Article
Endocrinology & Metabolism
Elias Taylor, Hannah Wynen, Andreas Heyland
Summary: Thyroid hormones have diverse physiological and developmental functions in animals and can activate both genomic and non-genomic signaling pathways. In sea urchin development, thyroid hormones regulate gene expression through both genomic and non-genomic mechanisms, with genomic signaling being more prominent during later stages of larval development.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Fisheries
Jingxian Sun, Li Liu, Jian Song, Yaoyao Zhan, Weijie Zhang, Bin Wang, Baojing Zhang, Yaqing Chang
Summary: Disease outbreaks are common in cultured sea urchins from China, with two new strains of Vibrio species identified in diseased sea urchins. These strains exhibit different virulence and antimicrobial susceptibility, with one strain showing greater pathogenicity and specific sensitivity to certain antibiotics.
AQUACULTURE REPORTS
(2021)
Article
Immunology
Megan A. Barela Hudgell, Leon Grayfer, L. Courtney Smith
Summary: The sea urchin immune cell populations undergo dynamic changes in response to distinct immune stimuli and injury, particularly driven by the responses of large phagocyte populations.
FRONTIERS IN IMMUNOLOGY
(2022)
Article
Fisheries
Xiaomei Chi, Xiyuan Huang, Fangyuan Hu, Mingfang Yang, Donghong Yin, Ruihuan Tian, Xiang Li, Yaqing Chang, Chong Zhao
Summary: The present study found that the segregation with two layers of PVC net is an effective approach to preventing the transmission of black mouth disease of S. intermedius. However, the effectiveness of the complete segregation is greatly reduced if the diseased/dead sea urchins are not removed in time. Air exposure deteriorates the transmission of the black mouth disease.
Article
Multidisciplinary Sciences
Joshua G. Smith, Sabrina C. Garcia
Summary: The study found that sea urchins adapt to food-limited environments by adjusting energy allocation between reproductive capacity and modifications to their foraging apparatus. In sea urchin barrens, reproductive capacity was lower and the morphology of the foraging apparatus was more elongate.
Article
Biochemistry & Molecular Biology
Heng Wang, Wenfei Zhao, Beichen Ding, Yang Zhang, Xiaofang Huang, Xiaoyu Liu, Rantao Zuo, Yaqing Chang, Jun Ding
Summary: The study conducted untargeted lipidomics analysis on the sea urchin gonad and identified 11 PUFAs in Strongylocentrotus intermedius, which accounted for the majority of the total fatty acid content. The OPLS-DA model was used to distinguish significant differences in PUFA abundances between male and female sea urchins. Phosphatidylcholine was found to be more predominant in females, while triglycerides were more predominant in males, serving as potential markers for distinguishing high levels of PUFAs.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
(2021)
Article
Fisheries
Mingfang Yang, Fangyuan Hu, Xiaofei Leng, Xiaomei Chi, Donghong Yin, Jingyun Ding, Xiang Li, Rantao Zuo, Yaqing Chang, Chong Zhao
Summary: The study found that red light significantly inhibits the growth of Strongylocentrotus intermedius, while sea urchins under blue light have higher righting response time and foraging time.
Article
Environmental Sciences
Jannine D. Chamorro, Adriane M. McDonald, Gretchen E. Hofmann
Summary: The kelp forests of the California Current System have experienced prolonged marine heatwave (MHW) events that coincide with the life history events of many marine invertebrates. This study focused on the purple sea urchin and examined the effects of MHWs on gametogenesis and whether it induces transgenerational plasticity in thermal tolerance. The results showed that embryos from MHW-acclimated females had higher thermal tolerance and increased protein concentration in their eggs.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Fisheries
Yongjia Pan, Zelong Zhao, Zunchun Zhou
Summary: MiRNA transcriptome analysis of sea urchin larvae exposed to CO2-driven seawater acidification identified numerous novel miRNAs and predicted target genes related to growth, spicule formation, and skeletogenesis, providing insights into the impact of ocean acidification on S. purpuratus larvae.
AQUACULTURE RESEARCH
(2021)
Article
Environmental Sciences
Boqiong Wu, Renhe Jiao, Dongyao Cui, Tanjun Zhao, Jian Song, Yaoyao Zhan, Yaqing Chang
Summary: Comparative miRNA and mRNA transcriptome analyses of sea urchins with different gonadal colors revealed genes and miRNAs associated with sex and gonadal coloration. These findings are important for understanding the process of sea urchin gonad coloration and improving the quality of sea urchins.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biology
Morgan McDonald, Natalie Paige Griffin, Emma Howell, Dingchen Li, Sophia Harnew-Spradley, Patrick Rodriguez, Abigail Lancaster, Feza Umutoni, Jordan Besh, Chris Shelley
Summary: Sea urchins are genetically closer to vertebrates but lack a brain. Little is known about the neurobiology of adult sea urchins. In this study, the effects of neurotransmitter receptor antagonists on the righting response of sea urchins were investigated. The results showed that glycine and adrenergic receptors are involved in tube foot movement, while dopamine receptors are involved in the neural processing of righting behavior.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Fisheries
Tanjun Zhao, Jingxian Sun, Yaoyao Zhan, Li Liu, Jian Song, Weijie Zhang, Yaqing Chang
Summary: The study revealed differences in gonadal traits and metabolites between distant sea urchin hybrids and their parental purebred offspring, suggesting the hybrids may be a prospective aquaculture urchin species.
Article
Fisheries
Chengda Li, Tanjun Zhao, Liyuan Ren, Dongyao Cui, Yaoyao Zhan, Yaqing Chang
Summary: We cloned and characterized a novel GDH homolog, SiGDH, from Strongylocentrotus intermedius, and found tissue-specific differences in its expression patterns and enzyme activity levels, with the highest expression and activity in the gonad. Changes in SiGDH expression and activity were observed in the gonad after both gradual and acute heat stress.
AQUACULTURE REPORTS
(2023)
Article
Fisheries
Masataka Ishii, Tatsuya Unuma, Akio Masadate, Hiroshi Hoshikawa, Kazuhiro Takahashi, Shinichi Kosaka, Atsunori Masuda, Katsusuke Murakami
Summary: This study investigated the effects of photoperiod control on promoting gonadal maturation in Strongylocentrotus intermedius. It was found that accelerated photoperiods can advance maturation by 2-3 months and the collected gametes can develop normally into juveniles.
Article
Fisheries
Satomi Takagi, Natsuki Hasegawa, Tsuyoshi Watanabe, Yuichi Sakai, Tatsuya Unuma
Summary: This study aimed to investigate the protein requirement for somatic growth and gonad production of the sea urchin Strongylocentrotus intermedius at different life stages. The results showed that the protein level did not significantly affect body weight growth, but it was correlated with the growth of gonads. Previous studies overestimated the protein requirement due to protein leaching during seawater immersion. Therefore, the protein content in sea urchin feed diets can be considerably reduced.
