly constrained, particularly regarding their response to stress. To investigate these processes, we simulated a 10-day 38°C heat wave, analysing real-time carbon allocation into primary and secondary metabolism in the Mediterranean shrub Halimium halimifolium L. We traced position-specific 13C-labeled pyruvate into daytime VOC and CO2 emissions and during light-dark transition. Net CO2 assimilation strongly declined under heat, due to three-fold higher respiration rates. Interestingly, day respiration also increased two-fold. Decarboxylation of the C1-atom of pyruvate was the main process driving daytime CO2 release, whereas the C2-moiety was not decarboxylated in the TCA cycle. Heat induced high emissions of methanol, methyl acetate, acetaldehyde as well as mono- and sesquiterpenes, particularly during the first two days. After 10-days of heat a substantial proportion of 13C-labeled pyruvate was allocated into de novo synthesis of VOCs. Thus, during extreme heat waves high respiratory losses and reduced assimilation can shift plants into a negative carbon balance. Still, plants enhanced their investment into de novo VOC synthesis despite associated metabolic CO2 losses. We conclude that heat stress re-directed the proportional flux of key metabolites into pathways of VOC biosynthesis most likely at the expense of reactions of plant primary metabolism, which might highlight their importance for stress protection.
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Affiliation(s)
- Christiane Werner
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
- *Correspondence: Christiane Werner,
| | - Lukas Fasbender
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
| | | | - Ana Maria Yáñez-Serrano
- Ecosystem Physiology, University of Freiburg, Freiburg, Germany
- Center of Ecological Research and Forest Applications (CREAF), Universitat Autònoma de Barcelona, Barcelona, Spain
- Global Ecology Unit CREAF-CSIC-UAB, Cerdanyola del Vallès, Barcelona, Spain
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29
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Li M, Cappellin L, Xu J, Biasioli F, Varotto C. High-throughput screening for in planta characterization of VOC biosynthetic genes by PTR-ToF-MS. JOURNAL OF PLANT RESEARCH 2020; 133:123-131. [PMID: 31701286 PMCID: PMC6946754 DOI: 10.1007/s10265-019-01149-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 10/28/2019] [Indexed: 06/10/2023]
Abstract
Functional characterization of plant volatile organic compound (VOC) biosynthetic genes and elucidation of the biological function of their products often involve the screening of large numbers of plants from either independent transformation events or mapping populations. The low time resolution of standard gas chromatographic methods, however, represents a major bottleneck for in planta genetic characterization of VOC biosynthetic genes. Here we present a fast and highly-sensitive method for the high-throughput characterization of VOC emission levels/patterns by coupling a Proton Transfer Reaction Time-of-Flight Mass Spectrometer to an autosampler for automation of sample measurement. With this system more than 700 samples per day can be screened, detecting for each sample hundreds of spectrometric peaks in the m/z 15-300 range. As a case study, we report the characterization of VOC emissions from 116 independent Arabidopsis thaliana lines transformed with a putative isoprene synthase gene, confirming its function also when fused to a C-terminal 3×FLAG tag. We demonstrate that the method is more reliable than conventional characterization of transgene expression for the identification of the most highly isoprene-emitting lines. The throughput of this VOC screening method exceeds that of existing alternatives, potentially allowing its application to reverse and forward genetic screenings of genes contributing to VOC emission, constituting a powerful tool for the functional characterization of VOC biosynthetic genes and elucidation of the biological functions of their products directly in planta.
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Affiliation(s)
- Mingai Li
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, 38010, San Michele all' Adige, TN, Italy
| | - Luca Cappellin
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, 38010, San Michele all' Adige, TN, Italy
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35121, Padua, Italy
| | - Jia Xu
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, 38010, San Michele all' Adige, TN, Italy
- Dipartimento di Biologia, Università di Padova, Viale G. Colombo 3, 35121, Padua, Italy
| | - Franco Biasioli
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, 38010, San Michele all' Adige, TN, Italy
| | - Claudio Varotto
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, 38010, San Michele all' Adige, TN, Italy.
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30
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Tanaka M, Minamide T, Takahashi Y, Hanai Y, Yanagida T, Okochi M. Peptide Screening from a Phage Display Library for Benzaldehyde Recognition. CHEM LETT 2019. [DOI: 10.1246/cl.190318] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Masayoshi Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Taisuke Minamide
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yuta Takahashi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yosuke Hanai
- Engineering Division, Industrial Solutions Company, Panasonic Corporation, 1006 Oaza Kadoma, Kadoma, Osaka 571-8506, Japan
| | - Takeshi Yanagida
- Laboratory of Integrated Nanostructure Materials, Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Mina Okochi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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31
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Mutagenesis of odorant coreceptor Orco fully disrupts foraging but not oviposition behaviors in the hawkmoth Manduca sexta. Proc Natl Acad Sci U S A 2019; 116:15677-15685. [PMID: 31320583 PMCID: PMC6681710 DOI: 10.1073/pnas.1902089116] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The hawkmoth Manduca sexta and one of its preferred hosts in the North American Southwest, Datura wrightii, share a model insect-plant relationship based on mutualistic and antagonistic life-history traits. D. wrightii is the innately preferred nectar source and oviposition host for M. sexta Hence, the hawkmoth is an important pollinator while the M. sexta larvae are specialized herbivores of the plant. Olfactory detection of plant volatiles plays a crucial role in the behavior of the hawkmoth. In vivo, the odorant receptor coreceptor (Orco) is an obligatory component for the function of odorant receptors (ORs), a major receptor family involved in insect olfaction. We used CRISPR-Cas9 targeted mutagenesis to knock out (KO) the MsexOrco gene to test the consequences of a loss of OR-mediated olfaction in an insect-plant relationship. Neurophysiological characterization revealed severely reduced antennal and antennal lobe responses to representative odorants emitted by D. wrightii In a wind-tunnel setting with a flowering plant, Orco KO hawkmoths showed disrupted flight orientation and an ablated proboscis extension response to the natural stimulus. The Orco KO gravid female displayed reduced attraction toward a nonflowering plant. However, more than half of hawkmoths were able to use characteristic odor-directed flight orientation and oviposit on the host plant. Overall, OR-mediated olfaction is essential for foraging and pollination behaviors, but plant-seeking and oviposition behaviors are sustained through additional OR-independent sensory cues.
