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Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora
Cotton leaf spot (Alternaria macrospora) is a widespread disease that occurs in the main cotton-producing area of China. In managing this disease, a novel chitosan-based biopesticide, an amphiphilic N-alkyl-O-carboxymethyl chitosan derivative, was prepared. The product was selected from variations o...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6016155/ https://www.ncbi.nlm.nih.gov/pubmed/29992151 http://dx.doi.org/10.1155/2018/5236324 |
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author | Liu, Qili Zhang, Jianxin Li, Dong Lang, Jianfeng Zai, Shasha Hao, Jianjun Wang, Xiaohui |
author_facet | Liu, Qili Zhang, Jianxin Li, Dong Lang, Jianfeng Zai, Shasha Hao, Jianjun Wang, Xiaohui |
author_sort | Liu, Qili |
collection | PubMed |
description | Cotton leaf spot (Alternaria macrospora) is a widespread disease that occurs in the main cotton-producing area of China. In managing this disease, a novel chitosan-based biopesticide, an amphiphilic N-alkyl-O-carboxymethyl chitosan derivative, was prepared. The product was selected from variations of chitosan with different molecular structures, which were obtained via a two-step reaction. First, carboxymethyl chitosans with varying molecular sizes were obtained by etherification with chloroacetic acid; then the carboxymethyl chitosan was alkylated with C4–C12 fatty aldehyde through a Schiff-base reaction. This procedure resulted in derivatives of amphiphilic N-alkyl-O-carboxymethyl chitosan, which showed strong antifungal activities against A. macrospora, and the efficacy was determined by its molecular structure. |
format | Online Article Text |
id | pubmed-6016155 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-60161552018-07-10 Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora Liu, Qili Zhang, Jianxin Li, Dong Lang, Jianfeng Zai, Shasha Hao, Jianjun Wang, Xiaohui Biomed Res Int Research Article Cotton leaf spot (Alternaria macrospora) is a widespread disease that occurs in the main cotton-producing area of China. In managing this disease, a novel chitosan-based biopesticide, an amphiphilic N-alkyl-O-carboxymethyl chitosan derivative, was prepared. The product was selected from variations of chitosan with different molecular structures, which were obtained via a two-step reaction. First, carboxymethyl chitosans with varying molecular sizes were obtained by etherification with chloroacetic acid; then the carboxymethyl chitosan was alkylated with C4–C12 fatty aldehyde through a Schiff-base reaction. This procedure resulted in derivatives of amphiphilic N-alkyl-O-carboxymethyl chitosan, which showed strong antifungal activities against A. macrospora, and the efficacy was determined by its molecular structure. Hindawi 2018-06-11 /pmc/articles/PMC6016155/ /pubmed/29992151 http://dx.doi.org/10.1155/2018/5236324 Text en Copyright © 2018 Qili Liu et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Liu, Qili Zhang, Jianxin Li, Dong Lang, Jianfeng Zai, Shasha Hao, Jianjun Wang, Xiaohui Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora |
title | Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora |
title_full | Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora |
title_fullStr | Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora |
title_full_unstemmed | Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora |
title_short | Inhibition of Amphiphilic N-Alkyl-O-carboxymethyl Chitosan Derivatives on Alternaria macrospora |
title_sort | inhibition of amphiphilic n-alkyl-o-carboxymethyl chitosan derivatives on alternaria macrospora |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6016155/ https://www.ncbi.nlm.nih.gov/pubmed/29992151 http://dx.doi.org/10.1155/2018/5236324 |
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