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Infection, past or present, is diagnosed by small round exit holes of 1 to 1.5 mm diameter. Active infections feature the appearance of new exit holes and fine wood dust around the holes. Because of the 3–4 year life cycle of Anobium punctatum , timber or timber products bought containing an A. punctatum infection may not manifest holes until ...
Burl wood is very hard to work with hand tools or on a lathe, because its grain is twisted and interlocked, causing it to chip and shatter unpredictably. This "wild grain" makes burl wood extremely dense and resistant to splitting, which made it valued for bowls, mallets, mauls and "beetles" or "beadles" for hammering chisels and driving wooden ...
As a result of the multitude of possible hosts, symptoms also range a great deal from one infection to another. All infected hosts do however display symptoms common to white rotting fungi. These include light or bleached wood as a result of the degradation of essential cell wall compounds such as lignin and hemicellulose. In addition to these ...
An antler on a red deer stag. Velvet covers a growing antler, providing blood flow that supplies oxygen and nutrients. Each antler grows from an attachment point on the skull called a pedicle. While an antler is growing, it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone. [6]
Once they land on a suitable small wound or twig stub, the spores may germinate and the mycelia grow into the inner wood and cause infection. [6] P. pini produces only one type of spores, basidiospores, which is also a type of sexual spores and the fungus overwinters as mycelium in diseased trees or dead trees.
Bone, ivory, and antler are rarely attacked by insects, but horn is often seriously damaged by the larvae of carpet beetles and clothes moths. [7] Light, ultraviolet, and infrared. Ivory, bone, and antler should be kept away from bright light such as spotlights or direct sunlight. Bright light can increase the surface temperature of the object.
The mycophagous phase of the life cycle takes place in dead or dying wood, where the nematodes live and feed upon fungi, rather than the wood itself. The nematode cannot travel outside of the wood independently; it must be transported by an insect vector. B. xylophilus has the shortest life cycle of any known parasitic nematode. In laboratory ...
Improper processing or storage can allow bacteria to grow and produce dangerous toxins. Signs of contamination, such as unusual odors, changes in texture, or bulging cans (also known as "bombage"), indicate food spoilage and should be disposed. [80] Preventing gas gangrene involves taking precautions to avoid bacterial infections.