A. Eicker’s research while affiliated with University of Pretoria and other places

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Publications (78)


Distinct basidiospore development in Tricholosporum laeteviolaceum
  • Article

November 2000

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15 Reads

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1 Citation

Mycological Research

Cecilia Roux

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Albert Eicker

The genus Tricholosporum is characterised by cruciate spores. The formation of these basidiospores and their subsequent growth until release from the sterigmata, is described from a sequence of SEM photographs. The spores on a basidium form either a diad, a triad or a tetrad during their development. The outer cell wall layer of the basidiospore enlarges, resulting in the cruciate shape of the spores and the ultimate calyptrate appearance after release when desiccated. The spores are seceded sequentially.




Arbuscular mycorrhizas of Vangueria infausta Burch. subsp. infausta (Rubiaceae) from South Africa

December 1999

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8 Reads

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9 Citations

South African Journal of Botany

Rhizosphere soil samples and root pieces of Vangueria infausta were collected from three different sites. Arbuscular mycorrhizal (AM) fungus spores of four species were isolated from the soil. Roots were examined for the presence and density of AM fungal structures. AM fungal colonization ranged from 66-79% with intracellular hyphal coils forming the major component of AM fungal infection. No vesicles were observed.


South African fungi 10: New species, new records and some new observations

October 1999

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120 Reads

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25 Citations

Mycotaxon

Ten species belonging to the Agaricaceae, Coprinaceae and Strophariaceae are described. Accounts of two new taxa are included viz Coprinus gelatinosus and Hymenagaricus pallidodiscus, while Copelandia cyanescens and Hypholoma subviride are recorded for the first time from South Africa. Coprinus micaceus, previously considered a common and widespread taxon is shown to have been frequently confused with C. truncorum, and is now known to be rare; it is C. truncorum which is the common taxon. Accounts are given of Panaeolus antillarum, Panaeolina foenisecii, and Coprinus atramentarius, which are poorly known in the region, especially around Pretoria. Finally a description is given of the bright orange-red Stropharia aurantiaca, characteristic of mulched flower beds and a probable recent introduction to South Africa.



An historical overview of Southern African systematic mycology

January 1999

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25 Reads

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8 Citations

Transactions of the Royal Society of South Africa

Fungi were first collected for scientific study in southern Africa only in the late 1700s. In the monumental catalogue: “South African Fungi and Lichens to the end of 1945”, Doidge summarised the earliest mycological history of this country. To supplement her work Gorter compiled a bibliography of South African mycological publications for the period 1946 to 1977. The present paper briefly summarises developments since 1977 in terms of the taxonomy, nomenclature and mycobiotic surveys of all groups of fungi, including human and animal pathogens. It pays particular attention to specific habitats such as soil, fresh water, composts and animal dung as well as mycorrhizas. Although we have amassed valuable information about fungi that have an obvious economic impact, the majority remains undiscovered. Non-morphological taxonomy, including molecular and biochemical characters, will help us to expand our knowledge and understanding of the local mycobiota.


South African Fungi 8. Three new species of Hymenagaricus from South Africa, with a revised key to South African taxa

December 1998

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22 Reads

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15 Citations

South African Journal of Botany

Three new species of Hymenagaricus Heinem. from South Africa are described, of these, two viz. H. ochraceoluteus and H. rufomarginatus belong in Hymenagaricus subgen. Xanthagaricus Heinem, while H. fuscobrunneus belongs in Hymenagaricus subgen. Hymenagaricus. Accounts of these new taxa and a revised key to the species of Hymenagaricus known to occur in South Africa are provided.




Citations (72)


... The grouping of K. ivorensis suggests even wider phenotypic plasticity of the Cryptophiale clade than has been described. Conicomyces [118], on the other hand, is morphologically well distinguishable from Zanclospora. The genus was introduced for synnematous, pigmented hyphomycetes with integrated phialides and septate, setulate conidia. ...

Reference:

Phylogeny, Global Biogeography and Pleomorphism of Zanclospora
Conicomyces , A Unique Synnematous Hyphomycete Genus from South Africa
  • Citing Article
  • November 1983

... Small to medium-sized basidiomata, squamulose pileus surface, pileipellis made up of mainly hymeniform cells at centre, becoming sub-hymeniform, epitheloid to trichoid towards the margin. Basidiospores usually smooth, ellipsoid, brownish tinged, and the absence of pleurocystidia and clamp connections are the defining features of the genus Hymenagaricus (Heinemann & Little Flower, 1984;Little Flower et al., 1997;Reid & Eicker, 1995), whereas the genus Xanthagaricus is characterised by its small to rarely medium-sized basidiomata, squamulose pileus surface, pileipellis composed of subhymeniform or globose to subglobose cells, yellowish brown or bluish tinged, smooth or mostly ornamented basidiospores, and the absence of pleurocystidia and clamp connections (Heinemann & Little flower, 1984;Hosen et al., 2017;Little Flower et al., 1997). ...

The genus Hymenagaricus Heinem
  • Citing Article
  • January 1995

... The phytopathogenic component of these species, and species discovered since then, were summarized by Crous et al. (2000). Van der Westhuizen and Eicker (1988) listed the various fungi known at that stage in the Pretoria area (Gauteng Province), while Gorter and Eicker (1988) provided Afrikaans names for a list of fungi. Vellinga et al. (2009) and Wood (2017) listed a number of fungi, including macrofungi that they considered to be introduced into South Africa. ...

