THE EFFECT OF DIFFERENT TREATMENT DURATIONS WITH INDOLE-3-ACETIC ACID (IAA)-PRODUCING ENDOPHYTIC BACILLUS SPP. ON TOMATO 'AICHA' UNDER SALINE CONDITIONS

Hadj Ahmed Belaouni; Guenouz Dif; Omrane Toumatia; Atika Meklat; Florence Mathieu; Abdelghani Zitouni

doi:10.55251/jmbfs.5559

THE EFFECT OF DIFFERENT TREATMENT DURATIONS WITH INDOLE-3-ACETIC ACID (IAA)-PRODUCING ENDOPHYTIC BACILLUS SPP. ON TOMATO 'AICHA' UNDER SALINE CONDITIONS

Authors

Hadj Ahmed Belaouni Ziane Achour University of Djelfa https://orcid.org/0000-0002-5907-2047
Guenouz Dif Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria https://orcid.org/0000-0002-7194-1460
Omrane Toumatia Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria
Atika Meklat Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria
Florence Mathieu Ecole nationale supérieure agronomique de Toulouse, Laboratoire de génie chimique, Université de Toulouse, CNRS, INPT, UPS
Abdelghani Zitouni Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Algiers, Algeria

DOI:

https://doi.org/10.55251/jmbfs.5559

Keywords:

Endophytes, Bacillus, indole-3-acetic acid (IAA), Treatment durations, Salt stress, Tomato

Abstract

This study aimed to investigate the effect of indole-3-acetic acid (IAA)-producing endophytes from saline environments on survival and growth of tomato under salt stress, using different treatment times. Twenty-five endophytic bacteria were isolated from halophytes (Atriplex halimus L., Tamarix aphylla L.) issued from saline regions (Algeria). Five strains were selected based on tolerance to NaCl. A polyphasic taxonomic study was conducted. The selected strains were assigned to the Bacillus cereus group. Quantification of IAA production was done by high-performance liquid chromatography (HPLC). An in vitro test of growth promotion/protection of tomato 'Aicha' was conducted under saline conditions (50 mM, 75 mM, 100 mM, and 125 mM), for different durations of seed biopriming (1h, 3h, and 12h). Endophytes led to a significant amelioration of salt stress in tomato 'Aicha' at all salinity levels, depending on treatment times, indicating the necessity of optimizing this crucial factor.

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Published

2023-09-04

How to Cite

Belaouni, H. A., Dif, G., Toumatia, O., Meklat, A., Mathieu, F., & Zitouni, A. (2023). THE EFFECT OF DIFFERENT TREATMENT DURATIONS WITH INDOLE-3-ACETIC ACID (IAA)-PRODUCING ENDOPHYTIC BACILLUS SPP. ON TOMATO ’AICHA’ UNDER SALINE CONDITIONS. Journal of Microbiology, Biotechnology and Food Sciences, 13(3), e5559. https://doi.org/10.55251/jmbfs.5559

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Issue

Vol. 13 No. 3 (2023): December - January

Section

Microbiology

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