Article
Environmental Sciences
Liyan He, Zhiming Yu, Jianan Zhu, Xihua Cao, Xiuxian Song
Summary: This paper employed atomic force microscopy to study the harmful algal bloom species Prorocentrum donghaiense for the first time. The study revealed the typical structures on the cell surfaces and quantified the nanostructures and nanomechanical parameters. Under nitrogen limitation, the cell surface roughness and adhesion decreased, and the elastic modulus increased. These changes reflect the potential alterations in the physiological functions of P. donghaiense cells under external environmental changes.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Na Zhang, Xin Guo, Tongzhu Han, Liju Tan, Qiaona Xue, Jiangtao Wang
Summary: In this study, allelochemicals were extracted and isolated from the filtrate of Phaeodactylum tricornutum, and it was found that these compounds had a significant inhibitory effect on the growth of Prorocentrum donghaiense. One specific compound, substance 6, was identified as having allelopathic activity, providing direct evidence of allelopathy between P. tricornutum and P. donghaiense.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Environmental Sciences
Jinju Ma, Chunyun Zhang, Fuguo Liu, Yin Liu, Yuanyuan Wang, Guofu Chen
Summary: A polymerase chain reaction-nucleic acid chromatography strip (PCR-NACS) method was established for the detection of Prorocentrum donghaiense. The PCR-NACS method is easy, sensitive, and visual, providing a potential new approach for the identification of P. donghaiense in natural water samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biochemical Research Methods
Xin Cao, Zhong Guo, Hualong Wang, Yuelei Dong, Songhui Lu, Qing-Yu He, Xuesong Sun, Gong Zhang
Summary: Harmful algal blooms are a global threat to marine ecosystems and human health. This study used translatome sequencing to investigate the molecular mechanisms of the Prorocentrum donghaiense algae. Through analyzing the translatome and proteome, the study found that up-regulation of energy and material production pathways in phosphor-rich conditions led to exponential growth of the algae in HABs. The researchers also demonstrated that mild translation delay using low concentrations of cycloheximide can control algal blooms without harming other aquatic organisms or humans.
JOURNAL OF PROTEOME RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Jiali Gui, Shuangshuang Chen, Guiying Luo, Zixiang Wu, Yongxiang Fan, Luming Yao, Hong Xu
Summary: This study highlights the high potential of Prorocentrum donghaiense, a dominant bloom-causing dinoflagellate, for lipid production. Compared to other oleaginous microalgae, P. donghaiense shows greater practical application potential due to its higher biomass and lipid contents. Nutrient deficiency and the algicidal bacterium Paracoccus sp. strain Y42 enhance the suitability of P. donghaiense lipid profile for biodiesel production, contributing to reductions in production costs.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Engineering, Marine
Qianqian Wang, Xinguo Shi, Yisong Guo, Pin Lv, Yuying Zhong, Hui Xie, Jianfeng Chen
Summary: This study optimized the medium composition and culture conditions of a bacteria strain that can lyse Prorocentrum donghaiense, leading to a significant improvement in the algicidal activity. The findings provide insights for controlling algal blooms in the marine environment.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Xiao-Kun Hu, Zhuo-Ru Lin, Qing-Chun Zhang, Fan-Zhou Kong, Jing-Yi Cen, Yu-Lan Zeng, Ren-Cheng Yu
Summary: A real-time quantitative PCR assay was developed to improve the accuracy and efficiency in detection of Karenia mikimotoi. The qPCR assay, along with another assay for Prorocentrum donghaiense, was used to study a bloom of dinoflagellates in the coastal waters of Fujian province. The qPCR assays offer reliable and accurate approaches for the detection of harmful algal bloom species.
JOURNAL OF APPLIED PHYCOLOGY
(2022)
Article
Environmental Sciences
Jinju Ma, Fuguo Liu, Yin Liu, Chunyun Zhang, Yuanyuan Wang, Guofu Chen
Summary: This study proposed a detection technology for harmful microalgae using the nuclease protection assay integrated with dot nucleic acid chromatography strip. With specific probes and optimized parameters, this method enables rapid, simple, and visual detection of harmful microalgae.
