Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Krystyna Idzikowska"'
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 48, Iss 3, Pp 377-380 (2015)
Cell wall formation in several-nucleate pollen grains of Hordeum vulgare anthers cultured in vitro was initiated at the intine. The walls grew centripetally and branched, dividing pollen protoplast into a several-celled embryoid.
Externí odkaz:
https://doaj.org/article/d054c7540d1d4c9e89e2dd55bcf30dcc
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 47, Iss 3, Pp 219-224 (2015)
The ultrastructure of anther wall and pollen of Hordeum vulgare was de-scribed at the microspore stage. In future studies this stage will constitute an initial material in experiments for the inducement of androgenesis.
Externí odkaz:
https://doaj.org/article/e1e7d14dc6ad48b3ae0b28d3805861ca
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 47, Iss 1–2, Pp 143-152 (2015)
Fine structure of the protonema is described, with a special attention to its differentiation depending on the position of cells in the protanemal filament, as well as in response to a cytokinin treatment. Complexes of micro-filaments with osmiophili
Externí odkaz:
https://doaj.org/article/edb748bc8f7143cda73466681c86b48f
Autor:
Krystyna Przybył, Krystyna Idzikowska
Publikováno v:
Acta Mycologica, Vol 32, Iss 1, Pp 13-21 (2014)
Ultrastructural ohservations of isolates presented in this paper revealed that conidia and hyphaae taken from 6-day old end 30-day-old cultures differed in morphology of membranous bodies and occurrence of electron opaque bodies (EOB). Signle Sporoth
Externí odkaz:
https://doaj.org/article/9499c99cb60f44098bf3dc5048bcde47
Autor:
Krystyna Przybył, Krystyna Idzikowska
Publikováno v:
Acta Mycologica, Vol 30, Iss 2, Pp 157-165 (2014)
Ultrastructural observations of two Ophiostoma querci isolates presented in this paper showed endospores within hyphal cells and Sporothrix conidia. The endospores were apparently included in a matrix of an electron transparent material or were assoc
Externí odkaz:
https://doaj.org/article/4cbea3380db94b69acd4b59f6df9b39b
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 51, Iss 2, Pp 153-156 (2014)
Dimorphism of binucleate pollen grains of Hordeum vulgare has been confirmed. It is considered, however, in contrast to the accepted opinions, that some of the large pollen grains with dense cytoplasm lying close to the tapetum are the outset forms f
Externí odkaz:
https://doaj.org/article/e0a8833003bc4e69b1b0f9b7a3276f64
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 52, Iss 3-4, Pp 197-200 (2014)
Chromatin elimination was observed in hybrid embryos of Hordeum as incorporation of single chromosomes into tiny vacuoles-lysomes and as fragmentation of interphase nuclei: The latter process led mostly to the formation of micronuclei which underwent
Externí odkaz:
https://doaj.org/article/520ff6686d4345dba1b8508d9509af66
Autor:
Krystyna Idzikowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 57, Iss 2, Pp 217-222 (2014)
Observations were carried out to define the place of lead absorption within three regions of the poplar adventitious root tip (Populus nigra "Italica" Moench.) after 24-hour exposure to a solution of Pb(N03)2 (25 mg dm-3 Pb). Deposits of lead were no
Externí odkaz:
https://doaj.org/article/adf0b50845b145c5b9925be01612057c
Autor:
Antoni Werner, Krystyna Idzikowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 70, Iss 2, Pp 119-132 (2014)
Pinus sylvestris L. seedlings representing half-sib families of several trees of known resistance in field conditions were inoculated with three strains of Heterobasidion annosum (Fr.) Bref. representing the P intersterility group. Standardized inocu
Externí odkaz:
https://doaj.org/article/3d968f289f6f4b98b555c0eab2539919
Autor:
Krystyna Idzikowska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 50, Iss 3, Pp 359-366 (2014)
Different number of mitochondria of varying structure was observed in particular stages of the development of barley (Hordeum vulgare) microspores, stimulated by the in vitro culture to form embryoids. This variability was reflected in different shap
Externí odkaz:
https://doaj.org/article/f42e1fcd7682411a94acd926e6c10264