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Microbial ecological associations in the surface sediments of Bohai Strait 期刊论文
JOURNAL OF OCEANOLOGY AND LIMNOLOGY, 2018, 卷号: 36, 期号: 3, 页码: 795-804
作者:  Wang Bin;  Liu Hongmei;  Tang Haitian;  Hu Xiaoke
Adobe PDF(1152Kb)  |  收藏  |  浏览/下载：287/92  |  提交时间：2020/07/08
surface sediment  network analysis  Bohai Strait  evolution of microbial associations  
雨生红球藻PHOT的基因克隆和生物信息学分析 期刊论文
西南农业学报, 2018, 卷号: 30, 期号: 12, 页码: 2639-2647
作者:  崔红利;  陈军;  王林萍;  胡章立;  秦松
收藏  |  浏览/下载：182/0  |  提交时间：2020/07/07
Phototropin  Full-length of cDNA  Structure domain  Phylogeny and evolution  Haematococcus pluvialis  向光素  cDNA全长  结构域  系统进化  雨生红球藻  
烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系 期刊论文
海洋科学, 2018, 卷号: 42, 期号: 8, 页码: 90-97
作者:  姜明;  赵国强;  李兆冉;  盛彦清
浏览  |  Adobe PDF(1528Kb)  |  收藏  |  浏览/下载：518/229  |  提交时间：2020/07/08
还原性无机硫  活性铁  深层柱状沉积物  硫化度  矿化度  Reduced inorganic sulfur  Reactive iron  Deep core sediments  Degree of pyritization  Degree of sulfidity  The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer  reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.