Effect of nitrogen source and nickel concentration on green microalga Botryococcus braunii growth and its remediation potential

Effect of nitrogen source and nickel concentration on green microalga Botryococcus braunii growth and its remediation potential

The effects of NO 3 − and/or NH 4 + , and nickel on the growth and photosynthesis-respiration metabolism of Botryococcus braunii were analyzed. NO 3 − , NH 4 + and Ni(II) removal capacity are described in terms of metabolic and non-metabolic processes. Results demonstrate that B. braunii can live in...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied phycology Vol. 34; no. 6; pp. 2941 - 2954
Main Authors: Areco, M. M., Rojas, L., Noseda, D. G., Passucci, V., Rotella, N., Curutchet, G.
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 01-12-2022
Springer Nature B.V
Subjects:
Adsorption
Biomedical and Life Sciences
Biotechnology
Botryococcus braunii
Ecology
Freshwater & Marine Ecology
Growth
Heavy metals
Life Sciences
Metabolic pathways
Metabolism
Metal concentrations
Nickel
pH effects
Photosynthesis
Plant Physiology
Plant Sciences
Productivity
Removal
Ni(II)
NO
NH
Remediation
Chlorophyta
Metabolism
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of NO 3 − and/or NH 4 + , and nickel on the growth and photosynthesis-respiration metabolism of Botryococcus braunii were analyzed. NO 3 − , NH 4 + and Ni(II) removal capacity are described in terms of metabolic and non-metabolic processes. Results demonstrate that B. braunii can live in a pH range from 3 to 9 . The total productivity (P) and the productivity of the growth phase (P v ) are higher (≈ 58 and 61 mg L −1  day −1 , respectively) when the medium contains NH 4 + , than when it contains NO 3 − (≈ 45 and 51 mg L −1  day −1 , respectively). NH 4 + consumption results in a decrease of the pH of the medium from 7 to 3. Botryococcus braunii reverse the acidic conditions of the medium when NO 3 − is metabolized (pH from 5 to 8–8.5). Ni(II)-specific removal is mainly due to adsorption and increases along with pH and initial metal concentration. The Hill model best describes the adsorption experimental data. The stoichiometric correlations between H + desorption and nickel adsorption were 1:5, 1:3 and 1:2 for pH values of 5, 6 and 7, respectively. The present work is a new contribution on the biotechnological potential of B. braunii to live and grow at different pH and to remove NO 3 − , NH 4 + , and Ni(II) by metabolic and non-metabolic pathways. Graphical abstract
ISSN:0921-8971
1573-5176
DOI:10.1007/s10811-022-02847-3