Spatial and Seasonal Variations of Harmful Benthic Dinoflagellates in the Coastal Waters of Mauritius

Neermul, P.; Dhunnoo, G.; Emrith, V.; Fakoo, M.; Jeenally, N.; Bhantooa, R.; Elaheebocus, K.

doi:10.1007/978-981-15-8506-7_22

Cited by 2 publications

(1 citation statement)

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“…In Mauritius, investigations on Prorocentrum species have primarily been as part of a national monitoring program for unraveling potentially harmful benthic dinoflagellates [25][26][27]. Prorocentrum species are recognized to be morphologically similar with apparent plasticity [20,21,28,29], and their identification has been rather difficult based on morphology alone.…”

Section: Discussionmentioning

confidence: 99%

Ribosomal DNA Sequence-Based Taxonomy and Antimicrobial Activity of Prorocentrum spp. (Dinophyceae) from Mauritius Coastal Waters, South-West Indian Ocean

et al. 2023

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Microalgae are unicellular organisms and commonly present in the euphotic zone of marine ecosystems. From the western coast of Mauritius, three strains of Prorocentrum species were isolated from macrophytes and cultured under standard laboratory conditions. Morphologies were examined by light, fluorescence, and scanning electron microscopy, and phylogenetic analyses were based on partial large subunit LSU rDNA (D1-D2) and ITS1-5.8S-ITS2 (ITS) regions. Three Prorocentrum species, including the P. fukuyoi complex, P. rhathymum, and P. lima complex, were identified. The antimicrobial activities were assayed against potential human pathogenic bacterial strains. The highest zone of inhibition was recorded for intracellular and extracellular protein extracts of Prorocentrum rhathymum against Vibrio parahaemolyticus. The polysaccharide extracts of the Prorocentrum fukuyoi complex had a higher zone of inhibition (24 ± 0.4 mm) against MRSA at a minimum concentration of 0.625 μg/mL. The extracts from the three Prorocentrum species had different levels of activity against the pathogens used, and this can be of scientific interest in the search for antibiotics from natural marine sources.

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