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Low humidity enhances thermotolerance in Caenorhabditis elegans. 低湿度增强秀丽隐杆线虫的耐热性。
microPublication biology Pub Date : 2024-11-23 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001404
Michelle E Brown, Diego A Hernandez-Urbina, Caroline Kumsta
{"title":"Low humidity enhances thermotolerance in <i>Caenorhabditis elegans</i>.","authors":"Michelle E Brown, Diego A Hernandez-Urbina, Caroline Kumsta","doi":"10.17912/micropub.biology.001404","DOIUrl":"10.17912/micropub.biology.001404","url":null,"abstract":"<p><p>Humidity is an important environmental factor that causes physiological changes in organisms. In humans, high humidity disrupts thermoregulation by limiting heat dissipation, leading to heat stress. While <i>Caenorhabditis elegans</i> lacks comparable thermoregulatory systems, humidity may still impact its heat tolerance by affecting cellular stress responses. We tested this by subjecting <i>C. elegans</i> to heat shock under different humidity conditions and found that lower humidity during heat shock improved survival compared to higher humidity. These findings demonstrate that humidity is an important variable affecting thermotolerance in <i>C. elegans</i> and should be standardized in heat-stress experiments.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11625312/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142803935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Drosophila kikkawai ortholog of the D. melanogaster Muller D element ash1. kikkawai果蝇D. melanogaster Muller D元素的同源性。
microPublication biology Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001322
Mia Mo, Destiny Sabb, Larissa LoBello, Kayla Chambers, Kacie Kershaw, Cameron Welles, Joshua Kurucz, Caleb Rhyne, Angel Nichols, John Stanga, James E J Bedard, Cindy Arrigo
{"title":"<i>Drosophila kikkawai</i> ortholog of the <i>D. melanogaster</i> Muller D element <i>ash1</i>.","authors":"Mia Mo, Destiny Sabb, Larissa LoBello, Kayla Chambers, Kacie Kershaw, Cameron Welles, Joshua Kurucz, Caleb Rhyne, Angel Nichols, John Stanga, James E J Bedard, Cindy Arrigo","doi":"10.17912/micropub.biology.001322","DOIUrl":"10.17912/micropub.biology.001322","url":null,"abstract":"<p><p>The <i>Drosophila kikkawai</i> feature with Gene ID 108083276 was determined to be an ortholog of <i>Drosophila melanogaster</i> absent, small, or homeotic discs 1 ( <i>ash1</i> ). Two isoforms, ash1-PB and ash1-PC, were constructed on the <i>D. kikkawai</i> Muller D element using the GEP annotation protocol. The second coding exon of <i>D. kikkawai</i> <i>ash1</i> includes an insertion translated into 18 additional amino acids compared to the <i>D. melanogaster</i> protein and is supported by RNA-Seq coverage, the lack of splice junction predictions, and multiple gene predictors. The first intron in both isoforms of <i>D. kikkawaiash1</i> contains a well conserved non-canonical GC splice site.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11624501/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142803933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Filial cannibalism influences the link between gonadal development and antioxidant function in a mouthbrooding cichlid fish. 子代同类相食影响口育慈鲷性腺发育与抗氧化功能之间的联系。
microPublication biology Pub Date : 2024-11-20 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001352
Hailey A Hartman, Howard A Mitchell, Peter D Dijkstra
{"title":"Filial cannibalism influences the link between gonadal development and antioxidant function in a mouthbrooding cichlid fish.","authors":"Hailey A Hartman, Howard A Mitchell, Peter D Dijkstra","doi":"10.17912/micropub.biology.001352","DOIUrl":"10.17912/micropub.biology.001352","url":null,"abstract":"<p><p>In females of the mouthbrooding cichlid fish <i>Astatotilapia burtoni</i> , we recently found a positive relationship between liver antioxidant function and filial cannibalism. Here, we manipulated the level of fry consumption in <i>A. burtoni</i> females to assess how the level of fry consumption affects liver antioxidant function. Feeding treatment did not affect liver antioxidant function, but feeding treatment significantly influenced the relationship between gonadal development and antioxidant function. Future studies should isolate the effects of gonadal development and fry consumption on antioxidant function.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11618369/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142788032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The mechanoreceptors in hatchling and adult Elasmobranch skin. 幼体和成体弹力枝皮肤的机械感受器。
microPublication biology Pub Date : 2024-11-19 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001213
Angel Amarales, Rebecca Meng, Marco Perez, Michelle Bonilla, Jazmir Hernandez, Maria Elena de Bellard
