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Synthesis of C-coordinated O-carboxymethyl chitosan metal complexes and evaluation of their antifungal activity
Liu, Weixiang1,2,3; Qin, Yukun1,2; Liu, Song1,2; Xing, Ronge1,2; Yu, Huahua1,2; Chen, Xiaolin1,2; Li, Kecheng1,2; Li, Pengcheng1,2
2018-03-19
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume8Pages:10
Corresponding AuthorQin, Yukun(ykqin@qdio.ac.cn) ; Li, Pengcheng(pcli@qdio.ac.cn)
AbstractBased on a condensation reaction, a chitosan-derivative-bearing amino pyridine group was prepared and subsequently followed by coordination with cupric ions, zinc ions and nickel ions to synthesize chitosan metal complexes. The calculations using the density functional theory (DFT) show that the copper ions and nickel ions underwent dsp(2) hybridization, the zinc ions underwent sp(3) hybridization, and they all formed a coordination bond with the carbon atom in the p-pi conjugate group. The antifungal properties of O-CSPX-M against Phytophthora capsici (P. capsici), Verticillium alboatrum (V. alboatrum), Botrytis cinerea (B. cinerea) and Rhizoctonia solani (R. solani) were also assayed. Apparently, chitosan metal complexes showed enhanced antifungal activity against four fungi at the tested concentrations compared to that of chitosan. It was shown that Cu complexes can inhibit the growth of P. capsici 100%, and Ni complexes can inhibit the growth of B. cinerea 77.1% at a concentration of 0.4 mg/mL and 0.2 mg/mL, respectively. The pot experiment also verified the result. In addition, the phytotoxicity experiment showed that O-CSPX-M had no obvious toxicity on wheat leaves. This kind of complexes may represent as an attractive direction for chemical modifications of metal fungicides.
DOI10.1038/s41598-018-23283-9
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41306071] ; Scientific and Technological Innovation Project - Qingdao National Laboratory for Marine Science and Technology[2015ASKJ02] ; Public Science and Technology Research Funds Projects of Ocean[201305016-2] ; Public Science and Technology Research Funds Projects of Ocean[201405038-2] ; CAS STS Program[KFJ-SW-STS-143]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000427688100038
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/158401
Collection实验海洋生物学重点实验室
Corresponding AuthorQin, Yukun; Li, Pengcheng
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Drugs & Bioprod, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu, Weixiang,Qin, Yukun,Liu, Song,et al. Synthesis of C-coordinated O-carboxymethyl chitosan metal complexes and evaluation of their antifungal activity[J]. SCIENTIFIC REPORTS,2018,8:10.
APA Liu, Weixiang.,Qin, Yukun.,Liu, Song.,Xing, Ronge.,Yu, Huahua.,...&Li, Pengcheng.(2018).Synthesis of C-coordinated O-carboxymethyl chitosan metal complexes and evaluation of their antifungal activity.SCIENTIFIC REPORTS,8,10.
MLA Liu, Weixiang,et al."Synthesis of C-coordinated O-carboxymethyl chitosan metal complexes and evaluation of their antifungal activity".SCIENTIFIC REPORTS 8(2018):10.
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