Abstract

Background

Trichoderma species are able to cause significant changes in the metabolism of host plants, by that means it trigger the plant growth and increasing plant defense to diverse fungal diseases. Trichoderma harzianum has been identified as potential biocontrol agent of many phytopathogenic fungi. Therefore, the aim of this study was to assess in vitro antagonistic activity against three Diplodia isolates utilizing direct and remote confrontations methods.

Results

The results revealed that T. harzianum inhibited mycelial growth of the three phytopathogenic fungi compared to the untreated control. The percentage of growth inhibition of T. harzianum against Diplodia isolates ranged between 58 and 79% for direct confrontation and between 31 and 46% remote confrontation. Considerable antagonistic abilities of T. harzianum were exhibited against all tested Diplodia isolates. The results of both confrontations showed that the radial growth of the fungal pathogens was statistically significant (P < 0.001) and influenced by the antagonist on 6 days following incubation.

Conclusion

The findings may reveal a valuable knowledge that may be further used to find a suitable biological control contrariwise Botryosphaeria dieback caused by Diplodia species.

Details

Title
In vitro evaluation of antagonistic potentiality of Trichoderma harzianum against Diplodia spp. phytopathogenics fungi
Author
Hlaiem, Sawssen 1   VIAFID ORCID Logo  ; Yangui, Islem 2 ; Ezzine, Olfa 1 ; Ben Jamâa, Mohamed Lahbib 1 

1  University of Carthage, Laboratory of Management and Valorization of Forest Resources, National Institute for Research in Rural Engineering Water and Forest (INRGREF), Ariana, Tunisia (GRID:grid.419508.1) (ISNI:0000 0001 2295 3249) 
2  University of Carthage, Laboratory of Management and Valorization of Forest Resources, National Institute for Research in Rural Engineering Water and Forest (INRGREF), Ariana, Tunisia (GRID:grid.419508.1) (ISNI:0000 0001 2295 3249); University of Sousse, High Institute of Agronomy of Chott Mariem (ISA-CM), Chott-Mariem, Sousse, Tunisia (GRID:grid.7900.e) (ISNI:0000 0001 2114 4570) 
Pages
75
Publication year
2023
Publication date
Dec 2023
Publisher
Springer Nature B.V.
ISSN
1110-1768
e-ISSN
2536-9342
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1186/s41938-023-00719-7
ProQuest document ID
2847164148
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.