Temat: oomycetes - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Phytopythium leanoi sp. nov. and Phytopythium dogmae sp. nov., Phytopythium species associated with mangrove leaf litter from the Philippines
Autorzy:: Bennett, Reuel M.
Nam, Bora
Dedeles, Gina R.
Thines, Marco
Powiązania:: https://bibliotekanauki.pl/articles/952556.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: mangroves
oomycetes
peronosporaceae
phytopythium
Opis:: The genus Phytopythium is a monophyletic taxon of the Peronosporaceae with characteristics intermediate between Phytophthora and Pythium. In the Philippines, reports of Phytopythium are scarce, with the mangrove-swamp-inhabiting species Phytopythium kandeliae being the only species recorded to date. It was the aim of the current study to investigate the diversity of Phytopythium in mangrove habitats in more detail. Based on culture characteristics, morphology, and molecular phylogenetic position, two new species of Phytopythium are described from Philippine mangroves, P. leanoi USTCMS 4102 and P. dogmae USTCMS 4101. Phytopythium leanoi is a species morphologically similar to P. kandeliae, but with the ability to develop gametangia in a homothallic fashion. The other new species, P. dogmae, is characterized by having a short discharge tube, semipapillate to papillate sporangia and frequently exhibiting a clustering of two sporangia per sporangiogenic hypha. With the addition of the two species described in this study, the genus Phytopythium has grown from around 10 to beyond 20 recognized species over the past decade, and it seems likely that several more species of this genus await discovery.
Źródło:: Acta Mycologica; 2017, 52, 2
0001-625X
2353-074X
Pojawia się w:: Acta Mycologica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Phytopythium: origin, differences and meaning in modern plant pathology
Autorzy:: Tkaczyk, Miłosz
Powiązania:: https://bibliotekanauki.pl/articles/2041529.pdf
Data publikacji:: 2020
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: Phytophthora
Pythium
Phytopythium
Oomycetes
host
disease symptoms
Opis:: The genus Phytopythium is a relatively new group of organisms distinguished from the Pythium genus. These are organisms closely related to Pythium and Phytophthora, with similar structure and biology. Despite many similarities, this genus is characterised by several morphological features that allow it to be easily identified. Until now, more than 20 species belong to this genus, most of which are saprophytic organisms. However, there is also a group of species particularly dangerous to plants. These species include, among others, Pp. litorale, Pp. helicoides and Pp. vexans. The purpose of this work was to collect information about these organisms and present them in a condensed form. The study contains basic information about the history of the type of separation, differences in morphology distinctive genus of Phytopythium, Phytophthora and Pythium and information about diseases and host plants. Information is also provided on the potential threat posed by these organisms to forest ecosystems.
Źródło:: Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 3; 227-232
0071-6677
Pojawia się w:: Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Patogenne lęgniowce z rodzaju Phytophthora - nowe zagrożenie lasów w Europie
Pathogenic oomycetes of Phytophthora genus - a new threat to forests in Europe
Autorzy:: Ajchler, M.
Łobocka, M.
Oszako, T.
Powiązania:: https://bibliotekanauki.pl/articles/986789.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
fitopatologia lesna
zagrozenia drzewostanow
czynniki chorobotworcze
legniowce
Oomycetes
Phytophthora
fytoftoroza
identyfikacja
epidemiologia
Phytophthora alni
Phytophthora cactorum
Phytophthora cambivora
Phytophthora cinnamomi
Phytophthora citrophthora
Phytophthora quercina
Phytophthora plurivora
Phytophthora ramorum
ochrona lasu
zwalczanie chorob roslin
oomycetes
phytophthora
molecular typing
plant pathogens
biocontrol
Opis:: Pathogenic oomycetes represented mainly by the species of Phytophthora genus are among the most dangerous plant pathogens. They pose a serious threat for agricultural as well as wild plants, and are involved in forest decline worldwide. Over 140 pathogenic Phytophthora species have been identified so far. The common infection symptoms include rotting of below− and above− ground parts of plants, causing weakness and slow decline of infected trees. The economic losses caused by certain Phytophthora species may rich even 100%. Globalization and border opening have facilitated the transport of plant material between countries and continents, thus increased the risk of transfer of various Phytophthora genus representatives to new geographical locations. Global warming (e.g. mild winters) have facilitated the expansion of species from southern to northern Europe. Among Polish Phytophthora isolates are species that have previously been known only in nurseries (e.g. P. cactorum), but nowadays they are also isolated from forests (e.g. oak stand in the Krotoszyn Plateau). It suggests the pathway from nurseries to stands with plant for plantings and attached soil. There are also new species, that have not been isolated so far in the world (P. polonica) or found far away from Poland (P. fragaliaefolia in Japan on strawberry). The possible natural pathways are birds and water courses. In Mazowsze and Wielkopolska regions (C and W Poland) the polyphagous P. cinnamomi was found on pedunculate oaks (Quercus robur). This species causes significant damage to red oak forest in France, but also threats Jarrah forests in the Australian ecosystem (it attacks ca. 1000 species of plants). Fortunately, in addition to time consuming and laborious classic methods of Phytophthora identification, based on morphology and physiological properties, molecular methods that are based on immunological tests and chromosomal or mito− chondrial DNA markers identification have come into common use. Despite morphological similarity to true fungi, oomycetes are more closely related to diatoms and brown algae, and have several structural features that differentiate them from fungi, including the cell wall composed of cellulose instead of chitin. That is one of the reasons that fungicides have a limited use in the fight with Phytophthora infections. Additionally, type of ecological niches that are settled by pathogenic oomycetes (root remnants in soil, watercourses) hinders the chemical combating. Biocontrol, i.e. the use of interspecies interactions between microorganisms (bacteria, fungi) to limit the growth and development of pathogens, seems to be a reasonable alternative.
