NDLI: Skeletonema cf. costatum biogenic silica production rate determinated by PDMPO method

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Skeletonema cf. costatum biogenic silica production rate determinated by PDMPO method

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Journal of Ocean University of China : Volume 16, Issue 1, February 2017

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Skeletonema cf. costatum biogenic silica production rate determinated by PDMPO method

Content Provider	Springer Nature Link
Author	Zhang, Guicheng Leng, Xiaoyun Feng, Yuanyuan Li, Xia Sun, Jun
Copyright Year	2017
Abstract	Diatoms are the only ecological phytoplankton that require silicic acid for growth. They are also the dominant contributor of ocean’s total primary productivity. Generation and circulation with silica walls, which the siliceous organisms form, is an important component of the marine biological pump. It is crucial to the study of the operational mechanisms of biological pump with different sea areas. Moreover, it is the key link to the study of global silicon cycle. This paper introduces the basic mechanism of the formation of diatom silica walls and a new way of researching silicic acid metabolism, namely the 2-(4-pyridyl)-5-((4-(2-dimethylaminoethylaminocarbamoyl)- methoxy)phenyl)oxazole (PDMPO) dyeing method. Under a fluorescence microscope after excitation with bright green fluorescence, it can combine with silicic acid to form a complex into the Si deposition within diatom cells. The advantage of this method is that it can monitor the metabolism of silicate after adding PDMPO. For experimentation and sample collection in each of the specified time points, samples were determinated through the unutilized silicic acid, silica dissoluble intracellular and Si deposition within diatom cells, not only using hot alkaline digestions method but also PDMPO dyeing method. Results showed a good linear relationship between PDMPO fluorescent value and biogenic silica concentration. It was also indicated that PDMPO had no deleterious impact on Skeletonema cf. costatum growth for 34 h and was useful for tracking newly-deposited biogenic silica in diatoms’ frustules.
Starting Page	333
Ending Page	338
Page Count	6
File Format	PDF
ISSN	16725182
Journal	Journal of Ocean University of China
Volume Number	16
Issue Number	2
e-ISSN	19935021
Language	English
Publisher	Science Press
Publisher Date	2017-03-07
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	biogenic silica PDMPO method Skeletonema cf. costatum Oceanography Meteorology
Content Type	Text
Resource Type	Article
Subject	Oceanography Ocean Engineering

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Variation of bioaccumulation ability of 2,2′,4,4′-tetrabromodiphenyl ether by marine diatom Skeletonema costatum under different N:P ratios

The inhibitory degree between Skeletonema costatum and dinoflagllate Prorocentrum donghaiense at different concentrations of phosphate and nitrate/phosphate ratios

Influence of salinity and nitrogen content on production of dimethylsulfoniopropionate (DMSP) and dimethylsulfide (DMS) by Skeletonema costatum

The burial of biogenic silica, organic carbon and organic nitrogen in the sediments of the East China Sea

Phytoplankton assemblage of Yangtze River Estuary and the adjacent east China sea in summer, 2004

Influences of external nutrient conditions on the transcript levels of a nitrate transporter gene in Skeletonema costatum

Identification of two Skeletonema costatum-like diatoms by fluorescence in situ hybridization

Developmental technique for growth rate measurement of Skeletonema costatum by photographic area method.

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Skeletonema cf. costatum biogenic silica production rate determinated by PDMPO method

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The inhibitory degree between Skeletonema costatum and dinoflagllate Prorocentrum donghaiense at different concentrations of phosphate and nitrate/phosphate ratios

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Annual variations of biogenic element contents of manila clam (Ruditapes philippinarum) bottom-cultivated in Jiaozhou Bay, China

Skeletonema cf. costatum biogenic silica production rate determinated by PDMPO method