scholarly journals Fungi settling seedlings of Stewartia pseudocamelia (Max.)

2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 319-321
Author(s):  
I. Gajda ◽  
H. Kurzawińska ◽  
P. Muras
Keyword(s):  
Rhizoctonia Solani ◽  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Phytophthora Cinnamomi ◽  
Vegetation Period ◽  
Cladosporium Cladosporioides ◽  
Fusarium Avenaceum ◽  
Autumn Season ◽  
Total Community ◽  
Penicillium Spp

Stewartia pseudocamelia is one of more attractive of ornamental bushes. The main of decorative quality are: ornamental flowers, non-typical florescence (from end of June to August), original bark and attractive overcolouring of leaves in autumn season. Apart diseases affected Stewartia during vegetation period, the most dangerous are those which infest seedlings. The total number of 132 colonies of fungi were obtained from the sore seedlings of Stewartia. The isolates represented 19 species of thirteen genera. The most dominated of them were fungi of species: Cladosporium cladosporioides, Cylindrocarpon radicicola, Fusarium avenaceum and F. oxysporum. These above-mentioned fungi together with: Phytophthora cinnamomi, Botrytis cinerea, Penicillium spp., Alternaria alternata, Rhizoctonia solani and Pythium debaryanum belonged to the group of dominants and consistued 79.02% of total community.

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.

scholarly journals Fungi and fungi-like Oomycetes isolated from affected leaves of rhododendron

2013 ◽  
Vol 43 (1) ◽  
pp. 21-27
Author(s):  
Maria Kowalik
Keyword(s):  
Aspergillus Niger ◽  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Phytophthora Cinnamomi ◽  
Green Areas ◽  
Sordaria Fimicola

The aim of the work is to identify fungi and fungi-like Oomycetes occurring on affected leaves of rhododendron <em>Rhododendron</em> L. Mycological analyses were carried out on 200 leaves collected from green areas of Kraków from May till September 2005. Isolated fungi-like Oomycetes belonged to 67 taxa. The most frequently found fungi included: <em>Alternaria alternata, Aspergillus niger, Botrytis cinerea, Coelophoma empetri, Nigrospora sphaerica, Pestalotia sydowiana, Phialophora cyclaminis, Phomopsis archeri, Septoria azalea</em> and <em>Sordaria fimicola</em>. Among fungi-like organisms <em>Phytophthora cinnamomi</em> and <em>P. citricola</em> were isolated.

scholarly journals Mycoflora of Calendula officinalis L. seeds

2013 ◽  
Vol 44 (1-2) ◽  
pp. 49-53
Author(s):  
Danuta Pięta
Keyword(s):  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Agar Medium ◽  
Fusarium Culmorum ◽  
Fusarium Avenaceum ◽  
Calendula Officinalis ◽  
Calendula Officinalis L

The seeds of <i>Calendula offlcinalis</i> harvested in the years 1985-1987 were investigated. Agar medium with nitrients was used to isolate the fungi. As a result of the mycological analysis, 3642 isolates belonglng to 23 species and dark unsporulating mycelium were obtained. <i>Alternaria alternata</i> dominated among the isolated fungi. Moreover, <i>Botrytis cinerea, Fusarium culmorum, Fusarium avenaceum</i> and <i>Sclerotinia sc1erotiorum</i> were obtained from the seeds.

scholarly journals Unintentional transport of fungi propagules to Antarctic biome and the ability to develop at low temperatures

2020 ◽  
Vol 18 (5) ◽  
pp. 271-281
Author(s):  
Anna Augustyniuk-Kram
Keyword(s):  
Botrytis Cinerea ◽  
Filamentous Fungi ◽  
Aspergillus Flavus ◽  
Alternaria Alternata ◽  
Low Temperatures ◽  
Trichoderma Viride ◽  
Geotrichum Candidum ◽  
Cladosporium Cladosporioides ◽  
Freezing And Thawing ◽  
Penicillium Sp