{"title":"The mechanoreceptors in hatchling and adult Elasmobranch skin.","authors":"Angel Amarales, Rebecca Meng, Marco Perez, Michelle Bonilla, Jazmir Hernandez, Maria Elena de Bellard","doi":"10.17912/micropub.biology.001213","DOIUrl":"10.17912/micropub.biology.001213","url":null,"abstract":"<p><p>The skin is the most extensive organ in vertebrates, composed of two layers: the epidermis and the dermis. Sensory axons originating from the dorsal root ganglia innervate the skin mechanoreceptors in the dermis. Elasmobranchs, which appeared 380 million years ago, are characterized by rough skin composed of dermal denticles. While we know about the epidermis and dermis of elasmobranchs, we do not know much about the presence or abundance of mechanoreceptors in their skin. Using the classic histological hematoxylin and eosin method, we examined the skins of hatchling embryos and adults Batoidea (skates and rays) and Selachimorpha (modern sharks). Our histology findings provide substantial evidence to identify structures with similar morphology to traditional mammalian and reptilian mechanoreceptors like Pacinian and Meissner corpuscles. An interesting observation was the presence of Pacinian in the skin of Batoidea but not in the skin of a Selachimorpha Squalus shark.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11615667/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mutations in TGF-beta signaling pathway components regulate the Drosophila melanogaster lifespan. tgf - β信号通路组分的突变调节果蝇的寿命。
microPublication biology Pub Date : 2024-11-19 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001333
Virginia Fife, Margarita Kyza-Karavioti, Ioannis Eleftherianos
{"title":"Mutations in TGF-beta signaling pathway components regulate the <i>Drosophila melanogaster</i> lifespan.","authors":"Virginia Fife, Margarita Kyza-Karavioti, Ioannis Eleftherianos","doi":"10.17912/micropub.biology.001333","DOIUrl":"10.17912/micropub.biology.001333","url":null,"abstract":"<p><p>The evolutionary conserved transforming growth factor beta (TGF-β) signaling pathway participates in the regulation of several cellular functions and tissue homeostasis. In the model <i>Drosophila melanogaster</i> , the two TGF-β signaling pathway branches Bone Morphogenic Protein (BMP) and Activin are involved in important developmental and immune processes. Here we examine the effect of mutations in various BMP and Activin signaling molecules on the fly lifespan. We find that loss-of-function fly mutants for distinct Activin and BMP components differentially modulate the fly lifespan. These results indicate that the TGF-β signaling pathways act as regulators of lifespan in the adult <i>D. melanogaster</i> .</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11615669/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dietary restriction mitigates phenotypes induced by traumatic brain injury (TBI) in female Drosophila. 饮食限制减轻雌性果蝇创伤性脑损伤（TBI）诱导的表型。
microPublication biology Pub Date : 2024-11-19 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001364
Rebecca Ray, Rebecca Delventhal
{"title":"Dietary restriction mitigates phenotypes induced by traumatic brain injury (TBI) in female <i>Drosophila</i>.","authors":"Rebecca Ray, Rebecca Delventhal","doi":"10.17912/micropub.biology.001364","DOIUrl":"10.17912/micropub.biology.001364","url":null,"abstract":"<p><p>TBI occurs when sudden trauma to the head causes damage to the brain, leading to long-term health problems. Many features of TBI can be replicated in <i>Drosophila</i> , making them an ideal model. Previous research on male flies showed that TBI decreases lifespan and locomotion, both of which were ameliorated by dietary restriction (DR). Considering female flies are known to be more responsive to DR, we examined whether DR ameliorates the effect of TBI in females. We found DR significantly extended lifespan and improved climbing ability at 2 weeks post-TBI, consistent with prior results in males.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11615668/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
tRNA, yRNA, and rRNA fragment excisions do not involve canonical microRNA biogenesis machinery. tRNA， yRNA和rRNA片段切除不涉及标准的microRNA生物发生机制。
microPublication biology Pub Date : 2024-11-19 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001332
Noel L Godang, Anita D Nguyen, Jeffrey D DeMeis, Sunita S Paudel, Nick J Campbell, Kingston J Barnes, Kahyeon Jeon, Alayla S Roussell, Kimberly A Gregson, Glen M Borchert
{"title":"tRNA, yRNA, and rRNA fragment excisions do not involve canonical microRNA biogenesis machinery.","authors":"Noel L Godang, Anita D Nguyen, Jeffrey D DeMeis, Sunita S Paudel, Nick J Campbell, Kingston J Barnes, Kahyeon Jeon, Alayla S Roussell, Kimberly A Gregson, Glen M Borchert","doi":"10.17912/micropub.biology.001332","DOIUrl":"10.17912/micropub.biology.001332","url":null,"abstract":"<p><p>The excision of specific tRNA-derived small RNAs (tsRNAs), yRNA-derived small RNAs (ysRNAs) and ribosomal RNA-derived small RNAs (rsRNAs) is now well established. Several reports have suggested many of these fragments function much like traditional microRNAs (miRNAs). That said, whereas the expressions of the majority of appreciably expressed miRNAs in HCT116 colon cancer cells are significantly decreased in individual knockouts (KOs) of DROSHA, DGCR8, XPO5, and DICER, on average, only 3.5% of tsRNA, ysRNA, and rsRNA expressions are impaired. Conversely, tsRNA, ysRNA, and rsRNA expressions are significantly increased in each of these KOs as compared to WT. As such, although DICER has been suggested to be involved with the expression of specific tsRNAs, ysRNAs, and rsRNAs, our study finds no evidence supporting the involvement of any of these canonical miRNA biogenesis enzymes in their expressions.