scholarly journals Responses of Antioxidant Defense and Immune Gene Expression in Early Life Stages of Large Yellow Croaker (Pseudosciaena crocea) Under Methyl Mercury Exposure

2018 ◽  
Vol 9 ◽  
Author(s):  
Fangzhu Wu ◽  
Wei Huang ◽  
Qiang Liu ◽  
Xiaoqun Xu ◽  
Jiangning Zeng ◽  
...  
Keyword(s):  
Gene Expression ◽  
Early Life ◽  
Methyl Mercury ◽  
Antioxidant Defense ◽  
Large Yellow Croaker ◽  
Immune Gene ◽  
Life Stages ◽  
Pseudosciaena Crocea ◽  
Early Life Stages ◽  
Immune Gene Expression

Effects of estrogens and antiestrogens on gene expression of fathead minnow (Pimephales promelas) early life stages

2011 ◽  
Vol 26 (2) ◽  
pp. 195-206 ◽  
Author(s):  
Sonia M. Johns ◽  
Nancy D. Denslow ◽  
Michael D. Kane ◽  
Karen H. Watanabe ◽  
Edward F. Orlando ◽  
...  
Keyword(s):  
Gene Expression ◽  
Early Life ◽  
Fathead Minnow ◽  
Pimephales Promelas ◽  
Life Stages ◽  
Early Life Stages

DNA methylation and gene expression alterations in zebrafish early-life stages exposed to the antibacterial agent triclosan

2018 ◽  
Vol 243 ◽  
pp. 1867-1877 ◽  
Author(s):  
Elodie Falisse ◽  
Bertrand Ducos ◽  
Peter A. Stockwell ◽  
Ian M. Morison ◽  
Aniruddha Chatterjee ◽  
...  
Keyword(s):  
Gene Expression ◽  
Dna Methylation ◽  
Early Life ◽  
Antibacterial Agent ◽  
Life Stages ◽  
Early Life Stages ◽  
Gene Expression Alterations

scholarly journals The early life stages of the orange-spotted grouper, Epinephelus coioides, exhibit robustness to hypercapnia

2020 ◽  
Vol 77 (3) ◽  
pp. 1066-1074
Author(s):  
Joshua Lonthair ◽  
Pung-Pung Hwang ◽  
Andrew J Esbaugh
Keyword(s):  
Gene Expression ◽  
Heart Rate ◽  
Early Life ◽  
Evolutionary Process ◽  
Elevated Pco2 ◽  
Epinephelus Coioides ◽  
Life Stages ◽  
Early Life Stages ◽  
Acid Base ◽  
Regulatory Machinery

Abstract Ocean acidification (OA) and other climate change-induced environmental alterations are resulting in unprecedented rates of environmental degradation. This environmental change is generally thought to be too fast for adaptation using evolutionary process dependent on natural selection, and thus, resilience may be related to the presence of existing tolerant genotypes and species. Estuaries undergo natural partial pressure carbon dioxide (pCO2) fluctuations, with levels regularly exceeding predicted end of the century values. In this study, we use the estuarine orange-spotted grouper (Epinephelus coioides) to explore the intrinsic resilience to elevated pCO2. Our sensitivity endpoints included: survival, heart rate, growth, and yolk consumption. Furthermore, we attempted to determine whether their acid–base regulatory machinery was plastic in response to elevated pCO2 by analysing the gene expression of key transporters and ionocyte density. Survival was not significantly altered by exposure to elevated pCO2. Interestingly, the heart rate was significantly elevated at both 1500 and 3100 μatm exposure. However, other metrics of energetic consumption, such as yolk consumption and growth, were not significantly altered. Furthermore, we found no changes in gene expression in vha, nhe3, and nbc, as well as ionocyte density at elevated pCO2. Overall, these results support the hypothesis that estuarine species are resilient to the impacts of OA.

scholarly journals Combined responses of primary coral polyps and their algal endosymbionts to decreasing seawater pH

2021 ◽  
Vol 288 (1953) ◽  
pp. 20210328
Author(s):  
Federica Scucchia ◽  
Assaf Malik ◽  
Paul Zaslansky ◽  
Hollie M. Putnam ◽  
Tali Mass
Keyword(s):  
Gene Expression ◽  
Early Life ◽  
Gene Expression Analysis ◽  
Life Stages ◽  
Early Life Stages ◽  
Adaptive Potential ◽  
Coral Recruitment ◽  
Seawater Ph ◽  
Transcriptional Changes ◽  
Ph Conditions

With coral reefs declining globally, resilience of these ecosystems hinges on successful coral recruitment. However, knowledge of the acclimatory and/or adaptive potential in response to environmental challenges such as ocean acidification (OA) in earliest life stages is limited. Our combination of physiological measurements, microscopy, computed tomography techniques and gene expression analysis allowed us to thoroughly elucidate the mechanisms underlying the response of early-life stages of corals, together with their algal partners, to the projected decline in oceanic pH. We observed extensive physiological, morphological and transcriptional changes in surviving recruits, and the transition to a less-skeleton/more-tissue phenotype. We found that decreased pH conditions stimulate photosynthesis and endosymbiont growth, and gene expression potentially linked to photosynthates translocation. Our unique holistic study discloses the previously unseen intricate net of interacting mechanisms that regulate the performance of these organisms in response to OA.

scholarly journals Combined responses of primary coral polyps and their algal endosymbionts to decreasing seawater pH

2021 ◽  
Author(s):  
Federica Scucchia ◽  
Assaf Malik ◽  
Paul Zaslansky ◽  
Hollie M Putnam ◽  
Tali Mass
Keyword(s):  
Gene Expression ◽  
Early Life ◽  
Gene Expression Analysis ◽  
Life Stages ◽  
Early Life Stages ◽  
Adaptive Potential ◽  
Coral Recruitment ◽  
Seawater Ph ◽  
Transcriptional Changes ◽  
Ph Conditions

With coral reefs declining globally, resilience of these ecosystems hinges on successful coral recruitment. However, knowledge of the acclimatory and/or adaptive potential in response to environmental challenges such as ocean acidification (OA) in earliest life stages is limited. Our combination of physiological measurements, microscopy, computed tomography techniques and gene expression analysis allowed us to thoroughly elucidate the mechanisms underlying the response of early life stages of corals, together with their algal partners, to the projected decline in oceanic pH. We observed extensive physiological, morphological and transcriptional changes in surviving recruits, and the transition to a less-skeleton/more-tissue phenotype. We found that decreased pH conditions stimulate photosynthesis and endosymbiont growth, and gene expression potentially linked to photosynthates translocation. Our unique holistic study discloses the previously unseen intricate net of interacting mechanisms that regulate the performance of these organisms in response to OA.

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