Development of a quantitative PCR for detection and quantification of Prorocentrum donghaiense

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	Development of a quantitative PCR for detection and quantification of Prorocentrum donghaiense
	Zhang, Chun Yun 1,2; Chen, Guo Fu 1,2; Zhou, Jin 3; Wang, Yuan Yuan 1; Lu, Dou Ding 4
刊名	JOURNAL OF APPLIED PHYCOLOGY
	2016-06-01
卷号	28 期号:3 页码:1683-1693
关键词	Prorocentrum donghaiense LSUrDNA Quantitative PCR Detection Dinoflagellate
英文摘要	Prorocentrum donghaiense is a dinoflagellate with a high frequency of bloom formation in the East China Sea. These blooms harm coastal ecosystems, marine fisheries, aquatic environments, and public health. Therefore, new and rapid methods that accurately process and specifically detect this alga are crucial to facilitate long-term monitoring or to provide timely warnings of P. donghaiense blooms. We report the development of a quantitative real-time PCR (qPCR) method to identify and detect P. donghaiense. The partial large subunit (LSU) rDNA D1-D2 was cloned and sequenced to design specific amplification primers. The specificity of the primers was tested using regular PCR and fluorescent PCR against a wide range of microalgae widely distributed along the Chinese coast. The qPCR detection protocol was based on two standard curves. Both curves were constructed from standard samples of tenfold serially diluted solutions of the recombinant plasmid containing the LSU D1-D2 fragment and crude DNA extracts with a known number of target cells. A quantitative relationship between the cell numbers and their corresponding plasmid copy numbers was established; this relationship can be used to determine the target cell number of unknown samples in combination with a standard curve that was generated from tenfold-diluted plasmid solutions and the determined C (t) value of target DNA. The effectiveness of the developed protocol was tested with a series of simulated and field samples. The developed qPCR had a detection sensitivity of up to 3.45 cells. The performance of qPCR was not affected by nontarget DNA. The detection test with a series of samples fixed for 40 days showed that qPCR is competent for long-term monitoring programs that require the quantitative analysis of fixative-preserved samples. qPCR can identify the target cells in the field samples within 3-4 h. No significant differences in the quantitative results of the target cells were observed between qPCR and light microscopy. Overall, the established qPCR method is specific, sensitive, rapid, accurate, and promising for the field detection of P. donghaiense in natural samples.
收录类别	SCI
语种	英语
WOS记录号	WOS:000375315100024
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/131057]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Harbin Inst Technol Weihai, Sch Marine Sci & Technol, Weihai 264209, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Tsinghua Univ, Div Ocean Sci & Technol, Grad Sch Shenzhen, Shenzhen 518055, Guangdong, Peoples R China 4.SOA, Inst Oceanog 2, Hangzhou 310012, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chun Yun,Chen, Guo Fu,Zhou, Jin,et al. Development of a quantitative PCR for detection and quantification of Prorocentrum donghaiense[J]. JOURNAL OF APPLIED PHYCOLOGY,2016,28(3):1683-1693.
APA	Zhang, Chun Yun,Chen, Guo Fu,Zhou, Jin,Wang, Yuan Yuan,&Lu, Dou Ding.(2016).Development of a quantitative PCR for detection and quantification of Prorocentrum donghaiense.JOURNAL OF APPLIED PHYCOLOGY,28(3),1683-1693.
MLA	Zhang, Chun Yun,et al."Development of a quantitative PCR for detection and quantification of Prorocentrum donghaiense".JOURNAL OF APPLIED PHYCOLOGY 28.3(2016):1683-1693.