Chaetoceros laevisporus, Li & Boonprakob & Gaonkar & Kooistra & Lange & Hernández-Becerril & Chen & Moestrup & Lundholm, 2017

Li, Yang, Boonprakob, Atchaneey, Gaonkar, Chetan C., Kooistra, Wiebe H. C. F., Lange, Carina B., Hernández-Becerril, David, Chen, Zuoyi, Moestrup, Øjvind & Lundholm, Nina, 2017, Diversity in the Globally Distributed Diatom Genus Chaetoceros (Bacillariophyceae): Three New Species from Warm-Temperate Waters, PLoS ONE (e 0168887) 12 (1), pp. 1-38 : 34

publication ID

https://doi.org/ 10.1371/journal.pone.0168887

DOI

https://doi.org/10.5281/zenodo.12630684

persistent identifier

https://treatment.plazi.org/id/E87C87F4-8345-FFFA-FDE6-7F43A921FB53

treatment provided by

Felipe

scientific name

Chaetoceros laevisporus
status

 

Chaetoceros laevisporus

This is the only species in the C. lorenzianus complex with smooth resting spores without processes, and in the phylogenetic tree the strains form a separate branch. The smooth resting spore ( Fig 10A and 10B View Fig 10 ) differs markedly from the spores of C. lorenzianus , C. mitra and C. elegans with their dichotomously-branching extensions. Furthermore the apertures are oval-peanut shaped in C. laevisporus ( Figs 8A, 8B, 8D View Fig 8 and 10A View Fig 10 ), thus differing from most other taxa in the complex. Seta poroid density is intermediate, 13.8± 1.9 in 10 μm as in C. mannaii ( Table 1 View Table 1 ), but different from all the other taxa. Poroid size on the setae was assessed to be c. 0.6 μm, slightly less than in C. mannaii , but the poroids were still visible in LM ( Fig 8C View Fig 8 ).

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