A Short Review on the Halotolerant Green Microalga Asteromonas gracilis Artari with Emphasis on Its Uses

Main Article Content

George N. Hotos

Abstract

The halotolerant green single-celled Asteromonas gracilis isolated from the hypersaline saltern ponds of Messolonghi, Greece, was kept in laboratory cultures, grown effectively at various salinities and used for feeding rotifers, protozoa, copepods and Artemia sp. In all feeding trials all filter feeders accepted A. gracilis and grew. Additionally, as of its morphology, movement and culture reliability Asteromonas is a valuable teaching tool for phycological studies, supreme to the other usual microalgae for this purpose. The exploitation potential of A. gracilis in many sectors awaits research results, as literature data are scarce.

Keywords:
Halotolerance, green algae, Asteromonas gracilis.

Article Details

How to Cite
Hotos, G. (2019). A Short Review on the Halotolerant Green Microalga Asteromonas gracilis Artari with Emphasis on Its Uses. Asian Journal of Fisheries and Aquatic Research, 4(3), 1-8. Retrieved from http://journalajfar.com/index.php/AJFAR/article/view/30054
Section
Review Article

References

Asteromonas gracilis is an excellent all-purpose natural food for all kind of filter feeding organisms.

The culture of A. gracilis is easy as cultures are not collapsed easily and remain viable for long time ready to rejuvenate due to its dormant cysts that have been accumulated on the bottom of old culture's vessel.

A. gracilis can be an excellent teaching tool in phycological courses because of its big vividly green colored cell, slow moving, rotating and vibrating that result in a fascinating easily observable microscopy material.

Along with Dunaliella sp. comprises one of few microalgae, which are representatives for studies in hypersalinity.
ACKNOWLEDGEMENTS

The author thanks heartily Despina Avramidou, ichthyologist technical staff of the laboratory for her restless efforts in helping to collect the specimens and for taking care of the laboratory cultures.
COMPETING INTERESTS

Author has declared that no competing interests exist.
REFERENCES

Artari A. Zur physiologie der chlamydomonaden. Jahrbüautcher füautr Wissenschlaftliche Botanik. 1913;52:410-416.

Peterfi LS, Manton I. Observations with the electron microscope on Asteromonas gracilis Artari Emend. [Stephanoptera gracilis (Artari) Wisl.], with some comparative observations on Dunaliella sp. British Phycology Bulletin. 1968;3(3):423-440.

Ben-Amotz A, Grunwald T. Osmoregulation in the Halotolerant Alga Asteromonas gracilis. Plant Physiology. 1981;67:613-616.

Fawzy MA, Hifney AF, Issa AA, Adam SM. Asteromonas gracilis (Prasinophyceae) as a model for production of β-carotene and total lipids. Journal for Advanced Research Applied Sciences. 2014;1(1):51-62.

Fawzy MA. Fatty acid characterization and biodiesel production by the marine Microalga Asteromonas gracilis: Statistical optimization of medium for biomass and lipid enhancement. Marine Biotechnology. 2017;19(3):219-231.
DOI: 10.1007/s10126-017-9743-y

Hotos G, Avramidou D. Growth study of the one-celled halophilous alga Asteromonas gracilis (Chlorophyta) in mass culture condition using different salinities, photoperiod and without addition of vitamins (in Greek with English summary). Geotechnical Scientific Issues of the Geotechnic Chamber of Greece. 1995;6(2):37-45.

Hotos GN. Selectivity of the rotifer Brachionus plicatilis fed mixtures of algal species with various cell volumes and cell densities. Aquaculture Research. 2002;33 (12):949-957.

Hotos GN. Growth, filtration and ingestion rate of the rotifer Brachionus plicatilis fed with large (Asteromonas gracilis) and small (Chlorella sp.) celled algal species. Aquaculture Research. 2003;34(10):793-802.

Gorbunova NP. Sexual process in Asteromonas gracilis Artari. Bot. Zh. SSSR. 1961;46:993-998.