Savanna–Forest Coexistence Across a Fire Gradient

Ecosystems - Tropical forests and savannas can co-occur in a range of macro-environmental conditions. In these conditions, disturbances and resource availability are thought to control savanna and...     

Physiological Aspects of Wolbachia pipientis–Drosophila melanogaster Relationship

Journal of Evolutionary Biochemistry and Physiology - The intracellular bacterium Wolbachia pipientis is one of the most common prokaryotic symbionts of invertebrates. It is able to affect host...     

Paleobathymetric Zonation of the Middle–Upper Jurassic Deposits in the Ulyanovsk–Saratov Trough (Russian Platform) Based on Benthic Foraminifers

The environments, favorable for the development of benthic microfauna were predominant in the Jurassic Sea in the northeastern part of the Ulyanovsk–Saratov Trough (Russian Platform). Such parameters as the distribution and the taxonomic composition of the assemblage of Jurassic benthic foraminifers, their abundance, generic and species diversity, the occurrence of new species, a ratio of species with agglutinating and calcareous shells serve as a basis for developing the paleobathymetric zonation of the basin. The tracing of the variations in these parameters through the section enables us to construct a quantity paleobathymetric curve for the Middle-Late Jurassic and to distinguish the sequence–stratigraphic elements.     

Changes in native and introduced host–parasite networks

Biological Invasions - Introduced species can alter the dynamics and structure of a native community. Network analysis provides a tool to study host–parasite interactions that can help to...     

Obituary: Teruya Uyeno (1930–2021)

Ichthyological Research -     

Reverberating effects of resource exchanges in stream–riparian food webs

Oecologia - Fluxes of materials or organisms across ecological boundaries, often termed “resource subsidies,” directly affect recipient food webs. Few studies have addressed how such...     

The kinetics and mechanisms of reactions in the flow systems glycine–sodium trimetaphosphate–imidazoles: the crucial role of imidazoles in prebiotic peptide syntheses

Amino Acids - The kinetics of oligopeptides formation in the flow systems glycine–sodium trimetaphosphate–imidazole/N-methylimidazole at thermocyclic regime has been investigated by...     

Immobilization of Baeyer–Villiger monooxygenase from acetone grown Fusarium sp.

Biotechnology Letters - A novel biocatalyst for Baeyer–Villiger oxidations is necessary for pharmaceutical and chemical industries, so this study aims to find a Baeyer–Villiger...     

ISJ meeting,Osaka, 16–19 September 2022

Ichthyological Research -     

A Data-driven Horizon Scan of Bacterial Pathogens at the Wildlife–livestock Interface

EcoHealth - Many livestock diseases rely on wildlife for the transmission or maintenance of the pathogen, and the wildlife–livestock interface represents a potential site of disease emergence...     

Crystal Structure of the FeS Cluster–Containing Nucleotide Excision Repair Helicase XPD

DNA damage recognition by the nucleotide excision repair pathway requires an initial step identifying helical distortions in the DNA and a proofreading step verifying the presence of a lesion. This proofreading step is accomplished in eukaryotes by the TFIIH complex. The critical damage recognition component of TFIIH is the XPD protein, a DNA helicase that unwinds DNA and identifies the damage. Here, we describe the crystal structure of an archaeal XPD protein with high sequence identity to the human XPD protein that reveals how the structural helicase framework is combined with additional elements for strand separation and DNA scanning. Two RecA-like helicase domains are complemented by a 4Fe4S cluster domain, which has been implicated in damage recognition, and an α-helical domain. The first helicase domain together with the helical and 4Fe4S-cluster–containing domains form a central hole with a diameter sufficient in size to allow passage of a single stranded DNA. Based on our results, we suggest a model of how DNA is bound to the XPD protein, and can rationalize several of the mutations in the human XPD gene that lead to one of three severe diseases, xeroderma pigmentosum, Cockayne syndrome, and trichothiodystrophy.     

Soil Fungi Promote Biodiversity–Productivity Relationships in Experimental Communities of Young Trees

Ecosystems - Soil fungi are a major factor maintaining plant diversity and productivity, but the underlying mechanisms are still poorly understood. Based on a biodiversity–ecosystem...