Arbuscular mycorrhizal symbiosis and achene mucilage have independent functions in seedling growth of a desert shrub
Copyright © 2018 Elsevier GmbH. All rights reserved.
| Publié dans: | Journal of plant physiology. - 1979. - 232(2019) vom: 01. Jan., Seite 1-11 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2019
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| Accès à la collection: | Journal of plant physiology |
| Sujets: | Journal Article Artemisia sphaerocephala Biomass Chlorophyll Nutrients Phytohormones DNA, Fungal DNA, Plant Plant Growth Regulators Plant Mucilage plus... |
| Résumé: | Copyright © 2018 Elsevier GmbH. All rights reserved. Arbuscular mycorrhizal (AM) symbiosis can play a role in improving seedling establishment in deserts, and it has been suggested that achene mucilage facilitates seedling establishment in sandy deserts and that mucilage biodegradation products may improve seedling growth. We aimed to determine if AM symbiosis interacts with achene mucilage in regulating seedling growth in sand dunes. Up to 20 A M fungal taxa colonized Artemisia sphaerocephala roots in the field, and mycorrhizal frequency and colonization intensity exhibited seasonal dynamics. In the greenhouse, total biomass of AM fungal-colonized plants decreased, whereas the root/shoot ratio increased. AM symbiosis resulted in increased concentrations of nutrients and chlorophyll and decreased concentrations of salicylic acid (SA) and abscisic acid (ABA). Achene mucilage had a weaker effect on biomass and on nutrient, chlorophyll, and phytohormone concentration than did AM symbiosis. We suggest that AM symbiosis and achene mucilage act independently in enhancing seedling establishment in sandy deserts |
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| Description: | Date Completed 22.01.2019 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1618-1328 |
| DOI: | 10.1016/j.jplph.2018.11.010 |