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您的检索式：作者名="Ruojun DING"
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| 1 | Extracts from Chinese Seabuckthorn Berry Have Antimicrobial Activity in vitro显示文摘Chinese seabuckthorn berry contains functional components. The berry was extracted by ethanol-water solution. MTT assay and growth rate method were applied to determine antibacterial ability in vitro of the extract solution. The antibacterial and antifungal assay indicated that the extract exhibited different degree of inhibitory activity. The result showed that the extract at a concentration of 1 250 mg/L had the maximum inhibitory effect against Escherichia coli, Bacillus subtilis, and Staphylococcus aureus. Inhibitory effect against B. subtilis was much larger than that against the other two bacterial species. MIC values(minimum inhibitory concentration) of the extract on three bacterial species were 5 000, 1 250, and 1 000 mg/L respectively. IC_(50)(50% inhibiting concentration) evaluation of Trichoderma viride, Rhizopus stolonifer, Aspergillus niger, Penicillium expansum, and Vintage Red indicated that the berry had the strongest inhibitory effect against P. expansum(5 520 mg/L), while it had the weakest inhibitory effect against R. stolonifer(18 870 mg/L). The results proved that seabuckthorn berry had highly effective and comprehensive antimicrobial function. | Ruojun DING Yang BI Jixin LI Yumei JIANG | 2016 | Agricultural Science & Technology2016，17，6： | 3 |
| 2 | Expanding our understanding of marine viral diversity through metagenomic analyses of biofilms显示文摘Recent metagenomics surveys have provided insights into the marine virosphere.However,these surveys have focused solely on viruses in seawater,neglecting those associated with biofilms.By analyzing 1.75 terabases of biofilm metagenomic data,3974 viral sequences were identified from eight locations around the world.Over 90%of these viral sequences were not found in previously reported datasets.Comparisons between biofilm and seawater metagenomes identified viruses that are endemic to the biofilm niche.Analysis of viral sequences integrated within biofilm-derived microbial genomes revealed potential functional genes for trimeric autotransporter adhesin and polysaccharide metabolism,which may contribute to biofilm formation by the bacterial hosts.However,more than 70%of the genes could not be annotated.These findings show marine biofilms to be a reservoir of novel viruses and have enhanced our understanding of natural virus-bacteria ecosystems. | Wei Ding Ruojun Wang Zhicong Liang Rui Zhang Pei-Yuan Qian Weipeng Zhan | 2021 | Marine Life Science & Technology2021，3，3： | 0 |
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