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In situ effects of Lathyrus sativus- PGPR to remediate and restore quality and fertility of Pb and Cd polluted soils.
Ecotoxicol Environ Saf. 2020 Apr 01; 192:110260.EE

Abstract

Rehabilitation of heavy metals contaminated soils using association between legumes and beneficial rhizospheric microorganisms such as plant growth-promoting bacteria (PGPR) is a major challenge in agronomy. The present study focuses on assessing the impact of field inoculation with I1 (Rhizobium leguminosarum (M5) + Bacillus simplex + Luteibacter sp. + Variovorax sp.) and I5 (R. leguminosarum (M5) + Pseudomonas fluorescens (K23) + Luteibacter sp. + Variovorax sp.) on growth and phytoremediation potential of Lathyrus sativus plants as well as soil quality and fertility. The experimentation was carried out in mine tailings of northern Tunisia. Obtained Results indicated that the in situ inoculation with I1 and I5 significantly increased the shoots (47% and 22%) and roots dry weights (22% and 29%), as well as nodules number (48% and 31%), respectively, compared to uninoculated plants. The maximum Pb accumulation in the above-ground tissue was recorded in plants inoculated with I5 (1180.85 mg kg-1 DW). At the same time, we noticed a reduction in total Pb and Cd in the rhizosphere of inoculated plots mainly in those inoculated with I5 reaching 46% and 61%, respectively, compared to uninoculated plots. Likewise, I5 inoculum significantly enhanced soil total nitrogen (35%) and available phosphorus (100%), as well as β-glucosidase (16%), urease (32%) and alkaline phosphatase (12%) activities. Here we demonstrate the usefulness of L. sativus inoculated with I5 inoculum formed by mixing efficient and heavy metals resistant PGPR to boost an efficient reclamation of Cd and Pb contaminated soils and, ultimately, to improve their quality and fertility.

Authors+Show Affiliations

Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia; National Agronomic Institute of Tunisia, University of Carthage, Tunis, Tunisia.Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.Laboratory of Plant Molecular Physiology, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia. Electronic address: moez.jbara@cbbc.rnrt.tn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32050135

Citation

Abdelkrim, Souhir, et al. "In Situ Effects of Lathyrus Sativus- PGPR to Remediate and Restore Quality and Fertility of Pb and Cd Polluted Soils." Ecotoxicology and Environmental Safety, vol. 192, 2020, p. 110260.
Abdelkrim S, Jebara SH, Saadani O, et al. In situ effects of Lathyrus sativus- PGPR to remediate and restore quality and fertility of Pb and Cd polluted soils. Ecotoxicol Environ Saf. 2020;192:110260.
Abdelkrim, S., Jebara, S. H., Saadani, O., Abid, G., Taamalli, W., Zemni, H., Mannai, K., Louati, F., & Jebara, M. (2020). In situ effects of Lathyrus sativus- PGPR to remediate and restore quality and fertility of Pb and Cd polluted soils. Ecotoxicology and Environmental Safety, 192, 110260. https://doi.org/10.1016/j.ecoenv.2020.110260
Abdelkrim S, et al. In Situ Effects of Lathyrus Sativus- PGPR to Remediate and Restore Quality and Fertility of Pb and Cd Polluted Soils. Ecotoxicol Environ Saf. 2020 Apr 1;192:110260. PubMed PMID: 32050135.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - In situ effects of Lathyrus sativus- PGPR to remediate and restore quality and fertility of Pb and Cd polluted soils. AU - Abdelkrim,Souhir, AU - Jebara,Salwa Harzalli, AU - Saadani,Omar, AU - Abid,Ghassen, AU - Taamalli,Wael, AU - Zemni,Hassène, AU - Mannai,Khediri, AU - Louati,Faten, AU - Jebara,Moez, Y1 - 2020/02/09/ PY - 2019/09/25/received PY - 2020/01/25/revised PY - 2020/01/27/accepted PY - 2020/2/13/pubmed PY - 2020/5/16/medline PY - 2020/2/13/entrez KW - Field conditions KW - Heavy metals KW - Inoculation KW - Lathyrus sativus KW - PGPR KW - Phytoremediation SP - 110260 EP - 110260 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 192 N2 - Rehabilitation of heavy metals contaminated soils using association between legumes and beneficial rhizospheric microorganisms such as plant growth-promoting bacteria (PGPR) is a major challenge in agronomy. The present study focuses on assessing the impact of field inoculation with I1 (Rhizobium leguminosarum (M5) + Bacillus simplex + Luteibacter sp. + Variovorax sp.) and I5 (R. leguminosarum (M5) + Pseudomonas fluorescens (K23) + Luteibacter sp. + Variovorax sp.) on growth and phytoremediation potential of Lathyrus sativus plants as well as soil quality and fertility. The experimentation was carried out in mine tailings of northern Tunisia. Obtained Results indicated that the in situ inoculation with I1 and I5 significantly increased the shoots (47% and 22%) and roots dry weights (22% and 29%), as well as nodules number (48% and 31%), respectively, compared to uninoculated plants. The maximum Pb accumulation in the above-ground tissue was recorded in plants inoculated with I5 (1180.85 mg kg-1 DW). At the same time, we noticed a reduction in total Pb and Cd in the rhizosphere of inoculated plots mainly in those inoculated with I5 reaching 46% and 61%, respectively, compared to uninoculated plots. Likewise, I5 inoculum significantly enhanced soil total nitrogen (35%) and available phosphorus (100%), as well as β-glucosidase (16%), urease (32%) and alkaline phosphatase (12%) activities. Here we demonstrate the usefulness of L. sativus inoculated with I5 inoculum formed by mixing efficient and heavy metals resistant PGPR to boost an efficient reclamation of Cd and Pb contaminated soils and, ultimately, to improve their quality and fertility. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/32050135/In_situ_effects_of_Lathyrus_sativus__PGPR_to_remediate_and_restore_quality_and_fertility_of_Pb_and_Cd_polluted_soils_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0147-6513(20)30099-3 DB - PRIME DP - Unbound Medicine ER -