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Phytochemistry

Title:		PUFAs and PUAs production in three benthic diatoms from the northern Adriatic Sea
Author(s):		Pezzolesi L; Pichierri S; Samori C; Totti C; Pistocchi R;
Address:		"Dipartimento di Scienze Biologiche, Geologiche e Ambientali - Universita di Bologna, via Sant'Alberto 163, 48123, Ravenna, Italy. Electronic address: laura.pezzolesi@unibo.it. Dipartimento di Scienze della Vita e dell'Ambiente - Universita Politecnica delle Marche, via Brecce Bianche, 60131, Ancona, Italy. Dipartimento di Chimica 'Giacomo Ciamician' - Universita di Bologna, via Selmi 2, 40126, Bologna, Italy. Dipartimento di Scienze Biologiche, Geologiche e Ambientali - Universita di Bologna, via Sant'Alberto 163, 48123, Ravenna, Italy"
Journal Title:		Phytochemistry
Year:		2017
Volume:		20170708
Issue:
Page Number:		85 - 91
DOI:		10.1016/j.phytochem.2017.06.018
ISSN/ISBN:		1873-3700 (Electronic) 0031-9422 (Linking)
Abstract:		"The production of polyunsaturated aldehydes (PUAs) has been reported by many planktonic diatoms, where they have been implicated in deleterious effects on copepod reproduction and growth of closeby microbes or suggested as infochemicals in shaping plankton interactions. This study investigates the production of PUAs by diatoms commonly occurring in the microphytobenthic communities in temperate regions: Tabularia affinis, Proschkinia complanatoides and Navicula sp. Results highlight the production of PUAs by the three benthic diatoms during stationary and decline phases, with intracellular concentrations from 1.8 to 154.4 fmol cell(-1), which are within the range observed for planktonic species. The existence of a large family of PUAs, including some with four unsaturations, such as decatetraenal, undecatetraenal and tridecatetraenal, was observed. Since particulate and dissolved PUAs were positively correlated, together with cell lysis, equivalent concentrations may be released during late growth stages, which may affect benthic invertebrates grazing on them and other microalgae"
Keywords:		"Aldehydes/*chemistry/*pharmacology Diatoms/*chemistry Fatty Acids, Unsaturated/chemistry/*metabolism Gas Chromatography-Mass Spectrometry Molecular Structure Oceans and Seas Benthic diatoms Fatty acids Gc-ms Navicula sp.Naviculaceae Polyunsaturated aldeh;"
Notes:		"MedlinePezzolesi, Laura Pichierri, Salvatore Samori, Chiara Totti, Cecilia Pistocchi, Rossella eng England 2017/07/12 Phytochemistry. 2017 Oct; 142:85-91. doi: 10.1016/j.phytochem.2017.06.018. Epub 2017 Jul 8"