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