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32
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Kutty NN, Mitra A. Profiling of volatile and non-volatile metabolites in Polianthes tuberosa L. flowers reveals intraspecific variation among cultivars. PHYTOCHEMISTRY 2019; 162:10-20. [PMID: 30844491 DOI: 10.1016/j.phytochem.2019.02.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/12/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Polianthes tuberosa L. (tuberose) is a widely cultivated ornamental crop in Asian countries. Different cultivars of tuberose have been developed through breeding programs in India. However, no reports on floral fragrance and metabolite contents of these cultivars are available. In this study, an attempt has been made to evaluate the levels of both volatile and non-volatile metabolites from seven different cultivars of P. tuberosa. Presence of benzenoids, phenylpropanoids, terpenoids, and few fatty acid derivatives as emitted, endogenous and glycosylated forms were revealed from the studied cultivars. Further, chemometric analyses in both supervised and unsupervised manner led to identification of patterns among the cultivars. Among the seven cultivars, four distinct clusters were obtained linking to their volatiles, flavonoids and primary metabolite levels. Metabolic variations obtained from the cultivars also suggest cross-talks between phenylpropanoid, benzenoid, and flavonoid pathways. Thus metabolite profiling reported here may help in characterization of tuberose cultivars for perfumery utility and future breeding programme.
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Affiliation(s)
- Nithya N Kutty
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Adinpunya Mitra
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India.
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33
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Durenne B, Blondel A, Druart P, Fauconnier ML. Epoxiconazole exposure affects terpenoid profiles of oilseed rape plantlets based on a targeted metabolomic approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:17362-17372. [PMID: 31012076 DOI: 10.1007/s11356-019-05110-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Epoxiconazole is a broad-spectrum fungicide described as highly persistent in soil and as such can be considered as an abiotic agent like other problematic agrochemicals. Furthermore, the plant phenotyping tool involving non-invasive monitoring of plant-emitted volatile organic compounds (VOCs) may be useful in the identification of metabolic markers for abiotic stress. We therefore decided to profile the VOCs from secondary metabolism of oilseed rape through a dose-response experiment under several epoxiconazole concentrations (0, 0.01, 0.1 and 1 mg L-1). VOC collections of 35-day-old whole plantlets were performed through a dynamic headspace sampling technique under defined and controlled conditions. The plantlets grew freely within a home-made, laboratory and high-throughput glass chamber without any disturbance. Putative metabolic markers were analysed using a targeted metabolomic approach based on TD-GC-MS method coupled with data acquisition in SIM mode in order to focus on terpenes and sulphur-containing volatiles. Chromatograms of emitted terpenes were achieved accurately for the 35-day-old oilseed rape plantlets. We also analysed the presence of sulphur-containing volatiles in samples of shoot and root tissues using an innovative DHS-TD-GC-MS method, but no difference was found between qualitative profiles. Nevertheless, we demonstrated through this experiment that sesquiterpenes such as β-elemene and (E,E)-α-farnesene are involved in epoxiconazole dose-response. In particular, (E,E)-α-farnesene could serve as a metabolic marker of fungicide exposure for oilseed rape plantlets.
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Affiliation(s)
- Bastien Durenne
- Bioengineering Unit, Life Science Department, Walloon Agricultural Research Centre, 5030, Gembloux, Belgium.
| | - Alodie Blondel
- Bioengineering Unit, Life Science Department, Walloon Agricultural Research Centre, 5030, Gembloux, Belgium
| | - Philippe Druart
- Bioengineering Unit, Life Science Department, Walloon Agricultural Research Centre, 5030, Gembloux, Belgium
| | - Marie-Laure Fauconnier
- General and Organic Chemistry, Gembloux Agro-Bio Tech, University of Liège (ULiège), 5030, Gembloux, Belgium
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34
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Brilli F, Loreto F, Baccelli I. Exploiting Plant Volatile Organic Compounds (VOCs) in Agriculture to Improve Sustainable Defense Strategies and Productivity of Crops. FRONTIERS IN PLANT SCIENCE 2019; 10:264. [PMID: 30941152 PMCID: PMC6434774 DOI: 10.3389/fpls.2019.00264] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/19/2019] [Indexed: 05/19/2023]
Abstract
There is an urgent need for new sustainable solutions to support agriculture in facing current environmental challenges. In particular, intensification of productivity and food security needs require sustainable exploitation of natural resources and metabolites. Here, we bring the attention to the agronomic potential of volatile organic compounds (VOCs) emitted from leaves, as a natural and eco-friendly solution to defend plants from stresses and to enhance crop production. To date, application of VOCs is often limited to fight herbivores. Here we argue that potential applications of VOCs are much wider, as they can also protect from pathogens and environmental stresses. VOCs prime plant's defense mechanisms for an enhanced resistance/tolerance to the upcoming stress, quench reactive oxygen species (ROS), have potent antimicrobial as well as allelopathic effects, and might be important in regulating plant growth, development, and senescence through interactions with plant hormones. Current limits and drawbacks that may hamper the use of VOCs in open field are analyzed, and solutions for a better exploitation of VOCs in future sustainable agriculture are envisioned.
