Zhang, B., Chen, G., Wang, G. et al. Identification of two Skeletonema costatum-like diatoms by fluorescence in situ hybridization., Chin. J. Ocean. Limnol. 28, 310–314 (2010). https://doi.org/10.1007/s00343-010-9268-y
DOI:
Zhang, B., Chen, G., Wang, G. et al. Identification of two Skeletonema costatum-like diatoms by fluorescence in situ hybridization., Chin. J. Ocean. Limnol. 28, 310–314 (2010). https://doi.org/10.1007/s00343-010-9268-yDOI:
Identification of two Skeletonema costatum-like diatoms by fluorescence in situ hybridization
摘要
Abstract
A harmful algae bloom (HAB) is a dense aggregation of algae in a marine or aquatic environment that can result in significant environmental problems. To forecast the occurrence of HAB
development of a rapid and precise detection method is urgently required. In this study
two Skeletonema costatum-like diatoms (SK-1 and SK-2)
were identified morphologically under a light microscope
and detected using fluorescent in situ hybridization (FISH). Strain SK-1 was isolated from a frequently HAB affected area of the East China Sea
and strain SK-2 from an aquatic farm in Qingdao
China. Fluorescent DNA probes were designed that were complementary to the ITS sequence (including 5.8S rDNA) of strain SK-1. After hybridization
strong green fluorescence was observed in cells of strain SK-1 under an epifluorescence microscope; however
no such fluorescence was observed with strain SK-2
which indicates that probes hybridized only the DNA of the target strain
SK-1
in species-specific manner
and that the two strains do not belong to a same species. This finding was confirmed by ITS sequence analysis. The FISH technique used in this study was sensitive
simple
and rapid
and is a promising tool for detecting target HAB species in natural environments.
关键词
Keywords
references
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