Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 33

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

'Sweet but dangerous': nectaries in carnivorous plants

100%
Plachno B. J.
Acta Agrobotanica
|
2007
|
tom 60
|
nr 2
In carnivorous plants, two types of nectaries occur: extra- floral nectaries, generally associated with prey luring, and floral ones associated with pollination. Nectar produced by extra-floral nectaries not only attracts prey but may also be involved in trapping prey and plays a role in myrmecophily. The diversity of nectary structure in carnivorous plants reflects complicated evolutionary routes in this unique ecological group.
2

Morphology and structure of plastids in embryo-suspensor among Crassulaceae

63%
Kozieradzka-Kiszkurno M., Plachno B. J.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2012
|
tom 54
|
nr 1
3

Naked embryo sacs of Utricularia alpina Jacq. (Orchidioides, Lentibulariaceae)

63%
Plachno B. J., Swiatek P.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2008
|
tom 50
|
nr 1
4

ularia bremii (Lentibulariaceae) in Poland

63%
Krajewski L., Plachno B. J.
Polish Botanical Journal
|
2015
|
tom 60
|
nr 1
5

Seedling structure and morphology in an "aquatic epiphyte" Utricularia nelumbifolia Gardner

63%
Plachno B. J., Swiatek P.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2012
|
tom 54
|
nr 1
6

Embryology of Utricularia livida E.Meyer cultivars

63%
Plachno B. J., Jankun A.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2004
|
tom 46
|
nr 1
7

Transfer cell wall architecture in secretory hairs of Utricularia intermedia traps

63%
Plachno B. J., Jankun A.
Acta Biologica Cracoviensia. Series Botanica
|
2004
|
tom 46
193-200
This paper discusses transfer cell wall deposition and architecture in various trap hairs of the carnivorous plant Utricularia intermedia. Scanning electron microscopy showed that the middle cells of both internal hairs and pavement epithelium hairs have reticulate-type wall ingrowths. The wall ingrowths of the middle cell of both quadrifids and bifids are very well developed. However, in middle cells of pavement epithelium hairs the level of development of wall ingrowths is not uniform. The presence of ruptured cuticles and wall ingrowths in these hairs suggests that water is transported by the pavement epithelium hairs from the trap to the external environment.
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Algae commensal community in Genlisea traps

63%
Plachno B. J., Wolowski K.
Acta Societatis Botanicorum Poloniae
|
2008
|
tom 77
|
nr 1
The community of algae occurring in Genlisea traps and on the external traps surface in laboratory conditions were studied. A total of 29 taxa were found inside the traps, with abundant diatoms, green algae (Chlamydophyceae) and four morphotypes of chrysophytes stomatocysts. One morphotype is described as new for science. There are two ways of algae getting into Genlisea traps. The majority of those recorded inside the traps, are mobile; swimming freely by flagella or moving exuding mucilage like diatoms being ablate to colonize the traps themselves. Another possibility is transport of algae by invertebrates such as mites and crustaceans. In any case algae in the Genlisea traps come from the surrounding environment. Two dominant groups of algae (Chladymonas div. and diatoms) in the trap environment, show ability to hydrolyze phosphomonoseters. We suggest that algae in carnivorous plant traps can compete with plant (host) for organic phosphate (phosphomonoseters). From the spectrum and ecological requirements of algal species found in the traps, environment inside the traps seems to be acidic. However, further studies are needed to test the relations between algae and carnivorous plants both in laboratory conditions and in the natural environment. All the reported taxa are described briefly and documented with 74 LM and SEM micrographs.
9

Larval stages of Cacopsylla melanoneura (Förster, 1848) (Hemiptera: Psylloidea)

51%
Drohojowska J., Poprawa I., Plachno B. J.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2010
|
tom 52
|
nr 1
10

The fate of integumentary cells in apomictic and sexual members of Asteraceae (genera: Taraxacum, Hieracium and Pilosella)

51%
Plachno B. J., Swiatek P., Kurczynska E., Kozieradzka-Kiszkurno M.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2016
|
tom 58
|
nr 1
11

Prey attraction in carnivorous Genlisea [Lentibulariaceae]