Die sampioene van Pretoria en omgewing
  • Citing Article
  • Full-text available
  • March 1988

Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie

... Among the 57 mitotically stable transformants, we selected three transformants that were pathogenically similar to R-2047 (CT-67, CT-80, CT-101), reduced (CT-51, CT-92, , and impaired (CT-154, CT-211, CT-225). Morpho-cultural characteristics of selected transformants along with R-2047 were recorded as described elsewhere [33]. Among the cultural characters, we studied the nature of colony edges, zonation, and texture of mycelium. ...

A synoptic key to South African isolates of Colletotrichum
  • Citing Article
  • August 1984

South African Journal of Botany

... Syst. 28 (3) (Vasyagina et al., 1961;Akhundov, 1979;Gaponenko et al., 1983;Amano, 1986;Chen et al., 1987;Gorter, Eicker, 1987;Bunkina, 1991;Simonyan, 1994;Shin, 2000;Kurt, Soylu, 2001;Babu et al., 2002;Khodaparast et al., 2005;Pirnia et al., 2006Pirnia et al., , 2007Takamatsu et al., 2008;Sharma et al., 2011;Braun, Cook, 2012;Meeboon et al., 2018;Farr, Rossman, 2021). Додамо, що в загальносвітовому списку борошнисторосяних грибів, складеному К. Амано (Amano, 1986), P. moricola на M. alba вказується для Німеччини, європейської частини колишнього СРСР та України. ...

First records of perfect stages of some powdery mildew fungi in South Africa
  • Citing Article
  • May 1983

South African Journal of Botany

... [116] 0.36 [116] 0 [116] 0.68 [116] 0.06 [116] 3.89 [116] 0.41 [116] Hericium erinaceus 0.04-0.36 [117] 0.56 & 1.04 [117] Lentinula edodes 0.6 [118] 1.8 [118] 0.00561 [106] 12-99 [106] 25 [118] 0.001 [118] Marasmius oreades 1.2-6.6 [106] No data [119] Morchella esculenta 0.00012 [107] 13 [119] Pleurotus ostreatus 0.9 [118] 2.5 [118] 0.0006 [118] 34-109 [106] 20 [118] 0.0003 [118] [129] 0.72 [129] 26 [129] Grifola frondosa 0.3 [128] Hericium erinaceus 11.200 [128] 3.410 [128] 75.810 [128] Not detected [128] 1.101 [128] Lentinula edodes 6.9 [128] 6.710 [128] 102.01 [128] Not detected [128] 1.101 [128] Marasmius oreades 30.5 [126] 6.12 [113] 9.549 [130] 0.15 [125] 0.923 [126] Morchella esculenta 19.5 [126] 9.89 [126] 181 [126] 6.26 [126] Pleurotus ostreatus 10.20 [128] 4.600 [128] 125.4 ± 0.001 [128] Not detected [128] 1.420 [128] Research showed that the nutrient compositions of different mushroom species vary by slight differences. Protein content ranges from the lowest of 13.8 mg/100 gm (Grifola frondosa) to a maximum of 38.5 mg/100 gm (Marasmius oreades). ...

A preliminary report on the nutrient content of Coprinus comatus
  • Citing Article
  • December 1983

South African Journal of Botany

... They cause more harm in their larvae stage as they bore holes in the mushrooms as maggots. These larvae cause mold and damping on the mushroom [11]. The findings on the pest and diseases affecting mushroom farms in Awka showed that damping, mold and rot affects mushrooms cultivated by the respondents in Eke Awka, Amansea and Umuawulu. ...

A report on the use of thiabendazole for the control of fungal pathogens of cultivated mushrooms
  • Citing Article
  • June 1984

South African Journal of Botany

... Importantly, the heath bog vegetation type had low OTU relative abundance and richness despite including wetland vegetation types. Freshwater Tetracladium are typical of flowing water [66,67], and static, low oxygenated, high polyphenol environments with standing water do not support high abundance or diversity of Tetracladium OTUs, despite their high organic matter contents. Similarly, low Tetracladium abundance and diversity were found in upland wooded and moorland grass mosaic vegetation types, which represent further high organic matter vegetation types. ...

The aquatic Hyphomycetes of the Hennops River (Irene), South Africa
  • Citing Article
  • August 1983

South African Journal of Botany

... Curvularia species have previously been reported from the Namib Desert. Eicker et al. (1982) surveyed rhizosphere soils associated with fairy circles in the Giribes Plain and reported isolating Curvularia, but they did not identify the species. Crous et al. (2020) described Curvularia moringae from Moringa ovalifolia (Moringaceae) collected from Namibia. ...

’n Mikrobiologiese studie van ‘kaal kolle’ in die Giribesvlakte van Kaokoland, S.W.A.-Namibië
  • Citing Article
  • December 1982

South African Journal of Botany

... and introduced the invalid name Erysiphe polyphaga for this fungus. Blumer (1952), Schmitt (1955), Stone (1962), and Gorter and Eicker (1984) published results of additional inoculation tests that supported Hammarlund's (1945) observations. Hammett (1977) maintained E. cichoracearum s. lat. ...

New South African records of Erysiphaceae from Transvaal
  • Citing Article
  • February 1984

South African Journal of Botany