Regular ArticleHeat Stress-Activated, Calcium-Dependent Nitric Oxide Synthase in Sponges
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Diversity and functional roles of the symbiotic microbiome associated to marine sponges off Karah Island, Terengganu, Malaysia
2023, Regional Studies in Marine ScienceNitric oxide signaling controls collective contractions in a colonial choanoflagellate
2022, Current BiologyCitation Excerpt :These results further support the existence of NO/cGMP signaling in C. flexa and is consistent with it being mediated (at least in part) by Cf sGC1. In animals, NO signaling can be induced by a broad range of stimuli, which include chemical signals (for example, acetylcholine in mammalian blood vessels35), mechanical cues (for example, shear stress in blood vessels36), or heat shocks.37–40 Interestingly, collar contractions in choanoflagellates can often be induced by mechanical stimuli, such as flow and touch.41–44
Transcriptional changes of Pacific oyster Crassostrea gigas reveal essential role of calcium signal pathway in response to CO<inf>2</inf>-driven acidification
2020, Science of the Total EnvironmentCitation Excerpt :Its products NO can directly or indirectly modulate the activity of Ca2+ channels or can rapidly react with O2− (Mazars et al., 2010). Compared with vertebrate, there is only one NOS in C. gigas (Jiang et al., 2016), and the invertebrate NOS was reported to respond to a variety of environmental stresses such as heat, pollution, pH, bacteria and air exposure (Chen, 2017; Giovine et al., 2001; Jiang et al., 2013; Novas et al., 2007; Smith et al., 2000). Therefore these altered mRNA/protein expressions could provide an explanation for the reduced oxidative stresses to long-term CO2 exposure.
Identification and molecular characterization of nitric oxide synthase (NOS) gene in the intertidal copepod Tigriopus japonicus
2016, GeneCitation Excerpt :The insect NOS system and its rapid inducibility in response to many different pathogens have been extensively studied (Nappi et al., 2000; Rivero, 2006; Davies, 2000; Marmaras and Lampropoulou, 2009; Park et al., 2013). NOS is also a pivotal component of the innate immune system and a cellular signal of environmental stress in aquatic invertebrates (Giovine et al., 2001; Palumbo, 2005). Particularly in aquatic crustaceans, LPS-triggered inducibility of NOS activity and NOS transcript level have been highlighted in the haemocyte tissues that play a crucial role in the innate immunity of invertebrates (Rodríguez-Ramos et al., 2010, 2011; Yao et al., 2010; Li et al., 2012; Jiang et al., 2013).
Immunotoxicity of washing soda in a freshwater sponge of India
2015, Ecotoxicology and Environmental SafetyCitation Excerpt :Initial increase in the generation of superoxide anion and its subsequent decrease was indicative to a typical stress response of sponge cells under the exposure of sodium carbonate. Nitric oxide is considered as a signaling molecule generated in sponge cells during the conversion of l-arginine to l-citrulline, by nitric oxide synthase (Giovine et al., 2001). Nitric oxide plays a significant role in generating cytotoxic response against engulfed pathogens.
Stress response to cadmium and manganese in Paracentrotus lividus developing embryos is mediated by nitric oxide
2014, Aquatic ToxicologyCitation Excerpt :The involvement of NO in the stress response has also been reported in other organisms. Heat stress activated NO production in sponges (Giovine et al., 2001), and salinity and light stress gave rise to NO bursts in culture media of marine microalgae (Zhang et al., 2006). NO was also a central player in the surveillance system in a marine diatom in response to decadienal treatment (Vardi et al., 2006) and in coral bleaching (Bouchard and Yamasaki, 2008).
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