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Affiliation(s)
- Federico Brilli
- Institute for Sustainable Plant Protection, National Research Council of Italy, Florence, Italy
- *Correspondence: Federico Brilli,
| | - Francesco Loreto
- Department of Biology, Agriculture and Food Sciences, National Research Council of Italy, Rome, Italy
| | - Ivan Baccelli
- Institute for Sustainable Plant Protection, National Research Council of Italy, Florence, Italy
- Ivan Baccelli,
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35
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Characterization of Plant Volatiles Reveals Distinct Metabolic Profiles and Pathways among 12 Brassicaceae Vegetables. Metabolites 2018; 8:metabo8040094. [PMID: 30558181 PMCID: PMC6316591 DOI: 10.3390/metabo8040094] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 01/12/2023] Open
Abstract
Plants emit characteristic organic volatile compounds (VOCs) with diverse biological/ecological functions. However, the links between plant species/varieties and their phytochemical emission profiles remain elusive. Here, we developed a direct headspace solid-phase microextraction (HS-SPME) technique and combined with non-targeted gas chromatography‒high-resolution mass spectrometry (GC-HRMS) platform to investigate the VOCs profiles of 12 common Brassicaceae vegetables (watercress, rocket, Brussels sprouts, broccoli, kai lan, choy sum, pak choi, cabbage, Chinese cabbage, cauliflower, radish and cherry radish). The direct HS-SPME sampling approach enabled reproducible capture of the rapid-emitting VOCs upon plant tissue disruption. The results revealed extensive variation in VOCs profiles among the 12 Brassicaceae vegetables. Furthermore, principal component analysis (PCA) showed that the VOC profiles could clearly distinguish the 12 Brassicaceae vegetables, and that these profiles well reflected the classical morphological classification. After multivariate statistical analysis, 44 VOCs with significant differences among the Brassicaceae vegetables were identified. Pathway analysis showed that three secondary metabolism pathways, including the fatty acid pathway, methylerythritol phosphate (MEP) pathway and glucosinolate (GLS) pathway, behave distinctively in these vegetables. These three pathways are responsible for the generation and emission of green leaf volatiles (GLVs), terpenes and isothiocyanates (ITCs), respectively. Correlation analysis further showed that volatile metabolites formed via the common pathway had significantly positive correlations, whereas metabolites from different pathways had either non-significant or significantly negative correlations. Genetic influences on these metabolites across various vegetable types were also evaluated. These findings extend our phytochemical knowledge of the 12 edible Brassicaceae vegetables and provide useful information on their secondary metabolism.
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36
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Escobar Rodríguez C, Mitter B, Antonielli L, Trognitz F, Compant S, Sessitsch A. Roots and Panicles of the C4 Model Grasses Setaria viridis (L). and S. pumila Host Distinct Bacterial Assemblages With Core Taxa Conserved Across Host Genotypes and Sampling Sites. Front Microbiol 2018; 9:2708. [PMID: 30483233 PMCID: PMC6240606 DOI: 10.3389/fmicb.2018.02708] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/23/2018] [Indexed: 01/22/2023] Open
Abstract
Virtually all studied plant tissues are internally inhabited by endophytes. Due to their relevance for plant growth and health, bacterial microbiota of crop plants have been broadly studied. In plant microbiome research the root is the most frequently addressed environment, whereas the ecology of microbiota associated with reproductive organs still demands investigation. In this work, we chose the model grasses Setaria viridis and Setaria pumila to better understand the drivers shaping bacterial communities associated with panicles (representing a reproductive organ) as compared to those associated with roots. We collected wild individuals of both grass species from 20 different locations across Austria and investigated the bacterial assemblages within roots and ripe grain-harboring panicles by 16S rRNA gene-based Illumina sequencing. Furthermore, plant samples were subjected to genotyping by genetic diversity-focused Genotyping by Sequencing. Overall, roots hosted more diverse microbiota than panicles. Both the plant organ and sampling site significantly shaped the root and panicle-associated microbiota, whereas the host genotype only affected root communities. In terms of community structure, root-specific assemblages were highly diverse and consisted of conserved bacterial taxa. In contrast, panicle-specific communities were governed by Gammaproteobacteria, were less diverse and highly origin-dependent. Among OTUs found in both plant tissues, relative abundances of Gammaproteobacteria were higher in panicles, whereas Rhizobiales dominated root communities. We further identified core and non-core taxa within samples of both Setaria species. Non-core taxa included members of the Saccharibacteria and Legionelalles, while core communities encompassed eleven OTUs of seven bacterial orders, together with a set of ten panicle-enriched OTUs. These communities were widespread across root and panicle samples from all locations, hinting toward an evolved form of mutualism through potential vertical transmission of these taxa within Setaria species.
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Affiliation(s)
- Carolina Escobar Rodríguez
- Bioresources Unit, Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Vienna, Austria
| | - Birgit Mitter
- Bioresources Unit, Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Vienna, Austria
| | - Livio Antonielli
- Bioresources Unit, Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Vienna, Austria
| | - Friederike Trognitz
- Bioresources Unit, Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Vienna, Austria
| | - Stéphane Compant
- Bioresources Unit, Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Vienna, Austria
| | - Angela Sessitsch
- Bioresources Unit, Center for Health & Bioresources, AIT Austrian Institute of Technology GmbH, Vienna, Austria
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Volpe V, Chitarra W, Cascone P, Volpe MG, Bartolini P, Moneti G, Pieraccini G, Di Serio C, Maserti B, Guerrieri E, Balestrini R. The Association With Two Different Arbuscular Mycorrhizal Fungi Differently Affects Water Stress Tolerance in Tomato. FRONTIERS IN PLANT SCIENCE 2018; 9:1480. [PMID: 30356724 PMCID: PMC6189365 DOI: 10.3389/fpls.2018.01480] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/21/2018] [Indexed: 05/25/2023]
Abstract
Arbuscular mycorrhizal (AM) fungi are very widespread, forming symbiotic associations with ∼80% of land plant species, including almost all crop plants. These fungi are considered of great interest for their use as biofertilizer in low-input and organic agriculture. In addition to an improvement in plant nutrition, AM fungi have been reported to enhance plant tolerance to important abiotic and biotic environmental conditions, especially to a reduced availability of resources. These features, to be exploited and applied in the field, require a thorough identification of mechanisms involved in nutrient transfer, metabolic pathways induced by single and multiple stresses, physiological and eco-physiological mechanisms resulting in improved tolerance. However, cooperation between host plants and AM fungi is often related to the specificity of symbiotic partners, the environmental conditions and the availability of resources. In this study, the impact of two AM fungal species (Funneliformis mosseae and Rhizophagus intraradices) on the water stress tolerance of a commercial tomato cultivar (San Marzano nano) has been evaluated in pots. Biometric and eco-physiological parameters have been recorded and gene expression analyses in tomato roots have been focused on plant and fungal genes involved in inorganic phosphate (Pi) uptake and transport. R. intraradices, which resulted to be more efficient than F. mosseae to improve physiological performances, was selected to assess the role of AM symbiosis on tomato plants subjected to combined stresses (moderate water stress and aphid infestation) in controlled conditions. A positive effect on the tomato indirect defense toward aphids in terms of enhanced attraction of their natural enemies was observed, in agreement with the characterization of volatile organic compound (VOC) released. In conclusion, our results offer new insights for understanding the molecular and physiological mechanisms involved in the tolerance toward water deficit as mediated by a specific AM fungus. Moreover, they open new perspectives for the exploitation of AM symbiosis to enhance crop tolerance to abiotic and biotic stresses in a scenario of global change.
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Affiliation(s)
- Veronica Volpe
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Walter Chitarra
- Council for Agricultural Research and Economics, Centre of Viticulture and Enology Research, Conegliano, Italy
| | - Pasquale Cascone
- National Research Council, Institute for Sustainable Plant Protection, Turin-Florence-Portici (NA) Units, Portici, Italy
| | | | - Paola Bartolini
- National Research Council, Institute for Sustainable Plant Protection, Turin-Florence-Portici (NA) Units, Portici, Italy
| | - Gloriano Moneti
- Department of Health Sciences, University of Florence, Florence, Italy
| | | | - Claudia Di Serio
- Geriatric Intensive Care Unit, Experimental and Clinical Medicine Department, University of Florence, AOU Careggi, Florence, Italy
| | - Biancaelena Maserti
- National Research Council, Institute for Sustainable Plant Protection, Turin-Florence-Portici (NA) Units, Portici, Italy
| | - Emilio Guerrieri
- National Research Council, Institute for Sustainable Plant Protection, Turin-Florence-Portici (NA) Units, Portici, Italy
| | - Raffaella Balestrini
- National Research Council, Institute for Sustainable Plant Protection, Turin-Florence-Portici (NA) Units, Portici, Italy
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Durenne B, Blondel A, Druart P, Fauconnier M. A laboratory high-throughput glass chamber using dynamic headspace TD-GC/MS method for the analysis of whole Brassica napus L. plantlet volatiles under cadmium-related abiotic stress. PHYTOCHEMICAL ANALYSIS : PCA 2018; 29:463-471. [PMID: 29460984 PMCID: PMC6099401 DOI: 10.1002/pca.2750] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 11/07/2017] [Accepted: 12/31/2017] [Indexed: 05/28/2023]
Abstract
INTRODUCTION The dynamic headspace sampling technique using thermal desorption, gas chromatography-mass spectrometry (TD-GC/MS) is a powerful method for analysing plant emissions of volatile organic compounds (VOCs), and experiments performed in sterile and controlled conditions can be useful for VOC metabolism investigations. OBJECTIVE The main purpose of this study was to set up a laboratory high-throughput glass chamber for whole plant volatiles analysis. Brassica napus L. plantlets were tested with the developed system to better understand the relationship between low emission of induced terpene and cadmium (Cd)-related abiotic stress. METHODOLOGY VOCs emitted by 28-day-old Brassica napus L. plantlets cultivated in vitro were trapped with our device using adsorbent cartridges that were desorbed with a thermal desorption unit before cryofocusing with a cooled injection system and programmable temperature vaporising inlet into an HP-5 ms GC column. Terpene detection and quantitation from chromatogram profiles were acquired using selected ion monitoring (SIM) mode during full scan analysis and mass spectra were obtained with a quadrupole-type mass spectrometer. RESULTS The new trapping method produced reliable qualitative profiles of oilseed rape VOCs. Typical emissions of monoterpenes (myrcene, limonene) and sesquiterpenes (β-elemene, (E,E)-α-farnesene) were found for the different concentrations tested. One-way analysis of variance for quantitative results of (E,E)-α-farnesene emission rates showed a Cd concentration effect. CONCLUSION This inexpensive glass chamber has potential for wide application in laboratory sterile approach and replicated research. Moreover, the non-invasive dynamic sampling technique could also be used to analyse volatiles under both abiotic and biotic stresses.
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Marsol-Vall A, Kortesniemi M, Karhu ST, Kallio H, Yang B. Profiles of Volatile Compounds in Blackcurrant ( Ribes nigrum) Cultivars with a Special Focus on the Influence of Growth Latitude and Weather Conditions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7485-7495. [PMID: 29938497 PMCID: PMC6221373 DOI: 10.1021/acs.jafc.8b02070] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The volatile profiles of three blackcurrant ( Ribes nigrum L.) cultivars grown in Finland and their responses to growth latitude and weather conditions were studied over an 8 year period by headspace solid-phase microextraction (HS-SPME) followed by gas-chromatographic-mass-spectrometric (GC-MS) analysis. Monoterpene hydrocarbons and oxygenated monoterpenes were the major classes of volatiles. The cultivar 'Melalahti' presented lower contents of volatiles compared with 'Ola' and 'Mortti', which showed very similar compositions. Higher contents of volatiles were found in berries cultivated at the higher latitude (66° 34' N) than in those from the southern location (60° 23' N). Among the meteorological variables, radiation and temperature during the last month before harvest were negatively linked with the volatile content. Storage time had a negative impact on the amount of blackcurrant volatiles.