Źródło:: Sylwan; 2017, 161, 10; 870-880
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Biophoton emission as a tool to study interactions of pathogen elicitors with plant cells
Autorzy:: Moricova, P.
Piterkova, J.
Lochman, J.
Luhova, L.
Ilik, P.
Kasparovsky, T.
Petrivalsky, M.
Powiązania:: https://bibliotekanauki.pl/articles/80283.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
extracellular protein
Oomycetes
biophoton
hypersensitive response
Solanaceae
Brassicaceae
plant cell
reactive oxygen species
oxidative reaction
lipid peroxidation
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Multipleksowa detekcja gatunków Phytophthora przy użyciu platformy Fluidigm
Multiplex detection of Phytophthora spp. using the Fluidigm platform
Autorzy:: Sikora, K.
Oszako, T.
Kubiak, K.
Nowakowska, J.A.
Malewski, T.
Powiązania:: https://bibliotekanauki.pl/articles/2142612.pdf
Data publikacji:: 2020
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: forest soil
oomycetes
oak dieback
pathogens
next generation sequencing
gleby leśne
oomycety
zamieranie dębów
patogeny
sekwencjonowanie nowej generacji
Opis:: The genus Phytophthora plays an important role not only in agriculture but also in forest ecosystems. As the number of known Phytophthora species continues to grow, identifying new isolates in this genus has become increasingly challenging even by DNA sequencing. Therefore, the development of proper techniques for detection and identification is crucial for monitoring and control of these pathogens in the forestry sector. In recent years, new molecular methods using innovative approaches have indeed been developed. However, the majority of these methods was designed to detect single Phytophthora species. Techniques that are able to target multiple species would offer advantages, especially for the assessment of Phytophthora diversity in the environment. This paper describes a multiplex assay for the identification of eight Phytophthora isolates, down to the species level, based on a Fluidigm platform employing pyrosequencing. The obtained results showed that for an accurate determination of the species, it is sufficient to know the sequence of two markers, ITS and COX1. The sensitivity of this test is sufficient to identify Phytophthora in a pure culture. Unfortunately, analysis based on a pyrosequencing platform does not provide enough data to simultaneous identify multiple Phytophthora species in samples collected in the field. This problem could be resolved in the future by sequencing using more efficient platforms like Illumina or IonTorrent.
Źródło:: Leśne Prace Badawcze; 2020, 81, 4; 161-166
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Wpływ Bacillus subtilis i Trichoderma asperellum na rozwój sadzonek brzóz zainfekowanych patogenem drobnych korzeni Phytophthora plurivora
Influence of Bacillus subtilis and Trichoderma asperellum on the development of birch seedlings infected with fine root pathogen Phytophthora plurivora
Autorzy:: Oszako, T.
Żółciak, A.
Tulik, M.
Tkaczyk, M.
Stocki, M.
Nowakowska, J.A.
