Correlation between the abundance of cellulolitic fungi and selected soil properties

Kitowski

Iglik

2013

Acta Mycol

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A total of 45 species of cellulolytic fungi and ten Fusarium species were identified. Three genera (Chaetomium, Trichoderma, Fusarium) represented 80% of the frequency of cellulolytic fungi. Of them, Chaetomium globosum, Trichoderma viride and T. koningii were some of the most frequent species. A high differentiation of the richness and frequency of species of cellulolytic fungi depending on the nest and its individual layers was observed. Reasons for the differences in the frequency and species composition of the fungi were discussed.

Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

The occurrence and distribution of cellulolytic fungi and Fusarium in seven Montagu’s Harrier (Circus pygargus)

Kitowski

Iglik

2013

Acta Mycol

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“…Mycological analysis of nests included determination of overall number of fungi (mesophilic saprotrophic fungi) isolated on Martin (1950) culture medium in 26 °C. Other fungi were isolated as follows: mesophilic fungi (30 °C); fungi potentially pathogenic for human and animals (Sabouraud medium supplied with antibacterial antibiotics) (Dvorak and Otcenasek, 1969); thermophiles (45 °C, Martin and Sabouraud medium); fungi potentially phytopathogenic from Fusarium group (Nash and Snyder medium) (Kwasna et al, 1991) cellulolytic fungi (Waksman cellulose medium on Whatman paper) as the only carbon and energy source (Kornillowicz-Kowalska et al, 2003), chitinophilic fungi using native chitin as a substrate and keratinophilic fungi using native keratin of feathers as a substrate (Kornillowicz, 1993). Fungi, excluding chitin- and keratinophilic, were isolated with usage of plate dilution method.…”

Section: Methodsmentioning

confidence: 99%

Nests of Marsh harrier ( Circus aeruginosus L.) as refuges of potentially phytopathogenic and zoopathogenic fungi

Saudi Journal of Biological Sciences

Kitowski

2018

Birds' nests may be refuges for various species of fungi including that which are potentially phytopathogenic and zoopathogenic. Among the 2449 isolates of fungi obtained from nests of Marsh harriers 96.8% belonged to filamentous fungi. In total, 37 genera were identified from 63 fungi species. Within the mycobiotas of the examined nests populations of fungi which are potentially pathogenic for humans, homoiothermous animals and plants dominated. Among 63 species, 46 (72%) were potentially pathogenic fungi of which 18 species were potentially phytopathogenic and 32 species were pathogenic for homoiothermous animals. Inter alia species of fungi were found in the Marsh harriers nests: ,, , and ,. In terms of numbers, dominant in Marsh harrier nests were fungi pathogenic to birds, other homoiothermous animals and humans. On that basis it was concluded that Marsh harrier nests are both a source of fungal infections for that species and one of the links in the epidemiological cycle of opportunistic fungi for humans.

“…As reported by Wichern et al [ 32 ], dead fragments of meadow sward, including roots, may account for up to 90% of rhizodeposits. Combined with the ability of Fusarium to degrade cellulose and other polysaccharides [ 15 , 21 ], this creates good nutritional conditions for the saprotrophic growth of these fungi. Abiotic factors supporting Fusarium growth in peat-muck soils include moisture (hydrogenic soils) and low pH.…”

Section: Discussionmentioning

confidence: 99%

“…These fungi are associated primarily with agroecosystems and their specific microorganisms [ 12 ]. Previous investigations of the ecology of Fusarium in arable mineral soils [ 13 , 14 , 15 , 16 , 17 , 18 ] demonstrated the “affinity” of the genus to the roots of crop plants and its preference for acidic soils with a low level of clay minerals. These fungi are regarded as playing an important role in the functioning of plant communities and the maintenance of biological activity in cultivated soils.…”

Section: Introductionmentioning

confidence: 99%

Occurrence and Distribution of Fusarium Communities in the Root Zone in a Post-Bog Permanent Meadow in Relation to Mineral Fertilization and Growing Seasons

Wojdyło-Kotwica²,

Bohacz

et al. 2022

Pathogens

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The present study is the first report of a detailed analysis of the frequency of Fusarium and genera related to Fusarium colonizing the root zone of clovers and grasses growing in a permanent meadow established on peat-muck soil in a post-bog habitat. The isolation of fungi was carried out on the Nash and Snyder medium with the plate dilution method. The taxonomic identification of the collection of pure fungal cultures was based on morphological features revealed by macroscopic and microscopic observations. The species dominance coefficients, Marczewski–Steinhaus and Simpson species diversity index were calculated. Eight Fusarium complexes were distinguished. The distribution of the Fusarium population was uneven, which was generally reflected in a higher frequency of the F. oxysporum species complex in the clover root zone and M. nivale, F. avenaceum from the Fusarium tricinctum species complex, and F. culmorum from the F. sambucinum species complex in the grass root zone. The highest similarity of fungi was determined in the rhizoplane and the endorhizosphere. The highest species diversity and the highest population size were determined in the rhizosphere soil. The fertilization treatment reduced the growth rates in the Fusarium sensu lato and in genera related to Fusarium, as evidenced by the decrease in the total abundance and species richness. The root colonization by the Fusarium, especially the F. oxysporum species complex, was not accompanied by plant pathologies, which suggests a saprotrophic and endophytic rather than parasitic character of the relationships with the plant host.