Temat: heterobasidion annosum - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Tolerance of intersterility group isolates of Heterobasidion annosum to low pH and aluminium on solid medium
Autorzy:: Majewska, B
Werner, A.
Lakomy, P.
Powiązania:: https://bibliotekanauki.pl/articles/40967.pdf
Data publikacji:: 2004
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: plant pathogenic fungi
pathogenic fungi
root rot
Heterobasidion annosum
low pH
aluminium
tolerance
plant root
Opis:: Tolerance of several strains of the P-, S-, and F- intersterility groups of Heterobasidion annosum to low pH and high concentration of aluminium ions was studied on malt extract agar. There were marked intraspecific, but not intergroup, variations in tolerance to both factors. Some strains were relatively tolerant or sensitive to low pH and aluminium, while the others were tolerant to low pH but sensitive to Al. There was no relationship between tolerance of the strains to low pH and their tolerance to aluminium stress.
Źródło:: Dendrobiology; 2004, 51; 37-41
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Initial stages of host-pathogen interaction between Pinus sylvestris seedling roots and the P-, S- and F-intersterility group isolates of Heterobasidion annosum
Autorzy:: Werner, A
Lakomy, P.
Idzikowska, K.
Zadworny, M.
Powiązania:: https://bibliotekanauki.pl/articles/41681.pdf
Data publikacji:: 2005
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: Pinus sylvestris
seedling root
Heterobasidion annosum
host-pathogen interaction
adhesion
hyphal growth
penetration
root surface
Opis:: Prepenetration and penetration phenomena after inoculation of roots of Pinus sylvestris seedlings grown in vitro with the P-, S- and F-group isolates of Heterobasidion annosum were observed using scanning electron microscop. There were no differences in the behaviour of hyphae and in the appearence of mycelia formed by the three IS-group isolates. Four types of the root penetration by hyphae were observed. In the first, the entrace of hypha into root was achieved throught tiny pore formed in walls of the cortical cells. In the second, swellings resembling appressoria were formed by the hyphal tips at the points of contact with the root surface. In the third, the hyphae penetrated cells through holes in eroded areas of roots, and in the fourth by the natural crevices at points of the cortical cell junctions. It is concluded that the different frequencies of the four types of penetration observed after inoculation with isolates of the three IS group should be carefully explained in term of their different pathogenic and saprobic capabilities on pine.
Źródło:: Dendrobiology; 2005, 54; 57-63
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Wplyw porazenia przez Heterobasidion annosum wybranych drzewostanow sosnowych i swierkowych na powstanie wiatrolomow i wiatrowalow w 1999 i 2000 roku
Autorzy:: Lakomy, P.
Cieslak, R.
Rodak, W.
Kostrzewski, T.
Powiązania:: https://bibliotekanauki.pl/articles/819435.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: wiatrowaly
drzewostany sosnowe
wystepowanie
grzyby
czynniki chorobotworcze
wiatrolomy
drzewostany swierkowe
lesnictwo
Heterobasidion annosum
fitopatologia lesna
Źródło:: Sylwan; 2001, 145, 07; 43-54
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Early stage development of IS-group isolates of Heterobasidion annosum on Abies alba roots - scanning electron microscopical studies
Autorzy:: Werner, A
Lakomy, P.
Idzikowska, K.
Zadworny, M.
Powiązania:: https://bibliotekanauki.pl/articles/41782.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: Abies alba
root
Heterobasidion annosum
isolate
early stage
scanning electron microscopy
adhesion
hypha behaviour
root surface
Opis:: The growth of hyphae and prepenetration phenomena on Abies alba roots after inoculation with the P-, S- and F-group isolates of Heterobasidion annosum were observed using scanning electron microscope. Elongated hyphae emanating from the inocula grew indiscriminately across and along root tips and entered the cortical cells randomly, while in subapical root areas they quite often grew along grooves at points of cell junctions. The ridges, folds and depressions seen on the root surface obviously directed the hyphal growth and their further entrance into roots through natural crevices or cracks. Although hyphae of all the isolates could penetrate the roots directly through small openings, the hyphae of the F isolate penetrated preferably more eroded and older parts of roots. A peculiar habit of the direct penetration, characterized by formation a structure resembling infection peg, was observed only after inoculation with the P and S isolates. It is suggested that specifically frequent penetration the roots in eroded areas by the hyphae of the F isolate may be one of the factors connecting with its lower pathogenic capabilities.
