Publications by authors named "Wenqi Fang"

6 Publications

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Functional analysis of rice OSCA genes overexpressed in the arabidopsis osca1 mutant due to drought and salt stresses.

Transgenic Res 2021 Jun 19. Epub 2021 Jun 19.

Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, 100875, People's Republic of China.

Drought and salt are two major abiotic stresses that severely impact plant growth and development, as well as crop production. A previous study showed that OsOSCA1.4, one of eleven rice OSCAs (OsOSCAs), complements hyperosmolality-induced [Ca] increases (OICI), salt stress-induced [Ca] increases (SICI) and the associated growth phenotype in Arabidopsis osca1 (reduced hyperosmolality-induced [Ca] increase 1). In this study, Except for OsOSCA2.3 and OsOSCA4.1, we generated independent transgenic lines overexpressing eight other OsOSCAs in the osca1 to explore their functions in osmotic Ca signalling, stomatal movement, leaf water loss, and root growth in response to hyperosmolality and salt stress. Similar to OsOSCA1.4, overexpression of OsOSCA1.1 or OsOSCA2.2 in osca1 complemented OICI and SICI, as well as stomatal closure and root growth in response to hyperosmolality and salt stress treatments, and drought-related leaf water loss. In addition, overexpression of OsOSCA1.2, OsOSCA1.3 or OsOSCA2.1 in osca1 restored OICI and SICI, whereas overexpression of OsOSCA2.5 or OsOSCA3.1 did not. Moreover, osca1 overexpressing these five OsOSCAs exhibited various abiotic stress-associated growth phenotypes. However, overexpression of OsOSCA2.4 did not have any of these effects. These results indicated that multiple members of the OsOSCA family have redundant functions in osmotic sensing and diverse roles in stress adaption.
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http://dx.doi.org/10.1007/s11248-021-00270-xDOI Listing
June 2021

Genome wide association study of the whiteness and colour related traits of flour and dough sheets in common wheat.

Sci Rep 2021 Apr 22;11(1):8790. Epub 2021 Apr 22.

State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology of Shandong Province, Group of Wheat Quality and Molecular Breeding, College of Agronomy, Shandong Agricultural University, Tai'an, 271000, Shandong, People's Republic of China.

Flour whiteness and colour are important factors that influence the quality of wheat flour and end-use products. In this study, a genome wide association study focusing on flour and dough sheet colour using a high density genetic map constructed with 90K single nucleotide polymorphism arrays in a panel of 205 elite winter wheat accessions was conducted in two different locations in 2 years. Eighty-six significant marker-trait associations (MTAs) were detected for flour whiteness and the brightness index (L* value), the redness index (a* value), and the yellowness index (b* value) of flour and dough sheets (P < 10) on homologous group 1, 2, 5 and 7, and chromosomes 3A, 3B, 4A, 6A and 6B. Four, three, eleven, eleven MTAs for the flour whiteness, L* value, a* value, b* value, and one MTA for the dough sheet L* value were identified in more than one environment. Based on MATs, some important new candidate genes were identified. Of these, two candidate genes, TraesCS5D01G004300 and Gsp-1D, for BS00000020_51 were found in wheat, relating to grain hardness. Other candidate genes were associated with proteins, the fatty acid biosynthetic process, the ketone body biosynthetic process, etc.
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http://dx.doi.org/10.1038/s41598-021-88241-4DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8062544PMC
April 2021

Tribological Performance Studies of Waterborne Polyurethane Coatings with Aligned Modified Graphene [email protected]

ACS Omega 2021 Apr 26;6(13):9243-9253. Epub 2021 Mar 26.

Baosteel Research Institute, Baoshan Iron and Steel Co., Ltd., Shanghai 201900, China.

