Microalgal Biodiversity at Antarctica 2001/04

Occurrence
Dernière version Publié par Australian Antarctic Data Centre le oct. 2, 2018 Australian Antarctic Data Centre
Date de publication:
2 octobre 2018
Licence:
CC-BY 4.0

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Description

A collection of about 20 isolates of Antarctic microalgae from the Windmill Islands region, around Casey Station has been established in the University of Malaya Algae Culture Collection (UMACC). The Antarctic microalgae in the collection includes Chlamydomonas, Chlorella, Stichococcus, Navicula. Ulothrix and Chlorosarcina. Comparative studies on the effect of global warming and UVR stress on these Antarctic microalgae and the tropical collection are being conducted. From the abstract of one of the referenced papers: The growth, biochemical composition and fatty acid profiles of six Antarctic microalgae cultured at different temperatures, ranging from 4, 6, 9, 14, 20 to 30 degrees C, were compared. The algae were isolated from seawater, freshwater, soil and snow samples collected during our recent expeditions to Casey, Antarctica, and are currently deposited in the University of Malaya Algae Culture Collection (UMACC). The algae chosen for the study were Chlamydomonas UMACC 229, Chlorella UMACC 234, Chlorella UMACC 237, Klebsormidium UMACC 227, Navicula UMAC 231 and Stichococcus UMACC 238. All the isolates could grow at temperatures up to 20 degrees C; three isolates, namely Navicula UMACC 231 and the two Chlorella isolates (UMACC 234 and UMACC 237) grew even at 30 degrees C. Both Chlorella UMACC 234 and Stichococcus UMAC 238 had broad optimal temperatures for growth, ranging from 6 to 20 degrees C (growth rate = 0.19 - 0.22 per day) and 4 to 14 degrees C (growth rate = 0.13 - 0.16 per day), respectively. In constrast, optimal growth temperatures for Navicula UMACC 231 and Chlamydomonas UMACC 229 were 4 degrees C (growth rate = 0.34 per day) and 6 to 9 degrees C (growth rate = 0.39 - 0.40 per day), respectively. The protein content of the Antarctic algae was markedly affected by culture temperature. All except Navicula UMACC 231 and Stichococcus UMACC contained higher amount of proteins when grown at low temperatures (6-9 degrees C). The percentage of PUFA, especially 20:5 in Navicula UMACC 231 decreased with increasing culture temperature. However, the percentages of unsaturated fatty acids did not show consistent trend with culture temperature for the other algae studied. There are three spreadsheets available in the download file. ASAC_2590 - provides detail about where each species of algae was collected from. ASAC_2590a - provides data from Teoh Ming-Li et al (2004) ASAC_2590b - provides data from Wong Chiew-Yen et al (2004) The fields in this dataset are: Isolate Culture Collection number Origin (Location) Fatty acids saturated fatty acids polyunsaturated fatty acids monounsaturated fatty acids Temperature growth rate PAR UVBQuality: The dates provided in temporal coverage are approximate only. 2018-08-30 - The original files was reformatted to fit OBIS/GBFI/IPT Biodiversity.AQ tracking standards, and a new datasheet "MicroalgaeDiversity_2001_04.csv" was created. The new dataset contains datasetID, catalogNumber, occurrenceID, eventDate, verbatimLatitude, verbatimLongitude, decimalLatitude, decimalLongitude, locationID, locality, institutionCode, country, countryCode, identificationQualifier, occurrenceStatus, basisOfRecord, and associatedReferences. The lowest taxonomical rank of the species identified that could be determined is provided, after matched in WoRMS (World Register of Marine Species).

Enregistrements de données

Les données de cette ressource occurrence ont été publiées sous forme dune Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant quensemble dun ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 15 enregistrements.

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

Le tableau ci-dessous naffiche que les versions publiées de la ressource accessibles publiquement.

Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Chu Wan-Loy and Phang Siew-Moi (2004, updated 2018) Microalgal Biodiversity at Antarctica

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Australian Antarctic Data Centre. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède lUUID GBIF suivante : 4e302fbd-7437-4f2a-ae19-2525f090a4e7.  Australian Antarctic Data Centre publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec lapprobation du Atlas of Living Australia.

Mots-clé

Occurrence

Données externes

Les données de la ressource sont disponibles dans dautres formats

Point of truth metadata record https://data.aad.gov.au/metadata/records/ASAC_2590 ASCII DIF 9.9

Contacts

SIEW MOI PHANG
  • Personne De Contact
  • INVESTIGATOR
  • Institute of Biological Sciences Faculty of Science, and Institute of Ocean and Earth Sciences University of Malaya
50603 Kuala Lumpur
MY
SIEW MOI PHANG
  • Personne De Contact
  • DIF AUTHOR
  • Institute of Biological Sciences Faculty of Science, and Institute of Ocean and Earth Sciences University of Malaya
50603 Kuala Lumpur
MY
SIEW MOI PHANG
  • Personne De Contact
  • TECHNICAL CONTACT
  • Institute of Biological Sciences Faculty of Science, and Institute of Ocean and Earth Sciences University of Malaya
50603 Kuala Lumpur
MY
CHU WAN-LOY
  • Personne De Contact
  • TECHNICAL CONTACT
  • Postgraduate Studies University of Malaya Plaza Komanwel, Bukit, Jalil International Medical University
57000 Kuala Lumpur
MY
DATA OFFICER AADC
  • Distributeur
  • DATA CENTER CONTACT
Australian Antarctic Data Centre, Australia
  • Australian Antarctic Division 203 Channel Highway
7050 Kingston
Tasmania
AU

Couverture géographique

CONTINENT > ANTARCTICA > Windmill Islands GEOGRAPHIC REGION > POLAR

Enveloppe géographique Sud Ouest [-66,53, 110,36], Nord Est [-66,17, 110,68]

Couverture taxonomique

Species of microalgae were isolated for further studies

Genus Ulothrix, Klebsormidium, Chlorococcum, Chlamydomonas, Macrochloris, Chlorella, Stichococcus, Chlorella, Raphidonema, Chlorosarcina, Prasiola, Navicula, Pinnularia, Stauroneis, Oscillatoria

Couverture temporelle

Date de début / Date de fin 2001-01-31 / 2004-02-27

Citations bibliographiques

  1. Teoh Ming-Li, Chu Wan-Loy, Harvey Marchant and Phang Siew-Moi (2004) Influence of culture temperature on the growth, biochemical composition and fatty acid profiles of six Antarctic microalgae. Journal of Applied Phycology. 16, 1-10
  2. Wong Chiew-Yen, Chu Wan-Loy, Harvey Marchant and Phang Siew-Moi (2004) Growth response, biochemical composition and fatty acid profiles of four Antarctic microalgae subjected to UV radiation stress. Malaysian Journal of Science. 23(2), 103-118

Métadonnées additionnelles