Article
Biology
Maggie Wuerz, Caitlin A. Lawson, Clinton A. Oakley, Malcolm Possell, Shaun P. Wilkinson, Arthur R. Grossman, Virginia M. Weis, David J. Suggett, Simon K. Davy
Summary: The symbiosis between corals and their dinoflagellate symbionts plays a crucial role in supporting coral metabolism and survival. This study investigates how the identity of the symbiont affects the release of BVOCs and the changes in the host microbiome. The findings contribute to our understanding of coral response to climate change and provide a platform for future studies on the metabolic and signaling roles of BVOCs in this symbiosis.
Article
Environmental Sciences
Sebastian G. Gornik, Ira Maegele, Elizabeth A. Hambleton, Philipp A. Voss, Ross F. Waller, Annika Guse
Summary: This study successfully transformed the coral symbiont Breviolum minutum and developed a method for genetic manipulation. The method allows for specific protein expression in dinoflagellate cells and efficient selection of transformed cells, providing new tools to further understand dinoflagellate biology and key aspects of dinoflagellate-coral symbiosis.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biology
Maha J. Cziesielski, Yi Jin Liew, Guoxin Cui, Manuel Aranda
Summary: The heat-stress tolerance of anemone hosts is improved only when they are closely compatible with their algal symbionts. The type of symbiont strongly influences oxidative stress and apoptosis responses, while the overall response to heat stress depends on the compatibility of both partners. The symbiotic relationship is highly fine-tuned towards specific partner combinations and heterologous host-symbiont combinations are less metabolically compatible under stress.
COMMUNICATIONS BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Philipp A. Voss, Sebastian G. Gornik, Marie R. Jacobovitz, Sebastian Rupp, Melanie Doerr, Ira Maegele, Annika Guse
Summary: The mTOR signaling pathway plays a pivotal role in integrating symbiont-derived nutrients into host metabolism and symbiosis stability, allowing symbiotic cnidarians to thrive in challenging environments.
Review
Biochemistry & Molecular Biology
Sabrina L. Rosset, Clinton A. Oakley, Christine Ferrier-Pages, David J. Suggett, Virginia M. Weis, Simon K. Davy
Summary: The molecular signaling between host cnidarians and dinoflagellate endosymbionts in the cnidarian-dinoflagellate symbiosis is poorly understood. Current research focuses on lipids, glycans, reactive species, biogenic volatiles, and noncoding RNA, with potential applications to addressing the coral reef crisis.
TRENDS IN MICROBIOLOGY
(2021)
Article
Biology
Maggie Wuerz, Caitlin A. Lawson, Maiken Ueland, Clinton A. Oakley, Arthur R. Grossman, Virginia M. Weis, David J. Suggett, Simon K. Davy
Summary: The establishment and maintenance of symbiosis between a cnidarian host and its dinoflagellate symbionts is crucial for the success of coral reefs. This study explored the production of biogenic volatile organic compounds (BVOCs) in this symbiosis using gas chromatography-mass spectrometry. The results revealed 152 BVOCs, with differential abundances between symbiotic and aposymbiotic anemones, as well as between symbiotic anemones and cultured dinoflagellates. The findings suggest that symbiosis may have a greater impact on symbiont physiology than host physiology.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Environmental Sciences
Lauren R. R. Bolzan, Alison M. M. Roark
Summary: In cnidarian symbiosis research, it is important to quantify algal density in host tissue. This study compared two methods, in vitro cell counts and in situ cell counts, and found that they have similar precision. Using a fluorescent microscope yielded higher precision than using a light microscope, but it required terminal sampling. In contrast, in situ methods required a more advanced equipment but allowed non-terminal sampling.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Stephane Martinez, Renaud Grover, Christine Ferrier-Pages
Summary: This study investigated the nutrient exchange between coral and symbionts, and found that symbiont starvation is a major cause of symbiotic breakdown leading to coral bleaching. The findings indicate that coral species differ in their ability to supply nutrients to symbionts in the dark, resulting in varying degrees of bleaching.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Microbiology
Ross Joseph, Michelle Lasa, Yonghong Zhou, Nemat O. Keyhani
Summary: The study focused on the metabolic and physiological characteristics of R. lauricola, revealing its relatively restricted carbon utilization, broad sulfur and phosphate utilization, and sensitivities to pH and osmotic pressure that could be rescued by specific compounds.
Article
Microbiology
Immy A. Ashley, Sheila A. Kitchen, Lucy M. Gorman, Arthur R. Grossman, Clinton A. Oakley, David J. Suggett, Virginia M. Weis, Sabrina L. Rosset, Simon K. Davy
Summary: This study analyzed the phosphatidylinositol (PI) signaling pathway in the cnidarian-dinoflagellate symbiosis and found that it is conserved in symbiotic cnidarians and expanded in symbiotic dinoflagellates. The study also identified unique proteins in the symbiotic dinoflagellates that are not found in non-symbiotic unicellular organisms.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Chemistry, Applied
Yan Zhang, Zhaojun Zheng, Chunhuan Liu, Chin-ping Tan, Kui Xie, Yuanfa Liu
Summary: The study compared the lipid profiles and digestibility of freeze-dried and spray-dried goat milk fat globules. Freeze-dried goat milk showed higher levels of monounsaturated fatty acids and lower levels of cholesterol. It also preserved certain long-chain polyunsaturated triacylglycerols better. Additionally, freeze-dried goat milk had more lysophospholipids and showed slower gastric digestion and lower lipolysis levels during gastrointestinal digestion.
Article
Microbiology
Jori E. Graeff, Jeffrey D. Leblond
Summary: Research has found that different dinoflagellate species have distinct lipid exchange patterns during symbiotic relationships, with varying major sterol components. However, closely related species may share common sterols. Differences in available sterol pools exist for different hosts during their relationships with symbiotic dinoflagellates.
Article
Environmental Sciences
Han-Sol Kim, Hyunjun Park, Hui Wang, Taehee Kim, Jang-Seu Ki
Summary: STXs were detected in A. affine Alex02 isolated from the southern coast of Korea, but its toxicity levels were significantly lower than toxic A. catenella Alex03 and A. pacificum Alex05, suggesting a low likelihood of causing PSP incidents in marine environments.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Abdul Qader, Kanwal Rehman, Muhammad Sajid Hamid Akash
Summary: This study investigated the impairment of lipid metabolism induced by lead (Pb) and its amelioration through plant-based therapeutic interventions. Pb-induced hepatotoxicity disrupted the normal levels of antioxidant enzymes, leading to lipid peroxidation. Additionally, Pb toxicity altered the regulation of hormones involved in the synthesis of HMG-CoA reductase, resulting in abnormal levels of serum cholesterol and other lipid molecules. The administration of resveratrol effectively treated Pb toxicity. Overall, this study demonstrated the therapeutic effect of resveratrol in improving Pb-induced lipid metabolism impairment by using vitamin C as a standard intervention.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
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)