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

2013 ◽  
Vol 43 (1-2) ◽  
pp. 109-129 ◽  
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 <i>Ascochyta pinodes</i> (Jones). Investigated isolates of <i>A. pinoides</i> different by macroscopic and microscopic features. From diseased leaves and pods of peas and field peas saprophytic fungi were also obtained. Among them <i>Alternaria alternata, Cladosporium cladosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola</i> and mycelia sterilia were dominant. In the study on the identification and distribution of pathotypes of <i>A. pinodes</i> (Jones) six pathotypes were identified among which pathotypes 3 dominated. The identified pathotypes differed by macroscopic and microscopic features.

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

2013 ◽  
Vol 44 (1-2) ◽  
pp. 23-42 ◽  
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 <i>Phoma medicaginis</i> var. <i>pinodella</i>. Investigated isolates of <i>P. medicaginis</i> var. <i>pinodella</i> differed by macroscopic and microscopic features. From diseases leaves and pods of peas and field peas obtained also saprophytic fungi among which <i>Alternaria alternata, Botrytis cinerea, Cladosporium cladosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola</i> and <i>mycelia sterilia</i> were dominated. In the study on the identification and distribution of pathotypes of <i>P. medicaginis</i> var. <i>pinodella</i> six pathotypes were identified among which pathotype 3 were dominated. The identified pathotypes differed by macroscopic and microscopic features.

scholarly journals Occurrence of pathotypes of Ascochyta pisi (Lib.) in the Olsztyn district

2013 ◽  
Vol 44 (1-2) ◽  
pp. 5-22
Author(s):  
Helena Furgał-Węgrzycka
Keyword(s):  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Stemphylium Botryosum ◽  
Field Peas ◽  
Microscopic Features ◽  
Sordaria Fimicola ◽  
Ascochyta Pisi

The causal agents of leaf and pods spot-pot of peas and field peas in the Olsztyn district was the fungus <i>Ascochyta pisi</i> (Lib.). Investigated isolates of <i>A. pisi</i> differed by macroscopic and microscopic features. From diseases leaves and pods of peas and field peas obtained also saprophitic fungi among which <i>Alternaria alternata, Botrytis cinerea, Cladosporium c1adosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola</i> and <i>mycelia starilia</i> were dominated. In the study of the identification and distribution of pathotypes of <i>A. pisi</i> five pathotypes were identified among which pathotype 2 were dominated. The identified the pathotypes differed by macroscopic and microscopic features.

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

2012 ◽  
Vol 58 (2) ◽  
pp. 359-368
Author(s):  
Kinga Mazurkiewicz-Zapałowicz ◽  
Krystyna Janowicz ◽  
Maria Wolska ◽  
Anna Słodownik
Keyword(s):  
Phragmites Australis ◽  
Alternaria Alternata ◽  
Common Species ◽  
Common Reed ◽  
Cladosporium Cladosporioides ◽  
Fusarium Sambucinum ◽  
Microscopic Fungi ◽  
Disease Symptoms ◽  
Green Material ◽  
Mycelia Sterilia

The studies were carried out on common reed (<i>Phragmites australis</i>) growing on the shores of Lake Glinno and forming rush communities of the alliance <i>Phragmition</i>. 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 <i>P. australis</i>, including 2 mycelia of <i>Mycelia sterilia</i>. The most frequently occurring species, present at all sites of <i>Phragmites australis</i> are: <i>Alternaria alternata</i>, <i>Cladosporium cladosporioides</i>, <i>C. herbarum</i>, <i>Doratomyces stemonitis</i> and <i>Puccinia phragmitis</i>, <i>P. magnussiana</i> and two mycelia of <i>Mycelia sterilia</i>. The most common species occurring on blades and inside them are: <i>Acremoniella atra</i>, <i>Acremonium alternatum</i> and <i>Fusarium sambucinum</i>. Sporadically, <i>Ustilago grandis</i> was also observed inside blades. Tiny necrotic stains on leaves and blades were caused by the presence of three species of the genus Leptoshaeria: <i>L. culmifraga</i>, <i>L. eustoma</i> and <i>L. fuckelli</i>. The occurrence of the sclerote of <i>Claviceps microcephala</i> was found in inflorescences.

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

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.

scholarly journals HONGOS ENDÓFITOS EN 2 PLANTAS MEDICINALES DEL NORDESTE ARGENTINO. I: ANÁLISIS MORFOTAXONÓMICO DE SUS COMUNIDADES FOLIARES

2019 ◽  
Vol 25 ◽  
Author(s):  
Gustavo Giusiano ◽  
Marinella Rodolfi ◽  
Magdalena Mangiaterra ◽  
Eduardo Piontelli ◽  
Anna Maria Picco
Keyword(s):  
Fusarium Oxysporum ◽  
Alternaria Alternata ◽  
Aureobasidium Pullulans ◽  
Fusarium Proliferatum ◽  
Cladosporium Cladosporioides ◽  
Curvularia Lunata ◽  
Sordaria Fimicola ◽  
Myrothecium Roridum

