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The Minute Alga Schizocladia ischiensis (Schizocladiophyceae, Ochrophyta) Isolated by Germling Emergence from 24 m Depth off Rhodes (Greece)

1
School of Biological Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen AB24 3UU, UK
2
Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, UK
3
HCMR Rhodes, Institute of Marine Biological Resources and Inland Waters, Hydrobiological Station of Rhodes, Cos Street, 85100 Rhodes, Greece
4
NERC National Facility for Scientific Diving, Scottish Association for Marine Science, Oban PA37 1QA, UK
5
Kobe University Research Center for Inland Seas, Rokkodai, Nadaku, Kobe 657-8501, Japan
6
Bezhin Rosko, 40 rue des pêcheurs, 29250 Santec, Brittany, France
*
Author to whom correspondence should be addressed.
Diversity 2020, 12(3), 102; https://doi.org/10.3390/d12030102
Received: 30 January 2020 / Revised: 9 March 2020 / Accepted: 10 March 2020 / Published: 14 March 2020
(This article belongs to the Special Issue Structure and Biodiversity of Rhodolith Seabeds)
Substratum collected during diving surveys of sublittoral communities off the Greek island of Rhodes (Dodecanese, South-East Aegean) in late 2015 was incubated in the laboratory. Among the emerging macroalgal germlings, there was the second-ever record and isolate of the small benthic multicellular alga Schizocladia ischiensis of the poorly known monotypic Schizocladiophyceae, the sister group of the brown algae (Phaeophyceae). Its nuclear ribosomal small subunit, Rubisco spacer (rbcL, psaA, and psbC sequences (in total 5237 bp)) were similar to those of the only previous isolate of the species from Ischia, western Mediterranean. Our new strain formed branched upright thalli attached to the substratum by an amorphous substance secreted at the bottom of the basal cell. It is possible that S. ischiensis is a common member of the infralittoral and circalittoral communities in the Mediterranean and generally overlooked because of its minute size. Germling emergence appears to represent the method of choice to reveal benthic algae of this small size. View Full-Text
Keywords: macroalgae; molecular-assisted identification; phytobenthos macroalgae; molecular-assisted identification; phytobenthos
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Rizouli, A.; Küpper, F.C.; Louizidou, P.; Mogg, A.O.M.; Azzopardi, E.; Sayer, M.D.J.; Kawai, H.; Hanyuda, T.; Peters, A.F. The Minute Alga Schizocladia ischiensis (Schizocladiophyceae, Ochrophyta) Isolated by Germling Emergence from 24 m Depth off Rhodes (Greece). Diversity 2020, 12, 102.

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