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A taxonomic study was carried out on bacterial strain H3(T), which was isolated from the toxic marine diatom Pseudo-nitzschia multiseries. Cells of strain H3(T) were Gram-stain-negative, rod-shaped, non-motile and capable of reducing nitrate to nitrite, but not denitrification. Growth was observed at NaCl concentrations of 1-9%, pH 6-12 and 10-37 °C. It was(More)
Rare sugars, referred to as monosaccharides and their derivatives that rarely exist in nature, can be applied in many areas ranging from foodstuffs to pharmaceutical and nutrition industry, or as starting materials for various natural products and drug candidates. Unfortunately, an important factor restricting the utilization of rare sugars is their limited(More)
Effects of arsenite, arsenate and vanadate on human erythrocyte membrane have been assessed according to their routes passing through the membrane, their binding modes to the membrane and their influences on membrane proteins and lipids. The uptake of arsenate (1.0 mM) by cells approached a limit with intracellular arsenic of about 0.2 mM in 5 h, and was(More)
Thirty-six strains of endophytic Colletotrichum species were isolated from leaves of Bletilla ochracea Schltr. (Orchidaceae) collected from 5 sites in Guizhou, China. Seventeen different species, including 7 new species (namely C. bletillum, C. caudasporum, C. duyunensis, C. endophytum, C. excelsum-altitudum and C. guizhouensis and C. ochracea), 8(More)
The Diaporthe species include important plant pathogenic fungi with wide host ranges and geographic distributions. In this paper, species associated with Lithocarpus glabra were examined using a multi-locus phylogeny based on a combined rDNA-internal transcribed spacer (ITS), and partial translation elongation factor 1-alpha (TEF1), beta tubulin (TUB), and(More)
The marine diatom Chaetoceros muelleri grown under air (0.03% CO2), 10%, 20%, and 30% CO2 conditions was evaluated to determine its potential for CO2 reduction coupled with biodiesel production. The results indicated that C. muelleri grows well with high CO2 aeration levels (10-20%) and is induced to accumulate lipids under 10-30% CO2. In particular, the(More)
This study characterized the changes of nitric oxide (NO) production during the growth of Microcystis aerugrinosa, a cyanobacterium which usually cause cyanobacterial blooms. Results showed a drastic NO release accompanying with cell density and Chl-a content sharp rises when M. aerugrinosa grew from fifth day to sixth day. Moreover, high N:P ratio(More)
Three new species of Phomopsis causing leaf spots on multiple hosts in Gutianshan Nature Reserve are characterized and illustrated. Phylogenetic analyses and morphological characteristics are employed to justify the introduction of the new species. The phylogenetic relationships of the three new species were inferred by analyses based on combined(More)