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A food interaction network between psittacines and plants in an urban area in the city of S ão Carlos - SP, southeastern Brazil
Braz J Biol. 2023 Sep 15;83:e269353. doi: 10.1590/1519-6984.269353. eCollection 2023.ABSTRACTThe Psittacidae presents a great diversity of species in the Neotropical region performing fundamental ecological functions for ecosystems. These frugivorous birds can occupy different positions in the antagonistic-mutualistic gradient of food interactions, acting as predators and/or as seed dispersers. Little is known about bird-plant ecological interaction networks focusing on psittacines in urban environments, which may compromise the management of natural areas in anthropic landscapes and hinder the planning of conservation str...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: A M Leoni M G Reis M M Dias Filho Source Type: research
Combined Effects of Fluoride and Dietary Seleno-L-methionine at Environmentally Relevant Concentrations on Female Zebrafish (Danio rerio) Liver: Histopathological Damages, Oxidative Stress and Inflammation
In this study, female zebrafish (Danio rerio) were exposed to fluoride (80 mg/L sodium fluoride) and/or dietary selenomethionine for 30, 60 and 90 days, the effects on the liver of zebrafish were investigated. The results indicated that an increase in fluoride burden, inhibited growth and impaired liver morphology were recorded after fluoride exposure. Furthermore, fluoride alone caused oxidative stress and inflammation in the liver, as reflected by the increase in ROS and MDA contents, the reduction of anti-oxidative enzymes, the altered immune related enzymes (ACP, AKP, LZM and MPO) and the expression of IL-6, IL-1β, TN...
Source: Biological Trace Element Research - September 20, 2023 Category: Biology Authors: Xiulin Zhang Jinling Cao Jianjie Chen Guodong Wang Lijuan Li Xiaobing Wei Runxiao Zhang Source Type: research
Identification of natural allelic variation in TTL1 controlling thermotolerance and grain size by a rice super pan-genome
This article is protected by copyright. All rights reserved.PMID:37728044 | DOI:10.1111/jipb.13568
Source: Journal of Integrative Plant Biology - September 20, 2023 Category: Biology Authors: Yarong Lin Yiwang Zhu Yuchao Cui Hongge Qian Qiaoling Yuan Rui Chen Yan Lin Jianmin Chen Xishi Zhou Chuanlin Shi Huiying He Taijiao Hu Chenbo Gu Xiaoman Yu Xiying Zhu Yuexing Wang Qian Qian Cuijun Zhang Feng Wang Lianguang Shang Source Type: research
Olfactory bulb activity shapes the development of entorhinal-hippocampal coupling and associated cognitive abilities
Curr Biol. 2023 Sep 13:S0960-9822(23)01152-1. doi: 10.1016/j.cub.2023.08.072. Online ahead of print.ABSTRACTThe interplay between olfaction and higher cognitive processing has been documented in the adult brain; however, its development is poorly understood. In mice, shortly after birth, endogenous and stimulus-evoked activity in the olfactory bulb (OB) boosts the oscillatory entrainment of downstream lateral entorhinal cortex (LEC) and hippocampus (HP). However, it is unclear whether early OB activity has a long-lasting impact on entorhinal-hippocampal function and cognitive processing. Here, we chemogenetically silenced ...
Source: Current Biology - September 20, 2023 Category: Biology Authors: Yu-Nan Chen Johanna K Kostka Sebastian H Bitzenhofer Ileana L Hanganu-Opatz Source Type: research
The evolution of endoparasitism and complex life cycles in parasitic platyhelminths
Curr Biol. 2023 Sep 14:S0960-9822(23)01144-2. doi: 10.1016/j.cub.2023.08.064. Online ahead of print.ABSTRACTWithin flatworms, the vast majority of parasitism is innate to Neodermata, the most derived and diversified group of the phylum Platyhelminthes.1,2 The four major lineages of Neodermata maintain various combinations of life strategies.3 They include both externally (ecto-) and internally feeding (endo-) parasites. Some lineages complete their life cycles directly by infecting a single host, whereas others succeed only through serial infections of multiple hosts of various vertebrate and invertebrate groups. Food sour...
