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Protective Effect of Methyl Jasmonate on Photosynthetic Performance and Its Association with Antioxidants in Contrasting Aluminum-Resistant Blueberry Cultivars Exposed to Aluminum
- Source :
- Journal of Soil Science and Plant Nutrition. 19:203-216
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- Methyl jasmonate (MeJA) protective effect on photosynthetic performance and its association with antioxidants in two highbush blueberry (Vaccinium corymbosum L.) cultivars with contrasting aluminum (Al) resistance under Al toxicity was determined. Legacy (Al-resistant) and Bluegold (Al-sensitive) cultivars were subjected to control, MeJA, Al, and their combination (Al+MeJA) for 0, 24, and 48 h under greenhouse conditions. Al concentration, oxidative damage (malondialdehyde (MDA) and H2O2 concentrations), antioxidant activity (AA), superoxide dismutase (SOD) and catalase (CAT) activities, total polyphenols (TPP), chlorogenic acid, and in vivo photosynthetic performance were determined. The exposure to Al toxicity increased the Al concentration (up to 15-fold) and oxidative damage (up to 5.5-fold) compared to the control at 48 h, despite the antioxidant responses (SOD and CAT activities) were increased (up to 4-fold), mainly in the Al-sensitive cultivar at 48 h. Concomitantly, the photosynthetic performance was strongly reduced in the Al-sensitive cultivar (1.6-fold), while the Al-resistant cultivar was more stable during the experiment. However, when cultivars were exposed to Al+MeJA, the Al accumulation and oxidative damage strongly decreased (7-fold and 1.6-fold, respectively), increasing AA, SOD and CAT activities, and TPP in both cultivars during the first hours of Al exposure. The MeJA application decreased Al uptake and stimulated antioxidant pathways, which may counteract the toxic Al effects, protecting the photosynthetic apparatus in both cultivars, being more evident in the Al-sensitive cultivar.
- Subjects :
- 0106 biological sciences
Antioxidant
medicine.medical_treatment
Soil Science
Plant Science
01 natural sciences
Superoxide dismutase
chemistry.chemical_compound
Chlorogenic acid
medicine
Cultivar
Methyl jasmonate
biology
food and beverages
04 agricultural and veterinary sciences
biology.organism_classification
Malondialdehyde
Horticulture
chemistry
Catalase
040103 agronomy & agriculture
biology.protein
0401 agriculture, forestry, and fisheries
Agronomy and Crop Science
010606 plant biology & botany
Vaccinium
Subjects
Details
- ISSN :
- 07189516 and 07189508
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- Journal of Soil Science and Plant Nutrition
- Accession number :
- edsair.doi...........ce80675d77afefdd0f0877f299e563be