Hae Jin Jeong

Summary

Affiliation: Seoul National University
Country: Korea

Publications

  1. Lee K, Jeong H, Lee K, Franks P, Seong K, Lee S, et al. Effects of warming and eutrophication on coastal phytoplankton production. Harmful Algae. 2019;81:106-118 pubmed publisher
    ..5, warming lowered phytoplankton production, Thus, it is suggested that NCCA could be used as an index for predicting future phytoplankton production changes in coastal waters. ..
  2. Jeong H, Lee K, Yoo Y, Kang N, Song J, Kim T, et al. Effects of light intensity, temperature, and salinity on the growth and ingestion rates of the red-tide mixotrophic dinoflagellate Paragymnodinium shiwhaense. Harmful Algae. 2018;80:46-54 pubmed publisher
    ..These findings provide a beginning basis for understanding the ecology of this potentially harmful algal species in marine coastal ecosystems. ..
  3. Jang S, Jeong H, Yoo Y. Gambierdiscus jejuensis sp. nov., an epiphytic dinoflagellate from the waters of Jeju Island, Korea, effect of temperature on the growth, and its global distribution. Harmful Algae. 2018;80:149-157 pubmed publisher
    ..nov. Furthermore, it is suggested that the unidentified strains belonging to the Gambierdiscus sp. type 2 be transferred to the new species, G. jejuensis. ..
  4. Kang H, Jin Jeong H, So Jin K, You J, Hee Ok J. Differential feeding by common heterotrophic protists on 12 different Alexandrium species. Harmful Algae. 2018;78:106-117 pubmed publisher
    ..These results may provide an insight into the roles of protistan predators in bloom dynamics of Alexandrium species. ..
  5. request reprint
    Jeong H, Ha J, Yoo Y, Park J, Kim J, Kang N, et al. Feeding by the Pfiesteria-like heterotrophic dinoflagellate Luciella masanensis. J Eukaryot Microbiol. 2007;54:231-41 pubmed
    ..piscicida. Therefore, these three dinoflagellates may occupy different ecological niches in marine planktonic communities, even though they have a similar size and shape and the same feeding mechanisms. ..
  6. Ok J, Jeong H, Lim A, Lee S, Kim S. Feeding by the heterotrophic nanoflagellate Katablepharis remigera on algal prey and its nationwide distribution in Korea. Harmful Algae. 2018;74:30-45 pubmed publisher
    ..In most regions where red tides caused by H. akashiwo or Chattonella spp. occurred in 2000-2017, K. remigera was detected. Thus, the abundance of K. remigera may increase during red tides caused by H. akashiwo and Chattonella spp. ..
  7. Yoo Y, Seong K, Kim H, Jeong H, Yoon E, Park J, et al. Feeding and grazing impact by the bloom-forming euglenophyte Eutreptiella eupharyngea on marine eubacteria and cyanobacteria. Harmful Algae. 2018;73:98-109 pubmed publisher
    ..8 cells predator-1 h-1 and 1.228 d-1, respectively. Therefore, euglenophytes could potentially have a considerable grazing impact on marine bacterial populations. ..
  8. Jeong H, Seong K, Yoo Y, Kim T, Kang N, Kim S, et al. Feeding and grazing impact by small marine heterotrophic dinoflagellates on heterotrophic bacteria. J Eukaryot Microbiol. 2008;55:271-88 pubmed publisher
    ..Bacteria alone supported the growth of O. marina. The results of the present study suggest that some HTDs may sometimes have a considerable grazing impact on populations of marine bacteria, and that bacteria may be important prey. ..
  9. Krock B, Tillmann U, Potvin E, Jeong H, Drebing W, Kilcoyne J, et al. Structure Elucidation and in Vitro Toxicity of New Azaspiracids Isolated from the Marine Dinoflagellate Azadinium poporum. Mar Drugs. 2015;13:6687-702 pubmed publisher
    ..Using the Jurkat T lymphocyte cell toxicity assay, (1) and (2) were found to be 6- and 3-fold less toxic than AZA-1, respectively. ..