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11615671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seventeen antibiotic-producing bacteria isolates found across four freshwater environments. 在四种淡水环境中发现了17种产生抗生素的细菌。
microPublication biology Pub Date : 2024-11-14 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001353
Caymen Hoffman, Edgar Caracoza, Kevin Kyaw, Kristina Blanke
{"title":"Seventeen antibiotic-producing bacteria isolates found across four freshwater environments.","authors":"Caymen Hoffman, Edgar Caracoza, Kevin Kyaw, Kristina Blanke","doi":"10.17912/micropub.biology.001353","DOIUrl":"10.17912/micropub.biology.001353","url":null,"abstract":"<p><p>Antibiotics are produced by microorganisms as defense mechanisms against bacteria and have treated bacterial infections for decades. Most of the current antibiotics are extracted from soil bacteria, and no new antibiotic class has been found in nearly 40 years. However, antibiotic-producing bacteria were discovered on tree bark, emphasizing that other environments should be explored for these bacteria. This research identified a new environment for antibiotic-producing bacteria-freshwater. Bacteria from freshwater sources in Wisconsin were cultured and screened against nine tester bacteria. All four water sources contained antibiotic-producing bacteria; therefore, freshwater environments should be further studied for novel antibiotic-producing bacteria.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11605432/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142775258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The AFD-expressed SRTX-1 GPCR does not contribute to AFD thermosensory functions. AFD表达的SRTX-1 GPCR不参与AFD的热感觉功能。
microPublication biology Pub Date : 2024-11-13 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001382
Laurie Chen, Nathan Harris, Piali Sengupta
{"title":"The AFD-expressed SRTX-1 GPCR does not contribute to AFD thermosensory functions.","authors":"Laurie Chen, Nathan Harris, Piali Sengupta","doi":"10.17912/micropub.biology.001382","DOIUrl":"10.17912/micropub.biology.001382","url":null,"abstract":"<p><p>Temperature experience-regulated gene expression changes have been shown to underlie long-term adaptation of the response threshold of the AFD thermosensory neuron pair, and contribute to thermotaxis behavioral plasticity in <i>C. elegans</i> . We previously showed that the SRTX-1 GPCR is expressed primarily in AFD and is localized to their sensory endings. Here we find that SRTX-1 levels are regulated by the animal's temperature experience. However, loss or overexpression of <i>srtx-1</i> does not affect thermotaxis behaviors or examined temperature-evoked calcium responses in AFD. Our observations suggest that SRTX-1 may modulate AFD responses and behavior under defined temperature conditions, or in response to specific environmental stimuli.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11603155/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142752590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genome sequences of Arthrobacter globiformis phages JuneStar and Pumpkins in Bismarck, ND. 北达科他州俾斯麦的球形节杆菌噬菌体 JuneStar 和南瓜的基因组序列。
microPublication biology Pub Date : 2024-11-12 eCollection Date: 2024-01-01 DOI: 10.17912/micropub.biology.001378
Madeline Dojs, Christine Fleischacker, Celia Brekken, Ethan Emineth, Allison Hughes, Sarah Rodriguez-Brandon, Corrina Vigness
{"title":"Genome sequences of <i>Arthrobacter globiformis</i> phages JuneStar and Pumpkins in Bismarck, ND.","authors":"Madeline Dojs, Christine Fleischacker, Celia Brekken, Ethan Emineth, Allison Hughes, Sarah Rodriguez-Brandon, Corrina Vigness","doi":"10.17912/micropub.biology.001378","DOIUrl":"10.17912/micropub.biology.001378","url":null,"abstract":"<p><p>We report the isolation and characteristics of phages JuneStar and Pumpkins, siphoviruses isolated from soil in Bismarck, ND using <i>Arthrobacter globiformis</i> B2979-SEA. Based on gene content similarity, both phages are assigned to actinobacteriophage cluster AZ1. They encode a putative serine integrase that is conserved across cluster AZ1 phages, suggesting a temperate lifestyle.</p>","PeriodicalId":74192,"journal":{"name":"microPublication biology","volume":"2024 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11600132/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142741673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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