Źródło:: Dendrobiology; 2006, 55; 57-63
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Accumulation of iron-binding compounds in root of Pinus sylvestris challenged by Heterobasidion annosum sensu lato
Autorzy:: Mucha, J.
Guzicka, M.
Lakomy, P.
Zadworny, M.
Powiązania:: https://bibliotekanauki.pl/articles/41731.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: accumulation
iron-binding compound
root
Pinus sylvestris
Heterobasidion annosum
siderophore
organic acid
iron reduction
plant infection
Scotch pine
Opis:: We examined the interaction between the roots of Pinus sylvestris and closely related species Heterobasidion annousum s.l. (H. annosum s.s., H. parviporum, H. abietinum) that differ in host plant preference. The aim of the current study was to determine in roots the accumulation pattern of low molecular mass compounds such as catecholate and hydroxamate derivates, oxalic acid as well as iron-reduction ability of that low molecular mass compounds, that play important roles in wood degradation and they are also involved in pathogenesis. The accumulation of catechol and hydroxamate derivates increased during the early (2–6 h) and late (24–48 h) stages of interaction and similar pattern of oxalic acid accumulation were observed. The level of catecholate derivates in P. sylvestris roots that were challenged with H. parviporum or H. abietinum correlated strongly with iron reducing ability. However, when host was exposed to H. annosum s. s. hydroxamates rather than catecholates regulated iron reducing ability. The extracellular Fe3+ reducing activity was greater for H. annosum s. s. isolates than for isolates of two other species, and reduction of ferric iron may promote oxidative burst in host cell and fungal colonization. Catecholate concentration in the presence of H. annosum s.s. contributing to host cell death, confirm iron involvement in infection success.
Źródło:: Dendrobiology; 2015, 73
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Typy intersterylne Heterobasidion annosum [Fr.]Bref. wystepujace w Lesnictwie Moronka, Nadlesnictwo Wegierska Gorka
Autorzy:: Lakomy, P.
Rubys, M.
Powiązania:: https://bibliotekanauki.pl/articles/823768.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: typy intersterylne
wystepowanie
grzyby
huba korzeni
Nadlesnictwo Wegierska Gorka
Polska
lesnictwo
typ S
Heterobasidion annosum
typ F
fitopatologia lesna
Źródło:: Sylwan; 1998, 142, 09; 5-11
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Host specialization of IS-group isolates of Heterobasidion annosum to Scots pine, Norway spruce and common fir in field inoculation experiments
Autorzy:: Werner, A
Lakomy, P.
Powiązania:: https://bibliotekanauki.pl/articles/41469.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: sapwood
Norway spruce
Scotch pine
host preference
Heterobasidion annosum
host tree
wounding method
vertical spread
intersterile group
common fir
host
Opis:: Two field inoculation experiments were conducted to study intraspecific variation in vertical spread of the P-, S- andF-IS-group isolates of Heterobasidion annosum in stems of Pinus sylvestris, Picea abies and Abies alba. Host-plants were inoculated with four isolates of each IS group after 10 mm long wounds made with a sterile knife (experiment 1) or 3 mm diameter radial holes made with a drill (experiment 2). On pine, the P-group isolates were more virulent than S andF isolates in terms of infection frequency, mortality rate andvertical spread in sapwood. The S isolates had higher incidence of infection and extensive growth on spruce than on pine. The F isolates were significantly less virulent on pine andspruce than on fir. Vertical spreadof all IS groups on fir was similar. In spite of between-strain-within-IS group variation in vertical spreadon each host, the study provided strong evidence for the occurrence of intraspecific differences in the host preference. In the interspecific analysis with three hosts, the isolates, IS groups andhost × strain andhost × IS group interactions accountedfor most of the explainedvariation, while host-plants accountedfor the smallest portion of the variance.
Źródło:: Dendrobiology; 2002, 47
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki