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A Kurir - One of the best experts on this subject based on the ideXlab platform.
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auftreten der weidenholz gallmucke helicomyia saliciperda dufour cecidomyidae auf silberweide Salix Alba linnaeus und trauerweide Salix Alba var vitellina pendula rehder
Journal of Applied Entomology, 2009Co-Authors: A KurirAbstract:Occurrence of shot-hole-gallmidge (Helicomya saliciperda Dufour [Cecidomyidae]) on white-willow (Salix Alba Linnaeus) and funeral-willow (Salix Alba var. vitellina-pendula Rehder) The systematic position of Helicomyia saliciperda and over that with review-underspinning, are given. Economy is significant (from literature-sources within 137 years) on: Salix Alba, aurita, caprea, cinerea, fragilis, helix, nigra, purpurea, repens, triandra, viminalis and viridis, likewise on Populus Alba and P. tremula. - Distribution in Austria from lowland up to 2000 m in the alps. - Areal-distribution: Central and Western Europe, Southern as well as Eastern Europe. - Description of biotop-attacks, identification of attacks, the concentration of attacks on the 3–8 years old stems and 2–4 years old branches older trees. - Length of attacks: 2,2 till 52,0 cm, in the cut 24,41 cm. The cross-section of attack-places; in the lower places: 1,1–5,38 cm, in the cut 2,68 cm; in the superior places: 0,82–5,38 cm, in the cut 2,4 cm; in the broadest places (through exuberance of plant = Hypertrophy produced): 1,46–7,50 cm, in the cut 3,56 cm. - The surface of attacks: total 30,6 cm2 (= 63,51%) till 559,9 cm2 (= 96,39%), of that the kill-tissue 35,53 cm2 (= 12,22%) till 102,5 cm2 (= 92,84%), in the cut 78,66 cm2 (= 41,02%). - The breadth of larvae-rooms: 3,32–9,08 mm, in the cut 4,69 mm. The number of larvae-rooms in the year-ring: 5–17, in the cut 10. - Succession of attacks: the kill on the stems going slow (many years), on the branches rapid (within 2–3 years). - Mechanical control only in the afforestations with willow-poles for select-trees (future-individuals) by means of manipulation with larvae-limes in March, 100% result and economic portable. The control of branches of older trees is not amortized and economic not portable. - Associate occurrence from Rhabdophaga rosaria Low. Zusammenfassung Die Stellung von Helicomyia saliciperda im System wird angefuhrt und mit einer Literaturubersicht untermauert. Die wirtschaftliche Bedeutung des Befalles manifestiert sich auf 15 Pflanzenarten der Fam. Salicaceae (nach Literaturquellen der letzten 137 Jahre): Salix Alba, acutifolia, aurita, caprea, cinerea, fragilis, helix, nigra, purpurea, repens, triandra, viminalis, und viridis und sogar angeblich auf Populus Alba und tremula. Vorkommen in Osterreich: von Niederungen bis 2000 m in den Alpen. Verbreitungsareal: Zentral-, West-, Sud- und Osteuropa. Beschreibung der Befallsbiotope, Befallserkennung, Konzentration des Befalles auf 3- bis 8jahrigen Stammchen und 2–4 Jahre alten Asten alterer Baume. Befallslange zwischen 2,2 und 52,0 cm, im Durchschnitt 24,41 cm. Durchmesser der Befallsstellen: an der untersten Stelle zwischen 1,1 und 5,38 cm im Durchschnitt 2,68 cm; an der obersten Stelle zwischen 0,82 und 5,38 cm, im Durchschnitt 2,4 cm; an den breitesten Stellen (durch Wucherungen = Hypertrophie hervorgerufen) zwischen 1,46 und 7,50 cm, im Durchschnitt 3,56 cm. Befallsflache: total zwischen 30,6 (= 63,51%) und 559,9 cm2 (= 96,39%), im Durchschnitt 250,51 cm2 (= 81,37%); davon abgestorbenes Pflanzengewebe zwischen 35,53 (= 12,22%) und 102,5 cm2 (= 92,84%), im Durchschnitt 78,66 cm2 (= 41,02%). Breite der Larvenkammern: zwischen 3,32 und 9,08 mm, im Durchschnitt 4,69 mm. - Anzahl der Larvenkammern pro Jahrring 5–17, im Durchschnitt 10. Befallsfolgen: Das Absterben der Stammchen vollzieht sich langsam (jahrelang), das der Aste alterer Baume rapid (binnen 2–3 Jahren). Bekampfung: mechanisch, nur in den Aufforstungen mit Weidensetzstangen auf Auslesestammchen (= Zukunftsbaumchen) durch Bestreichen mit Raupenleim im Marz 100% erfolgreich und wirtschaftlich tragbar. Die Behandlung befallener Aste an alteren Weiden ist nicht amortisierbar und daher wirtschaftlich untragbar. Geselliges Auftreten mit Rhabdophaga rosaria Low.
