Cargando…
Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf
Leaf cuticle sorption is one important process for the uptake of environment pollutants in plants, and mixed powder including adaxial and abaxial cuticle is generally used to demonstrate the sorption behavior. However, the difference of adaxial and abaxial cuticle on plant cuticle sorption is not we...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7038059/ https://www.ncbi.nlm.nih.gov/pubmed/32046160 http://dx.doi.org/10.3390/ijerph17031061 |
_version_ | 1783500566917283840 |
---|---|
author | Li, Yungui Luo, Xiang Bai, Xueying Lv, Wenxuan Liao, Yang |
author_facet | Li, Yungui Luo, Xiang Bai, Xueying Lv, Wenxuan Liao, Yang |
author_sort | Li, Yungui |
collection | PubMed |
description | Leaf cuticle sorption is one important process for the uptake of environment pollutants in plants, and mixed powder including adaxial and abaxial cuticle is generally used to demonstrate the sorption behavior. However, the difference of adaxial and abaxial cuticle on plant cuticle sorption is not well understood. Abaxial cuticle (PAC) and adaxial cuticle (PBC) were isolated from hypostomatic Photinia serrulata to investigate their adsorption of a model radionuclide (strontium). The elemental composition and FTIR spectra for two cuticles were quite similar and both show high affinity (H/C, 1.59 and 1.65) and polarity ((O + N)/C, 0.470 and 0.499). Both adsorption isotherms fit well with Langmuir model (R(2), 0.97 and 0.97), and the maximum adsorption capacity of PAC was 12.1 mg/g, little higher than that of PBC (10.3 mg/g). Adsorption of strontium increased with the increase of pH, and the maximum was attained when pH ≥4. Electrostatic attraction was demonstrated to be the main mechanism of -strontium adsorption onto PAC and PBC, and the similar adsorption of adaxial and abaxial cuticle was consistent with their similar isoelectric point. |
format | Online Article Text |
id | pubmed-7038059 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70380592020-03-10 Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf Li, Yungui Luo, Xiang Bai, Xueying Lv, Wenxuan Liao, Yang Int J Environ Res Public Health Article Leaf cuticle sorption is one important process for the uptake of environment pollutants in plants, and mixed powder including adaxial and abaxial cuticle is generally used to demonstrate the sorption behavior. However, the difference of adaxial and abaxial cuticle on plant cuticle sorption is not well understood. Abaxial cuticle (PAC) and adaxial cuticle (PBC) were isolated from hypostomatic Photinia serrulata to investigate their adsorption of a model radionuclide (strontium). The elemental composition and FTIR spectra for two cuticles were quite similar and both show high affinity (H/C, 1.59 and 1.65) and polarity ((O + N)/C, 0.470 and 0.499). Both adsorption isotherms fit well with Langmuir model (R(2), 0.97 and 0.97), and the maximum adsorption capacity of PAC was 12.1 mg/g, little higher than that of PBC (10.3 mg/g). Adsorption of strontium increased with the increase of pH, and the maximum was attained when pH ≥4. Electrostatic attraction was demonstrated to be the main mechanism of -strontium adsorption onto PAC and PBC, and the similar adsorption of adaxial and abaxial cuticle was consistent with their similar isoelectric point. MDPI 2020-02-07 2020-02 /pmc/articles/PMC7038059/ /pubmed/32046160 http://dx.doi.org/10.3390/ijerph17031061 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Li, Yungui Luo, Xiang Bai, Xueying Lv, Wenxuan Liao, Yang Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf |
title | Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf |
title_full | Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf |
title_fullStr | Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf |
title_full_unstemmed | Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf |
title_short | Adsorption of Strontium onto Adaxial and Abaxial Cuticle of Photinia serrulata Leaf |
title_sort | adsorption of strontium onto adaxial and abaxial cuticle of photinia serrulata leaf |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7038059/ https://www.ncbi.nlm.nih.gov/pubmed/32046160 http://dx.doi.org/10.3390/ijerph17031061 |
work_keys_str_mv | AT liyungui adsorptionofstrontiumontoadaxialandabaxialcuticleofphotiniaserrulataleaf AT luoxiang adsorptionofstrontiumontoadaxialandabaxialcuticleofphotiniaserrulataleaf AT baixueying adsorptionofstrontiumontoadaxialandabaxialcuticleofphotiniaserrulataleaf AT lvwenxuan adsorptionofstrontiumontoadaxialandabaxialcuticleofphotiniaserrulataleaf AT liaoyang adsorptionofstrontiumontoadaxialandabaxialcuticleofphotiniaserrulataleaf |