Questions tagged [mycology]

The scientific study of fungi.

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What is this mushroom in Illinois?

I live in the Northwest suburbs of Illinois and we moved into this house last year. I noticed these mushrooms popping up in one corner of my yard and I’ve never seen this type before. They don’t seem ...
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Have some lower order organisms evolved to grow below the freezing point of water?

I just learned that water sublimates, which prompts me to ask: Can lower order organisms (e.g. bacteria / fungi) grow below the freezing point of water?
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Where in the biological realm is vitamin B5 chiefly produced?

Can yeast produce pantothenic acid (vitamin B5)? Do bacteria efficiently produce it? Or does it only come from plants? The Wikipedia page for pantothenic acid doesn’t seem to answer the question (...
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help with mushrooms identification

I know that mushrooms identification is a difficult process. but I would like to ask for help in the identification of this one. It growth over the grass in a backyard on Toronto, Canada.
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Beneficial effects of the fungi of a termite mound on the diseases suffered by the termites

My motivation to join this Biology Stack Exchange is the article by David Pride that I've read from the Spanish edition of Scientific American, that's Investigación y Ciencia. The article is [1], and ...
5 votes
1 answer
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Is this bear excreta on trees?

We were hiking lately in Canadian Rockies (the Kananaskis country) and kept encountering branches of conifers near ground covered in brown substance similar to mud or excreta. It didn't have any ...
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Bolete (?) mushroom identification

I'm attempting to identify a gorgeous set of mushrooms. I'm not anything resembling a mycologist, and I have no intention on consuming these... But for my own curiosity, I'm trying to identify these ...
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Does refrigerating (but not freezing) bread inhibit mycelium growth?

During COVID, supermarkets struggled to keep things in stock. Bread seemed to be hard to come by for a time. As a result, when I came across the brand I liked, I grabbed a couple extra loaves. I didn'...
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Identification of Mold / Fungus

I am working with some old plaster powder, and a few days after it set (mixed with water), I found that pink mold / fungus appears to be growing on it. See attached photo. Please help me identify what ...
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Is the white rot fungi Phanerochaete chrysosporium edible?

I have had problem finding information on whether the fungus produces poison or not for a school project. Any help is much appreciated
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What kind of fungus is this?

What kind of fungus is this? Picture taken in a forest in Haliburton, Ontario on April 30th, 2020.
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Identification of fungi possibly a Pythium sp. or similar morphology

I am investigating a fungi. Grown on Potato Agar it resembles a Pythium type species similar to P. insidiosum with even filamentous white colony growth. However the hyphae are producing fragmented ...
3 votes
1 answer
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What is this mushroom attached to the terrarium with transparent cap and black strips?

I have a terrarium with something black attached to the glass with a whitish green stem. Can someone please help identifying this? The terrarium is outside in the backyard and receives only direct ...
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Is this a Enoki aka. velvet shank aka. Flammulina velutipes?

In December in southern Germany I found the following mushroom on a some remains of a tree. From what I read, saw and felt (sticky cap when wet), I am very sure it is a velvet shank, especially ...
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What is the effect of anti-fungal soap?

As I understand, most popular anti fungal soap/shampoo has Ketoconazole as an active ingredient. Ketoconazole stops the growth of fungi, but as it does not kill it, but halts division, how can soap/...
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What are marine fungi like?

Particularly, what is their mycelium like and where exactly do they grow it? I imagine that their spores travel though water same as terrestrial fungi travel through air until they stumble upon solid ...
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What organism is this? Repetitive, long thread, double spikes, ... (from a human sputum sample) [closed]

Link to video Collected in Portugal.
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Can antibiotic resistance cause problems for the microorganisms producing them? [duplicate]

My understanding is that antibiotics are naturally produced by microorganisms as a defensive measure against certain kinds of bacteria. For example, some Penicillium molds produce penicillin. Clearly, ...
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Is there species of mushrooms that grow in the wild in Mediterranean environment?

I'm looking for species of mushrooms which can grow wild (or with minimal human intervention) in Mediterranean environment (which is characterized by dry summers and mild, wet winters.), specifically ...
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Doubts about what is growing in my bacteriological cultivation

Foreword: I don't belong to the field at all, I am a high school student with a passion for science so I apologise in advance if I formulate the question incorrectly or make some mistakes. Out of ...
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How to reduce the quantity of (carcinogenic) mycotoxins in oatmeal?

Like all cereals, oat is commonly (nearly systematically) contaminated by several types of mycotoxin (produced by molds) known to cause cancer{1}. Oat is one of the most infected cereals{2}. Unless ...
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Asexual reproduction by secondary mycelium in basidiomycetes

I'm studying in class 11 and the the following line was mentioned in my textbook: "Dikaryophase or secondary mycelium may multiply by different types of spores - chlamydospores aecidiospores, ...
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Species ID of this giant brain-shaped mushroom? How do its spores escape, there's no "puff" for this puffball!

After several days of rain then a few warm sunny days in northern Taiwan in August, I came across this giant mushroom growing in an open field that's only occasionally mowed. This mushroom about 18 cm ...
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6 votes
1 answer
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In lichen, do the fungi consume the oxygen produced by algae?

Is the oxygen produced by algae in photosynthesis consumed by the fungi, specifically in marine lichens where oxygen is less abundant? I am wondering this because of a speculative evolution project.
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Sabouraud dextrose agar breaking?