Filamentous fungi relatively easily disperse and colonize a variety of substrates, inhabiting various, often extreme environments. Therefore, they spread all over the world. The purpose of the research was to determine whether the propagules of filamentous fungi brought (accidentally transported) into the Antarctic biome by tourists and members of scientific expeditions are capable of developing at low temperatures. In the studies were used seven isolates of fungi: Penicillium sp., Aspergillus flavus, Alternaria alternata, Cladosporium cladosporioides, Trichoderma viride, Geotrichum candidum and Botrytis cinerea. The isolates came from samples collected from tourists and members of scientific expeditions arriving at the Henryk Arctowski Polish Antarctic Station on King George Island in the South Shetland archipelago. Fungal growth was measured at 0, 5, 10, 22°C (as a control) and 10° C, but after having frozen inoculum at -15°C for a period of 7 days. Penicillium sp., Alternaria alternata, Cladosporium cladosporioides, Trichoderma viride, Geotrichum candidum and Botrytis cinerea were found to be capable of growing at low temperatures (5 and 10oC as well as after one freezing cycle, down to -15oC and thawing, up to +10oC). They did not produce a macroscopically visible mycelium at temp. 0oC, however, it was not a lethal temperature for them, as when they were transferred to higher temperatures, they continued to develop even after a fairly long time following the beginning of the experiment. The most vulnerable was Aspergillus flavus. At lower temperatures (from about to 5oC) it did not develop, while freezing and thawing were lethal for this species. Some species (G. candidum, T. viride and B. cinerea), despite the development of mycelium, did not produce spores at lower temperatures.

scholarly journals Fungi isolated from Stewartia pseudocamellia Max. seeds and their pathogenesis

2012 ◽  
Vol 58 (2) ◽  
pp. 255-262
Author(s):  
Halina Kurzawińska ◽  
Piotr Muras
Keyword(s):  
Laboratory Experiment ◽  
Rhizoctonia Solani ◽  
Fusarium Oxysporum ◽  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Typical Composition

The aim of studies was to determine typical composition of fungi occurring on seeds of <i>Stewartia pseudocamellia</i>.The studies conducted on 100 disinfected and 100 nondisinfected seeds of these plants.Isolates of <i>Alternaria alternata</i>, <i>Fusarium oxysporum</i>, <i>Cylindrocarpon radicicola</i> and <i>Rhizoctonia solani</i> were characterized by pathogenicity towards the investigated <i>Stewartia pseudocamellia</i>. In the laboratory experiment, 204 isolations of microorganisms were obtained that belonged to 20 species and form of fungi and bacteria. Among fungi there were both of parasite (<i>Alternaria alternata</i>, <i>Botrytis cinerea</i>, <i>Fusarium</i> spp., <i>Rhizoctonia solani</i>) and typical saprophytic (<i>Cladosporium</i> spp., <i>Penicillium</i> spp., <i>Aspergillus</i> spp., <i>Epicoccum</i> spp., <i>Mucor</i> spp.). The dominant fungus on seeds was <i>Alternaria alternata</i>. Among the investigated isolates only one isolate (R4) <i>Rhizoctonia solani</i>, was strongly pathogenic, isolates (A1) <i>Alternaria alternata</i> were weakly pathogenic to seedlings of <i>Stewartia pseudocamellia</i>.

scholarly journals Fungal diseases of chickpea (Cicer arietinum L.) cultivated in the south region of Poland

2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 332-335
Author(s):  
S. Mazur ◽  
J. Nawrocki ◽  
J. Kućmierz
Keyword(s):  
Rhizoctonia Solani ◽  
Botrytis Cinerea ◽  
Cicer Arietinum ◽  
Weather Conditions ◽  
Fusarium Avenaceum ◽  
First Year ◽  
Cicer Arietinum L ◽  
Genus Fusarium ◽  
Alternaria Sp ◽  
Second Year

The investigations carried out in the last years showed that weather conditions were conductive to growth of chickpea (Cicer arietinum L.) in Poland. Our experiments started since 2000 on two cultivars Myles and Sanford. Evans replaced cv. Sanford in second year. The results pointed to the cv. Myles as generally healthiest and the percentage of infested plants was 3.2% in the first year and 0.92% in the next year. The experiment showed that the most important threats for plants during vegetation season were fungi from the genus Fusarium and Rhizoctonia solani, isolated most often from roots. The basal parts of the stems affected mainly Alternaria genus. Botrytis cinerea, Fusarium avenaceum and Alternaria sp. attack most frequently pods and seeds.