MARINE POLLUTION BULLETIN
(2022)
Review
Environmental Sciences
Dolores Camacho-Munoz, Radisti A. Praptiwi, Linda A. Lawton, Christine Edwards
Summary: Marine dinoflagellates produce a wide range of chemically diverse compounds with various biological activities, including toxins like red tide toxins that play a key role in cellular processes. The complexity and scarcity of these compounds have limited research, with large-scale cultivation being the most practical option for obtaining high-quality useful products. Investigating the biotechnological potential of these organisms and overcoming challenges is crucial for the future development of this field.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Leonardo Murilo Aoyagi, Douglas Henrique Baracho, Ana Teresa Lombardi
Summary: In this study, a manipulative strategy combining low-dose copper and blue/red lights was used to induce biomolecule accumulation in microalgae. The results showed a significant increase in carotenoids, carbohydrates, and proteins under the appropriate copper concentration and blue light conditions. Blue light had the most significant impact on the algal metabolism.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Environmental Sciences
Zhihao Zhang, Yunyun Zhuang, Hongju Chen, Songhui Lu, Yixuan Li, Ruping Ge, Chang Chen, Guangxing Liu
Summary: Blooms of the non-toxic dinoflagellate Prorocentrum donghaiense in the East China Sea significantly changed the structure and functions of the zooplankton community, leading to an increase in species richness and biodiversity after the bloom. During the bloom, the zooplankton community was dominated by carnivorousand egg-brooding- lineages represented by small jellyfish, chaetognaths, and copepods.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Jiazhu Zhang, Lingwei Kong, Yan Zhao, Qingming Lin, Shaojie Huang, Yafang Jin, Zengling Ma, Wanchun Guan
Summary: Bibliometric network analysis reveals that microplastics have detrimental effects on marine organisms. However, the combined effects of microplastics and climate change are not well understood. This study investigates the combined effects of microplastics and simulated ocean warming on a red tide species, Prorocentrum donghaiense. The results show that microplastics decrease cell growth, pigment contents, and electron transfer rate, but increase reactive oxygen species and antioxidant enzyme levels at low temperature. High temperatures have positive and negative effects depending on microplastic concentrations. These findings expand our knowledge on microalgae responses to increasing microplastic pollution in future warming scenarios.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Xiansheng Zhang, Guangming Zhen, Xiaoru Cui, Yulan Zeng, Weimin Gao, Kunlong Yu, Keqiang Li
Summary: Blooms of Prorocentrum donghaiense occur annually in the East China Sea coastal waters, causing damage to the ecosystem and hindering economic development. Dissolved organic nitrogen and phosphorus are found to be the key factors influencing the bloom and phytoplankton community structure.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Marine & Freshwater Biology
Songhui Lu, Linjian Ou, Xinfeng Dai, Lei Cui, Yuelei Dong, Pengbin Wang, Dongmei Li, Douding Lu
Summary: Prorocentrum donghaiense is a bloom-forming dinoflagellate species that occurs annually in the East China Sea, with distinct succession patterns correlated with environmental factors. The blooms have impacts on marine ecosystems and further research is needed on nutrient budgets and socio-economic impacts.
Article
Environmental Sciences
Yingjie Chen, Guiying Luo, Shuangshuang Chen, Danyang Zhang, Wanxin Xie, Zengge Wang, Wei Zheng, Hong Xu
Summary: Prodigiosin can effectively control Prorocentrum donghaiense blooms by impacting chloroplasts and mitochondria, leading to lipid peroxidation and membrane damage. While it can arrest the cell cycle of P. donghaiense, surviving cells are able to repair and continue cycling after prodigiosin is removed by photodegradation. Prodigiosin shows potential for bloom control, but should be applied at night in small doses to minimize environmental impact.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Food Science & Technology
Huihui Shen, Xiuxian Song, Yue Zhang, Peipei Zhang, Jing Li, Weijia Song, Zhiming Yu
Summary: This study investigated the BTX metabolites of a Chinese strain of Karenia brevis 165, revealing significant differences in metabolite types and concentrations at different growth stages, which can help assess ecological disaster risks.
