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Total 85360 results found since Jan 2013.

Impact of the early months of the COVID-19 pandemic on the sleep patterns of a Brazilian population sample
Chronobiol Int. 2023 Sep 12:1-13. doi: 10.1080/07420528.2023.2255667. Online ahead of print.ABSTRACTHumanitarian and health crisis have drastic effects on the physical and mental well-being of people. The COVID-19 pandemic forced many countries to impose containment measures on its population to halt the spread of the new coronavirus (SARS-CoV-2). This aim of this study was to explore self-reported sleep quality and insomnia symptoms in a sample of the Brazilian population before and during the COVID-19 quarantine period. Our data was collected through online questionnaires, including the Pittsburgh Sleep Quality Index, th...
Source: Chronobiology International - September 13, 2023 Category: Biology Authors: Sergio Brasil Tufik Gabriel Natan Pires Allan Saj Porcacchia Andr éia Gomes Bezerra Monica Levy Andersen Sergio Tufik Source Type: research

A biosemiotic interpretation of certain genital morphological structures in the spiders Dysdera erythrina and Dysdera crocata (Araneae: Dysderidae)
Theory Biosci. 2023 Sep 13. doi: 10.1007/s12064-023-00404-1. Online ahead of print.ABSTRACTA biosemiotic approach to the interpretation of morphological data is apt to highlight morphological traits that have hitherto gone unnoticed for their crucial roles in intraspecific sign interpretation and communication processes. Examples of such traits include specific genital structures found in the haplogyne spiders Dysdera erythrina (Walckenaer 1802) and Dysdera crocata (Koch 1838). In both D. erythrina and D. crocata, the distal sclerite of the male bulb and the anterior diverticulum of the female endogyne exhibit a striking, ...
Source: Theory in Biosciences - September 13, 2023 Category: Biology Authors: Joachim Schult Onno Preik Stefan Kirschner Frank Friedrich Source Type: research

On ability of perch to colonize new waterbodies < em > - < /em > indirect evidence and sticky facts. A Comment on: 'Multiple lines and levels of evidence for avian zoochory promoting fish colonization of artificial lakes' (2023), by Garcia < em > et al < /em >
Biol Lett. 2023 Sep;19(9):20230233. doi: 10.1098/rsbl.2023.0233. Epub 2023 Sep 13.NO ABSTRACTPMID:37700702 | PMC:PMC10498351 | DOI:10.1098/rsbl.2023.0233
Source: Biology Letters - September 13, 2023 Category: Biology Authors: Anti Vasem ägi Magnus Huss Anna G årdmark Mikhail Ozerov Source Type: research

No phylogenetic evidence for angiosperm mass extinction at the Cretaceous-Palaeogene (K-Pg) boundary
Biol Lett. 2023 Sep;19(9):20230314. doi: 10.1098/rsbl.2023.0314. Epub 2023 Sep 13.ABSTRACTThe Cretaceous-Palaeogene mass extinction event (K-Pg) witnessed upwards of 75% of animal species going extinct, most notably among these are the non-avian dinosaurs. A major question in macroevolution is whether this extinction event influenced the rise of flowering plants (angiosperms). The fossil record suggests that the K-Pg event had a strong regional impact on angiosperms with up to 75% species extinctions, but only had a minor impact on the extinction rates of major lineages (families and orders). Phylogenetic evidence for angi...
Source: Biology Letters - September 13, 2023 Category: Biology Authors: Jamie B Thompson Santiago Ram írez-Barahona Source Type: research

