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Your search keyword '"Huang, Guanmin"' showing total 32 results
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32 results on '"Huang, Guanmin"'

24. Association of Versican Gene Polymorphisms with Intracranial Aneurysm Susceptibility in the Eastern Chinese Population

Author

Zhu,Lei, Yu,Chuanqing, Zhou,Shuping, Xue,Min, Chen,Jie, Wu,Meijun, Dong,Shuyang, Huang,Guanmin, Chang,Yueyue, Zhang,Mei, Zhu,Lei, Yu,Chuanqing, Zhou,Shuping, Xue,Min, Chen,Jie, Wu,Meijun, Dong,Shuyang, Huang,Guanmin, Chang,Yueyue, and Zhang,Mei

Abstract

Lei Zhu,1 Chuanqing Yu,1 Shuping Zhou,2 Min Xue,1 Jie Chen,3 Meijun Wu,4 Shuyang Dong,1 Guanmin Huang,5 Yueyue Chang,1 Mei Zhang1 1Department of Neurology, First Affiliated Hospital of Anhui University of Science and Technology, First People’s Hospital of Huainan, Huainan, 232007, People’s Republic of China; 2Department of Gastroenterology, First Affiliated Hospital of Anhui University of Science and Technology,First People’s Hospital of Huainan, Huainan, 232007, People’s Republic of China; 3Department of Neurosurgery, General Hospital of Huainan Oriental Hospital Group, Huainan, 232007, People’s Republic of China; 4Department of Comprehensive Health Care, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, People’s Republic of China; 5Department of Neurosurgery, First Affiliated Hospital of Anhui University of Science and Technology, First People’s Hospital of Huainan, Huainan, 232007, People’s Republic of ChinaCorrespondence: Chuanqing Yu; Mei ZhangDepartment of Neurology, First Affiliated Hospital of Anhui University of Science and Technology, First People’s Hospital of Huainan, 203 Huaibin Road, Huainan, 232007, Anhui Province, People’s Republic of ChinaTel +86-18949669880; +86-18949669978Email yuchuanqin1967@126.com; hnzhangmei2008@126.comObjective: The proteoglycan versican (VCAN) plays an important role in extracellular matrix (ECM) assembly, and diminished maintenance of the ECM has been increasingly regarded as an important factor in the development of intracranial aneurysms (IAs). Previous studies have revealed that single-nucleotide polymorphisms (SNPs) of the VCAN gene are associated with susceptibility to IAs in European or Japanese populations. However, the association between IA susceptibility and VCAN SNPs in the Eastern Chinese population remains unclear. This study aimed to investigate the associations of the SNPs rs251124, rs2287926, and rs173686 with IA susceptibility in the

Published
2021

31. Increase in root density induced by coronatine improves maize drought resistance in North China

Author

Guo, Yuling, Huang, Guanmin, Guo, Qing, Peng, Chuanxi, Liu, Yingru, Zhang, Mingcai, Li, Zhaohu, Zhou, Yuyi, and Duan, Liusheng

Abstract

Drought stress caused by insufficient irrigation or precipitation impairs agricultural production worldwide. In this study, a two-year field experiment was conducted to investigate the effect of coronatine (COR), a functional analog of jasmonic acid (JA), on maize drought resistance. The experiment included two water treatments (rainfed and irrigation), four COR concentrations (mock, 0 μmol L−1; A1, 0.1 μmol L−1; A2, 1 μmol L−1; A3, 10 μmol L−1) and two maize genotypes (Fumin 985 (FM985), a drought-resistant cultivar and Xianyu 335 (XY335), a drought-sensitive cultivar). Spraying 1 μmol L−1COR at seedling stage increased surface root density and size, including root dry matter by 12.6%, projected root area by 19.0%, average root density by 51.9%, and thus root bleeding sap by 28.2% under drought conditions. COR application also increased leaf area and SPAD values, a result attributed to improvement of the root system and increases in abscisic acid (ABA), JA, and salicylic acid (SA) contents. The improvement of leaves and roots laid the foundation for increasing plant height and dry matter accumulation. COR application reduced anthesis and silking interval, increasing kernel number per ear. COR treatment at 1 μmol L−1increased the yield of XY335 and FM985 by 7.9% and 11.0%, respectively. Correlation and path analysis showed that grain yields were correlated with root dry weight and projected root area, increasing maize drought resistance mainly via leaf area index and dry matter accumulation. Overall, COR increased maize drought resistance mainly by increasing root dry weight and root area, with 1 μmol L−1COR as an optimal concentration.

Published
2022
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32. Prediction of vertical distribution of SPAD values within maize canopy based on unmanned aerial vehicles multispectral imagery.

Author

Chen B, Huang G, Lu X, Gu S, Wen W, Wang G, Chang W, Guo X, and Zhao C

Abstract

Real-time monitoring of canopy chlorophyll content is significant in understanding crop growth status and guiding precision agricultural management. Remote sensing methods have demonstrated great potential in this regard. However, the spatiotemporal heterogeneity of chlorophyll content within crop canopies poses challenges to the accuracy and stability of remote sensing estimation models. Hence, this study aimed to develop a novel method for estimating canopy chlorophyll content (represented by SPAD values) in maize ( Zea mays L.) canopies. Firstly, we investigated the spatiotemporal distribution patterns of maize canopy SPAD values under varying nitrogen application rates and different growth stages. The results revealed a non-uniform, "bell-shaped" curve distribution of maize canopy SPAD values in the vertical direction. Nitrogen application significantly influenced the distribution structure of SPAD values within the canopy. Secondly, we achieved satisfactory results by fitting the Lorentz peak distribution function to the SPAD values of different leaf positions in maize. The fitting performance, evaluated using R 2 and RMSE, ranged from 0.69 to 0.98 and 0.45 to 3.59, respectively, for the year 2021, and from 0.69 to 0.77 and 2.38 to 6.51, respectively, for the year 2022.Finally, based on the correlation between canopy SPAD values and vegetation indices (VIs) at different growth stages, we identified the sensitive leaf positions for the selected CCCI (Canopy Chlorophyll Index) in each growth stage. The 6th (r = 0.662), 4th (r = 0.816), 12th (r = 0.722), and 12th (r = 0.874) leaf positions exhibited the highest correlations. Compared to the estimation model using canopy wide SPAD values, the model based on sensitive leaf positions showed improved accuracy, with increases of 34%, 3%, 20%, and 3% for each growth stage, respectively. In conclusion, the findings of this study contribute to the enhancement of chlorophyll content estimation models in crop canopies and provide valuable insights for the integration of crop growth models with remote sensing methods., Competing Interests: Authors GH, XL, and WW was employed by the company Nongxin Science & Technology Beijing Co., Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Chen, Huang, Lu, Gu, Wen, Wang, Chang, Guo and Zhao.)

Published
2023
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