Search results for "Bion"

Beetles (Coleoptera) in the Tarnowskie Góry-Bytom Subterranean System

2017

Badania gatunków chrząszczy (Coleoptera), które przeprowadzono w jednym z największych sztucznych podziemnych systemów w Europie (Podziemia TarnogórskoBytomskie). W wyniku rocznych badań stwierdzono 3 gatunki chrząszczy: Choleva glauca, Pterostichus niger, Quedius mesomelinus. Ze względu na brak okazów w strefie przy wejściu należy założyć, że te populacje są odizolowane od pozostałych na powierzchni. Poszczególne gatunki występują tylko w określonych porach roku. Autorzy sugeruje, może to być początek troglobiontycznego trybu życia.

Supplementary data for Ün et. al. 2020 "Cytoplasmic incompatibility between New and Old World populations of a tramp ant"

2020

Supplementary annotation and phylogenetic data. See included README file for details.

Geographical separation and physiology drive differentiation of microbial communities of two discrete populations of the bat Leptonycteris yerbabuenae

2020

In this paper, we explore how two discrete and geographically separated populations of the lesser long‐nosed bat (Leptonycteris yerbabuenae)—one in central and the other in the Pacific region of Mexico—differ in their fecal microbiota composition. Considering the microbiota–host as a unity, in which extrinsic (as food availability and geography) or intrinsic factors (as physiology) play an important role in the microbiota composition, we would expect differentiation in the microbiota of two geographically separated populations. The Amplicon Sequences Variants (ASVs) of the V4 region of the 16s rRNA gene from 68 individuals were analyzed using alpha and beta diversity metrics. We obtained a …

Arbuscular mycorrhizal fungi influence host infection during epidemics in a wild plant pathosystem

2022

SummaryWhile pathogenic and mutualistic microbes are ubiquitous across ecosystems and often co-occur within hosts, how they interact to determine patterns of disease in genetically diverse wild populations is unknown.To test whether microbial mutualists provide protection against pathogens, and whether this varies among host genotypes, we conducted a field experiment in three naturally-occurring epidemics of a fungal pathogen, Podosphaera plantaginis, infecting a host plant, Plantago lanceolata, in the Åland Islands, Finland. In each population, we collected epidemiological data on experimental plants from six allopatric populations that had been inoculated with a mixture of mutualistic arb…

Halloysite nanotubes for efficient loading, stabilization and controlled release of insulin

2018

Hypothesis: Oral insulin administration is not actually effective due to insulin rapid degradation, inactivation and digestion by proteolytic enzymes which results in low bioavailability. Moreover insulin is poorly permeable and lack of lipophilicity. These limits can be overcome by the loading of protein in some nanostructured carrier such as halloysite nanotubes (HNTs). Experiments: Herein we propose an easy strategy to obtain HNT hybrid materials for the delivery of insulin. We report a detailed description on the thermal behavior and stability of insulin loaded and released from the HNTs hybrid by the combination of several techniques. Findings: Release experiments of insulin from the H…

Species Composition and Structure of Beetle Associations in Caves of the Częstochowa Upland, Poland

2023

This paper presents the study’s results on beetles (Insecta: Coleoptera) inhabiting caves in the Częstochowa Upland, southern Poland. During two years of research, 2084 specimens, representing 105 species from 19 beetle families, were collected. The obtained results indicate that many beetle species choose to inhabit caves despite lacking specific adaptations for living in such environments. The cave entrance zone is the most attractive place for surface species to inhabit because its climatic conditions are more stable than outside the cave, some sunlight is present, and the availability of organic matter is high. In the deeper parts of the studied caves, the number of occurring species ra…

[Cartas a Felipe II sobre fortificar los puertos]

Ms Títol pres del llom de l'enquadernació Al f. 2, s'inclou una taula de contingut Numeració antiga: 128 f. ; foliació posterior a llapis asignada pel catalogador: 248 f. ; fulls en blanc (129-228, 229v, 230r) Escrit per diverses mans i algunes anotacions marginals Filigrana Anotacions en el f. 1: "D[o]n Vespasiano Gonzaga, Principe de Sabioneta, Duque de Trageto fue Virrey de Valencia en 1575"; D[o]n Vespasiano Manrique Gonzaga, Conde de Paredes, fue Virrey de Val[enci]a en 1668, abuelo o visabuelo del C[on]de de Parcent actual" Cartes de Vespasiano Gonzaga Colonna, datades entre els anys 1570 i 1577, informant sobre les fortificacions i defenses en diferents llocs d'Espanya dirigides, la …

Molecular phylogeny of parabasalids with emphasis on the order Cristamonadida and its complex morphological evolution

2009

1055-7903 doi: DOI: 10.1016/j.ympev.2009.03.011; Parabasalia represents a complex assemblage of species, which recently received extensive reorganization. The newly created order Cristamonadida unites complex hypermastigids belonging to the Lophomonadida like the joeniids, the multinucleate polymonad Calonymphidae, and well-developed trichomonads in the Devescovinidae. All these protists exclusively occur in the guts of termites and related insects. In this study, small subunit rRNA and glyceraldehyde-3-phosphate dehydrogenase genes were identified without cultivation from 14 species in Cristamonadida including previously unstudied genera such as Joenina, Joenia, Joenoides, Macrotrichomonas…

Evolution of small prokaryotic genomes

2015

As revealed by genome sequencing, the biology of prokaryotes with reduced genomes is strikingly diverse. These include free-living prokaryotes with ∼800 genes as well as endosymbiotic bacteria with as few as ∼140 genes. Comparative genomics is revealing the evolutionary mechanisms that led to these small genomes. In the case of free-living prokaryotes, natural selection directly favored genome reduction, while in the case of endosymbiotic prokaryotes neutral processes played a more prominent role. However, new experimental data suggest that selective processes may be at operation as well for endosymbiotic prokaryotes at least during the first stages of genome reduction. Endosymbiotic prokar…

First record of Temnosewellia minor (Platyhelminthes, Temnocephalidae) in Sicily, with a plea for a re-examination of the identity of the publicly av…

2021

Author(s): Vecchioni, Luca; Chirco, Pietro; Bazan, Giuseppe; Marrone, Federico; Arizza, Vincenzo; Arculeo, Marco | Abstract: Ectosymbiotic temnocephalan flatworms belonging to the genus Temnosewellia Damborenea and Cannon, 2001 were collected on Cherax destructor Clark, 1936 in an aquaculture farm in Sicily, Italy. This represents the first record of a temnocephalan species for the fauna of the island. Morphological and molecular identification of the collected specimens proved that they belong to the allochthonous species Temnosewellia minor Haswell, 1888, which was introduced along with crayfishes bred in aquaculture farms. The phylogenetic analyses carried out for the molecular identific…