Article
Marine & Freshwater Biology
Xiuxian Song, Yue Zhang, Zhiming Yu
Summary: The use of modified clay to mitigate harmful algal blooms is gaining popularity in China due to its cost-effectiveness and environmental benefits. Studies have shown that this technology does not harm nontarget aquatic organisms, negatively impact water quality, or benthic environment. Additionally, it can alter nutrient cycling and reduce algal toxins in water bodies.
Article
Marine & Freshwater Biology
Huiyin Song, Yang Chen, Kate Gibson, Shuya Liu, Zhiming Yu, Nansheng Chen
Summary: Accumulated evidence suggests that the haptophyte species Phaeocystis globosa, crucial for climate control and potentially causing harmful algal blooms, exhibits a rich genetic diversity. COX1 can effectively differentiate different P. globosa strains due to low intra-genome variations and high resolution. Analysis of 57 P. globosa strains and seven field samples revealed at least seven distinct genetic clades, demonstrating high genetic diversity in this species.
Article
Environmental Sciences
Xueyi Dong, Xihua Cao, Wenbin Jiang, Xiuxian Song, Zhiming Yu, Shitao Yu
Summary: Polyaluminum chloride modified clay (PAC-MC) is a safe and efficient red tide control agent that has been studied and applied worldwide. The distribution of different hydrolytic aluminum species in PAC affects its flocculation and microalgae removal efficiency. The ferron method was used in this study to analyze the distributions of different hydrolytic aluminum species during the process of microalgae removal by PAC-MC, providing guidance for the precise application of PAC-MC in the control of harmful algal blooms.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2021)
Article
Engineering, Marine
Peipei Zhang, Xiuxian Song, Yue Zhang, Huihui Shen, Xueyi Dong, Jing Li, Zhiming Yu
Summary: The study investigated the effects of polyaluminum chloride-modified clay (PAC-MC) on marine medaka and found that under effective doses for treating harmful algal blooms, PAC-MC did not have adverse effects on the survival, growth, oxidative stress, and aluminum content of the newly hatched medaka.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
Wenbin Jiang, Zhiming Yu, Xihua Cao, Kaiqin Jiang, Yongquan Yuan, Donald M. Anderson, Xiuxian Song
Summary: The study focused on improving the MC flocculation efficiency in high-organic water by compressing the ionic atmosphere of MC particles through increasing the salt concentration. This led to rapid flocculation of MC particles and formation of large flocs, followed by rapid settling via differential sedimentation. The research provides important baseline information for extending the application of MC to control HABs in water bodies with high organic loadings.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Hena Ji, Zhiming Yu, Liyan He, Jianan Zhu, Xihua Cao, Xiuxian Song
Summary: The research shows that modified clay can effectively reduce the biomass of harmful algal blooms through various mechanisms, including inducing programmed cell death. After application in residual blooms, modified clay alters the physiological state of the cells, leading to growth inhibition and increased reactive oxygen species production.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2021)
Article
Environmental Sciences
Lianbao Chi, Xiuxian Song, Yu Ding, Yongquan Yuan, Wentao Wang, Xihua Cao, Zaixing Wu, Zhiming Yu
Summary: The severe hypoxia off the Changjiang estuary has a dual-core structure with different biochemical processes in the two hypoxic zones. Phytoplankton sinking rate (PSR) and sediment oxygen demand (SOD) were measured and compared between the two regions, with higher values observed in the southern region. Sediment oxygen demand accounted for a significant portion of dissolved oxygen (DO) consumption in both the northern and southern regions.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Jianan Zhu, Zhiming Yu, Liyan He, Xihua Cao, Hena Ji, Xiuxian Song
Summary: Based on field experience, it was found that modified clay (MC) can effectively inhibit the growth of residual algal cells and control harmful algal blooms (HABs) by changing the physical and chemical properties of clay particles on the surface, leading to chemical and electrochemical effects and physical collisions with residual cells. This study provides insights into the mechanism by which MC mitigates HABs through a combination of physical and chemical effects on residual cells, ultimately achieving a significant reduction in algal growth.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Environmental Sciences
Wentao Wang, Zhiming Yu, Xiuxian Song, Lianbao Chi, Peng Zhou, Zaixing Wu, Yongquan Yuan
