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Dinâmica das microalgas nocivas na lagoa de Bizerte

Dinâmica das microalgas nocivas na lagoa de Bizerte

Donia Bouchouicha

142,70 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Biologia, ciencias de la vida
ISBN:
9786209595592
142,70 €
IVA incluido
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Durante este estudo, oito estirpes de diatomáceas, pertencentes ao género Pseudo-nitzschia, foram isoladas do meio natural das estações de estudo em diferentes meses entre 2008 e 2009. Estas estirpes foram submetidas a uma análise aprofundada da sua citologia e da ultraestrutura das suas frústulas através de microscopia eletrónica (de varrimento e de transmissão). Além disso, os seus genomas foram sequenciados ao nível das unidades LSU e SSU, aplicando o método da biologia molecular. As descrições morfométricas e as análises filogenéticas relativas às oito estirpes revelaram que não se tratava do género Pseudo-nitzschia, mas sim do género Nitzschia. Além disso, as características morfológicas e moleculares identificadas nas oito estirpes não eram idênticas às de nenhuma espécie de Nitzschia já descrita na literatura nem às Nitzschia registadas no Genbank. Consequentemente, foi possível declarar que se tratava de uma nova espécie, que foi denominada Nitzschia bizertensis sp. nov. Bouchouicha, Lundholm, Sakka-Hlaili, Hadj-Mabrouk.

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