Title: Inhibition of seed germination and seedling growth of Triticum aestivum L. by industrial wastewaters

Authors: Hedi Ben Mansour; Wissem Mnif; Dorra Amira; Ridha Mosrati; Leila Chekir-Ghedira

Addresses: Laboratoire de Biotechnologie et Valorisation de Bio Géo Ressources, Institut Supérieur de Biotechnologie, Université de la Manouba BioTechPole Sidi Thabet, 2020, Sidi Thabet, 2020 Ariana, Tunisia; Laboratoire des Aliments Bioprocédés, Toxicologie, Environnements (ABTE - EA 4651), IUT de Caen Université de Caen Basse-Normandie Campus 2, Boulevard Maréchal Juin, 14032 Caen Cedex, France ' Unité de Recherche 03/UR/O9-01 Génome, Diagnostic Immunitaire et Valorisation, Institut Supérieur de Biotechnologie-Monastir, Université de Monastir, Tunisia; Institut Supérieur de Biotechnologie, Université de la Manouba BioTechPole Sidi Thabet, 2020 Sidi Thabet, 2020 Ariana, Tunisia ' Faculté de Pharmacie, Rue Avicenne 5000, Monastir, Tunisia ' Laboratoire des Aliments Bioprocédés, Toxicologie, Environnements (ABTE - EA 4651), IUT de Caen Université de Caen Basse-Normandie Campus 2, Boulevard Maréchal Juin, 14032 Caen Cedex, France ' Unité de recherche Pharmacognosie Biologie Moléculaire, Faculté de Pharmacie de Monastir, Rue Avicenne 5000 Monastir, Tunisia

Abstract: The present study was undertaken to determine the effect of different concentrations of wastewaters treated with Pseudomonas putida on various growth indices of durum wheat (Triticum aestivum L.) seeds. Significant decreases in terms of root and leaf growth were observed. The phytotoxicity of textile wastewater was more pronounced on initiation times, germination percentages, root and leaf growth, and fresh seed weights than those of the two other effluents. Industrial wastewaters were also noted to strongly induce lipid peroxidation in the roots and leaves. Overall, the results indicated that phytotoxicity was completely removed from the industrial wastewaters after aerobic treatment with P. putida.

Keywords: industrial effluent; phytotoxicity; seed germination; plant growth; Pseudomonas putida mt-2; lipid peroxidation; wastewater treatment; durum wheat seeds; Triticum aestivum L; root growth; leaf growth; textile wastewater; aerobic treatment.

DOI: 10.1504/IJETM.2013.053638

International Journal of Environmental Technology and Management, 2013 Vol.16 No.3, pp.244 - 258

Received: 20 Dec 2011
Accepted: 25 May 2012

Published online: 17 Sep 2014 *

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