Mold

The colloquial term mold (or mould; see spelling differences) is applied to a large and taxonomically diverse number of fungal species where their growth results in a moldy appearance of objects, especially food. The objects become discolored by a layer of fungal growth. Molds are fungi that grow in the form of multicellular filaments called hyphae. A connected network of these tubular branching hyphae, called a mycelium, is considered a single organism. The hyphae are generally transparent, so the mycelium appears like very fine, fluffy white threads over the surface. Cross-walls (septa) may delimit connected compartments along the hyphae, each containing one or multiple, genetically identical nuclei. The dusty texture of many molds is caused by profuse numbers of asexual spores conidia formed by differentiation at the ends of hyphae. The mode of formation and shape of these spores is traditionally used to classify the mold fungi. Many of these spores are colored, making the fungus much more obvious to the human eye at this stage in its life-cycle. In contrast, fungi that can adopt a single celled growth habit are called yeasts.

Famous quotes containing the word mold:

“O, what a noble mind is here o’erthrown!
The courtier’s, soldier’s, scholar’s,eye, tongue, sword,
Th’ expectancy and rose of the fair state,
The glass of fashion and the mold of form,
Th’ observed of all observers, quite, quite down!”
—William Shakespeare (1564–1616)

“Death is an incident producing clay. Use it, mold it, learn from it.”
—John Gilling, British screenwriter. Dr. Knox (Peter Cushing)

“New York was a new and strange world. Vast, impersonal, merciless.... Always before I had felt like a person, an individual, hopeful that I could mold my life according to some desire of my own. But here in New York I was ignorant, insignificant, unimportant—one in millions whose destiny concerned no one. New York did not even know of my existence. Nor did it care.”
—Agnes Smedley (1890–1950)