M Bouzouina1, R Kouadria1, B Lotmani1. 1. Plant Protection Laboratory, Abdelhamid Ibn Badis - Mostaganem University, Kharrouba, Mostaganem, Algeria.
Abstract
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.
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.
Authors: Rufin M K Toghueo; Iñigo Zabalgogeazcoa; Eric C Pereira; Beatriz R Vazquez de Aldana Journal: Front Plant Sci Date: 2022-05-27 Impact factor: 6.627
Authors: Ali A Badawy; Modhi O Alotaibi; Amer M Abdelaziz; Mahmoud S Osman; Ahmed M A Khalil; Ahmed M Saleh; Afrah E Mohammed; Amr H Hashem Journal: Metabolites Date: 2021-06-29