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Cyanophage decay and its causes in eutrophic freshwater

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WOS被引频次:5
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成果类型:
期刊论文
作者:
Liu, Wei;Cheng, Kai;Zhao, Yijun;Wu, Yijin;Cai, Chongfa;Lu Shaoyong;Jin Xiangcan
通讯作者:
Cai, CF
作者机构:
[Zhao, Yijun; Liu, Wei; Cheng, Kai] Cent China Normal Univ, Hubei Key Lab Urban Water Environm Ecol, Wuhan 430079, Peoples R China.
[Lu Shaoyong; Jin Xiangcan] Chinese Res Inst Environm Sci, State Environm Protect Key Lab Lake Pollut Contro, Res Ctr Lake Environm, Beijing 100012, Peoples R China.
[Liu, Wei; Cai, Chongfa] Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China.
通讯机构:
[Cai, Chongfa] Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China.
语种:
英文
关键词:
Cyanophage PP;decay rate;water temperature;heat-sensitive substances;particle materials;freshwater
年:
2011
卷:
9
期:
3-4
页码:
963-966
文献类别:
WOS:Article
所属学科:
ESI学科类别:农业科学;WOS学科类别:Food Science & Technology
入藏号:
基金类别:
National water pollution control and management technology major projects [2009ZX07105-001, 2008ZX07101]
机构署名:
本校为其他机构
院系归属:
城市与环境科学学院
摘要:
The decay of virioplankton is one of the most important process of virioplankton population dynamics. Besides the solar-ultraviolet radiation b, other factors can also lead to the decay of virioplankton. Experiment was carried out to study the decay rate of cyanophage PP caused by some environmental factors: non-UVB radiation in sunlight, particle materials, heat-sensitive substances and water temperature. The results indicated that the decay rate of cyanophage PP by the non-UVB radiation part of sunlight at noon was 3.8%.h(-1), however, the decay rate was swiftly attenuated to less than 1.0%-h(-1) with the attenuation of sunlight intensity; in dark condition, the decay rate of cyanophage PP in field sample was steadily 2.5%-h(-1), among which 2.01%-h(-1) contributed to particle materials (in more turbid waters, the number would be as high as 15.0%-h(-1)), and 2.1 %-h(-1) contributed to heat-sensitive substances. The dark decay rate in field sample varied at different temperatures, it was 8.75%-h(-1) at 35 degrees C which was 2.5 times greater than the decay rate at 28 degrees C. Our results suggest that heat-sensitive particle substances are the most important contributing factor to viral dark decay in high eutrophic freshwater and also point to the significance of water temperature in influencing the dark decay rate.
参考文献:
Bongiorni L, 2005, APPL ENVIRON MICROB, V71, P6644, DOI 10.1128/AEM.71.11.644-6650.2005
Cheng K, 2007, AQUAT MICROB ECOL, V48, P13, DOI 10.3354/ame048013
Corinaldesi C, 2010, FEMS MICROBIOL ECOL, V72, P208, DOI 10.1111/j.1574-6941.2010.00840.x
ELEY JH, 1971, PLANT CELL PHYSIOL, V12, P311
FOX JA, 1976, VIROLOGY, V73, P557, DOI 10.1016/0042-6822(76)90420-7

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