A biosemiotic interpretation of certain genital morphological structures in the spiders Dysdera erythrina and Dysdera crocata (Araneae: Dysderidae)
Theory Biosci. 2023 Sep 13. doi: 10.1007/s12064-023-00404-1. Online ahead of print.ABSTRACTA biosemiotic approach to the interpretation of morphological data is apt to highlight morphological traits that have hitherto gone unnoticed for their crucial roles in intraspecific sign interpretation and communication processes. Examples of such traits include specific genital structures found in the haplogyne spiders Dysdera erythrina (Walckenaer 1802) and Dysdera crocata (Koch 1838). In both D. erythrina and D. crocata, the distal sclerite of the male bulb and the anterior diverticulum of the female endogyne exhibit a striking, ...
Source: Theory in Biosciences - September 13, 2023 Category: Biology Authors: Joachim Schult Onno Preik Stefan Kirschner Frank Friedrich Source Type: research

Preliminary evidence of an increased susceptibility to face pareidolia in postpartum women
Biol Lett. 2023 Sep;19(9):20230126. doi: 10.1098/rsbl.2023.0126. Epub 2023 Sep 13.ABSTRACTAs primates, we are hypersensitive to faces and face-like patterns in the visual environment, hence we often perceive illusory faces in otherwise inanimate objects, such as burnt pieces of toast and the surface of the moon. Although this phenomenon, known as face pareidolia, is a common experience, it is unknown whether our susceptibility to face pareidolia is static across our lifespan or what factors would cause it to change. Given the evidence that behaviour towards face stimuli is modulated by the neuropeptide oxytocin (OT), we re...
Source: Biology Letters - September 13, 2023 Category: Biology Authors: Jessica Taubert Samantha Wally Barnaby J Dixson Source Type: research

RALF22 promotes plant immunity and amplifies Pep3 immune signal
This article is protected by copyright. All rights reserved.PMID:37698076 | DOI:10.1111/jipb.13566
Source: Journal of Integrative Plant Biology - September 12, 2023 Category: Biology Authors: Yu-Han He Song-Yu Chen Xing-Yan Chen You-Ping Xu Yan Liang Xin-Zhong Cai Source Type: research

Efficient CRISPR/Cas9-mediated genome editing in sheepgrass (Leymus chinensis)
This study opens avenues for studying gene function and breeding in sheepgrass. This article is protected by copyright. All rights reserved.PMID:37698072 | DOI:10.1111/jipb.13567
Source: Journal of Integrative Plant Biology - September 12, 2023 Category: Biology Authors: Zhelong Lin Lei Chen Shanjie Tang Mengjie Zhao Tong Li Jia You Changqing You Boshu Li Qinghua Zhao Dongmei Zhang Jianli Wang Zhongbao Shen Xianwei Song Shuaibin Zhang Xiaofeng Cao Source Type: research

A spatially concerted epidermal auxin signaling framework steers the root hair foraging response under low nitrogen
Curr Biol. 2023 Sep 6:S0960-9822(23)01119-3. doi: 10.1016/j.cub.2023.08.040. Online ahead of print.ABSTRACTAs a major determinant of the nutrient-acquiring root surface, root hairs (RHs) provide a low-input strategy to enhance nutrient uptake. Although primary and lateral roots exhibit elongation responses under mild nitrogen (N) deficiency, the foraging response of RHs and underlying regulatory mechanisms remain elusive. Employing transcriptomics and functional studies revealed a framework of molecular components composing a cascade of auxin synthesis, transport, and signaling that triggers RH elongation for N acquisition...
Source: Current Biology - September 12, 2023 Category: Biology Authors: Zhongtao Jia Ricardo F H Giehl Anja Hartmann Jose M Estevez Malcolm J Bennett Nicolaus von Wir én Source Type: research

Extending the reach of homology by using successive computational filters to find yeast pheromone genes
Curr Biol. 2023 Sep 6:S0960-9822(23)01118-1. doi: 10.1016/j.cub.2023.08.039. Online ahead of print.ABSTRACTThe mating of fungi depends on pheromones that mediate communication between two mating types. Most species use short peptides as pheromones, which are either unmodified (e.g., α-factor in Saccharomyces cerevisiae) or C-terminally farnesylated (e.g., a-factor in S. cerevisiae). Peptide pheromones have been found by genetics or biochemistry in a small number of fungi, but their short sequences and modest conservation make it impossible to detect homologous sequences in most species. To overcome this problem, we used a...
Source: Current Biology - September 12, 2023 Category: Biology Authors: Sriram Srikant Rachelle Gaudet Andrew W Murray Source Type: research