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 Fungi colonizing various organs of lemon balm (Melissa officinalis L.) cultivated in South-East Poland

2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 347-350 ◽  
Author(s):  
Z. Machowicz-Stefaniak ◽  
E. Zalewska ◽  
B. Zimowska
Keyword(s):  
Rhizoctonia Solani ◽  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Fungal Diseases ◽  
Mineral Medium ◽  
Melissa Officinalis ◽  
Lemon Balm ◽  
One Year ◽  
Made In

On one-year-old and two-year-old plantations of lemon balm observations on the occurrence of plants showing symptoms of fungal diseases were made in 1998–2001. Many fungi were isolated from roots, stem bases and leaves separately on mineral medium. Species of Fusarium, Phoma and Rhizoctonia solani were obtained from the roots and stem bases whereas Alternaria alternata, Phoma spp., Septoria melissae and Botrytis cinerea were most often isolated from the leaves showing symptoms of necrosis.

scholarly journals Niezamierzony transport propaguli grzybów pleśniowych do biomu Antarktyki a zdolność rozwoju w niskich temperaturach

2016 ◽  
Vol 14 (4) ◽  
pp. 149-166
Author(s):  
Anna Augustyniuk-Kram
Keyword(s):  
Botrytis Cinerea ◽  
Aspergillus Flavus ◽  
Alternaria Alternata ◽  
Trichoderma Viride ◽  
Geotrichum Candidum ◽  
Cladosporium Cladosporioides ◽  
Penicillium Sp

Obecność człowieka w Antarktyce to przede wszystkim działalność naukowa, ale również w ostatnim czasie wzmożony ruch turystyczny. Sprzyja to inwazji obcych gatunków flory i fauny, a także mikroorganizmów, mogących zagrażać gatunkom rodzimym. Grzyby pleśniowe będące przedmiotem badań zaliczane są do organizmów kosmopolitycznych, łatwo rozprzestrzeniających się i zasiedlających różnorodne środowiska, w tym również ekstremalnie zimne, takie jak rejony polarne. Organizmy te, by skutecznie skolonizować nowe środowisko oprócz żywotnych propagul i skutecznych mechanizmów transportu muszą być zdolne do wzrostu i reprodukcji w ekstremalnych warunkach. Celem badań było określenie czy propagule grzybów pleśniowych zawleczone (przypadkowo przetransportowane) do biomu Antarktyki przez turystów i członków wypraw naukowych są zdolne do rozwoju w niskich temperaturach. Stwierdzono, że Penicillium sp., Alternaria alternata, Cladosporium cladosporioides, Trichoderma viride, Geotrichum candidum i Botrytis cinerea były zdolne do rozwoju w niskich temperaturach (5 i 10oC oraz po jednym cyklu zamrożenia do -15oC i odmrożenia do +10oC). Nie wytwarzały one makroskopowo widocznej grzybni w temp. 0oC, lecz nie była to dla nich temperatura letalna, ponieważ po przeniesieniu do wyższych temperatur podejmowały wzrost nawet po dosyć długim czasie od rozpoczęcia eksperymentu. Najbardziej wrażliwy okazał się Aspergillus flavus. Przy niższych temperaturach (od 0 do 5oC) nie rozwijał się, natomiast zamrożenie i odmrożenie było dla tego gatunku letalne. Niektóre gatunki (G. candidum, T. viride i B. cinerea) mimo rozwoju grzybni, w niższych temperaturach nie produkowały zarodników.

scholarly journals Airborne fungus at Pavia (Italy)

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
G. Caretta ◽  
A. Crippa ◽  
P. Della Franca ◽  
G. Del Frate ◽  
M. Guglielminetii ◽  
...  
Keyword(s):  
Aspergillus Fumigatus ◽  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Rhodotorula Glutinis ◽  
Cladosporium Cladosporioides ◽  
Penicillium Janthinellum ◽  
Airborne Fungus ◽  
Sporobolomyces Roseus

Entre el 1º de Febrero de 1979 al 28 de Febrero de 1980, fueron expuestas en Pavia, 3 veces por semana, tres placas de petri de 16 cm de diam. conteniendo PDA. Se aislaron un total de 12.734 colonias (pertenecientes a 46 géneros y 88 especies).Muchos de los aislamientos (54,6%), fueron especies de los géneros Cladosporium (13,4%), Epicoccum (11,7%), Aureobasidium (9,3%), Alternaría (7,9%), Penicillium (6,4%) y Botrytis (5,9%).Alternarla, Cladosporium y Epicoccum, aumentan en el Verano avanzado y en los inicios de Otoño. Aureobasidium, Aspergillus y Penicillium son frecuentes en invierno; Botrytis, es abundante en Primavera. Las especies dominantes aisladas fueron: Alternaria alternata, A. longipes, Aspergillus fumigatus, A.niger y A. flavus, Ameobasidium pullulans var. pullulans, Botrytis cinerea, Cladosporium cladosporioides, Epicoccum purpurascens, Penicillium janthinellum. Las especies de Fusarium roseum var. gibbosum (= F. equiseti), Phoma destructiva, Rhodotorula glutinis y Sporobolomyces roseus fueron también numerosas.

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