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Secretion mechanism and adhesive mechanism of diatoms: Direct evidence from the quantitative analysis
Guan, Yu1; Chen, Rongrong1,2; Sun, Gaohui1; Liu, Qi1; Liu, Jingyuan1; Yu, Jing1; Lin, Cunguo3; Wang, Jun1
Source PublicationMICRON
Corresponding AuthorChen, Rongrong( ; Wang, Jun(
AbstractDiatoms are one of the biofouling species attached to the substrate that can cause substrate corrosion, fuel consumption and destruction of the ecological balance. Therefore, the study of single-cellfouling organisms, particularly, the quantitative analysis of extracellular polymeric substances (EPS) is essential for antifouling. Atomic Force Microscope (AFM) was used to quantify three types of diatoms: Nitzschia closterium (N. closterium), Phaeodactylum tricornutum (P. tricornutum) and Halamphora sp. The situation of N. closterium was analyzed multiple times and the results showed that the adhesion value range of N. closterium with nacked chromatophores was three times larger than the mature one. The discovery of the EPS secretion from chromatophore is discussed in this paper, and the proposed mechanism has special implications to study the adhesive protein. Adhesion capabilities of different diatom genera and species were revealed as well. The average adhesion values of N. closterium, P. tricornutum and Halamphora sp. were about 1.7 nN, 3.3 nN and 2.5 nN, respectively, which suggest P. tricornutum could be a better candidate for testing diatom resistance on epoxy materials in the lab. Experimental data and discussions in this paper provide insights for further study of diatoms in the field of antifouling.
KeywordMarine diatoms Chromatophore Extracellular polymeric substances Atomic force microscope Nanomechanical properties
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[NSFC51603053] ; Domain Foundation of Equipment Advance Research of 13th Five-year Plan[61409220419] ; Shandong Key Laboratory of Corrosion Science[KLCS201902] ; Fundamental Research Funds of the Central University[3072020CF1022] ; Defense Industrial Technology Development Program[JCKY2018604C011] ; International S&T Cooperation Program of China (ISTCP)[2015DFA50050]
WOS Research AreaMicroscopy
WOS SubjectMicroscopy
WOS IDWOS:000595874000001
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorChen, Rongrong; Wang, Jun
Affiliation1.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Shandong Key Lab Corros Sci, Qingdao 266071, Peoples R China
3.Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Qingdao 266101, Peoples R China
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Guan, Yu,Chen, Rongrong,Sun, Gaohui,et al. Secretion mechanism and adhesive mechanism of diatoms: Direct evidence from the quantitative analysis[J]. MICRON,2021,140:7.
APA Guan, Yu.,Chen, Rongrong.,Sun, Gaohui.,Liu, Qi.,Liu, Jingyuan.,...&Wang, Jun.(2021).Secretion mechanism and adhesive mechanism of diatoms: Direct evidence from the quantitative analysis.MICRON,140,7.
MLA Guan, Yu,et al."Secretion mechanism and adhesive mechanism of diatoms: Direct evidence from the quantitative analysis".MICRON 140(2021):7.
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