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In mycology, "setae" refer to dark-brown, thick-walled, thornlike cystidia found in corticioid and poroid fungi in the family Hymenochaetaceae. [10] Though mainly microscopic, the setae of some species may be sufficiently prominent to be visible with a hand lens.
Scutellinia setosa is a species of apothecial fungus belonging to the family Pyronemataceae. Its fruit bodies are disc-shaped with thick black "hairs" ( setae ) around the cup rim. The smooth, ellipsoid , spores measure 11–13 by 20–22 μm and contain numerous oil droplets.
The order was proposed in 1977 to recognize the family Hymenochaetaceae at a higher taxonomic rank. As originally conceived, species within the Hymenochaetales had several morphological features in common, notably brown or brownish basidiocarps (fruit bodies) that turn black in alkali, hyphae lacking clamp connections, and the presence (in most species) of characteristic setae (thick-walled ...
Ameroseiidae can be recognised by: a well-sclerotised and often strongly ornamented dorsal shield; usually 27-30 pairs of setae on the dorsal shield and setae J5 always absent; the sternal shield often reduced to 2 pairs of setae with st3 on shield or on platelets; the corniculi often toothed; the chelicerae sometimes with a membranous lobe; and the tectum usually simple, smoothly (rarely ...
The cap cuticle comprises a layer of club-shaped, thin-walled cells measuring 25–40 by 10–30 μm interspersed with long, dark, thick-walled setae. Yellowish-brown setae are plentiful on the cap surface, and consist of an elongated, hair-like segment up to 315 μm long, attached to the surface by a bulbous base that is 3–9 μm wide. [12]
Adult: Supracoxal setae scx spiniform, with rounded tip. Female: Spermatophores present. Inseminatory canal cylindrical, well sclerotized, protruding into spermatheca. Condylophores with short sclerotized portion and distinct proximal unsclerotized portion connected to the tarsus. Male: Genital setae (g) represented by transparent disk ...
When the beetle bores a host plant, it releases the symbiotic fungus from its mycangium. The symbiotic fungus becomes a plant pathogen, acting to weaken the resistance of host plant. [8] In the meantime, the fungus grows quickly in the galleries as the main food of beetle. [8]
Colletotrichum lindemuthianum is a fungus which causes anthracnose, or black spot disease, of the common bean plant (Phaseolus vulgaris).It is considered a hemibiotrophic pathogen because it spends part of its infection cycle as a biotroph, living off of the host but not harming it, and the other part as a necrotroph, killing and obtaining nutrients from the host tissues.