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| Qiu,Shanlian; Wang,MK; Wang,Fei; Chen,Jichen; Li,Xiaoyan; Li,Qinghua; Lin,Cheng; Lin,Xinjian. |
| A field experiment established in 1980 was conducted to evaluate the effects of open drainage ditch applied for water removal on bacterial and fungal communities of cold waterlogged paddy soils in 2011. In this experiment, traditional plate counting and temperature gradient gel electrophoresis were employed to characterize the abundance and diversity of soil bacterial and fungal communities. Four different distances from the open drainage ditch, 5, 15, 25 and 75 m with different degrees of drainage were designed for this study. Maximum populations of culturable aerobic bacteria and fungi were at 15-m distance while minimum populations were at 75-m distance. Significant differences (p < 0.05) in fungal populations were observed at all distances from open... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundance; Bacterial and fungal communities; Diversity; Open drainage ditch. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300050 |
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| Wang,Fei; Luo,Hailan; Song,Guohua; Liu,Chang; Wang,Jianguo; Xu,Jingliang; Su,Xiuhong; Ma,Xu Yuan. |
| Background: Light can be absorbed by bacterial pigment and affects its growth. Prodigiosin is a red pigment found in various bacterial species. The purpose of this study was to investigate the impacts of light on prodigiosin production, biomass formation, and membrane integrity of Serratia marcescens y2. Results: S. marcescens y2 grew better and produced more intracellular prodigiosin in darkness than in illumination. The pigment leakage ratio from cells was detected more in light than in darkness conditions. Ethidium bromide uptake assay could visually prove the prodigiosin-related loss of membrane integrity under illumination. A higher concentration of malondialdehyde (MDA) was detected in light-treated culture than in darkness. Tests of different light... |
| Tipo: Journal article |
Palavras-chave: Ethidium bromide; Homogeneous light; Malondialdehyde; Red pigment. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000400007 |
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