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Difference Between Oomycetes and Zygomycetes l Oomycetes vs Zygomycetes


The key difference between oomycetes and zygomycetes is that the oomycetes do not contain chitin on their cell walls instead they contain cellulose, beta glucans, and amino acid hydroxyproline while zygomycetes contain chitosan on their cell walls. Another difference between oomycetes and zygomycetes is that the vegetative state of oomycetes is diploid while the zygomycetes are haploid or dikaryotic.

Oomycetes and zygomycetes are microscopic eukaryotic organisms. Oomycetes resemble true fungi. But they are water moulds. Zygomycetes are one major class of phylum Zygomycota which are true fungi. They are ubiquitous, saprophytic, environmental fungi.

CONTENTS

1. Overview and Key Difference
2. What are Oomycetes
3. What are Zygomycetes
4. Similarities Between Oomycetes and Zygomycetes
5. Side by Side Comparison – Oomycetes vs Zygomycetes in Tabular Form
6. Summary

What are Oomycetes?

Oomycetes resemble fungi, even though they are not fungi. Earlier, they used to be known as lower fungi. However, more than fungi, they show characteristics similar to brown and golden algae and diatoms. Therefore, oomycetes are the water moulds, and they are filamentous. Furthermore, they are terrestrial and aquatic eukaryotic organisms. They obtain nutrients via absorption. Hence some are saprophytic while many are pathogenic. Cell walls of oomycetes have cellulose, beta glucans, and the amino acid hydroxyproline.