Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate drift
Introduction: The tree Prosopis nigra is native to the Western Chaco phytogeographic region, affected by the application of glyphosate in the surrounding crops. Objective: To determine the impact of simulated glyphosate drift on growth, photosynthesis and oxidative stress in P. nigra seedlings. Meth...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad Estatal a Distancia (UNED)
2021-03-01
|
| Series: | Cuadernos de investigación UNED |
| Subjects: | |
| Online Access: | https://revistas.uned.ac.cr/index.php/cuadernos/article/view/3170 |
| _version_ | 1811190135865212928 |
|---|---|
| author | Diego Ariel Meloni Graciela Inés Bolzón |
| author_facet | Diego Ariel Meloni Graciela Inés Bolzón |
| author_sort | Diego Ariel Meloni |
| collection | DOAJ |
| description | Introduction: The tree Prosopis nigra is native to the Western Chaco phytogeographic region, affected by the application of glyphosate in the surrounding crops. Objective: To determine the impact of simulated glyphosate drift on growth, photosynthesis and oxidative stress in P. nigra seedlings. Methods: We simulated drift in seedlings at doses of 0, 200, 400 and 800 g a.e. ha-1 of glyphosate. We also measured gas exchange and modulated fluorescence emission of chlorophyll a. Results: Glyphosate reduced biomass, photosynthetic rate, and stomatal conductance. Doses of 400 and 800 g a.e. ha-1 glyphosate produced photoinhibition. The electron transport rate was sensitive to glyphosate, and it decreased at all doses of the herbicide. Glyphosate generated oxidative stress, and produced damage to membranes, because of the accumulation of H2O2 and O2.. Conclusions: Glyphosate reduces growth and photosynthesis in these seedlings. The inhibition of photosynthesis is due to stomatal closure, and alterations in the photochemical stage, associated with oxidative stress. |
| first_indexed | 2024-04-11T14:46:12Z |
| format | Article |
| id | doaj.art-ad4e8e61a52b476a905709240cff8c33 |
| institution | Directory Open Access Journal |
| issn | 1659-4266 1659-441X |
| language | English |
| last_indexed | 2024-04-11T14:46:12Z |
| publishDate | 2021-03-01 |
| publisher | Universidad Estatal a Distancia (UNED) |
| record_format | Article |
| series | Cuadernos de investigación UNED |
| spelling | doaj.art-ad4e8e61a52b476a905709240cff8c332022-12-22T04:17:39ZengUniversidad Estatal a Distancia (UNED)Cuadernos de investigación UNED1659-42661659-441X2021-03-0113110.22458/urj.v13i1.3170Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate driftDiego Ariel Meloni0Graciela Inés Bolzón1Universidad Nacional de Santiago del Estero, Facultad de Agronomía y Agroindustrias , Santiago del Estero, ArgentinaUniversidade Fedelal do Paraná, Curitiba, BrazilIntroduction: The tree Prosopis nigra is native to the Western Chaco phytogeographic region, affected by the application of glyphosate in the surrounding crops. Objective: To determine the impact of simulated glyphosate drift on growth, photosynthesis and oxidative stress in P. nigra seedlings. Methods: We simulated drift in seedlings at doses of 0, 200, 400 and 800 g a.e. ha-1 of glyphosate. We also measured gas exchange and modulated fluorescence emission of chlorophyll a. Results: Glyphosate reduced biomass, photosynthetic rate, and stomatal conductance. Doses of 400 and 800 g a.e. ha-1 glyphosate produced photoinhibition. The electron transport rate was sensitive to glyphosate, and it decreased at all doses of the herbicide. Glyphosate generated oxidative stress, and produced damage to membranes, because of the accumulation of H2O2 and O2.. Conclusions: Glyphosate reduces growth and photosynthesis in these seedlings. The inhibition of photosynthesis is due to stomatal closure, and alterations in the photochemical stage, associated with oxidative stress.https://revistas.uned.ac.cr/index.php/cuadernos/article/view/3170Algarrobo negroHerbicidesPhotosynthesisAntioxidantsEcophysiology |
| spellingShingle | Diego Ariel Meloni Graciela Inés Bolzón Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate drift Cuadernos de investigación UNED Algarrobo negro Herbicides Photosynthesis Antioxidants Ecophysiology |
| title | Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate drift |
| title_full | Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate drift |
| title_fullStr | Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate drift |
| title_full_unstemmed | Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate drift |
| title_short | Hydrogen peroxide, superoxide, lipid peroxidation and membrane damage in leaves of the tree Prosopis nigra (Fabaceae) under simulated glyphosate drift |
| title_sort | hydrogen peroxide superoxide lipid peroxidation and membrane damage in leaves of the tree prosopis nigra fabaceae under simulated glyphosate drift |
| topic | Algarrobo negro Herbicides Photosynthesis Antioxidants Ecophysiology |
| url | https://revistas.uned.ac.cr/index.php/cuadernos/article/view/3170 |
| work_keys_str_mv | AT diegoarielmeloni hydrogenperoxidesuperoxidelipidperoxidationandmembranedamageinleavesofthetreeprosopisnigrafabaceaeundersimulatedglyphosatedrift AT gracielainesbolzon hydrogenperoxidesuperoxidelipidperoxidationandmembranedamageinleavesofthetreeprosopisnigrafabaceaeundersimulatedglyphosatedrift |