More Information

Publications25

  1. Jeong H, Yoo Y, Kang N, Lim A, Seong K, Lee S, et al. Heterotrophic feeding as a newly identified survival strategy of the dinoflagellate Symbiodinium. Proc Natl Acad Sci U S A. 2012;109:12604-9 pubmed publisher
    ..and remove substantial portions of Synechococcus populations from coral reef waters. Our discovery of Symbiodinium's feeding alters our conventional views of the survival strategies of photosynthetic Symbiodinium and corals. ..
  2. Lim A, Jeong H, Ok J, Kim S. Feeding by the harmful phototrophic dinoflagellate Takayama tasmanica (Family Kareniaceae). Harmful Algae. 2018;74:19-29 pubmed publisher
    ..helix on the same prey species. Therefore, the mixotrophic ability of T. tasmanica is weaker than that of T. helix, and also T. tasmanica may have an ecological niche different from that of T. helix in marine ecosystems. ..
  3. Jeong H, Ok J, Lim A, Kwon J, Kim S, Lee S. Mixotrophy in the phototrophic dinoflagellate Takayama helix (family Kareniaceae): Predator of diverse toxic and harmful dinoflagellates. Harmful Algae. 2016;60:92-106 pubmed publisher
    ..helix is a mixotrophic dinoflagellate that is able to feed on a diverse range of toxic species and, thus, its mixotrophic ability should be considered when studying red tide dynamics, food webs, and dinoflagellate evolution. ..
  4. Jang S, Jeong H, Chon J, Lee S. De novo assembly and characterization of the transcriptome of the newly described dinoflagellate Ansanella granifera: Spotlight on flagellum-associated genes. Mar Genomics. 2017;33:47-55 pubmed publisher
  5. Lee K, Jeong H, Kwon J, Kang H, Kim J, Jang S, et al. Mixotrophic ability of the phototrophic dinoflagellates Alexandrium andersonii, A. affine, and A. fraterculus. Harmful Algae. 2016;59:67-81 pubmed publisher
    ..6 cells predator-1d-1). This evidence suggests that the mixotrophic ability of A. andersonii should be taken into consideration in predicting the outbreak, persistence, and decline of its harmful algal blooms. ..
  6. Lee M, Jeong H, Jang S, Lee S, Kang N, Lee K, et al. Most Low-Abundance "Background" Symbiodinium spp. Are Transitory and Have Minimal Functional Significance for Symbiotic Corals. Microb Ecol. 2016;71:771-83 pubmed publisher
    ..The successful integration between host and symbiont into a stable functional unit should therefore be considered when defining host-symbiont specificity. ..
  7. Kim J, Jeong H, Lim A, Rho J, Lee S. Killing potential protist predators as a survival strategy of the newly described dinoflagellate Alexandrium pohangense. Harmful Algae. 2016;55:41-55 pubmed publisher
    ..pohangense cells ml-1 and equivalent culture filtrates. The relatively slow growing A. pohangense may form blooms by reducing mortality due to predation through killing potential protist predators. ..
  8. request reprint
    Jeong H, Du Yoo Y, Kim J, Kim T, Kim J, Kang N, et al. Mixotrophy in the phototrophic harmful alga Cochlodinium polykrikoides (Dinophycean): prey species, the effects of prey concentration, and grazing impact. J Eukaryot Microbiol. 2004;51:563-9 pubmed
    ..e. 0.1-53% of cryptophyte populations were removed by a C. polykrikoides population in 1 h). The results of the present study suggest that C. polykrikoides sometimes has a considerable grazing impact on populations of cryptophytes...
  9. Jeong H, Lim A, Jang S, Yih W, Kang N, Lee S, et al. First report of the epiphytic dinoflagellate Gambierdiscus caribaeus in the temperate waters off Jeju Island, Korea: morphology and molecular characterization. J Eukaryot Microbiol. 2012;59:637-50 pubmed publisher
    ..In phylogenetic trees based on SSU and LSU rDNA sequences, our Korean strain was basal to the clade consisting of the NOAA strains of G. caribaeus, which in turn was sister clade to all reported G. carpenteri strains...
  10. Kwon J, Jeong H, Kim S, Jang S, Lee K, Seong K. Newly discovered role of the heterotrophic nanoflagellate Katablepharis japonica, a predator of toxic or harmful dinoflagellates and raphidophytes. Harmful Algae. 2017;68:224-239 pubmed publisher
    ..The results of the present study clearly show that K. japonica is a predator of diverse phytoplankton, including toxic or harmful algae, and may also affect the dynamics of red tides caused by these prey species. ..
  11. Ok J, Jeong H, Lim A, Lee K. Interactions between the mixotrophic dinoflagellate Takayama helix and common heterotrophic protists. Harmful Algae. 2017;68:178-191 pubmed publisher
    ..Therefore, reciprocal predation, lysis, no feeding, and the low ingestion rates of the common protists preying on T. helix may result in a low mortality rate due to predation, thereby compensating for this species' low growth rate. ..
  12. Yoo Y, Seong K, Jeong H, Yih W, Rho J, Nam S, et al. Mixotrophy in the marine red-tide cryptophyte Teleaulax amphioxeia and ingestion and grazing impact of cryptophytes on natural populations of bacteria in Korean coastal waters. Harmful Algae. 2017;68:105-117 pubmed publisher
    ..Cryptophytes, therefore, likely play important roles in marine food webs and may exert a considerable potential grazing impact on the populations of marine bacteria. ..
  13. Lee S, Jeong H, Seong K, Lim A, Kim J, Lee K, et al. Improved real-time PCR method for quantification of the abundance of all known ribotypes of the ichthyotoxic dinoflagellate Cochlodinium polykrikoides by comparing 4 different preparation methods. Harmful Algae. 2017;63:23-31 pubmed publisher
    ..Thus, our results suggest that the CCD method is a more effective tool to quantify the abundance of C. polykrikoides than the conventional method, CDD, and the FDD and FCD methods. ..
  14. Jang S, Jeong H, Kwon J, Lee K. Mixotrophy in the newly described dinoflagellate Yihiella yeosuensis: A small, fast dinoflagellate predator that grows mixotrophically, but not autotrophically. Harmful Algae. 2017;62:94-103 pubmed publisher
    ..This evidence suggests that Y. yeosuensis may be an effective mixotrophic dinoflagellate predator on Pyramimonas and Teleaulax, and occurs abundantly during or after blooms of these two prey species. ..
  15. Jeong H, Kim J, Lee K, Seong K, Yoo Y, Kang N, et al. Differential interactions between the nematocyst-bearing mixotrophic dinoflagellate Paragymnodinium shiwhaense and common heterotrophic protists and copepods: Killer or prey. Harmful Algae. 2017;62:37-51 pubmed publisher
    ..Thus, P. shiwhaense might play diverse ecological roles in marine planktonic communities by having an advantage over competing phytoplankton in anti-predation against potential protistan grazers. ..
  16. Kim J, Jeong H, Lim A, Kwon J, Lee K, Park K, et al. Removal of two pathogenic scuticociliates Miamiensis avidus and Miamiensis sp. using cells or culture filtrates of the dinoflagellate Alexandrium andersonii. Harmful Algae. 2017;63:133-145 pubmed publisher
    ..The results of this study provided the basis for developing the method to control scuticociliate populations and understanding interactions between scuticociliates and phototrophic dinoflagellates in marine ecosystems. ..