Source: Current Biology - September 20, 2023 Category: Biology Authors: Jan Brabec Eric D Salomaki Martin Kol ísko Tom áš Scholz Roman Kuchta Source Type: research
Cep104 is a component of the centriole distal tip complex that regulates centriole growth and contributes to Drosophila spermiogenesis
Curr Biol. 2023 Sep 13:S0960-9822(23)01156-9. doi: 10.1016/j.cub.2023.08.075. Online ahead of print.ABSTRACTProper centrosome number and function relies on the accurate assembly of centrioles, barrel-shaped structures that form the core duplicating elements of the organelle. The growth of centrioles is regulated in a cell cycle-dependent manner; while new daughter centrioles elongate during the S/G2/M phase, mature mother centrioles maintain their length throughout the cell cycle. Centriole length is controlled by the synchronized growth of the microtubules that ensheathe the centriole barrel. Although proteins exist that ...
Source: Current Biology - September 20, 2023 Category: Biology Authors: John M Ryniawec Matthew R Hannaford Melanie E Zibrat Carey J Fagerstrom Brian J Galletta Sophia E Aguirre Bethany A Guice Spencer M Dean Nasser M Rusan Gregory C Rogers Source Type: research
Cleavage furrow-directed cortical flows bias PAR polarization pathways to link cell polarity to cell division
Curr Biol. 2023 Sep 15:S0960-9822(23)01155-7. doi: 10.1016/j.cub.2023.08.076. Online ahead of print.ABSTRACTDuring development, the conserved PAR polarity network is continuously redeployed, requiring that it adapt to changing cellular contexts and environmental cues. In the early C. elegans embryo, polarity shifts from being a cell-autonomous process in the zygote to one that must be coordinated between neighbors as the embryo becomes multicellular. Here, we sought to explore how the PAR network adapts to this shift in the highly tractable C. elegans germline P lineage. We find that although P lineage blastomeres exhibit ...
Source: Current Biology - September 20, 2023 Category: Biology Authors: KangBo Ng Nisha Hirani Tom Bland Joana Borrego-Pinto Susan Wagner Moritz Kreysing Nathan W Goehring Source Type: research
Cell surface plasticity in response to shape change in the whole organism
Curr Biol. 2023 Sep 13:S0960-9822(23)01148-X. doi: 10.1016/j.cub.2023.08.068. Online ahead of print.ABSTRACTPlasma membrane rupture can result in catastrophic cell death. The skeletal muscle fiber plasma membrane, the sarcolemma, provides an extreme example of a membrane subject to mechanical stress since these cells specifically evolved to generate contraction and movement. A quantitative model correlating ultrastructural remodeling of surface architecture with tissue changes in vivo is required to understand how membrane domains contribute to the shape changes associated with tissue deformation in whole animals. We and o...
Source: Current Biology - September 20, 2023 Category: Biology Authors: Thomas E Hall Nicholas Ariotti Harriet P Lo James Rae Charles Ferguson Nick Martel Ye-Wheen Lim Jean Giacomotto Robert G Parton Source Type: research
Apical PAR protein caps orient the mitotic spindle in C. elegans early embryos
Curr Biol. 2023 Sep 9:S0960-9822(23)01149-1. doi: 10.1016/j.cub.2023.08.069. Online ahead of print.ABSTRACTDuring embryonic development, oriented cell divisions are important for patterned tissue growth and cell fate specification. Cell division orientation is controlled in part by asymmetrically localized polarity proteins, which establish functional domains of the cell membrane and interact with microtubule regulators to position the mitotic spindle. For example, in the 8-cell mouse embryo, apical polarity proteins form caps on the outside, contact-free surface of the embryo that position the mitotic spindle to execute a...
Source: Current Biology - September 20, 2023 Category: Biology Authors: Naomi J Stolpner Nadia I Manzi Thomas Su Daniel J Dickinson Source Type: research
Causal role of a promoter polymorphism in natural variation of the Arabidopsis floral repressor gene FLC
Curr Biol. 2023 Sep 9:S0960-9822(23)01159-4. doi: 10.1016/j.cub.2023.08.079. Online ahead of print.ABSTRACTNoncoding polymorphism frequently associates with phenotypic variation, but causation and mechanism are rarely established. Noncoding single-nucleotide polymorphisms (SNPs) characterize the major haplotypes of the Arabidopsis thaliana floral repressor gene FLOWERING LOCUS C (FLC). This noncoding polymorphism generates a range of FLC expression levels, determining the requirement for and the response to winter cold. The major adaptive determinant of these FLC haplotypes was shown to be the autumnal levels of FLC expres...
