Wyniki wyszukiwania

1

Mitochondria during androgenesis in Hordeum vulgare

100%

Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

1981

|

tom 50

|

nr 3

2

Preliminary research on lead absorption and translocation in root tip cells of Populus nigra "Italica" Moench

100%

Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

1988

|

tom 57

|

nr 2

3

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Morphological and anatomical structure of generative organs of Salsola kali ssp. ruthenica [Iljin] Soo at the SEM level

100%

Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

2005

|

tom 74

|

nr 2

The morphology and anatomy of generative organs of Salsola kali ssp. ruthenica was examined in detail using the light (LM) and scanning electron microscopy (SEM). The whole flowers, fruits and their parts (pistil, stamens, sepals, embryo, seed) were observed in different developmental stages. In the first stage (June), flower buds were closed. In the second stage (August), flowers were ready for pollination/fertilization. In the third stage (September), fruits were mature. Additionally, the anatomical and morphological structure of sepals was observed by means of LM and SEM. Thanks to the transverse and longitudinal semi-sections through sepals, the first phase of wing formation was recorded by SEM. The appearance of stomata in the epidermal cells of sepals above the forming wings was very interesting, too. The stomata were observed also in mature fruits.

4

The effect of lead on the ultrastructure of root tip cells in Pinus sylvestris L. seedlings

100%

Idzikowska K.

Bulletin de la Societe des Amis des Sciences et des Lettres de Poznan. Seria D: Science Biologiques

|

1994

|

tom 30

5

The ultrastructure of anther wall and pollen of Hordeum vulgare at the microspore stage

63%

Mlodzianowski F., Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

1978

|

tom 47

|

nr 3

6

Fine structure ot the protonema in the moss Ceratodon purpureus and its response to a cytokinin

63%

Idzikowska K., Szweykowska A.

Acta Societatis Botanicorum Poloniae

|

1978

|

tom 47

|

nr 1-2

7

Ultrastructural aspects of chromatin elimination in hybrid embryos of Hordeum

63%

Idzikowska K., Mlodzianowski F.

Acta Societatis Botanicorum Poloniae

|

1983

|

tom 52

|

nr 3-4

8

Fine structure of plastids during androgenesis in Hordeum vulgare L.

63%

Mlodzianowski F., Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

1980

|

tom 49

|

nr 3

9

Cell wall formation in multinacleate pollen grains of Hordeum vulgare anthers cultured in vitro

63%

Idzikowska K., Mlodzianowski F.

Acta Societatis Botanicorum Poloniae

|

1979

|

tom 48

|

nr 3

10

Host-pathogen interactions between Scots pine seedlings [Pinus sylvestris L.] and the P-strains of Heterobasidion annosum [Fr.] Bref. in pure culture

63%

Werner A., Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

2001

|

tom 70

|

nr 2

11

Occurrence of endospores within conidia and hyphal cells of morphologically atypical isolates of Ophiostoma querci> [Georg.] Nannf.

63%

Przybyl K., Idzikowska K.

Acta Mycologica

|

1995

|

tom 30

|

nr 2

12

Morphological differentiation of Primula veris L. pollen from natural and cultivated populations

63%

Morozowska M., Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

2004

|

tom 73

|

nr 3

Micromorphological characterisation and the comparative statistical analysis of the size of Primula veris L. pollen grains collected in three natural and three cultivated populations were done. Observations were carried out with SEM. The obtained measurements were analysed with the use of one-way ANOVA, Kruskal-Wallis Test and the Student-t Test. Pollen grains from long-styled ('pin') flower-morphs were mainly 6 colpate and from shortstyled ('thrum') flower-morphs 8 colpate. Colpi of some grains from 'thrum' flowers were 'sinuous' and 'circular', and they incised into the apocolpium zone. Ornamentation of 'pin' pollen grains was microreticulate, with lumina up to 0.8 μm wide, and for pollen grains from 'thrum' flowers was reticulate and eureticulate with lumina 1.1-1.7 μm wide. In lumina of mesocolpium area some free columellae were observed. Pollen grains from 'thrum' flower-morphs were more variable in size, both in natural and in cultivated populations, than grains from 'pin' flower-morphs. The differences in mean length (P) and breadth (E) of pollen grains from 'thrum' flowers collected in cultivated populations were statistically important (FP = 3.154 for the critical F005 = 3.098; K-We = 7.469 for the critical Test value α=005 = 5.991). Pollen grains from 'thrum' flowers were bigger when coming from plants growing in natural populations (tE = 2.784 for the critical Test value α=005 = 2.001).

13

Ultrastructure of conidia and hyphal cells of Ophiostoma querci isolates with respect to their ageing

63%

Przybyl K., Idzikowska K.

Acta Mycologica

|

1997

|

tom 32

|

nr 1

14

Ultrastructural changes in chloroplasts of mesophyll cells of chlorotic and prematurely yellowed leaves of Betula pendula Rothr.

