Number of the records: 1

Kinetics of glucose stimulatory effect on silica deposition and growth of natural populations of Fragilaria crotonensis

SYSNO ASEP	0360257
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Kinetics of glucose stimulatory effect on silica deposition and growth of natural populations of Fragilaria crotonensis
Author(s)	Znachor, Petr (BC-A)_{RID, ORCID} Nedoma, Jiří (BC-A)_{RID, ORCID} Rychtecký, Pavel (BC-A)_{RID, ORCID}
Source Title	Phycological Research - ISSN 1322-0829 Roč. 59, č. 2 (2011), s. 123-128
Number of pages	6 s.
Language	eng - English
Country	JP - Japan
Keywords	Fragilaria crotonensis ; glucose ; PDMPO ; phytoplankton
Subject RIV	DA - Hydrology ; Limnology
R&D Projects	GP206/07/P407 GA ČR - Czech Science Foundation (CSF)
	GA206/09/0309 GA ČR - Czech Science Foundation (CSF)
	GA206/08/0015 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z60170517 - HBU-Z, BC-A (2005-2011)
UT WOS	000288868000007
DOI	10.1111/j.1440-1835.2011.00609.x
Annotation	In 2008–2009, we performed in situ experiments examining the effect of glucose addition on silica deposition kinetics and growth rates of Fragilaria crotonensis in the eutrophic Římov Reservoir (Czech Republic). Silica deposition kinetics was measured at 4-h intervals over a 24-h incubation with PDMPO [2-(4-pyridyl)-5{[4-dimethylaminoethylaminocarbamyl)- methoxy] phenyl}oxazole] fluorescence probe. A significant stimulatory effect of glucose supplemented at the concentration of 10-4 M on Fragilaria silification was observed at 20 and 24 h. Fragilaria growth rates almost doubled upon glucose enrichment compared with the untreated control at 24 h. In addition, we conducted a dose-response experiment testing the glucose additions from 10-8 to 10-3 M in a 24-h incubation. Glucose stimulated both Fragilaria silification and growth at concentrations >10–7 M, which might occasionally occur in a reservoir as a result of accidental contamination of water by organic pollution.
Workplace	Biology Centre (since 2006)
Contact	Dana Hypšová, eje@eje.cz, Tel.: 387 775 214
Year of Publishing	2012

Number of the records: 1