Paramecium novaurelia in the Gorgany Mts (Eastern Carpathians) in Ukraine.

In the samples collected on the territory of the recently studied region of the Eastern Carpathians, i.e. in the Gorgany Mts, the presence of P.

Studies on some zooplanktonic organisms in the waters of the southern slope of Mt Babia Góra (the Carpathians).

Some predominant zooplanktonic organisms were registered in several water bodies of Mt Babia Góra.

Cytological and morphological differences between two species of the genus Tettigonia (Orthoptera, Tettigoniidae) from Korea.

Tettigonia ussuriana and T. dolichopoda maritima differ in the length of tegmina, details in venation, and in females in details of the subgenital plate. The two species of the genus Tettigonia have the same number and morphology of autosomes but a different morphology of the X chromosome: in T.

Chromosome numbers, C-banding patterns and sperm of some ladybird species from Central Europe (Coleoptera, Coccinellidae).

C-banded karyotypes were studied in the males of seven ladybird species from the subfamily Coccinellinae, viz. Adonia variegata (Goeze), Tythaspis sedecimpunctata (L.), Coccinella septempunctata (L.

An interesting case of gynandromorphism in Andrena helvola (Linnaeus, 1758) (Hymenoptera: Apoidea: Andrenidae).

A gynandromorphic specimen of Andrena helvola (Linnaeus, 1758) having secondary sexual characters on the head is described.

Paramecium aurelia species complex in the catchment area of the River Raba mountain course (the Carpathians).

In the water bodies of the Beskid Wyspowy Mts three species of the Paramecium aurelia complex have been found, i.e. P.

The Paramecium aurelia species complex in Ukraine.

New habitats of Paramecium biaurelia were found in the Gorgany Mts, Eastern Carpathians.

Zooplankton in the ponds with tropical plants in the greenhouses of the Botanical Garden of the Jagiellonian University in Kraków.

The presence of P. tetraurelia was found in the pond in "The Palm-House" greenhouse.

C-bands on chromosomes of four beetle species (Coleoptera: Carabidae, Silphidae, Elateridae, Scarabaeidae).

The C-banding pattern of Bembidion geniculatum, Silpha atrata, Prosternon tesselatum, and Epicometis hirta are presented. All analysed species have pracentromeric C-bands on autosomes and chromosome X but the widest ones are visible in the karyotype of B. geniculatum.

Chromosome banding in Cacopsylla mali (Schmidberger) and Cacopsylla sorbi (Linnaeus) (Homoptera, Psyllidae) with polymorphic sex chromosomes.

C-banding and Ag staining were applied to Cacopsylla sorbi and C. mali. The aim was to discover some additional cytological markers to follow the pathways of the sex determination system transformation in the evolution of the species.

Effect of wild-type macronucleoplasm transplantation into trichocyst mutant cells of Paramecium tetraurelia.

Approximately 1/2 of the macronucleoplasm of wild-type cells of Paramecium tetraurelia was transplanted into d4-84 mutant recipient homozygous for mutations nd3a (non-discharging trichocysts) and ts401 (temperature sensitive). After injection, 30% of surviving cells shifted from mutant to wild-type phenotype. Among the remaining cell lines 29% were unable to eject any trichocysts, and 41% discharged less than 10 of them per cell, when tested with picric acid.

Zooplankton in the artificial pond of the Botanical Garden of the Jagiellonian University in Kraków.

Paramecium caudatum and the predominant zooplanton organisms were registered in the studied pond of the Botanical Garden of the Jagiellonian University in Kraków. The finding of Stentor coeruleus indicates an improvement in the environmental conditions in Kraków, connected with the partial liquidation of the huge steelworks.

B chromosomes, translocation between B and autosomes, and C-heterochromatin polymorphism of the grasshopper Podisma sapporensis Shir. (Orthoptera, Acrididae) in Hokkaido, northern Japan.

Seven categories of B chromosomes found in the brachypterus grasshopper Podisma sapporensis from Hokkaido populations differ in structure, size, and C-band content. The interchange between B and one autosome from M3 and sporadically M7 was observed in most of the populations examined. Such an interaction between standard and non-standard chromosomal set provides an insight into the integration of supernumerary chromosome.

Standard and C-banded meiotic karyotypes of Psylloidea (Sternorrhyncha, Homoptera, Insecta).