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Affiliation(s)
- Alexis Marsol-Vall
- Food
Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turun yliopisto, Finland
| | - Maaria Kortesniemi
- Food
Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turun yliopisto, Finland
| | - Saila T. Karhu
- Horticulture
Technologies, Production Systems, Natural
Resources Institute Finland (Luke), FI-20520 Turku, Finland
| | - Heikki Kallio
- Food
Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turun yliopisto, Finland
| | - Baoru Yang
- Food
Chemistry and Food Development, Department of Biochemistry, University of Turku, FI-20014 Turun yliopisto, Finland
- Tel.: +35823336844. E-mail:
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Skrzypczak T, Krela R, Kwiatkowski W, Wadurkar S, Smoczyńska A, Wojtaszek P. Plant Science View on Biohybrid Development. Front Bioeng Biotechnol 2017; 5:46. [PMID: 28856135 PMCID: PMC5558049 DOI: 10.3389/fbioe.2017.00046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 07/24/2017] [Indexed: 01/07/2023] Open
Abstract
Biohybrid consists of a living organism or cell and at least one engineered component. Designing robot-plant biohybrids is a great challenge: it requires interdisciplinary reconsideration of capabilities intimate specific to the biology of plants. Envisioned advances should improve agricultural/horticultural/social practice and could open new directions in utilization of plants by humans. Proper biohybrid cooperation depends upon effective communication. During evolution, plants developed many ways to communicate with each other, with animals, and with microorganisms. The most notable examples are: the use of phytohormones, rapid long-distance signaling, gravity, and light perception. These processes can now be intentionally re-shaped to establish plant-robot communication. In this article, we focus on plants physiological and molecular processes that could be used in bio-hybrids. We show phototropism and biomechanics as promising ways of effective communication, resulting in an alteration in plant architecture, and discuss the specifics of plants anatomy, physiology and development with regards to the bio-hybrids. Moreover, we discuss ways how robots could influence plants growth and development and present aims, ideas, and realized projects of plant-robot biohybrids.
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Affiliation(s)
- Tomasz Skrzypczak
- Faculty of Biology, Department of Molecular and Cellular Biology, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Rafał Krela
- Faculty of Biology, Department of Molecular and Cellular Biology, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Wojciech Kwiatkowski
- Faculty of Biology, Department of Molecular and Cellular Biology, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Shraddha Wadurkar
- Faculty of Biology, Department of Molecular and Cellular Biology, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Aleksandra Smoczyńska
- Faculty of Biology, Department of Gene Expression, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Przemysław Wojtaszek
- Faculty of Biology, Department of Molecular and Cellular Biology, Adam Mickiewicz University in Poznań, Poznań, Poland
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Achyuthan KE, Harper JC, Manginell RP, Moorman MW. Volatile Metabolites Emission by In Vivo Microalgae-An Overlooked Opportunity? Metabolites 2017; 7:E39. [PMID: 28788107 PMCID: PMC5618324 DOI: 10.3390/metabo7030039] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/19/2017] [Accepted: 07/25/2017] [Indexed: 01/04/2023] Open
Abstract
Fragrances and malodors are ubiquitous in the environment, arising from natural and artificial processes, by the generation of volatile organic compounds (VOCs). Although VOCs constitute only a fraction of the metabolites produced by an organism, the detection of VOCs has a broad range of civilian, industrial, military, medical, and national security applications. The VOC metabolic profile of an organism has been referred to as its 'volatilome' (or 'volatome') and the study of volatilome/volatome is characterized as 'volatilomics', a relatively new category in the 'omics' arena. There is considerable literature on VOCs extracted destructively from microalgae for applications such as food, natural products chemistry, and biofuels. VOC emissions from living (in vivo) microalgae too are being increasingly appreciated as potential real-time indicators of the organism's state of health (SoH) along with their contributions to the environment and ecology. This review summarizes VOC emissions from in vivo microalgae; tools and techniques for the collection, storage, transport, detection, and pattern analysis of VOC emissions; linking certain VOCs to biosynthetic/metabolic pathways; and the role of VOCs in microalgae growth, infochemical activities, predator-prey interactions, and general SoH.
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Affiliation(s)
- Komandoor E Achyuthan
- Nano and Microsensors Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Jason C Harper
- Bioenergy and Defense Technology Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Ronald P Manginell
- Nano and Microsensors Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Matthew W Moorman
- Nano and Microsensors Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
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Mitra S, Karmakar A, Mukherjee A, Barik A. The Role of Leaf Volatiles of Ludwigia octovalvis (Jacq.) Raven in the Attraction of Altica cyanea (Weber) (Coleoptera: Chrysomelidae). J Chem Ecol 2017; 43:679-692. [PMID: 28695387 DOI: 10.1007/s10886-017-0866-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 06/23/2017] [Accepted: 06/30/2017] [Indexed: 12/15/2022]
Abstract
Larvae and adults of Altica cyanea (Weber) (Coleoptera: Chrysomelidae) feed on the rice-field weed Ludwigia octovalvis (Jacq.) Raven (Onagraceae), commonly known as willow primrose, which is considered a biocontrol agent of the weed. Volatile organic compounds from undamaged plants, plants after 4, 12, and 36 h of continuous feeding by A. cyanea larvae or adult females and after mechanical damaging were identified by GC-MS and GC-FID analyses. Twenty nine compounds were identified from undamaged plants. 2Z-Penten-1-ol, geraniol, and 1-tridecanol were present in all plants damaged by larvae. In contrast, feeding by adults caused the release of 2Z-penten-1-ol only after 12 and 36 h; whereas geraniol and 1-tridecanol appeared only after 36 h. Farnesyl acetone was detected after 12 and 36 h of feeding by larvae and after 36 h of feeding by adults. Farnesene was detected after 36 h of feeding by larvae and adults. Linalool was unique after 36 h of feeding by larvae. In Y-shaped glass tube olfactometer bioassays, A. cyanea females were attracted to volatiles after 36 h of feeding by larvae or adults compared to volatiles released by undamaged plants. The insects were attracted to five synthetic compounds: 3-hexanol, α-pinene, linalool oxide, geraniol, and phytol. Synthetic blends were more attractive than individual compounds. Compared to undamaged plants, volatiles released by plants, damaged by conspecific individuals, were more attractive to A. cyanea females, due to elevated emissions of 3-hexanol, α-pinene, linalool oxide, geraniol, and phytol.