63%

Przybyl K., Idzikowska K.

Acta Societatis Botanicorum Poloniae

|

2003

|

tom 72

|

nr 4

The ultrastructure of chloroplasts was studied in mesophyll cells of the leaves of silver birch (Betula pendula) showing interveinal chlorosis or premature yellowing, in comparison with leaves without symptoms or exhibiting symptoms of natural senescence. The leaves were collected between May 26 to June 7 and additionally in the September 10-12 from the upper part of the crown, from increments of the past four years. No major difference in ultrastructure of chloroplasts was found between spongy and palisade mesophyll cells. The following senescencerelated changes were observed in chloroplasts of prematurely yellowed leaves and showing inteveinal chlorosis: reduced chloroplast size, degeneration of the membrane systems of thylakoids and increased electron density of plastoglobuli. The most electron dark globules (lipid droplets) were found together with starch grains in cells of spongy mesophyll of leaves showing interveinal chlorosis. Abnormal, spherical and rounded chloroplasts with electron-dark inside of thylakoids or the electron-dark stroma between thylakoids were found only in yellowed and chlorotic leaves in spring.

15

Examples of cell defence mechanisms in reaction to lead presence as shown by the X-ray microanalysis method

51%

Somardakiewicz S., Idzikowska K., Wozny A.

Acta Physiologiae Plantarum

|

1998

|

tom 20

|

nr 1 suppl.

16

Initial stages of host-pathogen interaction between Pinus sylvestris seedling roots and the P-, S- and F-intersterility group isolates of Heterobasidion annosum

51%

Werner A., Lakomy P., Idzikowska K., Zadworny M.

Dendrobiology

|

2005

|

tom 54

57-63

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.

17

Comparison of the observations done on needles of chosen clones of Pinus silvestris L. showing different susceptibility to air pollutants emitted by the copper works

51%

Wozny A., Idzikowska K., Nowak U., Ksiazek M.

Folia Histochemica et Cytobiologica

|

1991

|

tom 29

|

nr 4

18

Early stage development of IS-group isolates of Heterobasidion annosum on Abies alba roots - scanning electron microscopical studies

51%

Werner A., Lakomy P., Idzikowska K., Zadworny M.

Dendrobiology

|

2006

|

tom 55

57-63

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.

19

Pollen dimorphism and androgenesis in Hordeum vulgare

51%

Idzikowska K., Ponitka A., Mlodzianowski F.

Acta Societatis Botanicorum Poloniae

|

1982

|

tom 51

|

nr 2

20

Mikoryza ektendotroficzna sosny zwyczajnej [Pinus sylvestris L.]

51%

Werner A., Idzikowska K., Napierala-Filipiak A.

Sylwan

|

2000

|

tom 144

|

nr 04

53-67

Ograniczanie wyników

Mitochondria during androgenesis in Hordeum vulgare

Preliminary research on lead absorption and translocation in root tip cells of Populus nigra "Italica" Moench

Morphological and anatomical structure of generative organs of Salsola kali ssp. ruthenica [Iljin] Soo at the SEM level

The effect of lead on the ultrastructure of root tip cells in Pinus sylvestris L. seedlings

The ultrastructure of anther wall and pollen of Hordeum vulgare at the microspore stage

Fine structure ot the protonema in the moss Ceratodon purpureus and its response to a cytokinin

Ultrastructural aspects of chromatin elimination in hybrid embryos of Hordeum

Fine structure of plastids during androgenesis in Hordeum vulgare L.

Cell wall formation in multinacleate pollen grains of Hordeum vulgare anthers cultured in vitro

Host-pathogen interactions between Scots pine seedlings [Pinus sylvestris L.] and the P-strains of Heterobasidion annosum [Fr.] Bref. in pure culture

Occurrence of endospores within conidia and hyphal cells of morphologically atypical isolates of Ophiostoma querci> [Georg.] Nannf.

Morphological differentiation of Primula veris L. pollen from natural and cultivated populations

Ultrastructure of conidia and hyphal cells of Ophiostoma querci isolates with respect to their ageing

Ultrastructural changes in chloroplasts of mesophyll cells of chlorotic and prematurely yellowed leaves of Betula pendula Rothr.

Examples of cell defence mechanisms in reaction to lead presence as shown by the X-ray microanalysis method

Initial stages of host-pathogen interaction between Pinus sylvestris seedling roots and the P-, S- and F-intersterility group isolates of Heterobasidion annosum

Comparison of the observations done on needles of chosen clones of Pinus silvestris L. showing different susceptibility to air pollutants emitted by the copper works

Early stage development of IS-group isolates of Heterobasidion annosum on Abies alba roots - scanning electron microscopical studies

Pollen dimorphism and androgenesis in Hordeum vulgare

Mikoryza ektendotroficzna sosny zwyczajnej [Pinus sylvestris L.]