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Publication Type J
Authors Ouni, Y., A. Lakhdar, M. Rabhi, A. Smaoui, A. R. Maria and A. Chedly
Title EFFECTS OF THE HALOPHYTES TECTICORNIA INDICA AND SUAEDA FRUTICOSA ON SOIL ENZYME ACTIVITIES IN A MEDITERRANEAN SABKHA
Source International Journal of Phytoremediation
Author Keywords halophytes phytodesalination plant productivity sabkha soil biological activities semiarid zones sodic soils saline compost crop plants assay
Abstract In the present work, we studied the effectiveness of the predominant halophytes of Soliman sabkha (Tecticornia indica and Suaeda fruticosa) to promote soil biological activities and ecosystem productivity. Soil Arylsulphatese ARY, beta-glucosidase beta-GLU, phosphatase PHO, invertase INV, urease URE, and dehydogenase DES activities in Extra-and Intra-tuft halophytes and plant productivity were assessed. Results revealed a high increase of microbial community and ARY, beta-GLU, PHO, INV, URE and DES activities (+298%, +400%, +800%, +350%, +320%, +25% and +759%, respectively) in Intra-tuft rhizosphere as compared to Extra-tuft one, which is likely due to the significant decrease of salinity in the rhizosphere of Tecticornia indica and Suaeda fruticosa. Both perennial plants exhibited high productivities (7.4 t dry weight ha(-1) and 2.2 t dry weight ha(-1), respectively) and Na+-hyperaccumulating capacities (0.75 t Na+ ha(-1) and 0.22 t Na+ ha(-1), respectively), reducing salt constraint and favouring soil fertility. This constitutes a promising alternative to enhance productivity in such a salt-affected biotope by offering suitable microhabitat for annual glycophytes.
Author Address [Ouni, Youssef; Lakhdar, Abdelbasset; Rabhi, Mokded; Smaoui, Abderrazak; Chedly, Abdelly] Univ Tunis El Manar, Biotechnol Ctr Borj Cedria, Lab Extremophile Plants, Hammam Lif 2050, Tunisia. [Maria, A. Rao] Univ Naples Federico II, Dept Soil & Sci, Portici, Italy. Lakhdar, A (reprint author), Univ Tunis El Manar, Biotechnol Ctr Borj Cedria, Lab Extremophile Plants, POB 901, Hammam Lif 2050, Tunisia. abdelbasset-lak@yahoo.fr
ISSN 1522-6514
ISBN 1522-6514
29-Character Source Abbreviation Int. J. Phytoremediat.
Year Published 2013
Volume 15
Issue 2
Beginning Page 188-197
Digital Object Identifier (DOI) 10.1080/15226514.2012.687194
Unique Article Identifier WOS:000310603700007
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