Source: Current Biology - September 20, 2023 Category: Biology Authors: Pan Zhu Michael Schon Julia Questa Michael Nodine Caroline Dean Source Type: research
Microbiological evaluation of homemade mayonnaise and self-serve acai sold in Aragua ína, Tocantins
In this study, samples of homemade spiced mayonnaise and self-serve acai sold in the city of Araguaína, Tocantins, Brazil were analyzed for microbiological contaminants. Acai was collected from 10 stores, one sample from each store, and tested for mold, yeast, and coliforms, as well as coliform identification and total and thermotolerant coliform counts. Mayonnaise was collected from 20 snack bars, one sample from each. These samples were inoculated on MacConkey and Salmonella Shigella agar plates, and the plates were analyzed for growth. Salmonella spp. were detected in some Mayonnaise samples, and coliforms were detecte...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: M J M Paiva M L R Silva M R Alcantara F B S Santos J V R Costa R F Diogo L T F Silva A L Santos E H S Guedes P O Vellano C C R G N Magalh ães I A M Damasceno Source Type: research
Foliar application of silicon sources and shading levels in Peltophorum dubium (Spreng.) Taub
Braz J Biol. 2023 Sep 18;83:e274475. doi: 10.1590/1519-6984.274475. eCollection 2023.ABSTRACTDepending on the intensity and ecological successional classification of plants, light availability can become an unfavorable condition for producing high-quality seedlings. We hypothesized that applying silicon sources might contribute to inducing tolerance to different shading levels for Peltophorum dubium (Spreng.) Taub. seedlings. Two independent experiments were developed: I) the application of five doses of silicon oxide (SiO2: 0.0; 1.0; 2.0; 4.0; and 6.0 g L-1); and II) the application of five doses of potassium silicate (K2...
Source: Braz J Biol - September 20, 2023 Category: Biology Authors: V W Trovato S C Santos G D Mar C C Santos N F Corr êa P S Zomerfeld E P Torales Source Type: research
Effects of management objectives and rules on marine conservation outcomes
This article is protected by copyright. All rights reserved.PMID:37728514 | DOI:10.1111/cobi.14156
Source: Conservation Biology - September 20, 2023 Category: Biology Authors: Natalie C Ban Emily S Darling Georgina G Gurney Whitney Friedman Stacy D Jupiter W Peni Lestari Irfan Yulianto Sinta Pardede Sukma A R Tarigan Puji Prihatiningsih Sangeeta Mangubhai Waisea Naisilisili Sirilo Dulunaqio Josheena Naggea Ravaka Ranaivoson Ver Source Type: research
Greater male variability in daily energy expenditure develops through puberty
Biol Lett. 2023 Sep;19(9):20230152. doi: 10.1098/rsbl.2023.0152. Epub 2023 Sep 20.ABSTRACTThere is considerably greater variation in metabolic rates between men than between women, in terms of basal, activity and total (daily) energy expenditure (EE). One possible explanation is that EE is associated with male sexual characteristics (which are known to vary more than other traits) such as musculature and athletic capacity. Such traits might be predicted to be most prominent during periods of adolescence and young adulthood, when sexual behaviour develops and peaks. We tested this hypothesis on a large dataset by comparing ...
Source: Biology Letters - September 20, 2023 Category: Biology Authors: Lewis G Halsey Vincent Careau Philip N Ainslie Heliodoro Alem án-Mateo Lene F Andersen Liam J Anderson Leonore Arab Issad Baddou Linda Bandini Kweku Bedu-Addo Ellen E Blaak Stephane Blanc Alberto G Bonomi Carlijn V C Bouten Pascal Bovet Soren Brage Macie Source Type: research
Phylogenomics of weevils revisited: data curation and modelling compositional heterogeneity
Biol Lett. 2023 Sep;19(9):20230307. doi: 10.1098/rsbl.2023.0307. Epub 2023 Sep 20.ABSTRACTWeevils represent one of the most prolific radiations of beetles and the most diverse group of herbivores on land. The phylogeny of weevils (Curculionoidea) has received extensive attention, and a largely satisfactory framework for their interfamilial relationships has been established. However, a recent phylogenomic study of Curculionoidea based on anchored hybrid enrichment (AHE) data yielded an abnormal placement for the family Belidae (strongly supported as sister to Nemonychidae + Anthribidae). Here we reanalyse the genome-scale ...
Source: Biology Letters - September 20, 2023 Category: Biology Authors: Yan-Da Li Michael S Engel Erik Tihelka Chenyang Cai Source Type: research
