First report of the potentially toxic marine diatom Pseudo‐nitzschia simulans (Bacillariophyceae) from the East Australian Current

• DOI: 10.1111/pre.12421
• Publication Date: 2020-03-25T04:25:06Z
• Authors: Penelope A. Ajani; Hong Chang Lim; Arjun Verma; Malwenn Lassudrie; Katie McBean; Martina A. Doblin; Shauna A. Murray
• Keywords: Domoic Acid; Gigantea

SUMMARY Certain species of the marine diatom genus Pseudo‐nitzschia are responsible for production domoic acid (DA), a neurotoxin that can bioaccumulate in food chain and cause amnesic shellfish poisoning (ASP) animals humans. This study extends our knowledge by reporting on first observation potentially toxic simulans from this region. One clonal strain P. was isolated East Australian Current characterized using light transmission electron microscopy, phylogenetic analyses based regions internal transcribed spacer (ITS) D1–D3 region large subunit (LSU) nuclear‐encoded ribosomal deoxyribonucleic (rDNA), as well examined DA measured liquid chromatography–mass spectrometry. Although non‐toxic under defined growth conditions, results unambiguously confirmed isolate is – report Southern Hemisphere.