GREAT AT SMALL THINGS

BCCM/DCG Diatoms Collection

The BCCM/DCG public collection is the only culture collection worldwide specialized in diatoms, the most species-rich and ecologically important algal group. All strains are publicly available for the scientific community and are distributed as research or reference material to scientific institutions and companies.

 

Embedding

The BCCM/DCG public collection is hosted by the Laboratory for Protistology & Aquatic Ecology (Gent University, Belgium), internationally renowned for its research on diatom taxonomy, evolution, ecology and life cycles, for which routinely diatom cultures are established and experimentally manipulated. The interaction between the host laboratory and the culture collection offers a large added value to the collection as it ensures a detailed characterization of the strains and the necessary expertise for long-term storage of diatom strains and species. This has resulted in a unique collection of model diatoms for both fundamental and applied research.

The host laboratory makes intensive use of the diatom strains in the culture collection for its research projects, and contributes to the collection by depositing well-characterized strains interesting for future research and applications. The following research topics are addressed using a range of different approaches, including morphology, DNA sequences, transcriptome and genome studies, ecophysiological studies, crossing experiments, pedigree analyses,... :

  • Population genetics
  • Speciation and (cryptic) species diversity
  • Niche divergence and evolution
  • Competition and facilitation
  • Molecular basis of the diatom life cycle
  • Species screening and growth optimization for aquaculture

 

Scope of the biological material

The PAE lab maintains an extensive diatom culture collection, which was initiated in 2000 and developed by Dr. V. Chepurnov (former PAE member). The collection currently consists of 293 strains belonging to 24 genera. All strains are living monoclonal cultures grown in liquid culture media (WC medium for freshwater diatoms, f/2 for marine, see Mann DG & Chepurnov VA, 2004, Nova Hedwigia 79:237-291). 62 of these strains are also cryopreserved.

The selection of strains for the culture collection is based on their ease of use for experimental manipulation. As most diatoms have an obligatory sexual stage in their life cycle, knowledge of the life-cycle is vital for the long-term maintenance of diatom cultures. Therefore, information on mating system, cardinal points in the life cycle and valve measurements is present for each of the strains, making the PAE diatom culture collection unique in its kind.

The purpose of the diatom culture collection is to make diatom strains available for both academic and industrial partners to conduct fundamental and applied research. As such, the strains/taxa are or have been intensively used in the PAE lab and elsewhere for diatom genomics research, cell-and life-cycle investigations, studies of ecological interactions and research on the population genetics, evolution and diversity of diatoms.

 

Services

Deposit of strains for public access

The BCCM/DCG public collection of diatoms has been operational since the 1st of February 2011.
More information on how to deposit your material can be found here.

 

Distribution of strains

Strains of the public collection are accessible under the conditions of the BCCM Material Transfer Agreement (MTA). For more information on ordering microbial resources click here.
See also the price list

Consult the BCCM/DCG catalogue to search the strains you require.

Accession, control, preservation, storage and supply of diatoms and related information in the frame of public deposits are ISO 9001:2008 certified.

 

A project by Uchrony