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Assessing shorebird mortalities due to razor clam aquaculture at key migratory stopover sites in southeastern China
This article is protected by copyright. All rights reserved.PMID:37706237 | DOI:10.1111/cobi.14185
Source: Conservation Biology - September 14, 2023 Category: Biology Authors: Dan Liang Tong Mu Ziyou Yang Xingli Giam Yudi Wang Jing Li Shangxiao Cai Xuelian Zhang Yixiao Wang Yang Liu David S Wilcove Source Type: research

Conserved copper regulation of the antimicrobial isocyanide brassicicolin A in Alternaria brassicicola
Fungal Genet Biol. 2023 Sep 12:103839. doi: 10.1016/j.fgb.2023.103839. Online ahead of print.ABSTRACTPhytopathogenic Alternaria species are renown for production of toxins that contribute to virulence on host plants. Typically, these toxins belong to well-known secondary metabolite chemical classes including polyketides, non-ribosomal peptides and terpenes. However, the purported host toxin brassicicolin A produced by A. brassicicola is an isocyanide, a chemical class whose genetics and encoding gene structure is largely unknown. The chemical structure of brassicicolin A shows it to have similarity to the recently characte...
Source: Fungal Genetics and Biology - September 14, 2023 Category: Biology Authors: Nischala Nadig Sung Chul Park Jin Woo Bok Nancy P Keller Source Type: research

Methods for dynamic and whole volume imaging of the zebrafish heart
Dev Biol. 2023 Sep 12:S0012-1606(23)00148-3. doi: 10.1016/j.ydbio.2023.09.002. Online ahead of print.ABSTRACTTissue development and regeneration are dynamic processes involving complex cell migration and cell-cell interactions. We have developed a protocol for complementary time-lapse and three-dimensional (3D) imaging of tissue for developmental and regeneration studies which we apply here to the zebrafish cardiac vasculature. 3D imaging of fixed specimens is used to first define the subject at high resolution then live imaging captures how it changes dynamically. Hearts from adult and juvenile zebrafish are extracted and...
Source: Developmental Biology - September 14, 2023 Category: Biology Authors: Isaac Bakis Yuhan Sun Laila Abd Elmagid Xidi Feng Mher Garibyan Joycelyn Yip Fang Zhou Yu Sayali Chowdhary Esteban Fernandez Jingli Cao Megan McCain Ching-Ling Lien Michael Rm Harrison Source Type: research

A sex-specific switch in a single glial cell patterns the apical extracellular matrix
Curr Biol. 2023 Sep 8:S0960-9822(23)01126-0. doi: 10.1016/j.cub.2023.08.046. Online ahead of print.ABSTRACTApical extracellular matrix (aECM) constitutes the interface between every tissue and the outside world. It is patterned into diverse tissue-specific structures through unknown mechanisms. Here, we show that a male-specific genetic switch in a single C. elegans glial cell patterns the overlying aECM from a solid sheet to an ∼200 nm pore, thus allowing a male sensory neuron to access the environment. Using cell-specific genetic sex reversal, we find that this switch reflects an inherent sex difference in the glial ce...
Source: Current Biology - September 14, 2023 Category: Biology Authors: Wendy Fung Taralyn M Tan Irina Kolotuev Maxwell G Heiman Source Type: research

Prediction error in models of adaptive behavior
Curr Biol. 2023 Sep 6:S0960-9822(23)01122-3. doi: 10.1016/j.cub.2023.08.043. Online ahead of print.ABSTRACTPavlovian conditioning is evident in every species in which it has been assessed, and there is a consensus about its interpretation across behavioral,1,2 brain,3,4,5,6 and computational analyses7,8,9,10,11: conditioned behavior reflects the formation of a directional associative link from the memory of one stimulus (e.g., a visual stimulus) to another (e.g., food), with learning stopping when there is no error between the prediction generated by the visual stimulus and what happens next (e.g., food). This consensus fa...
Source: Current Biology - September 14, 2023 Category: Biology Authors: Victor M Navarro Dominic M Dwyer Robert C Honey Source Type: research

Dietary Effects of Selenium Nanoparticles on Growth Performance, Survival Rate, Chemical Composition, and Muscle Bioaccumulation of Nile Tilapia (Oreochromis niloticus)
This study evaluated the effect of selenium nanoparticles on growth performance, survival rate, chemical composition, and bioaccumulation of selenium in the muscle of Nile tilapia (Oreochromis niloticus). Fish with an average weight of 33.1 ± 1.0 g were distributed in 12 fiberglass tanks and fed for 56 days with different levels of selenium nanoparticles, 0, 0.5, 1, and 2 mg/kg of diet, considered as control, T1, T2, and T3, respectively. Body weight increase (BWI), specific growth rate (SGR), and food conversion ratio (FCR) were significantly influenced by 2 mg/kg of selenium nanoparticles compared to the other treatment...
Source: Biological Trace Element Research - September 14, 2023 Category: Biology Authors: Shervin Sheikh Fariborz Ghojaghi Afshin Ghelichi Sarah Jorjani Source Type: research

Illuminating the path to shoot meristem regeneration: Molecular insights into reprogramming cells into stem cells
Curr Opin Plant Biol. 2023 Sep 13:102452. doi: 10.1016/j.pbi.2023.102452. Online ahead of print.ABSTRACTPlant cells possess the ability to dedifferentiate and reprogram into stem cell-like populations, enabling the regeneration of new organs. However, the maintenance of stem cells relies on specialized microenvironments composed of distinct cell populations with specific functions. Consequently, the regeneration process necessitates the orchestrated regulation of multiple pathways across diverse cellular populations. One crucial pathway involves the transcription factor WUSCHEL HOMEOBOX 5 (WOX5), which plays a pivotal role...
Source: Current Opinion in Plant Biology - September 14, 2023 Category: Biology Authors: Yetkin Çaka Ince Keiko Sugimoto Source Type: research

The stomatal fates: Understanding initiation and enforcement of stomatal cell fate transitions
Curr Opin Plant Biol. 2023 Sep 12:102449. doi: 10.1016/j.pbi.2023.102449. Online ahead of print.ABSTRACTIn the stomatal lineage, repeated arcs of initiation, stem-cell proliferation, and terminal cell fate commitment are displayed on the surface of aerial organs. Over the past two decades, the core transcription and signaling elements that guide cell divisions, patterning, and fate transitions were defined. Here we highlight recent work that extends the core using a variety of cutting-edge techniques in different plant species. New work has discovered transcriptional circuits that initiate and reinforce stomatal fate trans...
Source: Current Opinion in Plant Biology - September 14, 2023 Category: Biology Authors: Margot E Smit Dominique C Bergmann Source Type: research

Supporting nonlinear careers to diversify science
by Anna L. Vlasits, Monique L. Smith, Maria Maldonado, Simone Brixius-Anderko Nonlinear careers through academia are increasingly common, but funding agencies and search committees penalize these paths. Why do scientists stray from the beaten path, how do they contribute to science, and how do we level the playing field? Those who follow non-linear career trajectories often face disadvantages in academia. This Perspective looks at why individuals might choose non-linear careers and how these benefit diversity in science.
Source: PLoS Biology: Archived Table of Contents - September 14, 2023 Category: Biology Authors: Anna L. Vlasits Source Type: research

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