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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Iron phytostabilization by Leucaena leucocephala

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Author(s):
Pires Bomfim, Nayane Cristina [1] ; Aguilar, Jailson Vieira [1] ; de Paiva, Wesller da Silva [1] ; de Souza, Lucas Anjos [2] ; Justino, Gilberto Costa [3, 4] ; Faria, Glaucia Amorim [5] ; Camargos, Liliane Santos [1]
Total Authors: 7
Affiliation:
[1] Sao Paulo State Univ Unesp, Dept Biol & Zootechny, Sch Engn, Ilha Solteira Plant Metab Physiol Lab, Rua Moncao 226, BR-15385000 Sao Paulo - Brazil
[2] Inst Fed Goiano, Campus Rio Verde, Rio Verde, GO - Brazil
[3] Fed Univ Alagoas State UFAL, Ave Lourival Melo Mota S-N, BR-57072900 Maceio, AL - Brazil
[4] Hlth Sci Inst, Bot Setor, Ave Lourival Melo Mota S-N, BR-57072900 Maceio, AL - Brazil
[5] Sao Paulo State Univ Unesp, Math Dept, Sch Engn, Av Brazil Sul, BR-15385000 Ilha Solteira, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: SOUTH AFRICAN JOURNAL OF BOTANY; v. 138, p. 318-327, MAY 2021.
Web of Science Citations: 1
Abstract

This study investigated the potential for tolerance, absorption, and translocation of iron (Fe) by Leucaena leucocephala, as well as the response of the photosynthetic mechanism and the phytoremediation potential of L. leucocephala grown in soil with concentrations of Fe (0, 100, 200, 300, 400, and 500 mg Fe/dm(3) of soil). The chlorophyll content and the photosynthetic apparatus showed a significant difference between treatments: the chlorophyll content, transpiration rate, and stomatal conductance were higher in the treatment 200 mg Fe/dm(3) of soil, while the photosynthetic rate was higher in the treatment 500 mg Fe/dm(3) of soil in relation to the control. From 300 mg Fe/dm(3) of soil onward, there was a significant reduction in the number of leaves, mass, and biomass of L. leucocephala. The species is tolerant to the Fe doses analyzed. Availability of Fe in the soil after the cultivation of L. leucocephala decreased, evidencing the plant capacity of Fe absorption, which accumulated mostly in the roots, and only % of Fe was translocated to the shoots. The highest Fe accumulation per biomass was 9.48 mg, at 200 mg Fe/dm(3) of soil. The amount of Fe translocated and accumulated in L. leucocephala is directly related to its biomass production thus the dose 200 mg Fe/dm(3) of soil allows the best performance of phytoremediation potential. Although plant growth is affected by treatments of 300, 400 and 500 mg Fe/dm(3) of soil and Fe accumulation is less, L. leucocephala is able to tolerate and phytostabilize soil Fe with potential for use in phytoremediation, mainly because it is a kind of phytostabilization of Fe. (C) 2021 SAAB. Published by Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 18/01498-6 - Evaluation of the phytoremediation potential of tropical legumes in soils contaminated with copper, boron and manganese
Grantee:Liliane Santos de Camargos
Support type: Regular Research Grants
FAPESP's process: 18/13008-3 - Growth, tolerance and phytoremediation potential of Leucaena leucocephala in copper and iron contaminated soils
Grantee:Nayane Cristina Pires Bomfim
Support type: Scholarships in Brazil - Master