Fungal endophytes alleviate salt stress in wheat in terms of growth, ion homeostasis and osmoregulation
| Autor: | Brahim Lotmani, R. Kouadria, M. Bouzouina |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Plant Roots
Salt Stress Applied Microbiology and Biotechnology Plant use of endophytic fungi in defense 03 medical and health sciences Osmoregulation Endophytes Homeostasis Proline Photosynthesis Sugar Triticum 030304 developmental biology 0303 health sciences biology 030306 microbiology Inoculation Fungi food and beverages Salt Tolerance General Medicine biology.organism_classification Salinity Horticulture Ion homeostasis Seedlings Seedling Biotechnology |
| Zdroj: | Journal of Applied Microbiology. 130:913-925 |
| ISSN: | 1365-2672 1364-5072 |
| DOI: | 10.1111/jam.14804 |
| Popis: | Aims This study examined the ability of isolated endophytic fungi to confer salt stress tolerance on wheat. Methods and results Tolerance of pot-grown wheat in greenhouse to salt stress was measured by estimating emergence rate, growth, relative water content, photosynthetic pigments biosynthesis, Na+ and K+ contents, as well as sugar and proline levels under salt stress in inoculated wheat seedlings. Chaetomium coarctatum (66·7%) and Alternaria chlamydospora (56·7%) improved wheat seedling emergence under moderate salinity (2·5 dS m-1 ) compared to noninoculated plant (50%). However, under severe salinity (14 dS m-1 ), wheat emergence was enhanced only by A. chlamydospora. Additionally, A. chlamydospora and Fusarium equiseti enhanced root growth under saline conditions. The tested endophytes exhibited high proline content relative to control. Chaetomium coarctatum showed the highest leaf sugar level under saline stress. Conclusion Endophytic fungi bio-inoculation improved wheat salt stress tolerance. Significance and impact of the study The capacity of endophytic fungi to increase wheat tolerance under salinity stress and to improve growth could be applicable to agriculture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text