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Affiliation(s)
- Saubhik Mitra
- Ecology Research Laboratory, Department of Zoology, The University of Burdwan, Burdwan, West Bengal, 713 104, India
| | - Amarnath Karmakar
- Ecology Research Laboratory, Department of Zoology, The University of Burdwan, Burdwan, West Bengal, 713 104, India
| | - Abhishek Mukherjee
- Ecology Research Laboratory, Department of Zoology, The University of Burdwan, Burdwan, West Bengal, 713 104, India
| | - Anandamay Barik
- Ecology Research Laboratory, Department of Zoology, The University of Burdwan, Burdwan, West Bengal, 713 104, India.
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Lubes G, Goodarzi M. Analysis of Volatile Compounds by Advanced Analytical Techniques and Multivariate Chemometrics. Chem Rev 2017; 117:6399-6422. [PMID: 28306239 DOI: 10.1021/acs.chemrev.6b00698] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Smelling is one of the five senses, which plays an important role in our everyday lives. Volatile compounds are, for example, characteristics of food where some of them can be perceivable by humans because of their aroma. They have a great influence on the decision making of consumers when they choose to use a product or not. In the case where a product has an offensive and strong aroma, many consumers might not appreciate it. On the contrary, soft and fresh natural aromas definitely increase the acceptance of a given product. These properties can drastically influence the economy; thus, it has been of great importance to manufacturers that the aroma of their food product is characterized by analytical means to provide a basis for further optimization processes. A lot of research has been devoted to this domain in order to link the quality of, e.g., a food to its aroma. By knowing the aromatic profile of a food, one can understand the nature of a given product leading to developing new products, which are more acceptable by consumers. There are two ways to analyze volatiles: one is to use human senses and/or sensory instruments, and the other is based on advanced analytical techniques. This work focuses on the latter. Although requirements are simple, low-cost technology is an attractive research target in this domain; most of the data are generated with very high-resolution analytical instruments. Such data gathered based on different analytical instruments normally have broad, overlapping sensitivity profiles and require substantial data analysis. In this review, we have addressed not only the question of the application of chemometrics for aroma analysis but also of the use of different analytical instruments in this field, highlighting the research needed for future focus.
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Affiliation(s)
- Giuseppe Lubes
- Laboratorio de Química en Solución. Universidad Simón Bolívar (USB) , Apartado 89000, Caracas 1080 A, Venezuela
| | - Mohammad Goodarzi
- Department of Biochemistry, University of Texas Southwestern Medical Center , Dallas, Texas 75390, United States
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Bera P, Mukherjee C, Mitra A. Enzymatic production and emission of floral scent volatiles in Jasminum sambac. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 256:25-38. [PMID: 28167035 DOI: 10.1016/j.plantsci.2016.11.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 11/21/2016] [Accepted: 11/22/2016] [Indexed: 05/24/2023]
Abstract
Floral scent composed of low molecular weight volatile organic compounds. The sweet fragrance of any evening blooming flower is dominated by benzenoid and terpenoid volatile compounds. Floral scent of Jasminum sambac (Oleaceae) includes three major benzenoid esters - benzylacetate, methylbenzoate, and methylsalicylate and three major terpene compounds viz. (E)-β-ocimene, linalool and α-farnesene. We analyzed concentrations and emission rates of benzenoids and terpenoids during the developmental stages of J. sambac flower. In addition to spatial emission from different floral parts, we studied the time-course mRNA accumulations of phenylalanine ammonia-lyase (PAL) and the two representative genes of terpenoid pathway, namely 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR) and terpene synthase (TPS). Further, in vitro activities of several enzymes of phenylpropanoid/benzenoid pathway viz., PAL and acetyl-coenzyme A: benzylalcohol acetyltransferase (BEAT), S-adenosyl-l-methionine: benzoic acid carboxyl methyl transferase (BAMT) and S-adenosyl-l-methionine: salicylic acid carboxyl methyltransferase (SAMT) were studied. All the above enzyme activities along with the in vitro activities of DXR and TPS were found to follow a certain rhythm as observed in the emission of different benzenoid and terpenoid compounds. Linalool emission peaked after petal opening and coincided with maximal expression of JsTPS gene as evidenced from RT-PCR analyses (semi-quantitative). The maximum transcript accumulation of this gene was observed in flower petals, indicating that the petals of J. sambac flower play an important role as a major contributor of volatile precursors. The transcripts accumulation of JsDXR and JsTPS in different developmental stages and in different floral part showed that emissions of terpenoid volatiles in J. sambac flower are partially regulated at transcription levels.
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Affiliation(s)
- Paramita Bera
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
| | - Chiranjit Mukherjee
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
| | - Adinpunya Mitra
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India.
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Beck JJ, Vannette RL. Harnessing Insect-Microbe Chemical Communications To Control Insect Pests of Agricultural Systems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:23-28. [PMID: 28073253 DOI: 10.1021/acs.jafc.6b04298] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Insect pests cause serious economic, yield, and food safety problems to managed crops worldwide. Compounding these problems, insect pests often vector pathogenic or toxigenic microbes to plants. Previous work has considered plant-insect and plant-microbe interactions separately. Although insects are well-understood to use plant volatiles to locate hosts, microorganisms can produce distinct and abundant volatile compounds that in some cases strongly attract insects. In this paper, we focus on the microbial contribution to plant volatile blends, highlighting the compounds emitted and the potential for variation in microbial emission. We suggest that these aspects of microbial volatile emission may make these compounds ideal for use in agricultural applications, as they may be more specific or enhance methods currently used in insect control or monitoring. Our survey of microbial volatiles in insect-plant interactions suggests that these emissions not only signal host suitability but may indicate a distinctive time frame for optimal conditions for both insect and microbe. Exploitation of these host-specific microbe semiochemicals may provide important microbe- and host-based attractants and a basis for future plant-insect-microbe chemical ecology investigations.
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Affiliation(s)
- John J Beck
- Chemistry Research Unit, Center for Medical, Agricultural and Veterinary Entomology, Agricultural Research Service, U.S. Department of Agriculture , 1700 S.W. 23rd Drive, Gainesville, Florida 32608, United States
| | - Rachel L Vannette
- Department of Entomology and Nematology, University of California, Davis , One Shields Avenue, Davis, California 95616, United States
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Lüpke M, Steinbrecher R, Leuchner M, Menzel A. The Tree Drought Emission MONitor (Tree DEMON), an innovative system for assessing biogenic volatile organic compounds emission from plants. PLANT METHODS 2017; 13:14. [PMID: 28321263 PMCID: PMC5358044 DOI: 10.1186/s13007-017-0166-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 03/15/2017] [Indexed: 05/13/2023]
Abstract
BACKGROUND Biogenic volatile organic compounds (BVOC) emitted by plants play an important role for ecological and physiological processes, for example as response to stressors. These emitted compounds are involved in chemical processes within the atmosphere and contribute to the formation of aerosols and ozone. Direct measurement of BVOC emissions requires a specialized sample system in order to obtain repeatable and comparable results. These systems need to be constructed carefully since BVOC measurements may be disturbed by several side effects, e.g., due to wrong material selection and lacking system stability. RESULTS In order to assess BVOC emission rates, a four plant chamber system was constructed, implemented and throughout evaluated by synthetic tests and in two case studies on 3-year-old sweet chestnut seedlings. Synthetic system test showed a stable sampling with good repeatability and low memory effects. The first case study demonstrated the capability of the system to screen multiple trees within a few days and revealed three different emission patterns of sweet chestnut trees. The second case study comprised an application of drought stress on two seedlings compared to two in parallel assessed seedlings of a control. Here, a clear reduction of BVOC emissions during drought stress was observed. CONCLUSION The developed system allows assessing BVOC as well as CO2 and water vapor gas exchange of four tree specimens automatically and in parallel with repeatable results. A canopy volume of 30 l can be investigated, which constitutes in case of tree seedlings the whole canopy. Longer lasting experiments of e.g., 1-3 weeks can be performed easily without any significant plant interference.
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Affiliation(s)
- Marvin Lüpke
- Ecoclimatology, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
| | - Rainer Steinbrecher
- Department of Atmospheric Environmental Research (IMK-IFU), Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology (KIT), Kreuzeckbahnstraße 19, 82467 Garmisch-Partenkirchen, Germany
| | - Michael Leuchner
- Ecoclimatology, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
- Springer Science+Business Media B.V., Van Godewijckstraat 30, 3311 GX Dordrecht, The Netherlands
| | - Annette Menzel
- Ecoclimatology, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
- TUM Institute for Advanced Study, Lichtenbergstraße 2 a, 85748 Garching, Germany
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Simko I, Jimenez-Berni JA, Sirault XRR. Phenomic Approaches and Tools for Phytopathologists. PHYTOPATHOLOGY 2017; 107:6-17. [PMID: 27618193 DOI: 10.1094/phyto-02-16-0082-rvw] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Plant phenomics approaches aim to measure traits such as growth, performance, and composition of plants using a suite of noninvasive technologies. The goal is to link phenotypic traits to the genetic information for particular genotypes, thus creating the bridge between the phenome and genome. Application of sensing technologies for detecting specific phenotypic reactions occurring during plant-pathogen interaction offers new opportunities for elucidating the physiological mechanisms that link pathogen infection and disease symptoms in the host, and also provides a faster approach in the selection of genetic material that is resistant to specific pathogens or strains. Appropriate phenomics methods and tools may also allow presymptomatic detection of disease-related changes in plants or to identify changes that are not visually apparent. This review focuses on the use of sensor-based phenomics tools in plant pathology such as those related to digital imaging, chlorophyll fluorescence imaging, spectral imaging, and thermal imaging. A brief introduction is provided for less used approaches like magnetic resonance, soft x-ray imaging, ultrasound, and detection of volatile compounds. We hope that this concise review will stimulate further development and use of tools for automatic, nondestructive, and high-throughput phenotyping of plant-pathogen interaction.
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Affiliation(s)
- Ivan Simko
- First author: U.S. Department of Agriculture, Agricultural Research Service, U.S. Agricultural Research Station, 1636 E. Alisal St., Salinas, CA 93905; and second and third authors: CSIRO Agriculture and Food, High Resolution Plant Phenomics Centre, Australian Plant Phenomics Facility, GPO Box 1600, Canberra, ACT 2601, Australia
| | - Jose A Jimenez-Berni
- First author: U.S. Department of Agriculture, Agricultural Research Service, U.S. Agricultural Research Station, 1636 E. Alisal St., Salinas, CA 93905; and second and third authors: CSIRO Agriculture and Food, High Resolution Plant Phenomics Centre, Australian Plant Phenomics Facility, GPO Box 1600, Canberra, ACT 2601, Australia
| | - Xavier R R Sirault
- First author: U.S. Department of Agriculture, Agricultural Research Service, U.S. Agricultural Research Station, 1636 E. Alisal St., Salinas, CA 93905; and second and third authors: CSIRO Agriculture and Food, High Resolution Plant Phenomics Centre, Australian Plant Phenomics Facility, GPO Box 1600, Canberra, ACT 2601, Australia
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Giuliani C, Lazzaro L, Calamassi R, Calamai L, Romoli R, Fico G, Foggi B, Mariotti Lippi M. A volatolomic approach for studying plant variability: the case of selected Helichrysum species (Asteraceae). PHYTOCHEMISTRY 2016; 130:128-143. [PMID: 27502926 DOI: 10.1016/j.phytochem.2016.07.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 07/20/2016] [Accepted: 07/27/2016] [Indexed: 06/06/2023]
Abstract
The species of Helichrysum sect. Stoechadina (Asteraceae) are well-known for their secondary metabolite content and the characteristic aromatic bouquets. In the wild, populations exhibit a wide phenotypic plasticity which makes critical the circumscription of species and infraspecific ranks. Previous investigations on Helichrysum italicum complex focused on a possible phytochemical typification based on hydrodistilled essential oils. Aims of this paper are three-fold: (i) characterizing the volatile profiles of different populations, testing (ii) how these profiles vary across populations and (iii) how the phytochemical diversity may contribute in solving taxonomic problems. Nine selected Helichrysum populations, included within the H. italicum complex, Helichrysum litoreum and Helichrysum stoechas, were investigated. H. stoechas was chosen as outgroup for validating the method. After collection in the wild, plants were cultivated in standard growing conditions for over one year. Annual leafy shoots were screened in the post-blooming period for the emissions of volatile organic compounds (VOCs) by means of headspace solid phase microextraction coupled with gas-chromatography and mass spectrometry (HS-SPME-GC/MS). The VOC composition analysis revealed the production of overall 386 different compounds, with terpenes being the most represented compound class. Statistical data processing allowed the identification of the indicator compounds that differentiate the single populations, revealing the influence of the geographical provenance area in determining the volatile profiles. These results suggested the potential use of VOCs as valuable diacritical characters in discriminating the Helichrysum populations. In addition, the cross-validation analysis hinted the potentiality of this volatolomic study in the discrimination of the Helichrysum species and subspecies, highlighting a general congruence with the current taxonomic treatment of the genus. The consistency between this phytochemical approach and the traditional morphometrical analysis in studying the Helichrysum populations supports the validity of the VOC profile in solving taxonomic problems.
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Affiliation(s)
- Claudia Giuliani
- Department of Pharmaceutical Sciences (DISFARM), University of Milan, Via Mangiagalli 25, I-20133 Milan, Italy
| | - Lorenzo Lazzaro
- Department of Biology (BIO), University of Florence, Via G. La Pira 4, I-50121 Florence, Italy
| | - Roberto Calamassi
- Department of Biology (BIO), University of Florence, Via G. La Pira 4, I-50121 Florence, Italy
| | - Luca Calamai
- Department of Plant, Soil and Environmental Sciences (DISPAA), University of Florence, Piazzale delle Cascine 28, I-50144 Florence, Italy
| | - Riccardo Romoli
- Mass Spectrometry Center (CISM), University of Florence, Via U. Schiff 6, I-50019 Sesto F.no, Florence, Italy
| | - Gelsomina Fico
- Department of Pharmaceutical Sciences (DISFARM), University of Milan, Via Mangiagalli 25, I-20133 Milan, Italy.
| | - Bruno Foggi
- Department of Biology (BIO), University of Florence, Via G. La Pira 4, I-50121 Florence, Italy
| | - Marta Mariotti Lippi
- Department of Biology (BIO), University of Florence, Via G. La Pira 4, I-50121 Florence, Italy
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Werner S, Polle A, Brinkmann N. Belowground communication: impacts of volatile organic compounds (VOCs) from soil fungi on other soil-inhabiting organisms. Appl Microbiol Biotechnol 2016; 100:8651-65. [DOI: 10.1007/s00253-016-7792-1] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/21/2016] [Accepted: 08/03/2016] [Indexed: 11/25/2022]
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50
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Jud W, Vanzo E, Li Z, Ghirardo A, Zimmer I, Sharkey TD, Hansel A, Schnitzler JP. Effects of heat and drought stress on post-illumination bursts of volatile organic compounds in isoprene-emitting and non-emitting poplar. PLANT, CELL & ENVIRONMENT 2016; 39:1204-15. [PMID: 26390316 PMCID: PMC4982041 DOI: 10.1111/pce.12643] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 09/13/2015] [Indexed: 05/22/2023]
Abstract
Over the last decades, post-illumination bursts (PIBs) of isoprene, acetaldehyde and green leaf volatiles (GLVs) following rapid light-to-dark transitions have been reported for a variety of different plant species. However, the mechanisms triggering their release still remain unclear. Here we measured PIBs of isoprene-emitting (IE) and isoprene non-emitting (NE) grey poplar plants grown under different climate scenarios (ambient control and three scenarios with elevated CO2 concentrations: elevated control, periodic heat and temperature stress, chronic heat and temperature stress, followed by recovery periods). PIBs of isoprene were unaffected by elevated CO2 and heat and drought stress in IE, while they were absent in NE plants. On the other hand, PIBs of acetaldehyde and also GLVs were strongly reduced in stress-affected plants of all genotypes. After recovery from stress, distinct differences in PIB emissions in both genotypes confirmed different precursor pools for acetaldehyde and GLV emissions. Changes in PIBs of GLVs, almost absent in stressed plants and enhanced after recovery, could be mainly attributed to changes in lipoxygenase activity. Our results indicate that acetaldehyde PIBs, which recovered only partly, derive from a new mechanism in which acetaldehyde is produced from methylerythritol phosphate pathway intermediates, driven by deoxyxylulose phosphate synthase activity.
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Affiliation(s)
- Werner Jud
- Institute of Ion and Applied Physics, University of Innsbruck, 6020, Innsbruck, Austria
| | - Elisa Vanzo
- Research Unit Environmental Simulation (EUS), Institute of Biochemical Plant Pathology (BIOP), Helmholtz Zentrum München GmbH, 85764, Neuherberg, Germany
| | - Ziru Li
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing Michigan, 48823, USA
| | - Andrea Ghirardo
- Research Unit Environmental Simulation (EUS), Institute of Biochemical Plant Pathology (BIOP), Helmholtz Zentrum München GmbH, 85764, Neuherberg, Germany
| | - Ina Zimmer
- Research Unit Environmental Simulation (EUS), Institute of Biochemical Plant Pathology (BIOP), Helmholtz Zentrum München GmbH, 85764, Neuherberg, Germany
| | - Thomas D Sharkey
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing Michigan, 48823, USA
| | - Armin Hansel
- Institute of Ion and Applied Physics, University of Innsbruck, 6020, Innsbruck, Austria
| | - Jörg-Peter Schnitzler
- Research Unit Environmental Simulation (EUS), Institute of Biochemical Plant Pathology (BIOP), Helmholtz Zentrum München GmbH, 85764, Neuherberg, Germany
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