Defining eukaryotes to dissect eukaryogenesis
Curr Biol. 2023 Sep 11;33(17):R919-R929. doi: 10.1016/j.cub.2023.07.048.ABSTRACTThe origin of eukaryotes is among the most contentious debates in evolutionary biology, attracting multiple seemingly incompatible theories seeking to explain the sequence in which eukaryotic characteristics were acquired. Much of the controversy arises from differing views on the defining characteristics of eukaryotes. We argue that eukaryotes should be defined phylogenetically, and that doing so clarifies where competing hypotheses of eukaryogenesis agree and how we may test among aspects of disagreement. Some hypotheses make predictions abou...
Source: Current Biology - September 12, 2023 Category: Biology Authors: Philip C J Donoghue Chris Kay Anja Spang Gergely Sz öllősi Anna Nenarokova Edmund R R Moody Davide Pisani Tom A Williams Source Type: research

Rodent attention: Probing the mouse mind with reverse correlation
Curr Biol. 2023 Sep 11;33(17):R916-R918. doi: 10.1016/j.cub.2023.07.015.ABSTRACTA novel approach to studying attention in mice reveals processes similar to those in humans and lays out an efficient way to explore its neuronal correlates in a genetically tractable animal model.PMID:37699352 | DOI:10.1016/j.cub.2023.07.015
Source: Current Biology - September 12, 2023 Category: Biology Authors: Supriya Ghosh John H R Maunsell Source Type: research

Plant biology: Young maize leaves 'smell' a volatile danger signal
Curr Biol. 2023 Sep 11;33(17):R914-R916. doi: 10.1016/j.cub.2023.07.034.ABSTRACTInsect-attacked maize releases volatile compounds named green leaf volatiles. A new study shows that young maize leaves respond to a green leaf volatile compound with emission of indole and terpenes, while these responses are almost completely absent in mature leaves.PMID:37699351 | DOI:10.1016/j.cub.2023.07.034
Source: Current Biology - September 12, 2023 Category: Biology Authors: Jianqiang Wu Source Type: research

Plant development: How to kill the endosperm
Curr Biol. 2023 Sep 11;33(17):R912-R913. doi: 10.1016/j.cub.2023.07.033.ABSTRACTUsing molecular markers and genetic analysis of mutant phenotypes, a new study reveals that endosperm elimination in plant seeds is under control of the programmed cell death pathway.PMID:37699350 | DOI:10.1016/j.cub.2023.07.033
Source: Current Biology - September 12, 2023 Category: Biology Authors: Claudia K öhler Nicolas Butel Source Type: research

A broad-taxa approach as an important concept in ecotoxicological studies and pollution monitoring
Biol Rev Camb Philos Soc. 2023 Sep 12. doi: 10.1111/brv.13015. Online ahead of print.ABSTRACTAquatic invertebrates play a pivotal role in (eco)toxicological assessments because they offer ethical, cost-effective and repeatable testing options. Additionally, their significance in the food chain and their ability to represent diverse aquatic ecosystems make them valuable subjects for (eco)toxicological studies. To ensure consistency and comparability across studies, international (eco)toxicology guidelines have been used to establish standardised methods and protocols for data collection, analysis and interpretation. However...
Source: Biological Reviews of the Cambridge Philosophical Society - September 12, 2023 Category: Biology Authors: Amalia Rosner Loriano Ballarin St éphanie Barnay-Verdier Ilya Borisenko Laura Drago Damjana Drobne Maria Concetta Eliso Zoya Harbuzov Annalisa Grimaldi Tamar Guy-Haim Arzu Karahan Iseult Lynch Maria Giulia Lionetto Pedro Martinez Kahina Mehennaoui Elif O Source Type: research