Nutrient Loading Fosters Seagrass Productivity Under Ocean Acidification
| العنوان: | Nutrient Loading Fosters Seagrass Productivity Under Ocean Acidification |
|---|---|
| المؤلفون: | Laura Tamburello, Chiara Lauritano, Fabio Bulleri, Elena Balestri, Gabriele Procaccini, G. Pardi, Maria Cristina Buia, Chiara Ravaglioli, Antonella Capocchi, Debora Fontanini |
| المصدر: | Scientific Reports Scientific Reports, Vol 7, Iss 1, Pp 1-14 (2017) |
| بيانات النشر: | Nature Publishing Group UK, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 0106 biological sciences, lcsh:Medicine, Photosynthesis, 010603 evolutionary biology, 01 natural sciences, Article, Nutrient, Effects of global warming, Gene Expression Regulation, Plant, Seawater, lcsh:Science, Multidisciplinary, Alismatales, biology, Ecology, 010604 marine biology & hydrobiology, lcsh:R, Ocean acidification, Nutrients, Hydrogen-Ion Concentration, biology.organism_classification, Seagrass, Productivity (ecology), Posidonia oceanica, Environmental science, lcsh:Q, Epiphyte |
| الوصف: | The effects of climate change are likely to be dependent on local settings. Nonetheless, the compounded effects of global and regional stressors remain poorly understood. Here, we used CO2 vents to assess how the effects of ocean acidification on the seagrass, Posidonia oceanica, and the associated epiphytic community can be modified by enhanced nutrient loading. P. oceanica at ambient and low pH sites was exposed to three nutrient levels for 16 months. The response of P. oceanica to experimental conditions was assessed by combining analyses of gene expression, plant growth, photosynthetic pigments and epiphyte loading. At low pH, nutrient addition fostered plant growth and the synthesis of photosynthetic pigments. Overexpression of nitrogen transporter genes following nutrient additions at low pH suggests enhanced nutrient uptake by the plant. In addition, enhanced nutrient levels reduced the expression of selected antioxidant genes in plants exposed to low pH and increased epiphyte cover at both ambient and low pH. Our results show that the effects of ocean acidification on P. oceanica depend upon local nutrient concentration. More generally, our findings suggest that taking into account local environmental settings will be crucial to advance our understanding of the effects of global stressors on marine systems. |
| اللغة: | English |
| تدمد: | 2045-2322 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d24c541637f6765e24c61a73e0038721 http://europepmc.org/articles/PMC5653774 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....d24c541637f6765e24c61a73e0038721 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20452322 |
|---|