Yunjiang Yu

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The moderately halophilic bacterium Virgibacillus halodenitrificans PDB-F2 copes with salinity by synthesizing or taking up compatible solutes. The main compatible solutes in this strain were ectoine and hydroxyectoine, as determined by 1H nuclear magnetic resonance spectroscopy (1H-NMR). A high-performance liquid chromatography (HPLC) analysis showed that(More)
Assessing oil pollution using traditional field-based methods over large areas is difficult and expensive. Remote sensing technologies with good spatial and temporal coverage might provide an alternative for monitoring oil pollution by recording the spectral signals of plants growing in polluted soils. Total petroleum hydrocarbon concentrations of soils and(More)
Little attention has been paid to how four dominant shrub species distributed in semi-arid areas respond to the combined effects of temperature and water supply. Seedlings of four species were grown in a glasshouse for eight weeks at air temperatures of 12.5/22.5, 15/25, 17.5/27.5, and 20/30 degrees C (night/day) and with water supplies of 37.5, 75, 112.5,(More)
By the methods of ANOVA, correlative analysis and regression analysis, this paper studied the ecological effects of landscape structure on desertification process of a typical Keerqin sandy land at spatial and temporal scales. The results showed that any single factor of landscape structure indices had no remarkable impact on desertification (significant at(More)
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