Intermediate: Heterocystous Cyanophyta Course Information

Intermediate: Heterocystous Cyanophyta

Approach of this course

Due to a recent review of the cyanobacterial taxonomic scheme, these courses are being grouped by their basic morphology rather than organised by family or order. This approach is particularly useful because it allows learning the taxa along side other similar-looking taxa, assisting in building skills in observation and differentiation.

Who is it for?

This is an INTERMEDIATE  level course and is suitable for people who have undertaken the FOUNDATION series of courses and those who have previously received some training. The course is presented by Lindsay Hunt, a microbiologist and biochemist specialising in phycology and technical trainer with over 25 years of experience in brightfield and phase contrast microscopy.

What will I learn in this course?

The course introduces the heterocystous filamentous taxa that all reside within the order Nostocales, commonly found in fresh, brackish and estuarine environments within Australia. They are cosmopolitan in distribution and are also commonly found around the globe, and you are advised to check regional resources for occurrence in your area.  These taxa are all filamentous and produce heterocytes and akinetes.

As with all these identification courses, there is an emphasis on the development of good habits and core skills in the identification of taxa. The emphasis should always be on seeing the morphological characteristics and putting them into the context of the sample and the environment it represents.

None of the taxa in this course are currently considered potentially toxic in Australia. An intermediate course on identifying potentially toxic cyanophytes can be found in our course catalogue.

Contents

  • A downloadable textbook with 64 pages of background information and a taxonomic guide
  • 45 minutes of video content to complement the text

Benefits

  • Build confidence in skills in identification
  • Presented from a routine analysis perspective using preserved materials
  • Self-paced learning
  • Email learning support
  • Certificate of completion and course outline for inclusion in training records

Course Outline

Module 1: Meet Your Trainer..., Course Introduction & Overview

Course Information, Downloads & Outline

Course Overview: Introduction to Heterocystous Cyanophyta

  • Overview of heterocystous cyanobacteria features used in identification
  • Factors influencing the presentation of populations
  • Prevalence of mixed blooms
Module 2: Dolichospermum

Genus Overview

  • Presence, prevalence, and behaviour in blooms
  • Trichome forms, specialised and vegetative cells
  • Similarities to other taxa

Taxa

  • Dolichospermum crassum
  • Dolichospermum spiroides
  • Dolichospermum perturbatum
  • Dolichospermum flos-aquae
  • Dolichospermum helicoideum
  • Dolichospermum planctonicum
  • Dolichospermum smithii
  • Dolichospermum brachiatum
Module 3: Sphaerospermopsis

Genus Overview

  • Filament forms and basic differences
  • Key morphological characteristics
  • Distribution within Australia

Taxa

  • Sphaerospermopsis aphanizomenoides
  • Sphaerospermopsis reniformis
  • Sphaerospermopsis eucompacta
Module 4: Aphanizomenon

Genus Overview

  • Distribution and presentation
  • Similarity to other taxa
  • Mophology and key features
  • Distribution

Taxa

  • Aphanizomenon gracile 
Module 5: Cylindrospermum

Genus Overview

  • Distribution and presentation
  • Similarity to other taxa
  • Mophology and key features
  • Distribution

Taxa

  • Cylindrospermum spp.
Module 6: Anabaena

Genus Overview

  • Classification history
  • Prevalence in the water column and environments
  • Morphology and key features
  • Distribution

Taxa

  • Anabaena inaequalis
  • Anabaena oblonga
Module 7: Anabaenopsis

Genus Overview

  • Morphology and key features
  • Similarity to other taxa
  • Distribution and observations 

Taxa

  • Anabaenopsis arnoldii
  • Anabaenopsis elenkinii
  • Anabaenopsis circularis
Module 7: Cuspidothrix

Genus Overview

  • Morphology and key features
  • Similarity to other taxa
  • Distribution and observations

Taxa

  • Cuspidothrix issatschenkoi
Module 8: Chrysosporum

Genus Overview

  • Classification history
  • Morphology and key features
  • Similarity to other taxa
  • Distribution and observations

Taxa

  • Chrysosporum bergii
Module 9: Summary & Final Assessment

Summary & Key Learnings

Final Assessment & Course Feedback Form