Se evaluó la presencia de hongos endófitos en hojas de dos plantas medicinales, Acanthospermum australe y Pterocaulon alopecuroides, utilizadas entre otras cosas para tratar infecciones cutáneas. El muestreo se realizó en el entorno rural de dos ciudades del nordeste argentino. Los especimenes fueron recogidos por aborígenes de la zona conocedores de su distribución ambiental. Los hongos se aislaron mediante la técnica de Bisseger et al., 1994 y se identificaron empleando caracteristicas morfofisiológicas. Considerando las dos plantas, se encontraron 40 morfoespecies, donde los taxa más frecuentes en Acanthospermum australe fueron: Alternaria alternata, Aureobasidium pullulans, Fusarium oxysporum, F. solani, Myrothecium roridum, Phoma spp. y Sordaria fimícola, y en Pterocaulon alopecuroides fueron: Alternaria alternata, Aureobasidium pullulans, Cladosporium cladosporioides, Curvularia lunata, Fusarium proliferatum y Myrothecium roridum. Estos taxas considerados como generalistas (o de múltiples hospedadores), presentan según la literatura específica analizada, alta producción de metabolitos secundarios bioactivos con potenciales capacidades terapéuticas antimicrobianas.

scholarly journals Redroot pigweed as a host for Alternaria alternata – the causal agent of Alternaria leaf blight in potato

2015 ◽  
Vol 102 (1) ◽  
pp. 115-118 ◽  
Author(s):  
Stanisław Mazur ◽  
Halina Kurzawińska ◽  
Małgorzata Nadziakiewicz ◽  
Jacek Nawrocki
Keyword(s):  
Alternaria Alternata ◽  
Leaf Blight ◽  
Causal Agent ◽  
Redroot Pigweed ◽  
Alternaria Leaf Blight

scholarly journals Micromycetes on Pisum sativum var. arvense

2014 ◽  
Vol 32 (1) ◽  
pp. 31-39
Author(s):  
Joanna Marcinkowska
Keyword(s):  
Pisum Sativum ◽  
Botrytis Cinerea ◽  
Sclerotinia Sclerotiorum ◽  
Alternaria Alternata ◽  
Agar Medium ◽  
Mycosphaerella Pinodes ◽  
Stemphylium Botryosum ◽  
Number Of Species ◽  
Fusarium Poae ◽  
The Common

Seeds of 11 Austrian winter pea genotypes, harvested at Radzików (CEP) in 1993 and 1994, were evaluated for fungi occurrence on Coon's agar medium in Petri plates. Number of species isolated depended on the genotype and year of collection. <i>Alternaria alternata, Stemphylium botryosum</i> were found on all the tested samples and <i>Phoma pinodella</i> and <i>Fusarium poae</i> were also common while <i>Botrytis cinerea, Sclerotinia sclerotiorum</i> and <i>Mycosphaerella pinodes</i> appeared to be common only in 1993. Three species occurred only once. The mycoflora was richer in 1993. The common seed inhabitants usually transmitted higher percentage of fungi than species occuring more seldom.

scholarly journals Fungi inhabiting healthy grapevine canes (Vitis spp.) in some nurseries

2012 ◽  
Vol 59 (2) ◽  
pp. 163-173 ◽  
Author(s):  
Ewa Król
Keyword(s):  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Present Experiment ◽  
Plant Material ◽  
Cladosporium Cladosporioides ◽  
The Other ◽  
Qualitative Composition ◽  
Vitis Spp ◽  
Propagation Material ◽  
Apparently Healthy

The purpose of this study, conducted in the years 2000 - 2002, was to identify fungi species colonizing apparently healthy canes and to investigate whether canes storage modify the quantitative and qualitative composition of these fungi. The plant material was collected from 5 commercial plantations growing in various regions of Poland, taking into consideration 8 cultivars which were the most frequently cultivated. From each plantation and cultivar 20 apparently healthy canes were randomly sampled in two terms: before storage - November/December (term I) and 3-4 months after storage - February/March (term II). The results showed that from asymptomatic canes 2746 isolates of fungi belonging to 23 species were obtained, but the majority of them origined from canes analysed after storage. It was found that <i>P. viticola</i> is able to live latently within grapevine tissue in Polish conditions because isolates of this fungus from visually healty canes the all studied plantations and terms were obtained. Among the other fungi species inhabiting grapevine canes <i>Alternaria alternata</i> and <i>Fusarium</i> spp. dominated. Moreover, both in term I and term II <i>Botrytis cinerea</i>, <i>Phoma</i> spp., <i>Epicoccum purpurascens</i> and <i>Cladosporium cladosporioides</i> were frequently isolated, whereas fungi from the genus <i>Acremonium</i> only in the term I. Each time isolates of <i>Trichoderma</i> spp. and <i>Gliocladium</i> spp. were also obtained. Inhabitation of grapevine canes by various fungi species shown in the present experiment indicate the danger of pathogens spread with propagation material on the new plantations.

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