Meiotic karyotypes were studied in males of Craspedolepta sonchi (Foerster, 1848), Diaphorina chobauti Puton, 1898, D. lamproptera Burckhardt, 1981, Psylla hartigii Flor, 1861, Cacopsylla palmeni (Loew, 1878), C. hippophaes (Foerster, 1848), C.

Cytogenetic investigations on seven Palaearctic weevil species (Coleoptera, Curculionidae).

Cytogenetic investigations were carried out on seven species of bisexual weevils from five subfamilies. The following numbers of chromosomes were found in individual species: 2n = 22, n male = 10 + Xyp in Ptochus porcellus Boh. (Otiorhynchinae); 2n = 40, n male = 19 + Xyp in Larinodontes turbinatus Gyll.

Anomalies of autogamy in Paramecium tetraurelia temperature sensitive mutant induced by heat treatment.

The run of autogamy in temperature sensitive mutant ts401, carrying also the mutation of trichocysts nd3a, at permissive (26 degrees C) and non-permissive temperature (35 degrees C) was studied and compared with this process in wild d4-2 stock of Paramecium tetraurelia. The effect of heat treatment on programmed nuclear and cortical events was investigated using cytological silver impregnation Fernandez-Galiano method and immunofluorescence technique with the application of two anti-alpha-tubulin antibodies. The appearance of cells with some large macronuclear fragments and an excess number of micronuclei suggests that nuclear differentiation is inhibited at restrictive temperature and that macronuclear regeneration takes place in this thermosensitive mutant.

Species of the Paramecium aurelia complex in Japan.

In Japan, the presence of Paramecium sexaurelia was revealed for the first time, and a new habitat of P. tetraurelia was found there.

Habitat of Paramecium biaurelia in Italy, the Island of Elba.

The new habitat of Paramecium biaurelia was found on the Island Elba.

Stanisław Skowron (1900-1976). The 100th anniversary of his birth.

The article recollects a biography of Professor Stanisław Skowron, distinguished Polish embryologist, geneticist, and evolutionist, known particularly well to all those working in the field of regeneration. In 1953 Professor S. Skowron founded and became the first editor of FOLIA BIOLOGICA an international quarterly journal of biological research devoted mainly to experimental zoology.

Paramecium aurelia species complex in a natural but newly reconstructed pond of the Botanical Garden of the Jagiellonian University in Kraków.

In a natural but newly reconstructed pond the presence of P. biaurelia was revealed. The previous studies conducted in 1992 did not reveal the occurrence of any species of the Paramecium aurelia complex here.

Chromosome evolution in the genus Poecilimon (Orthoptera, Tettigonioidea, Phaneropteridae).

Cytotaxonomic analysis of 20 species and subspecies of the genus Poecilimon using C-banding pattern, chiasma frequency, and morphometric characteristics of the chromosomes were described. Using a cladistic analysis the chromosome data provided a basis to produce a phylogenetic tree which was compared with a tree based on morphological characters and DNA sequence data. There are important differences in the grouping of data sets to species obtained on the basis of morphology/DNA analyses and that based on chromosomes.

Some aspects of karyotype of Liarina (Orthoptera: Tettigoniidae, Agraeciini) from Vietnam.

Karyotypes (chromosome number and shape) of four species of the subtribe Liarina were studied. The chromosome numbers and NF (Fundamental Number) in this group of species range from 2n Male = 33 (34) to 27(30): Liaromorpha buonluoiensis 2n Male = 33 (34), Sialaiana transiens 2n Male = 29 (34), Liara tramlapensis 2n Male = 29 (32), and Anelytra (Perianelytra) propria 2n Male = 27 (30). Cyto-taxonomy analysis indicates an intensive karyotype evolution among species belonging to three different groups of the genera.

C-banding patterns in chromosomes of Paederius rubrothoracicus carpathicola Scheerpetz 1957 (Coleoptera, Staphylinidae: Paederinae).

An analysis was made of the C-banded karyotype of Paederius rubrothoracicus carpathicola Scheerp. The result indicates that the chromosome number is 2n = 36 and n Male = 17 + Xyp. The examined karyotype shows a paracentromeric position of constitutive heterochromatin in all autosomes.

Karyological investigations on seven weevil species (Coleoptera, Curculionidae).

Karyological studies were carried out on seven Palaearctic weevils. The following chromosome numbers were found in individual species, i.e.

Species of the Paramecium aurelia complex in Spain.

The new habitats of P. primaurelia, P. biaurelia, and P.