Impact of high or low levels of phosphorus and high sodium in soils on productivity and stress tolerance of Arundo donax plants
Copyright © 2019. Published by Elsevier B.V.
| Publié dans: | Plant science : an international journal of experimental plant biology. - 1985. - 289(2019) vom: 22. Dez., Seite 110260 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2019
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| Accès à la collection: | Plant science : an international journal of experimental plant biology |
| Sujets: | Journal Article Abiotic stress Giant reed Isoprene emission Phosphorus Salinity Transcriptome Soil 27YLU75U4W Sodium |
| Résumé: | Copyright © 2019. Published by Elsevier B.V. The potential of Arundo donax to grow in degraded soils, characterized by excess of salinity (Na+), and phosphorus deficiency (-P) or excess (+P) also coupled with salinity (+NaP), was investigated by combining in vivo plant phenotyping, quantification of metabolites and ultrastructural imaging of leaves with a transcriptome-wide screening. Photosynthesis and growth were impaired by + Na, -P and + NaP. While + Na caused stomatal closure, enhanced biosynthesis of carotenoids, sucrose and isoprene and impaired anatomy of cell walls, +P negatively affected starch production and isoprene emission, and damaged chloroplasts. Finally, +NaP largely inhibited photosynthesis due to stomatal limitations, increased sugar content, induced/repressed a number of genes 10 time higher with respect to + P and + Na, and caused appearance of numerous and large plastoglobules and starch granules in chloroplasts. Our results show that A. donax is sensitive to unbalances of soil ion content, despite activation of defensive mechanisms that enhance plant resilience, growth and biomass production of A. donax under these conditions |
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| Description: | Date Completed 30.01.2020 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1873-2259 |
| DOI: | 10.1016/j.plantsci.2019.110260 |