I recently started growing some Geotrichum Candidum (GC) on Sabouraud dextrose agar (SDA) beds. The SDA was poured into sterilized petri dishes. After setting the plates in a cooler (20 C) for a day, ...
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1 answer
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Mushroom Identification: Brown gilled mushroom in Ohio lawn near rotting stump roots

Even though I ID a lot on this site, I'm rather unqualified to ID mushrooms (even with the help of sites like urbanmushrooms.com). Can anyone help me ID this mushroom species? Attributes: ...
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2 answers
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What is the interchange of nutrients between plants called?

I've heard about how fungi is the nutrient super highway of the plant web. What is this interchange between plants and the fungi called?
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What is the effect of an acidic solution on hydrolytic enzymes?

I'm working on a school research project and my research question is "What is the effect of increasing concentrations of Acid X on hydrolytic enzymes, measured through the loss of mass of leaf ...
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What is causing these lichen patterns on a tree in Scotland?

I recently saw these lichens growing on a tree in Scotland. What is causing the pattern of dark lines? Are these the boundaries between individual lichens? Or could it be something to do with the ...
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1 answer
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Safety in Liposomal Amphotericin B

From reading about Amphotericin B antifungal, I understand it is quite a toxic medicine for kidney, but I am not able to find any details as to how Liposomal version of same medication is so safe, in ...
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What can we expect when we culture a mould in a liquid?

I am currently running a short project in my school, where I am trying to look into the biodegradation of dyes from textile effluents using Fursarium sp. Most of the articles that I have read uses a ...
2 votes
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The wood wide web strengthening/expanding the heartwood of damaged pines

My grandfather told me about a practice: girdling/ring-barking (not sure which was employed) of pine trees in order to make the wood stronger. Now, he didn't give too many details, so I had to do some ...
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What disease / parasite / fungi has affected the mango in the picture?

The mango is found to have some kind of fungi / worm on it's surface . This has affected a huge number of mangoes in the same tree . It can be described as white and fibrous / weblike structure near ...
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Growing Penicillium Digitatum Mold

I left a cup of tea with Lemmon on my desk and after a while green mold start growing on the water. From my understating this is Penicillium digitatum. I gave it some sugar and after one day black ...
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Can the fungal form of Malassezia morph into the fungal form of Candidia when feeling threatened? Resistance Mechanisms

Malassezia feeds on oils in the carbon chain 11-24 and Candida feeds on sugars. I recall learning that when these types of fungus feel they are under attack, they can morph. Does this mean they can ...
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1 answer
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A word that includes plants and fungi, but not animals [closed]

Hello biologists and biology enthusiasts! I am working on a project which includes information about plants and fungi. It would be very helpful for me if there a word that means plants-and-fungi, but ...
5 votes
1 answer
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What is this dark brown organism growing on a door frame?

A few brown spots appeared on a door frame and within 1 week it has grown to this size (~15cm). I have no idea what it is. How do I remove it completely? I worry that if I just wipe it off, it will ...
1 vote
1 answer
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Does the fact cordyceps mostly affect insects have something to do with chitin being polysaccharide?

This is just a conjecture of mine based on those observations: Fungus seems to be very good at attacking tough chains of sugars like cellulose and starch. insects are covered by Chitin, a ...
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What kind of parasite is this?

I found this strange disease on the leaves of a pear tree. I don't know the tree's species but I found it in South Turkey, 150 km from the Mediterranean. What causes this disease?
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circular pattern of mold on quince

Could someone explain why mold on my quinces grows in well separated circles around a center? To make clear, what I mean I post the picture
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bunsen vs meker for best sterile field [closed]

I need one bunsen and i have a friend that sells me a bunsen-meker burner. I see that bunsen-meker burners have more flame diameter, so should have more diameter of sterile field, but i dont know XD ...
4 votes
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How to approach identifying Melampsora species?

I'd like to figure out which species of Melampsora that is growing on this European aspen. What would be the right approach? Would a microscope or other tool help? Is there even more than a single ...
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What kind of mushroom is this in central Europe?

I found some mushrooms in the forest and I'd like to know what kind it is, for being able to tell how to protect the trees from it. Growing Info growing location: central Europe, forest host plant: ...
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9 votes
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Puffball growing on a tree: What kind of mushroom is this?

What kind of mushroom/fungus is the one shown in the photos? Description: Looks similar in size (~4-5 cm as I remember) and shape to a puffball. It is not hard to the touch, unlike typical mushrooms ...
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2 answers
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Why does vacuum sealing of foods prevent spoilage from anaerobic bacteria?

I have noted that many purchased food items in containers only require refrigeration after they have been opened, thus eliminating the vacuum seal. Air contains bacteria and fungus spores that enter ...
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Can someone identify these fungi?

Found them in Gujarat, India. Found growing among potted plants
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Can anyone identify these mushrooms?

Found in the Dolomites, Italy in a wooden fence:
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Function of amatoxins

There are a couple of papers and "lots" of anectodal evidence which imply that mushroom hunting does not have any adverse effects on the fungi, neither short nor long term. One of the ...
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Is it a trichoderma?

I have got some fungi on a polypore. Can it be a trichoderma?
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Can aflotoxin presence be inferred from the mild discolorotion at the middle parts of a hazelnut?

Can aflotoxin presence be inferred from the mild discolorotion at the middle parts of a hazelnut? For instance, how likely is it that the hazelnuts pictured below contain Aflotoxin? P.S.: these ...

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