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Logan Gray Supervisor: Dr. Gavin Kernaghan (MSVU) MSc (APSC) Candidate Saint Mary’s University Halifax, NS
MSc (APSC) Candidate Saint Marys University Halifax, NS Why do we - - PowerPoint PPT Presentation
MSc (APSC) Candidate Saint Marys University Halifax, NS Why do we - - PowerPoint PPT Presentation
Logan Gray Supervisor: Dr. Gavin Kernaghan (MSVU) MSc (APSC) Candidate Saint Marys University Halifax, NS Why do we care? < 2 mm diam. absorb water + nutrients ephemeral = huge carbon input Live in/on/around fine roots
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–trade nutrients for tree sugars –often necessary for
- ptimal tree growth
–sheath root tip with fungal tissue
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- Commensalists ?
– live between plant cells – not well understood – cryptic
- Latent saprotrophs ?
– some have pathogenic genes
- Difficult (for me) to
photograph!
wikipedia.com
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eatlas.org.au
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http://web.ethlife.ethz.ch/
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Then brought them to MSVU
Visually identified ectomycorrhizal fungi and rated decomposition Extracted, amplified, and sequenced fungal DNA
+
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What the data show us
– some decompose slower than others
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Hyphae Latex
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www.mushroomobserver.org
Calcium Oxalate crystals
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What the data show us
– show initial increase in abundance
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What the data show us
– almost non-existent for the first 16 months
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Summary of findings
fungi
– vary in decomposition rate – C. geophilum is tough
experience “bump”
– may be eating former host
are slow
– didn’t show up in large numbers
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