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Gui-Fen Zhou,Li-Qin Li,Jiemiao Lu,Jing Li,Chong Yao,Peng Sun,Kaohua Liu,Yan Dong,Luping Qin,Xiao-Dong Qian 한국원예학회 2020 Horticulture, Environment, and Biotechnology Vol.61 No.3
The quality of commercial saff ron largely depends on apocarotenoid levels. Whether they are aff ected by diff erent fl owercultivation regimes remains unknown. In present study, apocarotenoid levels and the expression profi les of 12 genes relatedto apocarotenoid biosynthesis between fi eld- and indoor-cultivated Crocus sativus L. were analyzed during stigma development. Under both cultivation regimes, apocarotenoid accumulation and gene expression showed similar profi les, fi rstsharply increasing and then gradually decreasing with stigma development, which suggested the coordinated function ofgene expression and apocarotenoid accumulation. However, the rate of increase/decrease varied widely between two blossomregimes at diff erent developmental stages. Based on correlation analysis, βCH1 and ZDS seemed to play a more crucial rolein apocarotenoid accumulation under both cultivation regimes. At anthesis, the total apocarotenoid level in saff ron cultivatedin the fi eld was higher than that cultivated indoors. This may be due to lower gene expression levels in the apocarotenoidpathway, especially βCH1 , ZDS , and CCD2 , and higher CCD4a and NCED expression in the competitive pathway in saff roncultivated indoors than that in the fi eld, which indicated higher conversion in apocarotenoid biosynthesis fl ux from crocinsand picrocrocin synthesis to β-ionone and the ABA biosynthetic branch in saff ron cultivated indoors. These results providevaluable information for modifying planting mode to enhance saff ron quality.
Han-Qin Shen,Zhuan-Qiang Yan,Fan-Gui Zeng,Chang-Tao Liao,Qing-Feng Zhou,Jian-Ping Qin,Qingmei Xie,Yingzuo Bi,Feng Chen 대한수의학회 2015 Journal of Veterinary Science Vol.16 No.3
As part of our ongoing influenza surveillance program in South China, 19 field strains of H9N2 subtype avian influenza viruses (AIVs) wereisolated from dead or diseased chicken flocks in Guangdong province, South China, between 2012 and 2013. Hemagglutinin (HA) genes ofthese strains were sequenced and analyzed and phylogenic analysis showed that 12 of the 19 isolates belonged to the lineage h9.4.2.5, whilethe other seven belonged to h9.4.2.6. Specifically, we found that all of the viruses isolated in 2013 belonged to lineage h9.4.2.5. The lineageh9.4.2.5 viruses contained a PSRSSR↓GLF motif at HA cleavage site, while the lineage h9.4.2.6 viruses contained a PARSSR↓GLF at thesame position. Most of the isolates in lineage h9.4.2.5 lost one potential glycosylation site at residues 200–202, and had an additional oneat residues 295–297 in HA1. Notably, 19 isolates had an amino acid exchange (Q226L) in the receptor binding site, which indicated that theviruses had potential affinity of binding to human like receptor. The present study shows the importance of continuing surveillance of newH9N2 strains to better prepare for the next epidemic or pandemic outbreak of H9N2 AIV infections in chicken flocks.
Shi-Ying Zhou,Gui-He Qin,Yang Xun,Yu-Bo Jin 보안공학연구지원센터 2008 International Journal of Security and Its Applicat Vol.2 No.3
Eelectronic device technology has been monopolized by binary system for many years. The circs not only makes it impossible to break through the existing technology bottleneck, but also brings a lot of potential safety problems. Aiming at this question, a new electronic communication technology is presented in this paper. The technology quantifies the time axis and the voltage axis synchronously, uses the quantified time dot as the address of the communication, and realizes the transmission of the multi-system [1] data via transmitting the multi-steps voltage quantification. The technology solves the bottleneck problem of the speed, circuit and electromagnetism in the electronic communication, changes the binary system coding mode and communication connection form of the electronic device, reduces the transmission quantity of the redundant information, advances the security of electronic system and network, debases the complexity of the devices connection, enhances the rate of the processing and the transmission, simplifies the transformation between the difference protocols. The experimental results approve the validity and the robustness of the technology.
Chong Yao,Xiao-Dong Qian,Gui-Fen Zhou,Shu-Wei Zhang,Li-Qin Li,Qiaosheng Guo 한국식품과학회 2019 Food Science and Biotechnology Vol.28 No.2
The red stigmas of saffron are one of the mostexpensive spices in the world and serve as a traditionalChinese medicine. More saffron has been cultivated inChina, and different drying technologies have been studied. However, a comprehensive and comparative analysis ofdifferent drying approaches has not been well studied. Inthis study, we compared electric oven and vacuum ovendrying approaches on saffron. We found saffron was driedquicker under high vacuum drying mode with high temperatureand the quicker drying rate provided, the moreopen microstructural interstices on the saffron surface. Both methods were best fit to Midilli and Kucuk model. Besides, the coloring, aroma and bitterness strength afterdrying showed the similar results. In sum, our data suggestedthe optimal drying temperature was 100 C for20 min for two evaluated methods, however consideringthe machine cost, the electric oven drying would be the firstchoice.