Powiązania:: https://bibliotekanauki.pl/articles/985763.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: lesnictwo
fitopatologia lesna
brzoza brodawkowata
Betula pendula
sadzonki
fytoftoroza
Phytophthora plurivora
rozwoj roslin
grzyby antagonistyczne
Trichoderma asperellum
bakterie antagonistyczne
Bacillus subtilis
oomycetes
bacterium
fungus
interactions
betula pendula
Opis:: Phytophthora pathogens cannot be controlled with well−known fungicides, because as oomycetes they do not synthesize chitin and ergosterol. Phytopathogenic microorganisms of Phytophthora genus offers an alternative to pesticides. The aim of the study was to understand the interactions among the host silver birch (Betula pendula), a common forest tree species in Polish lowlands and in lower mountain locations, and its primary pathogen Phytophthora plurivora as well as potential Biological Control Agents Bacillus subtilis and Trichoderma asperellum. The 2−year−old silver birch seedlings were selected for this experiment. Interactions between P. plurivora and B. subtilis, producing peptide antibiotics including polymyxin B and subtiline, stimulated growth of birch seedlings. Comparing to the control a stimulation of both height and root collar diameter of plants was observed when B. subtilis was added into the soil of pots. It is a saprophyte, decomposing organic compounds of plant origin. However, the application of bacterium into the rhizosphere soil stimulated more shoots growth than roots. The application of T. asperellum into the soil stimulated development of roots, and in consequences the above−ground parts of plants. However, in the combination with pathogen, T. asperellum protected the roots only partially. The presence of pathogen and its antagonists increases the biomass of birches compared to control plants. Chlorophyll fluorescence studies proved better parameters like total performance index (PI total) after application of B. subtilis, in contrast, interaction between B. subtilis and P. plurivora negatively affected photosynthesis causing weakening of plants. The higher content of carboxylic acids, observed in the variant with T. asperellum + P. plurivora, indicates the initiation of biochemical defence processes in birch leaves cells.
Źródło:: Sylwan; 2019, 163, 12; 1006-1015
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Monitorowanie chorób wywołanych przez patogeniczne lęgniowce za pomocą analiz DNA
Monitoring of diseases caused by pathogenic oomycetes using DNA analysis
Autorzy:: Nevoigt, F.
Oszako, T.
Nowakowska, J.A.
Powiązania:: https://bibliotekanauki.pl/articles/1008933.pdf
Data publikacji:: 2010
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: fitopatologia
czynniki chorobotworcze
grzyby
legniowce
Oomycetes
choroby grzybowe
monitoring
Phytophthora
Pythium
diagnostyka molekularna
analiza DNA
metoda real time PCR
phytophthora spp.
real time pcr
its−dna molecular diagnostics
baiting
rhododendrons
Opis:: Phytophthora species are best known as pathogens of agricultural crops (e.g. P. infestans), but there are also invasive pathogens destroying forest atands (e.g. P. ramorum in the USA) or even whole forest ecosystems (e.g. P. cinnamomi in Australia). Still, little is known about indiginous species, especially in wild ecosystems. Rhododendrons are well known as a reservuar for oomycetes’ development. The main objectives of the present study were to develop the new tool for the identification of pathogenic Phytophthora and Phytium based on DNA sequence analysis of the ITS1, 5.8S gene and ITS2 region. Rhododendrons leaves served as specific plant baits. In order to reach the goal the real time PCR, the nested PCR and the DNA sequencing of the rDNA ITS region were carried out. The genomic DNA was extracted form the symptomatic rhododendron leaves. Three distinct Oomycetes species: Phytophthora cactorum, Pythium mercuriale and em>Pythium recalcitrans were detected in rhododendron leaves and registered in GenBank.
Źródło:: Sylwan; 2010, 154, 07; 450-455
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Możliwości biologicznej ochrony roślin przed chorobami w szkółkarstwie, ze szczególnym uwzględnieniem lęgniowców (Oomycetes) i grzybów z rodzaju Fusarium
The possibilities of biologically protecting plants against diseases in nurseries, with special consideration of Oomycetes and Fusarium fungi
Autorzy:: Okorski, A.
Oszako, T.
Nowakowska, J.A.
Pszczółkowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/1312848.pdf
Data publikacji:: 2014
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: lesnictwo
szkolkarstwo lesne
ochrona lasu
ochrona roslin
szkolki lesne
czynniki chorobotworcze
legniowce
Oomycetes
Phytophthora
Phytium
Fusarium
biologiczne metody ochrony roslin
organizmy antagonistyczne
zwalczanie chorob roslin
forest protection
forest nurseries
biological control
Opis:: Achieving high quality propagative material is difficult today due to the limited number of pesticides recommended for use. Simultaneously, EU regulations on Integrated Pest Management (IPM) in forest nurseries came into a force, requiring a search for alternative plant protection methods that are safe for humans, animals and the environment. In this paper, we present the possibilities of using bio-fungicides against diseases in forest nurseries, their mechanisms of action, as well as the direction of their development (according to IPM rules). We reviewed the results achieved by different research teams presenting the possibilities and trends in combatting Oomycetes and Fusarium spp. pathogens currently having the most important economic impact.
Źródło:: Leśne Prace Badawcze; 2014, 75, 3; 301-321
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki