Can I read Unsuspected intraspecific variability in the toxin production, growth and morphology of the dinoflagellate Alexandrium pacificum R.W. Litaker (Group IV) blooming in a South Western Mediterranean marine ecosystem, Annaba Bay (Algeria) on EtoBox?

Unsuspected intraspecific variability in the toxin production, growth and morphology of the dinoflagellate Alexandrium pacificum R.W. Litaker (Group IV) blooming in a South Western Mediterranean marine ecosystem, Annaba Bay (Algeria) by Imen Hadjadji; Mohamed Laabir; Hocine Frihi; Yves Collos; Zhao Jun Shao; Patrick Berrebi; Eric Abadie; Zouher Amzil; Nicolas Chomérat; Jean Luc Rolland; Fabien Rieuvilleneuve; Estelle Masseret is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Unsuspected intraspecific variability in the toxin production, growth and morphology of the dinoflagellate Alexandrium pacificum R.W. Litaker (Group IV) blooming in a South Western Mediterranean marine ecosystem, Annaba Bay (Algeria) about?

Physiological plasticity gives HABs species the ability to respond to variations in the surrounding environment. The aim of this study was to examine morphological and physiological variability in Alexandrium pacificum R.W. Litaker (Group IV) (former Alexandrium catenella) blooming in Annaba bay, Algeria. Monoclonal cultures of up to 30 strains of this neurotoxic dinoflagellate were established by the germination of single resting cysts from the surface sediment of this southern Mediterranean marine ecosystem. Ribotyping confirmed formally for the first time that A. pacificum is developing in Eastern Algerian waters. Toxin analyses of A. pacificum strains revealed substantial intraspecific variability in both the profile and toxin amount. However, the toxin profile of most strains is characterized by the dominance of GTX6 (up to 96 mol %) which is the less toxic paralytic molecule. The toxin concentrations in the isolated strains varied widely between 3.8 and 30.82 fmol cell. We observed an important variation in the growth rate of the studied A. pacificum strains with values ranging from 0.05 to 0.33 d. The lag time of the studied strains varied widely and ranged from 4 to 20 days

Who reads Unsuspected intraspecific variability in the toxin production, growth and morphology of the dinoflagellate Alexandrium pacificum R.W. Litaker (Group IV) blooming in a South Western Mediterranean marine ecosystem, Annaba Bay (Algeria)?

Author

Imen Hadjadji; Mohamed Laabir; Hocine Frihi; Yves Collos; Zhao Jun Shao; Patrick Berrebi; Eric Abadie; Zouher Amzil; Nicolas Chomérat; Jean Luc Rolland; Fabien Rieuvilleneuve; Estelle Masseret

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0041-0101)

Published

2020

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)