Species biodiversity of microscopic fungi of common reed (Phragmites australis (Cav.) Trin. ex Steud.) in the rush communities of Lake Glinno

The studies were carried out on common reed (Phragmites australis) growing on the shores of Lake Glinno and forming rush communities of the alliance Phragmition. 10 plants with disease symptoms were gathered from each of five sites. The isolation and marking of pathogens were performed twice from fragments of leaf and blade tissues with disease symptoms. First, directly after collecting the plants incubated in sterile humid chambers and microorganism cultures on CDA and PDA medium, and then phytopathogen and saprotroph species occurring on dried green material were identified for 2-4 months. The occurrence of 31 species of microscopic fungi overall was observed on the leaves, blades and inflorescences of P. australis, including 2 mycelia of Mycelia sterilia. The most frequently occurring species, present at all sites of Phragmites australis are: Alternaria alternata, Cladosporium cladosporioides, C. herbarum, Doratomyces stemonitis and Puccinia phragmitis, P. magnussiana and two mycelia of Mycelia sterilia. The most common species occurring on blades and inside them are: Acremoniella atra, Acremonium alternatum and Fusarium sambucinum. Sporadically, Ustilago grandis was also observed inside blades. Tiny necrotic stains on leaves and blades were caused by the presence of three species of the genus Leptoshaeria: L. culmifraga, L. eustoma and L. fuckelli. The occurrence of the sclerote of Claviceps microcephala was found in inflorescences.

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Occurrence of pathotypes of Phoma medicaginis var. pinodella (Jones) Boerema in the Olsztyn district

Acta Agrobotanica ◽

10.5586/aa.1991.002 ◽

2013 ◽

Vol 44 (1-2) ◽

pp. 23-42 ◽

Cited By ~ 1

Author(s):

Helena Furgał-Węgrzycka

Keyword(s):

Botrytis Cinerea ◽

Alternaria Alternata ◽

Cladosporium Cladosporioides ◽

Saprophytic Fungi ◽

Stemphylium Botryosum ◽

Field Peas ◽

Phoma Medicaginis ◽

Microscopic Features ◽

Sordaria Fimicola ◽

Mycelia Sterilia

The causal agents of leaves and pods spot-pot of peas and field peas in the Olsztyn district was the fungus Phoma medicaginis var. pinodella. Investigated isolates of P. medicaginis var. pinodella differed by macroscopic and microscopic features. From diseases leaves and pods of peas and field peas obtained also saprophytic fungi among which Alternaria alternata, Botrytis cinerea, Cladosporium cladosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola and mycelia sterilia were dominated. In the study on the identification and distribution of pathotypes of P. medicaginis var. pinodella six pathotypes were identified among which pathotype 3 were dominated. The identified pathotypes differed by macroscopic and microscopic features.

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Occurrence of pathotypes of Ascochyta pinodes (Jones) in the Olsztyn district

Acta Agrobotanica ◽

10.5586/aa.1990.010 ◽

2013 ◽

Vol 43 (1-2) ◽

pp. 109-129 ◽

Cited By ~ 1

Author(s):

Helena Furgał-Węgrzycka

Keyword(s):

Alternaria Alternata ◽

Cladosporium Cladosporioides ◽

Causal Agent ◽

Saprophytic Fungi ◽

Stemphylium Botryosum ◽

Field Peas ◽

Microscopic Features ◽

Sordaria Fimicola ◽

Ascochyta Pinodes ◽

Mycelia Sterilia

The causal agent of leaf and pods spot-pot of peas and field peas in the Olsztyn district was the fungus Ascochyta pinodes (Jones). Investigated isolates of A. pinoides different by macroscopic and microscopic features. From diseased leaves and pods of peas and field peas saprophytic fungi were also obtained. Among them Alternaria alternata, Cladosporium cladosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola and mycelia sterilia were dominant. In the study on the identification and distribution of pathotypes of A. pinodes (Jones) six pathotypes were identified among which pathotypes 3 dominated. The identified pathotypes differed by macroscopic and microscopic features.

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Influence of local growth conditions on the change of species composition of mycobiots of pine seeds

Ukrainian Journal of Forest and Wood Science ◽

10.31548/forest2021.02.005 ◽

2021 ◽

Vol 12 (2) ◽

pp. 50-57

Author(s):

G. O. Boyko ◽

N. V. Puzrina

Keyword(s):

Species Composition ◽

Scots Pine ◽

Alternaria Alternata ◽

Age Groups ◽

Similarity Index ◽

Cladosporium Cladosporioides ◽

Forest Vegetation ◽

Frequency Of Occurrence ◽

Pine Stands ◽

Mycelia Sterilia

The species composition of micromycetes of Scots pine seeds, collected from plantations growing in different forest vegetation conditions and selected from trees of different age groups, was studied. It was found that the most common species of micromycetes - Alternaria alternata, Cladosporium cladosporioides, Fusarium oxysporum, Mycelia sterilia. Dominant species of micromycetes, in particular Penicillium cyclopium, Alternaria alternata, Cladosporium cladosporioides, Fusarium sambucinum, which are the most dangerous for the development of healthy planting material, have been identified. The largest number of micromycetes from seeds of plantations growing wet birch (A3) - 189 and fresh beer (A2) - 103 micromycetes, and the smallest - fresh (B2) and raw subir (B3), respectively: 92 and 93 isolates. The highest frequency of occurrence on experimental samples of seeds of Scots pine, selected from fresh pine stands, had micromycetes: Penicillium cyclopium, Alternaria alternata, Trithothecium roseum micromycetes had the highest frequency of occurrence of Scots pine seeds taken from fresh pine stands, and Mortierella alpine, P. canescens, P. lanosum, P. variabile, Fusarium sporotrich had the lowest frequency. It was noted that Mycelia sterilia (9.2%), Fusarium sporotrichioides (9.6%) were the most common on seeds selected from trees of different age groups, while Alternaria alternata, A. tenuissima, Fusarium verticillioides were the least common. Trichothecium roseum - 1.9%. The similarity of the species composition of mycobiota seeds selected from young and medieval plantations (similarity index - 84.2%) and medieval and mature (similarity index - 89.4%) was studied. Less similarity was observed between the species composition of fungi identified on seeds selected from young and mature plantations (similarity index is -73.6%). The most similar were the seeds of medieval and mature plantations, the least similar - the young and mature. The seeds were selected from different age groups, are different in species composition of micromycetes (similarity varied between 73.6 - 89.4%). Keywords: age groups of trees, mycobiota, type of forest vegetation conditions, micromycetes, Scots pine.

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