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Wyszukujesz frazę "Phytophthora cambivora" wg kryterium: Temat


Wyświetlanie 1-3 z 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
Artykuł
Tytuł:
Podatność polskich proweniencji i rodów dębu szypułkowego (Quercus robur L.) na zasiedlenie przez Phytophthora cambivora
Susceptibility of Polish provenances and families of pedunculate oak (Quercus robur L.) to colonization by Phytophthora cambivora
Autorzy:
Jankowiak, R.
Banach, J.
Balonek, A.
Powiązania:
https://bibliotekanauki.pl/articles/1339965.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
czynniki chorobotworcze
grzyby chorobotworcze
Phytophthora cambivora
dab szypulkowy
Quercus robur
proweniencje
rody hodowlane
podatnosc na grzyby
zmiennosc proweniencyjna
defense
family
provenances
resistance
shoot
susceptibility
Opis:
Phytophthora cambivora (Straminipila, Oomycota) causes root rot and stem canker on several deciduous tree species in Europe. However, very little is known about the variation in susceptibility to P. cambivora colonization among provenances and families of pedunculate oak (Quercus robur L.). We studied variation in susceptibility of one French and 16 Polish provenances, representing 62 families. Samples were taken from three test plots located in the Brzesko Forest District. Oak susceptibility to P. cambivora was assessed by measuring lesion length following inoculation of excised shoots with two isolates of P. cambivora. There was significant variability in susceptibility among the 17 provenances tested. The highest susceptibility to P. cambivora was apparent in several provenances including Tronçais, Zaporowo, Runowo, Opole, and Krotoszyn; while the most resistant provenances originated from Chojnów, Siedlce, Płock, Krotoszyn-90 and Wioska. There was also significant within-provenances variation in susceptibility to P. cambivora.
Źródło:
Leśne Prace Badawcze; 2013, 74, 2; 161-170
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie i ocena chorobotwórczości izolatów Phytophthora spp. uzyskanych z rzek i zbiornika wodnego
Occurrence of Phytophthora spp. in forest rivers and water pond and colonization of plants by isolates of that genera
Autorzy:
Orlikowski, L.B.
Ptaszek, M.
Trzewik, A.
Wierzchowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/972778.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
cieki wodne
rzeki
rzeka Korabiewka
rzeka Rawka
rzeka Skierniewka
rzeka Zwierzynka
zbiorniki wodne
wody stojace
izolaty grzybowe
grzyby chorobotworcze
Phytophthora
wykrywanie
Phytophthora plurivora
Phytophthora cambivora
Phytophthora citrophthora
Phytophthora megasperma
Phytophthora lacustris
chorobotworczosc
detection
rivers
water pond
colonization
plant
Opis:
Using of rhododendron leaf baits, Phytophthora cambivora, P. citrophthora, P. megasperma, P. plurivora and P. lacustris were detected from 4 rivers running through forests as well as in forest water pond. P. plurivora was the most often detected species from all water sources. The genera was detected all over the year with different population densities in relation to month and water source. Isolates of 4 Phytophthora species colonized roots, stem parts and leaves of tested plants. It points them as a potential pathogens for forest and landscape plants.
Źródło:
Sylwan; 2012, 156, 07; 533-541
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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