Leohumicola incrustata

Last updated

Leohumicola incrustata
Scientific classification
Kingdom:
Division:
Subdivision:
Class:
Order:
Family:
Incertae sedis
Genus:
Species:
Leohumicola incrustata

Nguyen & Seifert, 2008

Leohumicola incrustata is a species of fungus. [1] It was named after the appearance of its terminal conidial cells, incrusted with a crust-like slime. It was first found in the Cape of Good Hope Nature Reserve, from heated soil. Large warts or the production of slime on its terminal cell are this species' defining characteristics. Its conidia are similar to those of L. verrucosa , however in the latter the wall ornamentation forms smaller warts.

Contents

Description

Its conidiogenous hyphae are hyaline, measuring approximately 1.5–2.0μm wide, often found in fascicles in aerial mycelium. These are reduced to a single denticle that is 1.0–3.0μm long and 1.5–3.5μm wide. Conidia are two-celled, either solitary or distributed side by side in clusters. Its terminal cell is 4.0–5.5 by 4.0–5.0μm, being globose to subglobose, transitioning to a pale brown to dark brown colour; its conidial walls are slightly thick, smooth or verrucose, with warts measuring 0.75 to 1.5μm, incrusted with a brown-coloured slime that is 1–2μm thick around the apex. Its basal cell measures 2.5–4.5 by 2.0–3.0μm. Chlamydospores are sparsely produced, being intercalary, single, and the same colour as the conidial terminal cell. The vegetative mycelium often carry swollen, monilioid hyphae that are 1.5 to 3μm wide, septate, and show thickened walls. [1]

Related Research Articles

<i>Amanita gemmata</i> Species of fungus

Amanita gemmata, commonly known as the gemmed amanita or the jonquil amanita, is an agaric mushroom of the family Amanitaceae and genus Amanita. The fruit body has a cap that is a dull to golden shade of yellow, and typically 2.5–12 cm in diameter. The cap surface is sticky when moist, and characterized by white warts, which are easily detached. It is initially convex, and flattens out when mature. The flesh is white and does not change colour when cut. The gills are white and closely spaced. The stem is pale yellow, and measures 4–12 cm long by 0.5–1.9 cm thick. The partial veil that covers the young fruit body turns into the ring on the stem at maturity. The spore print is white, while the spores are roughly elliptical, and measure 8–10 by 6.5–7.5 μm.

<i>Acrophialophora fusispora</i> Species of ascomycete fungus found in soil, air and various plants

Acrophialophora fusispora is a poorly studied ascomycete fungus found in soil, air and various plants. A. fusispora is morphologically similar to the genera Paecilomyces and Masonia, but differ in the presence of pigmented conidiophores, verticillate phialides, and frequent sympodial proliferation. Moreover, A. fusispora is distinguished by its pigmented spindle-shaped conidia, covered with spiral bands. The fungus is naturally found in soils of tropical to temperate regions. The fungus has been identified as a plant and animal pathogen, and has recently been recognized as an emerging opportunistic human pathogen. A. fusispora infection in human is rare and has few documented clinical cases, but due to the rarity of the fungus and potential misidentification, the infections may be underdiagnosed. Clinical cases of A. fusispora include cases of keratitis, pulmonary colonization and infection, and cerebral infections. The fungus also has two documented cases of infection in dogs.

<i>Microsporum gypseum</i> Species of fungus

Microsporum gypseum is a soil-associated dermatophyte that occasionally is known to colonise and infect the upper dead layers of the skin of mammals. The name refers to an asexual "form-taxon" that has been associated with four related biological species of fungi: the pathogenic taxa Arthroderma incurvatum, A. gypsea, A. fulva and the non-pathogenic saprotroph A. corniculata. More recent studies have restricted M. gypseum to two teleomorphic species A. gypseum and A. incurvatum. The conidial states of A. fulva and A. corniculata have been assigned to M. fulvum and M. boullardii. Because the anamorphic states of these fungi are so similar, they can be identified reliably only by mating. Two mating strains have been discovered, "+" and "–". The classification of this species has been based on the characteristically rough-walled, blunt, club-shaped, multicelled macroconidia. Synonyms include Achorion gypseum, Microsporum flavescens, M. scorteum, and M. xanthodes. There has been past nomenclatural confusion in the usage of the generic names Microsporum and Microsporon.

<i>Pulveroboletus bembae</i> Species of fungus

Pulveroboletus bembae is a species of fungus in the family Boletaceae that was first described in 2009. It is known only from the rainforest of northern Gabon, a region known for its high level of species diversity. Like all boletes, P. bembae has fleshy fruit bodies that form spores in tubes perpendicular to the ground on the underside of the cap. These yellowish tubes form a surface of pores, each about 1–2 mm in diameter. The brownish caps may reach up to 3.5 cm (1.4 in) wide, and rest atop pale brown stems up to 5.5 cm (2.2 in) long. The stems have a woolly, whitish yellow ring of tissue that is short-lived, and may be absent in older specimens. The spores of P. bembae are spindle- or fuse-shaped, and have rough surfaces—a detail observable when viewed with scanning electron microscopy. The fungus grows in a mycorrhizal relationship with Gilbertiodendron dewevrei, the dominant tree species of the Guineo-Congolian rainforest. Other similar Pulveroboletus species in the area include P. annulus and P. croceus, which may be differentiated from P. bembae by a combination of macro- and microscopic characteristics.

<i>Amanita nothofagi</i> Species of fungus

Amanita nothofagi is a species of fungus in the family Amanitaceae. Endemic to New Zealand, the species was first described by mycologist Greta Stevenson in 1962. The fruit bodies have dark brown caps that are up to 13 cm (5.1 in) in diameter and covered with patches of soft greyish-brown scales or warts. The gills underneath the cap are crowded together, free from attachment to the stem, and white, becoming tinged with yellow in age. The stem of the mushroom is 4–14 cm (1.6–5.5 in) long by 0.5–2.5 cm (0.2–1.0 in) thick, and has a ring. The spore print is white, and individual spores are spherical to ellipsoid, measuring 7.5–9 by 7.5–9 micrometres. The mushroom may be confused with another New Zealand species, A. australis, but can be distinguished by certain characteristics. Amanita nothofagi is a mycorrhizal species, and grows in association with native New Zealand trees such as Southern Beech.

<i>Amanita atkinsoniana</i> Species of fungus

Amanita atkinsoniana, also known as the Atkinson's amanita, is a species of fungus in the family Amanitaceae. It is found in the northeastern, southeastern, and southern United States as well as southern Canada, where it grows solitarily or in small groups on the ground in mixed woods. The fruit body is white to brownish, with caps that measure up to 12.5 cm (5 in) in diameter, and stems up to 20 cm long and 2.5 cm (1 in) thick. The surface of the cap is covered with reddish-brown to grayish-brown conical warts. The stem has a bulbous base covered with grayish-brown scales. The fruit bodies smell faintly like bleaching powder. Although not known to be poisonous, the mushroom is not recommended for consumption.

<i>Amanita ravenelii</i> Species of fungus

Amanita ravenelii, commonly known as the pinecone lepidella, is a species of fungus in the family Amanitaceae. The fruit bodies are medium to large, with caps up to 17 cm (6.7 in) wide, and a stem up to 25 cm (9.8 in) long and 3 cm (1.2 in) thick. The warts on the whitish cap surface are large—up to 6 mm (0.24 in) wide and 4 mm (0.16 in) high. The stem has a large bulb at its base, covered with whitish to brownish scales, that may root several centimeters into the soil. The ring on the stem is thick and cotton- or felt-like. It is widely distributed in mixed and deciduous forests of the southeastern United States, where it grows solitarily or in groups on the ground in late summer and autumn. The mushrooms have a unique odor resembling bleaching powder.

<i>Aseroe coccinea</i> Species of fungus

Aseroe coccinea is a species of stinkhorn fungus in the genus Aseroe. First reported in Japan in 1989, it was not formally validated as a species until 2007, the delay related to a publication error. The receptacle, or fruit body, begins as a partially buried whitish egg-shaped structure, which bursts open as a hollow white stipe with reddish arms, then erupts and grows to a height of up to 15 mm (0.6 in). It matures into a star-shaped structure with seven to nine thin reddish tubular "arms" up to 10 mm (0.4 in) long radiating from the central area. The top of the receptacle is covered with dark olive-brown spore-slime, or gleba. A. coccinea can be distinguished from the more common species A. rubra by differences in the color of the receptacle, and in the structure of the arms. The edibility of the fungus has not been reported.

<i>Xeromphalina setulipes</i> Species of fungus

Xeromphalina setulipes is a species of fungus of the family Mycenaceae. First collected in 2005, it was described and named in 2010 by Fernando Esteve-Raventós and Gabriel Moreno, and is known only from oak forests in Ciudad Real Province, Spain. The species produces mushrooms with dark reddish-brown caps up to 15 millimetres (0.59 in) across, dark purplish-brown stems up to 45 millimetres (1.8 in) in height and distinctive, arched, brown gills. The mushrooms were found growing directly from the acidic soil of the forest floor, surrounded by plant waste, during November.

<i>Lactarius rupestris</i> Species of fungus

Lactarius rupestris is a species of mushroom in the family Russulaceae. Described as a new species in 2010, it is known only from the semi-arid region in the National Park of Catimbau of Brazil. The mushroom is characterized by a stout fruit body with a smooth and sticky orange cap up to 7 cm (2.8 in) in diameter. The gills on the underside of the cap are closely spaced and frequently anastomosed. The stem is 35–45 mm (1.4–1.8 in) long by 18–21 mm (0.71–0.83 in) thick. The mushrooms exude a sparse cream-colored latex when cut or injured.

<i>Paraphaeosphaeria pilleata</i> Species of fungus

Paraphaeosphaeria pilleata is a species of fungus in the Lophiostomataceae family. The species fruits exclusively in the lower parts of the culms of the black needlerush. It is found on the Atlantic Coast of North Carolina.

<i>Tuber microspermum</i> Species of fungus

Tuber microspermum is a species of truffle in the family Tuberaceae. Described as new to science in 2012, the edible species is found in China. The roughly spherical truffle is up to 1.5 cm (0.6 in) wide and yellowish-brown in color. It is distinguished from other truffles by its small asci and small spores that have a network-like surface pattern punctuated by small spines.

<i>Tuber sinoexcavatum</i> Species of fungus

Tuber sinoexcavatum is a species of truffle in the family Tuberaceae. Described as a new species in 2011, it is found in China. The pale yellowish-brown to brown truffles measure up to 3 cm (1.2 in) in diameter. The species is named for its close resemblance to the common European truffle T. excavatum.

Leohumicola atra is a species of fungus. It is named after the dark-brown colour of its terminal conidia cells. It was found in Crater Lake National Park, Oregon, from heated soil. This species' conidia terminal cell becomes a darker brown compared to its cogenerate species, being nearly black.

Leohumicola levissima is a species of fungus. It is named after the smooth walled appearance of its terminal conidial cells. It was first found in Crater Lake National Park, Oregon. The terminal cell of this species’ conidia remains smooth even after 3 months’ time, as opposed to the encrusted terminal cells of L. verrucosa and L. incrustata. Conidia of L. atra have similarly smooth terminal cells, but which are darker.

Arthrobotrys dactyloides is a species of fungus in the family Orbiliaceae. It is nematophagous, forming loops of hypha to trap nematodes, on which it then feeds.

<i>Mariannaea elegans</i> Species of fungus

Mariannaea elegans an anamorphic fungus. It is mainly found on rotting wood and soil. M. elegans is not pathogenic to humans, animals, or plants.

Botryotrichum piluliferum is a fungal species first identified in 1885 by Saccardo and Marchal. It was discovered to be the asexual state of a member of the ascomycete genus, Chaetomium. The name B. piluliferum now applies to the fungus in all its states. B. piluliferum has been found worldwide in a wide range of habitats such as animal dung and vegetation. The colonies of this fungus start off white and grow rapidly to a brown colour. The conidia are smooth and white. B. piluliferum grows optimally at a temperature of 25-30 °C and a pH of 5.5.

Leohumicola verrucosa is a heat-resistant, endophytic, ericoid mycorrhizal soil fungus. Its species name refers to rough, warty or spine-like ornamentations on its aleurioconidia. L. verrucosa was first described from samples of soil exposed to fire; among these it was especially abundant in regularly burned blueberry fields in eastern Canada. L. verrucosa forms mycorrhizal relationships with a wide variety and distribution of species in the Ericaceae family.

<i>Xenodevriesia</i> Species of ascomycete fungus

Xenodevriesia strelitziicola is a pathogenic ascomycete fungus in the class Dothideomycetes that infects the South African plant Strelitzia. It is the only species of the monotypic genus Xenodevriesia and family Xenodevriesiaceae.

References

  1. 1 2 Nguyen, H.D.T.; Seifert, K.A. (2008). "Description and DNA barcoding of three new species of Leohumicola from South Africa and the United States". Persoonia. 21 (1): 57–69. doi:10.3767/003158508X361334. ISSN   0031-5850. PMC   2846127 . PMID   20396577.

Further reading