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An illustration, not field data: a pit dug beside an oak in a floodplain wood. Positions, sizes, depths and soil layers are a drawing, and the mycelium is drawn coarser than the eye would see it. The truffle shown is a white truffle (Tuber magnatum).
Below the surface
01 Root
Tuber species form underground fruiting bodies and live in ectomycorrhizal association with trees.
Verified
What Is a Truffle? The Tuber Fungus Explained →
Evidence basis: Life Cycle and Phylogeography of True Truffles · Hrvatska enciklopedija: Tartufi
02 Mycelium
The documented life-cycle model connects mycorrhiza, extramatrical mycelium, fruiting-body development and spore dispersal.
Supported inference
How Do Truffles Grow? Mycorrhiza and the Life Cycle →
Evidence basis: Reevaluation of the Life Cycle of Tuber magnatum · Life Cycle and Phylogeography of True Truffles · Tuber life cycle
03 Fruiting body
The underground fruiting body is a reproductive structure; it is not a root or a seed.
Verified
What Is a Truffle? The Tuber Fungus Explained →
Evidence basis: Reevaluation of the Life Cycle of Tuber magnatum · Life Cycle and Phylogeography of True Truffles
Choose by your question: understand truffles, handle a fresh specimen, read a label or explore Istria. Related pages at the end of each guide lead to the next question.
02II · The place
- Istrian White Truffle: PDO Status
The protected designation status, the registration procedure and what the label proves — and what it does not.
- History of Truffle Hunting in Istria
What published archival and institutional sources report about the beginnings of truffle hunting in Istria.
03III · Beneath
- What Is a Truffle? The Tuber Fungus Explained
A truffle is a fungus: the underground fruiting body of Tuber, tied to tree roots. What that means, how species differ and why fresh truffles are scarce.
- How Do Truffles Grow? Mycorrhiza and the Life Cycle
Truffles develop underground in association with host plant roots. Learn what truffle mycelium and mycorrhiza are and how fruiting bodies develop.
- Can Truffles Be Cultivated?
Yes, some truffle species can be cultivated. Learn how inoculated trees, soil and long-term care work together, and what white-truffle trials have shown.
- Truffle Glossary
Mycorrhiza, mycelium, QUID and PDO: short explanations of terms you encounter when reading about truffles.
- The White Truffle Habitat in Istria: Soil, Water and the Mirna Valley
What peer-reviewed soil science and ecology say about why Istrian woods and river valleys produce Tuber magnatum.
04IV · The fruit
- How Are Truffle Species Identified?
How appearance, microscopy and DNA analysis identify a species, how substitution with Chinese truffle is detected, and why origin is a separate question.
05V · Time
- Climate and Truffle Harvests: What the Science Shows
How rainfall relates to black-truffle harvests, and what reports from Istria can and cannot show.
06VI · The search
- How Are Truffles Found and Collected?
Truffles are found by scent. Learn how collection works and which Croatian rules apply to permits, land access and nature protection.
07VIII · The table
- How to Store Fresh Truffles
How to store fresh truffles, manage moisture and understand why no single shelf life applies to every species.
- How to Clean a Fresh Truffle and Use Its Aroma
How to remove soil from a fresh truffle, and what experiments show about aroma passing into oil, eggs and milk and about heat in truffle products.
- Truffle Aroma: What We Know
Why truffles smell different, and what aroma can tell us about species, maturity, storage and added flavouring.
- How to Read a Truffle Product Label
Learn how to read the ingredients, declared truffle percentage, added flavouring and origin on a truffle product label.
- How to Assess Fresh-Truffle Quality
What to ask about species and storage, and how to read descriptions of firmness, appearance and aroma together.