51%
Plachno B. J., Kozieradzka-Kiszkurno M., Swiatek P., Darnowski D. W.
Acta Biologica Cracoviensia. Series Botanica
|
2008
|
tom 50
|
nr 2
87-94
In this study we test three hypotheses. (1) Secretory hairs in the arms and the distal part of the neck of the carnivorous plant Genlisea (Lentibulariaceae) have a different principal function than the digestive hairs in the digestive chamber, that is, prey attraction. (2) Only bacteria and other organisms inside the trap and on the external trap surface lure prey. (3) Substances produced by the plant have a minor influence on prey attraction; more important is trap shape and morphology, because protozoa and microfauna may move to the small interspaces (traps or capillaries) by accidental, nonspecific wandering. We studied the structure of secretory hairs (glands) in the arms and the distal and proximal parts of the trap neck using light, fluorescence and electron microscopy. We tested the hypotheses with several experiments using sterile Genlisea traps as well as glass tubes acting as a Genlisea trap model, and various organisms as prey (Blepharisma sp., Paramecium bursaria, Euglena sp.). Hairs in the arms and the distal part of the Genlisea trap neck represent polysaccharide-protein-secreting hairs. Prey still moved to cleaned traps without chemical attractants. In the proximal part of the neck the secretory hairs have the same ultrastructure as digestive hairs in the digestive chamber of Genlisea. Sterile traps do not need commensals for catching prey. The results of the behavioral experiments reported here support the hypothesis that prey can move to the traps or capillaries by accidental, nonspecific wandering to small objects filled with water. Thus, the complex structure of the Genlisea trap with long arms may help catch prey simply by providing a large surface with many small openings which mimic the interspaces between soil particles, and the plant does not need special mediators for prey attraction.
12

Sexual reproductive traits in tetraploid Pilosella officinarum (Asteraceae, Cichorioideae): DIC microscope study of cleared whole-mount tissue

51%
Sak D., Janas A., Musial K., Plachno B. J.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2016
|
tom 58
|
nr 1
13

Fusomorfogenesis in Utricularia intermedia Hayne

51%
Plachno B. J., Swiatek P., Jankun A.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2006
|
tom 48
|
nr 1
24
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Pijawka z haczykami, czyli rzecz o nietypowej pierscienicy

51%
Swiatek P., Plachno B. J., Bielecki A., Fuchs A. Z.
Wszechświat
|
2010
|
tom 111
|
nr 04-06
110-113
15

Chrysophycean stomatocysts associated with the carnivorous plants (genus Utricularia) from Jeleniak-Mikuliny Nature Reserve

51%
Wolowski K., Piatek J., Plachno B. J.
Oceanological and Hydrobiological Studies
|
2013
|
tom 42
|
nr 4
16
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Histological and cytological analysis of microsporogenesis and microgametogenesis of the invasive species Galinsoga quadriradiata Ruiz and Pav. (Asteraceae)

51%
Kolczyk J., Tuleja M., Plachno B. J.
Acta Biologica Cracoviensia. Series Botanica
|
2015
|
tom 57
|
nr 2
17

The giant extra-floral nectaries of carnivorous Heliamphora folliculata: Architecture and ultrastructure

51%
Plachno B. J., Swiatek P., Wistuba
Acta Biologica Cracoviensia. Series Botanica
|
2007
|
tom 49
|
nr 2
91-104
18
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Comparative anatomy of ovules in Galinsoga, Solidago and Ratibida (Asteraceae)

51%
Kolczyk J., Stolarczyk P., Plachno B. J.
Acta Biologica Cracoviensia. Series Botanica
|
2014
|
tom 56
|
nr 2
19
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

A new brittle star from the early Carboniferous of Poland and its implications on Paleozoic modern-type ophiuroid systematics

51%
Thuy B., Kutscher M., Plachno B. J.
Acta Palaeontologica Polonica
|
2015
|
tom 60
|
nr 4
The fossil record of Paleozoic ophiuroids includes a number of forms which share striking similarities with modern relatives in terms of skeletal morphology. These so called modern-type Paleozoic ophiuroids yield an enormous potential for a better understanding of ophiuroid evolution, yet the scarcity of accurate and sufficiently detailed morphological descriptions available to date precludes any further-reaching assessments. Here, we describe an articulated ophiuroid specimen from the Late Tournaisian (early Carboniferous) of Czatkowice quarry, southern Poland, as a new species Aganaster jagiellonicus sp. nov. The good preservation of the specimen allowed for a morphological analysis at a level comparable to recent ophiuroid descriptions. It shows remarkable morphological similarities with extant former ophio-lepidids Ophiomusium and Ophiosphalma. The new find thus contributes to a solid basis for future investigations on the position of the modern-type Paleozoic ophiuroid in the phylogeny of the class.
20

Changes in the structure of Drosera spatulata Labill. cells as response on various spectral composition of radiation in in vitro cultures

51%
Makowski W., Tokarz K., Plachno B. J., Piwowarczyk B.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2016
|
tom 58
|
nr 1
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.