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Auftreten der Weidenholz‐Gallmücke (Helicomyia saliciperda Dufour [Cecidomyidae]) auf Silberweide (Salix Alba Linnaeus) und Trauerweide (Salix Alba var. vitellina‐pendula Rehder)
Journal of Applied Entomology, 2009Co-Authors: A KurirAbstract:Occurrence of shot-hole-gallmidge (Helicomya saliciperda Dufour [Cecidomyidae]) on white-willow (Salix Alba Linnaeus) and funeral-willow (Salix Alba var. vitellina-pendula Rehder) The systematic position of Helicomyia saliciperda and over that with review-underspinning, are given. Economy is significant (from literature-sources within 137 years) on: Salix Alba, aurita, caprea, cinerea, fragilis, helix, nigra, purpurea, repens, triandra, viminalis and viridis, likewise on Populus Alba and P. tremula. - Distribution in Austria from lowland up to 2000 m in the alps. - Areal-distribution: Central and Western Europe, Southern as well as Eastern Europe. - Description of biotop-attacks, identification of attacks, the concentration of attacks on the 3–8 years old stems and 2–4 years old branches older trees. - Length of attacks: 2,2 till 52,0 cm, in the cut 24,41 cm. The cross-section of attack-places; in the lower places: 1,1–5,38 cm, in the cut 2,68 cm; in the superior places: 0,82–5,38 cm, in the cut 2,4 cm; in the broadest places (through exuberance of plant = Hypertrophy produced): 1,46–7,50 cm, in the cut 3,56 cm. - The surface of attacks: total 30,6 cm2 (= 63,51%) till 559,9 cm2 (= 96,39%), of that the kill-tissue 35,53 cm2 (= 12,22%) till 102,5 cm2 (= 92,84%), in the cut 78,66 cm2 (= 41,02%). - The breadth of larvae-rooms: 3,32–9,08 mm, in the cut 4,69 mm. The number of larvae-rooms in the year-ring: 5–17, in the cut 10. - Succession of attacks: the kill on the stems going slow (many years), on the branches rapid (within 2–3 years). - Mechanical control only in the afforestations with willow-poles for select-trees (future-individuals) by means of manipulation with larvae-limes in March, 100% result and economic portable. The control of branches of older trees is not amortized and economic not portable. - Associate occurrence from Rhabdophaga rosaria Low. Zusammenfassung Die Stellung von Helicomyia saliciperda im System wird angefuhrt und mit einer Literaturubersicht untermauert. Die wirtschaftliche Bedeutung des Befalles manifestiert sich auf 15 Pflanzenarten der Fam. Salicaceae (nach Literaturquellen der letzten 137 Jahre): Salix Alba, acutifolia, aurita, caprea, cinerea, fragilis, helix, nigra, purpurea, repens, triandra, viminalis, und viridis und sogar angeblich auf Populus Alba und tremula. Vorkommen in Osterreich: von Niederungen bis 2000 m in den Alpen. Verbreitungsareal: Zentral-, West-, Sud- und Osteuropa. Beschreibung der Befallsbiotope, Befallserkennung, Konzentration des Befalles auf 3- bis 8jahrigen Stammchen und 2–4 Jahre alten Asten alterer Baume. Befallslange zwischen 2,2 und 52,0 cm, im Durchschnitt 24,41 cm. Durchmesser der Befallsstellen: an der untersten Stelle zwischen 1,1 und 5,38 cm im Durchschnitt 2,68 cm; an der obersten Stelle zwischen 0,82 und 5,38 cm, im Durchschnitt 2,4 cm; an den breitesten Stellen (durch Wucherungen = Hypertrophie hervorgerufen) zwischen 1,46 und 7,50 cm, im Durchschnitt 3,56 cm. Befallsflache: total zwischen 30,6 (= 63,51%) und 559,9 cm2 (= 96,39%), im Durchschnitt 250,51 cm2 (= 81,37%); davon abgestorbenes Pflanzengewebe zwischen 35,53 (= 12,22%) und 102,5 cm2 (= 92,84%), im Durchschnitt 78,66 cm2 (= 41,02%). Breite der Larvenkammern: zwischen 3,32 und 9,08 mm, im Durchschnitt 4,69 mm. - Anzahl der Larvenkammern pro Jahrring 5–17, im Durchschnitt 10. Befallsfolgen: Das Absterben der Stammchen vollzieht sich langsam (jahrelang), das der Aste alterer Baume rapid (binnen 2–3 Jahren). Bekampfung: mechanisch, nur in den Aufforstungen mit Weidensetzstangen auf Auslesestammchen (= Zukunftsbaumchen) durch Bestreichen mit Raupenleim im Marz 100% erfolgreich und wirtschaftlich tragbar. Die Behandlung befallener Aste an alteren Weiden ist nicht amortisierbar und daher wirtschaftlich untragbar. Geselliges Auftreten mit Rhabdophaga rosaria Low.
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neue erkenntnisse in der bionomie von helicomyia saliciperda dufour dipt cecidomyiidae auf Salix Alba l und s purpurea l
Journal of Applied Entomology, 2009Co-Authors: A KurirAbstract:New knowledges in the bionomy of Helicomyia saliciperda Dufour (Dipt., Cecidomyiidae) on Salix Alba L. and S. purpurea L. The eating out of larvae of Helicomyia saliciperda in the fourth stage of the infected material of the Salix Alba and S. purpurea in order to change into a chrysalis on a third locality began sporadically already on January 21st, continuous from March 25th until April 14th and after that period until May 4th. The spatulae of larvae are characterized by a great variation of shape. The author does not classify them in the genus of Helicomyia. The total eating out of pupae from the larvae-rooms to make swarming out possible for the imagines out of the infected plant began sporadically on March 12th, continuous from March 23rd until May 21st and after that period sporadically until May 27th. Time of flying of the female imagines lasted from March 23rd until June 3rd, the culmination point was on April 20th. Time of swarming of the male imagines lasted from March 23rd until June 1st, the culmination point was on April 20th. The total time of flying began on March 13th and ended on June 10th. The culmination point was on April 20th. The quantity of imagines in relative values distribute: in March 18,7 %, in April 58,8 %, in May 22,3 %, and in June 0,2 %. The sex index was displaced in favour of the females with 65,7 %, that of the males with 34,3 %. Zusammenfassung Das Herausarbeiten der Larven von Helicomyia saliciperda im 4. Stadium aus dem Befallsmaterial (Salix Alba und S. purpurea), um sich an anderer Stelle zu verpuppen, begann sporadisch bereits am 21. Janner, kontinuierlich ab 25. Marz bis 14. April und erstreckte sich sporadisch bis 4. Mai. Die Spatulae der Larven unterliegen einer starken Formvariabilitat und sind daher als Diagno-stikum innerhalb der Gattung Helicomyia abzulehnen. Das vollstandige, nicht partielle Herausarbeiten der Puppen aus den Larvenkammern — um den Imagines das Ausschwarmen auserhalb der Befallspflanze zu ermoglichen — begann sporadisch am 12. Marz, wurde kontinuierlich vom 23. Marz bis 21. Mai und dauerte sporadisch noch bis zum 27. Mai. Die Flugzeit der Weibchen dauerte vom 23. Marz bis 3. Juni mit dem Kulminationspunkt am 20. April, die der Mannchen vom 23. Marz bis 1. Juni mit der Kulmination ebenfalls am 20. April. Totale Flugzeit: Beginn 13. Marz, Kulmination 20. April, Ende 10. Juni. Mengenmasig verteilen sich die Imagines in relativen Werten wie folgt: im Marz 18,69 %, April 58,82 %, Mai 22,31 % und Juni 0,18 %.
Dimitri Heintz - One of the best experts on this subject based on the ideXlab platform.
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Xenobiotics metabolization in Salix Alba leaves uncovered by mass spectrometry imaging
Metabolomics, 2019Co-Authors: Claire Villette, Loïc Maurer, Adrien Wanko, Dimitri HeintzAbstract:Introduction Micropollutants are increasingly monitored as their presence in the environment is rising due to human activities, and they are potential threats to living organisms. Objectives This study aimed at understanding the role of plants in xenobiotics removal from polluted environments by following xenobiotics metabolism in leaf tissues. Methods Different classes of micropollutants were investigated using liquid chromatography (LC) coupled to quadrupole-time of flight (Q-TOF) high resolution mass spectrometry (HRMS). The tissue localization of xenobiotics in the leaves of a spontaneous (not planted by humans) Salix Alba growing near the water flux was further investigated using matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI). Results The LC-Q-TOF analysis revealed the distribution of micropollutants in three different compartments of a tertiary treatment wetland. When further investing the metabolic profile of S. Alba leaves using MSI, different distribution patterns were observed in specific leaf tissues. Xenobiotic metabolites were predicted and could also be tentatively identified in S. Alba leaves, shedding new light on the metabolic processes at play in leaves to manage xenobiotics uptake from a polluted environment. Conclusion Using complementary metabolomics approaches, this study performed a large-scale exploration of micropollutants spreading in the environment at the exit of a tertiary treatment wetland. The use of MSI coupled with the prediction of xenobiotic metabolites yielded novel insights into plant metabolism during chronical exposure to low doses of a mixture of micropollutants.
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xenobiotics metabolization in Salix Alba leaves uncovered by mass spectrometry imaging
Metabolomics, 2019Co-Authors: Claire Villette, Loïc Maurer, Adrien Wanko, Dimitri HeintzAbstract:INTRODUCTION: Micropollutants are increasingly monitored as their presence in the environment is rising due to human activities, and they are potential threats to living organisms. OBJECTIVES: This study aimed at understanding the role of plants in xenobiotics removal from polluted environments by following xenobiotics metabolism in leaf tissues. METHODS: Different classes of micropollutants were investigated using liquid chromatography (LC) coupled to quadrupole-time of flight (Q-TOF) high resolution mass spectrometry (HRMS). The tissue localization of xenobiotics in the leaves of a spontaneous (not planted by humans) Salix Alba growing near the water flux was further investigated using matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI). RESULTS: The LC-Q-TOF analysis revealed the distribution of micropollutants in three different compartments of a tertiary treatment wetland. When further investing the metabolic profile of S. Alba leaves using MSI, different distribution patterns were observed in specific leaf tissues. Xenobiotic metabolites were predicted and could also be tentatively identified in S. Alba leaves, shedding new light on the metabolic processes at play in leaves to manage xenobiotics uptake from a polluted environment. CONCLUSION: Using complementary metabolomics approaches, this study performed a large-scale exploration of micropollutants spreading in the environment at the exit of a tertiary treatment wetland. The use of MSI coupled with the prediction of xenobiotic metabolites yielded novel insights into plant metabolism during chronical exposure to low doses of a mixture of micropollutants.
Nadia Barsoum - One of the best experts on this subject based on the ideXlab platform.
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abrupt drops in water table level influence the development of populus nigra and Salix Alba seedlings of different ages
Wetlands, 2011Co-Authors: Helene Guilloy, Eduardo Gonzalez, Etienne Muller, Francine M R Hughes, Nadia BarsoumAbstract:Early seedling establishment is a demographic bottleneck for the sexual regeneration of many riparian tree species such as Populus nigra and Salix Alba, two dominant species of European floodplains. Immediately after spring germination, seedling roots must track receding water tables to avoid desiccation. This may be especially difficult if the groundwater recession is too abrupt. In this study, seedling survival and growth under different abrupt drops in water table levels were examined using an experimental facility that allowed continuous and non-destructive measurements of above- and below-ground seedling development. A Cox proportional hazards regression model showed that the risk of mortality for a seedling was significantly lower in P. nigra than in S. Alba, was lower for older than for younger seedlings, and increased with greater drops in water table level. In fact, almost no seedlings survived abrupt water level drops ≥40 cm. However, no substantial differences in any of the growth parameters were observed between species, age, and water table treatments, as shown by R-ANOVA and paired tests. This suggests that abrupt drops in water table level did not stimulate plant growth but only favoured the survival of the most resistant individuals. These findings should be considered when designing improved water flow prescriptions along managed river courses in Europe.
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relative contributions of sexual and asexual regeneration strategies in populus nigra and Salix Alba during the first years of establishment on a braided gravel bed river
Evolutionary Ecology, 2001Co-Authors: Nadia BarsoumAbstract:Populus nigra L. var betulifolia and Salix Alba L. var Alba are early successional riparian tree species threatened throughout Continental Europe by significant changes to the natural physical processes governing their natural habitat – geomorphologically active floodplains. River management activities have dramatically altered natural patterns of river flow and rates of sediment delivery along rivers, with possible consequences for the balance between sexual and asexual regeneration strategies in these species. Conservation strategies will benefit from a greater understanding of the ways in which dynamic physical processes on the floodplain influence sexual and asexual recruitment. This paper describes a field survey investigating the relative abundance and spatial distributions of P. nigra and S. Alba sexual and asexual recruits during the first years of establishment along a braided gravel bed river. Sexual and asexual recruits were identified by excavation along transects in a wet and a dry field season and distributional differences were described in terms of elevation on the floodplain, local sediment type and exposure to floodwaters. Regeneration was overwhelmingly from seed in the first 2–3 years following recruitment, but poor survival rates among sexual recruits saw a shift in the relative abundance of regeneration strategies over time. In relating hydrological data to recruitment, unseasonal flood disturbances had a negative effect on recruitment from seed and a positive effect on vegetative regeneration. Seedlings were associated with fine sediment deposits and were restricted primarily to low elevations on the flood plain, while asexual recruits had a wider spatial distribution. Certain microsite types were unique to either regeneration strategy.
Loïc Maurer - One of the best experts on this subject based on the ideXlab platform.
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Xenobiotics metabolization in Salix Alba leaves uncovered by mass spectrometry imaging
Metabolomics, 2019Co-Authors: Claire Villette, Loïc Maurer, Adrien Wanko, Dimitri HeintzAbstract:Introduction Micropollutants are increasingly monitored as their presence in the environment is rising due to human activities, and they are potential threats to living organisms. Objectives This study aimed at understanding the role of plants in xenobiotics removal from polluted environments by following xenobiotics metabolism in leaf tissues. Methods Different classes of micropollutants were investigated using liquid chromatography (LC) coupled to quadrupole-time of flight (Q-TOF) high resolution mass spectrometry (HRMS). The tissue localization of xenobiotics in the leaves of a spontaneous (not planted by humans) Salix Alba growing near the water flux was further investigated using matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI). Results The LC-Q-TOF analysis revealed the distribution of micropollutants in three different compartments of a tertiary treatment wetland. When further investing the metabolic profile of S. Alba leaves using MSI, different distribution patterns were observed in specific leaf tissues. Xenobiotic metabolites were predicted and could also be tentatively identified in S. Alba leaves, shedding new light on the metabolic processes at play in leaves to manage xenobiotics uptake from a polluted environment. Conclusion Using complementary metabolomics approaches, this study performed a large-scale exploration of micropollutants spreading in the environment at the exit of a tertiary treatment wetland. The use of MSI coupled with the prediction of xenobiotic metabolites yielded novel insights into plant metabolism during chronical exposure to low doses of a mixture of micropollutants.
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xenobiotics metabolization in Salix Alba leaves uncovered by mass spectrometry imaging
Metabolomics, 2019Co-Authors: Claire Villette, Loïc Maurer, Adrien Wanko, Dimitri HeintzAbstract:INTRODUCTION: Micropollutants are increasingly monitored as their presence in the environment is rising due to human activities, and they are potential threats to living organisms. OBJECTIVES: This study aimed at understanding the role of plants in xenobiotics removal from polluted environments by following xenobiotics metabolism in leaf tissues. METHODS: Different classes of micropollutants were investigated using liquid chromatography (LC) coupled to quadrupole-time of flight (Q-TOF) high resolution mass spectrometry (HRMS). The tissue localization of xenobiotics in the leaves of a spontaneous (not planted by humans) Salix Alba growing near the water flux was further investigated using matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI). RESULTS: The LC-Q-TOF analysis revealed the distribution of micropollutants in three different compartments of a tertiary treatment wetland. When further investing the metabolic profile of S. Alba leaves using MSI, different distribution patterns were observed in specific leaf tissues. Xenobiotic metabolites were predicted and could also be tentatively identified in S. Alba leaves, shedding new light on the metabolic processes at play in leaves to manage xenobiotics uptake from a polluted environment. CONCLUSION: Using complementary metabolomics approaches, this study performed a large-scale exploration of micropollutants spreading in the environment at the exit of a tertiary treatment wetland. The use of MSI coupled with the prediction of xenobiotic metabolites yielded novel insights into plant metabolism during chronical exposure to low doses of a mixture of micropollutants.
Claire Villette - One of the best experts on this subject based on the ideXlab platform.
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Xenobiotics metabolization in Salix Alba leaves uncovered by mass spectrometry imaging
Metabolomics, 2019Co-Authors: Claire Villette, Loïc Maurer, Adrien Wanko, Dimitri HeintzAbstract:Introduction Micropollutants are increasingly monitored as their presence in the environment is rising due to human activities, and they are potential threats to living organisms. Objectives This study aimed at understanding the role of plants in xenobiotics removal from polluted environments by following xenobiotics metabolism in leaf tissues. Methods Different classes of micropollutants were investigated using liquid chromatography (LC) coupled to quadrupole-time of flight (Q-TOF) high resolution mass spectrometry (HRMS). The tissue localization of xenobiotics in the leaves of a spontaneous (not planted by humans) Salix Alba growing near the water flux was further investigated using matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI). Results The LC-Q-TOF analysis revealed the distribution of micropollutants in three different compartments of a tertiary treatment wetland. When further investing the metabolic profile of S. Alba leaves using MSI, different distribution patterns were observed in specific leaf tissues. Xenobiotic metabolites were predicted and could also be tentatively identified in S. Alba leaves, shedding new light on the metabolic processes at play in leaves to manage xenobiotics uptake from a polluted environment. Conclusion Using complementary metabolomics approaches, this study performed a large-scale exploration of micropollutants spreading in the environment at the exit of a tertiary treatment wetland. The use of MSI coupled with the prediction of xenobiotic metabolites yielded novel insights into plant metabolism during chronical exposure to low doses of a mixture of micropollutants.
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xenobiotics metabolization in Salix Alba leaves uncovered by mass spectrometry imaging
Metabolomics, 2019Co-Authors: Claire Villette, Loïc Maurer, Adrien Wanko, Dimitri HeintzAbstract:INTRODUCTION: Micropollutants are increasingly monitored as their presence in the environment is rising due to human activities, and they are potential threats to living organisms. OBJECTIVES: This study aimed at understanding the role of plants in xenobiotics removal from polluted environments by following xenobiotics metabolism in leaf tissues. METHODS: Different classes of micropollutants were investigated using liquid chromatography (LC) coupled to quadrupole-time of flight (Q-TOF) high resolution mass spectrometry (HRMS). The tissue localization of xenobiotics in the leaves of a spontaneous (not planted by humans) Salix Alba growing near the water flux was further investigated using matrix-assisted laser desorption ionization (MALDI) mass spectrometry imaging (MSI). RESULTS: The LC-Q-TOF analysis revealed the distribution of micropollutants in three different compartments of a tertiary treatment wetland. When further investing the metabolic profile of S. Alba leaves using MSI, different distribution patterns were observed in specific leaf tissues. Xenobiotic metabolites were predicted and could also be tentatively identified in S. Alba leaves, shedding new light on the metabolic processes at play in leaves to manage xenobiotics uptake from a polluted environment. CONCLUSION: Using complementary metabolomics approaches, this study performed a large-scale exploration of micropollutants spreading in the environment at the exit of a tertiary treatment wetland. The use of MSI coupled with the prediction of xenobiotic metabolites yielded novel insights into plant metabolism during chronical exposure to low doses of a mixture of micropollutants.
