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11.
Makridis P Martins S Vercauteren T Van Driessche K Decamp O Dinis MT 《Letters in applied microbiology》2005,40(4):274-277
AIMS: The aim of this study was to evaluate the effect of six bacterial strains on gilthead sea bream larvae (Sparus aurata). METHODS AND RESULTS: Six bacterial strains isolated from well-performing live food cultures were identified by sequencing fragments of their 16s rDNA genome to the genus level as Cytophaga sp., Roseobacter sp., Ruergeria sp., Paracoccus sp., Aeromonas sp. and Shewanella sp. Survival rates of gilthead sea bream larvae transferred to seawater added these bacterial strains at concentrations of 6 +/- 0.3 x 10(5) bacteria ml(-1) were similar to those of larvae transferred to sterilized seawater and showed an average of 86% at 9 days after hatching, whereas, survival rates of larvae transferred to filtered seawater were lower (P < 0.05), and showed an average of 39%, 9 days after hatching. CONCLUSION: Several bacterial strains isolated from well-performing live food cultures showed a positive effect for sea bream larvae when compared with filtered seawater. SIGNIFICANCE AND IMPACT OF THE STUDY: The approach used in this study could be applied as an in vivo evaluation method of candidate probiotic strains used in the rearing of marine fish larvae. 相似文献
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J. Vercauteren G. Massiot T. Sevenet J. Lévy L. Le Men-Olivier J. Le Men 《Phytochemistry》1979,18(10):1729-1731
Six known indole alkaloids were isolated from the leaves and stem bark of Alstonia odontophora: vincamajine, 11-methoxy- akuammicine, quebrachidine, pleiocarpamine, antirhine, pleiocorine and pleiocraline, along with the novel bisindole, N (I′)-demethylpleiocorine. 相似文献
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Dukka B KC 《BMC structural biology》2009,9(1):12-9
Background
Common structural biology methods (i.e., NMR and molecular dynamics) often produce ensembles of molecular structures. Consequently, averaging of 3D coordinates of molecular structures (proteins and RNA) is a frequent approach to obtain a consensus structure that is representative of the ensemble. However, when the structures are averaged, artifacts can result in unrealistic local geometries, including unphysical bond lengths and angles. 相似文献18.
Phytophthora ramorum is a recently introduced pathogen in Europe and North America consisting of three clonal lineages. Due to the limited intralineage genetic variation, only a few polymorphic markers are available for use in studies involving the epidemiology and evolution of P. ramorum. A total of 159 primer pairs for candidate polymorphic SSR loci were tested with universal labeling. Four polymorphic microsatellite loci were identified within the NA1 lineage and one within the NA2 lineage, demonstrating the power and flexibility of the screening technique. The markers may significantly increase the number of genotypes that can be identified and as such can help better characterize the North American lineages of P. ramorum. 相似文献
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Mijia Lu Yuexiu Zhang Piyush Dravid Anzhong Li Cong Zeng Mahesh KC Sheetal Trivedi Himanshu Sharma Supranee Chaiwatpongsakorn Ashley Zani Adam Kenney Chuanxi Cai Chengjin Ye Xueya Liang Jianming Qiu Luis Martinez-Sobrido Jacob S. Yount Prosper N. Boyaka Shan-Lu Liu Mark E. Peeples Amit Kapoor Jianrong Li 《Journal of virology》2021,95(20)