In this study, the chemical graft method was used to connect modified graphene oxide (GO) and FeO through covalent bonds. To make full use of the tribological properties of graphene, aligned graphene [email protected]/waterborne polyurethane ([email protected]/WPU) was prepared in a magnetic field and tribological experiments were carried out on it. The [email protected] was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and a transmission electron microscopy (TEM). The characterization results show that FeO is successfully loaded on the surface of GO and [email protected] has better dispersibility in WPU. Among the coatings without alignment inducement of [email protected], 0.5 wt % [email protected]/WPU has the lowest friction coefficient and wear rate. In addition, the 0.5 wt % aligned [email protected]/WPU composite coating has the lowest friction coefficient and wear rate compared with nonaligned and pure WPU coatings. The excellent tribological properties of the aligned composite coating come from its ability to quickly form a uniform and continuous transfer film on the friction counterpair, which avoids direct friction between the friction counterpair and the coating.
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http://dx.doi.org/10.1021/acsomega.1c00688DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8028171PMC
April 2021

Improving the Tribological and Anticorrosion Performance of Waterborne Polyurethane Coating by the Synergistic Effect between Modified Graphene Oxide and Polytetrafluoroethylene.

Nanomaterials (Basel) 2020 Jan 12;10(1). Epub 2020 Jan 12.

Shanghai Weixing Optical Co., Ltd., Shanghai 201404, China.

In this work, the effect of modified graphene oxide and polytetrafluoroethylene (PTFE) on the tribological and anticorrosion properties of waterborne polyurethane (WPU) was studied. The modified graphene oxide (MGO) was obtained by the surface functionalization modification of graphene oxide (GO) with isophorone diisocyanate (IPDI), and MGO/WPU composite coating and MGO-PTFE/WPU composite coating with different mass fractions of MGO were prepared. The tribological and electrochemical experiment results demonstrated that the tribological properties of the coating and the corrosion resistance of the worn coating were effectively enhanced under the synergistic effect of MGO and PTFE. Finally, a mechanism was proposed to explain the improvement in anticorrosion performance of the worn coating.
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http://dx.doi.org/10.3390/nano10010137DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7022548PMC
January 2020

Discovery of Consistent QTLs of Wheat Spike-Related Traits under Nitrogen Treatment at Different Development Stages.

Front Plant Sci 2017 15;8:2120. Epub 2017 Dec 15.

Group of Wheat Quality Breeding, State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology of Shandong Province, Cooperation Innovation Centre of Efficient Production with High Annual Yield of Wheat and Corn, Agronomy College, Shandong Agricultural University, Tai'an, China.

Spike-related traits such as spike length (Sl), fertile spikelet number (Fsn), sterile spikelet number (Ssn), grain number per spike (Gns), and thousand-kernel weight (Tkw) are important factors influencing wheat yield. However, reliably stable markers that can be used for molecular breeding in different environments have not yet been identified. In this study, a double haploid (DH) population was used for quantitative trait locus (QTL) mapping of five spike-related traits under four different nitrogen (N) supply dates in two locations and years. Seventy additive QTLs with phenotypic variation ranging from 4.12 to 34.74% and 10 major epistatic QTLs were identified. Eight important chromosomal regions on five chromosomes (1B, 2B, 2D, 5D, and 6A) were found. Sixteen stable QTLs were detected for which N application had little effect. Among those stable QTLs, , and , with phenotypic variation explained (PVE) of 10.4 and 24.2%, respectively, were flanked by markers and in the same order. The QTLs , and , with PVE ranging from 4.37 to 28.43%, collocated in the - marker interval. The consistent kernel wheat QTL () on the long arm of chromosome 6A, flanked by SSR markers and , showed PVE of 5.87-15.18%. Among these stable QTLs, the two flanking markers and have been validated using different varieties and populations for selecting Sl. Therefore, these results will be of great value for marker-assisted selection (MAS) in breeding programs and will accelerate the understanding of the genetic relationships among spike-related traits at the molecular level.
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http://dx.doi.org/10.3389/fpls.2017.02120DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737097PMC
December 2017

A {0001} faceted single crystal NiS nanosheet electrocatalyst for dye-sensitised solar cells: sulfur-vacancy induced electrocatalytic activity.

Chem Commun (Camb) 2014 May;50(42):5569-71

Centre for Clean Environment and Energy, Griffith University, Gold Coast Campus, QLD 4222, Australia.

Hydrothermally synthesised single crystal NiS nanosheets with an exposed (0001) surface exhibited a light conversion efficiency of 8.62% as an electrocatalyst for dye-sensitised solar cells (DSSCs), significantly higher than that of Pt-based DSSCs (7.36%). The theoretical calculations revealed the exposed (0001) surface with superior catalytic activity owing to the existence of sulfur vacancies.
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http://dx.doi.org/10.1039/c4cc01691bDOI Listing
May 2014
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