Summary: This study investigated the seasonal source and contributions of internal decomposition of organic matter (OM) in the Kuroshio Subsurface Water (KSSW) for hypoxia formation in the East China Sea (ECS). The results showed that in June, N-2 fixation signals related to decomposed OM were apparent in the southern ECS, while terrestrial input signals were revealed in the northern ECS and most of the ECS in October. The terrestrial input contributed almost equally to the development of ECS hypoxia as compared to marine sources, indicating the importance of understanding eutrophication and oceanic circulation in hypoxia formation.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Liyan He, Zhiming Yu, Jianan Zhu, Xihua Cao, Xiuxian Song
Summary: This paper employed atomic force microscopy to study the harmful algal bloom species Prorocentrum donghaiense for the first time. The study revealed the typical structures on the cell surfaces and quantified the nanostructures and nanomechanical parameters. Under nitrogen limitation, the cell surface roughness and adhesion decreased, and the elastic modulus increased. These changes reflect the potential alterations in the physiological functions of P. donghaiense cells under external environmental changes.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Peipei Zhang, Xiuxian Song, Yue Zhang, Jianan Zhu, Huihui Shen, Zhiming Yu
Summary: The blooms of toxic dinoflagellate Karenia mikimotoi can pose a threat to the survival of marine life, but modified clay (MC) has shown promise as a method for controlling harmful algal blooms. In this study, it was found that MC treatment can rapidly reduce the toxicity of K. mikimotoi by reducing the density of intact algae cells and hemolytic toxicity, thereby mitigating the damage to fish gills and reducing mortality.
Article
Microbiology
Yu Ding, Xiuxian Song, Zhiming Yu
Summary: In this study, the response mechanism of Vibrio alginolyticus in bottom flocs treated with modified clay (MC) was investigated at the transcriptome level. It was found that MC altered the morphology of the bacteria, damaged the membrane function, activated the antioxidant system, and caused changes in material and energy metabolism. Additionally, MC suppressed the expression of virulence factors in V. alginolyticus. These findings provide theoretical support for the development of a new model of healthy aquaculture.
MICROBIOLOGICAL RESEARCH
(2022)
Article
Environmental Sciences
Xiangzheng Ren, Zhiming Yu, Xiuxian Song, Jianan Zhu, Wentao Wang, Xihua Cao
Summary: This study comprehensively compared the physiochemical indices and transcriptomic response of residual P. globosa cells after treatment with two concentrations of PAC-MC, revealing the concentration-dependent mechanism of PAC-MC affecting the formation of P. globosa colonies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Zhongshi Wang, Zhiming Yu, Liyan He, Jianan Zhu, Lidong Liu, Xiuxian Song
Summary: This study successfully conducted electrophysiological research on dinoflagellates by removing the surface amphiesma, and recorded and confirmed the characteristics of voltage-gated currents. This provides a new technical basis for studying stress tolerance, red tide succession, and the regulation of physiological function in dinoflagellates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Katja J. Geiger, Julio Arrontes, Antonella Rivera, Consolacion Fernandez, Jorge Alvarez, Jose Luis Acuna
Summary: A two-year experiment was conducted to investigate the impact of Pollicipes pollicipes harvest on intertidal community structure and ecological diversity. The study found that intensive exploitation resulted in a decrease in P. pollicipes and Mytilus spp. coverage, while Chthamalus spp. and Corallina spp. increased. The recovery of P. pollicipes aggregations was slow and variable, but their coverage increased under non-extracted conditions.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2024)
Article
Ecology
Daniel Castro Martignago, Leandro Godoy, Amanda Pereira Amaral, Guendalina Turcato Oliveira
Summary: This study evaluates the effects of bleaching on the oocytes of the Mussismilia harttii coral and investigates the strategies employed by these cells to maintain antioxidant balance and cellular homeostasis. The research finds that bleached coral oocytes experience lipid damage, but are still able to maintain their quality and potentially elongate their lifespan and fertilization capability. This response may be linked to an intensification of heterotrophy in bleached corals.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2024)
