Bioprospecting of Blue Diatom Haslea sp. in the Canary Islands

Sulastri Arsad*1, Lutfiana Aprilianita Sari2, Emilio Soler Onis3, Juan F. Zabala3, Yenny Risjani1, Jean-Luc Mouget4

 

1 Faculty of Fisheries and Marine Science, Universitas Brawijaya, Jl. Veteran Malang 65145 Indonesia

2 Faculty of Fisheries and Marine Science, Universitas Airlangga, Surabaya Indonesia

3 Banco Español De Algas (BEA), Muelle de Taliarte-Telde Fundación Parque Científico Tecnológico Universidad de Las Palmas de Gran Canaria Spain

4 Mer, Molecules, Santé, Le Mans Université, Avenue Olivier Messiaen 72085 Le Mans France

 

Corresponding author*: sulastriarsad @ ub.ac.id

 

Abstract

Pennate diatom Haslea sp. was discovered in several regions. This species becomes unique because of specific pigment called marennine. The extended expand of this type of diatom is getting important during the various Haslea was identified and characterized morphologically and genetically. The aim of this study was to collect blue diatom Haslea from natural environment in the Canary Islands such as Gran Canaria and El Hierro, to isolate the strain and possibility of cultivation work. Survey method was used during the exploration. Samples were collected from macroalgae such as Padina and Lobophora. Handling process after sampling process was directly did in Laboratory. Afterward, it continued by observation and following with isolation activity. The strain maintenance kept in room culture with photoperiod 16:8 (light: dark), light intensity 61.8 µmol photons m-2 s-1, room temperature was 24°C, and using F/2 medium or filtered seawater as media. Morphological observation was conducted by using Scanning Electron Microscope. The result showed that several blue diatoms found in Gran Canaria island. However, it needs the continuity of molecular studying report to specify the species.

Keywords: Diatom Haslea, Sampling, Canary Islands