All Stories

  1. Intracellular ultrastructural characterization of Azadinium and Amphidoma (Amphidomataceae, Dinophyceae), including toxigenic and non-toxigenic strains

    Article • Harmful Algae, August 2026, Elsevier

    Mitsunori Iwataki

  2. Recent plastid replacement in Karlodinium ballantinum (Kareniaceae, Dinoflagellata) challenges the paradigms of endosymbiotic gene transfer

    Article • Molecular Biology and Evolution, July 2026, Oxford University Press (OUP)

    Mitsunori Iwataki

  3. Pentapharsodinium ocelliferum sp. nov. (Ensiculiferaceae, Dinophyceae), a novel armored dinoflagellate with an eyespot from the Philippines

    Article • European Journal of Protistology, May 2026, Elsevier

    Mitsunori Iwataki

  4. Molecular detections of 14 amphidomatacean species (Dinophyceae) and their temperature-associated distribution in subarctic waters off eastern Hokkaido, Japan

    Article • Journal of Plankton Research, April 2026, Oxford University Press (OUP)

    Mitsunori Iwataki

  5. Unlocking Species and Subspecies Diversity of Harmful Microalgae Using HiFi Long-Read Metabarcoding: Insights from Amphidomataceae (Dinophyceae) in the China Sea

    Article • Harmful Algae, March 2026, Elsevier

    Mitsunori Iwataki

  6. Azadinium fusiforme, a new species of Amphidomataceae from Korean and Japanese coastal waters that lacks azaspiracid production

    Article • European Journal of Protistology, January 2026, Elsevier

    Mitsunori Iwataki

  7. Morphomolecular studies of Ceratocorys species (Dinophyceae, Gonyaulacales, Protoceratiaceae) reveal that Ceratocorys armata , C. gourr...

    Article • Journal of Phycology, December 2025, Wiley

    Mitsunori Iwataki

  8. Description of the second peridinin-containing kareniacean species, Gertia obesa sp. nov . (Dinophyceae) and the identity of the family Kareniaceae

    Article • Phycologia, November 2025, Taylor & Francis

    Mitsunori Iwataki

  9. Diversity of amphidomatacean dinoflagellates in Japan, with a description of Azadinium inconspicuum sp. nov. and azaspiracid components in Azadinium poporum ribotypes

    Article • Harmful Algae, September 2025, Elsevier

    Mitsunori Iwataki

  10. Hulburtia sanyaensis gen. et sp. nov., a sand‐dwelling dinoflagellate from the South China Sea, and ultrastructure of Pseudocochlodinium profundisulcus and Grammatodinium tongyeonginum

    Article • Journal of Phycology, August 2025, Wiley

    Mitsunori Iwataki

  11. Phylogenetic analysis of the toxigenic genus Amphidinium (Amphidiniales, Dinophyceae) revealed an unexpectedly high diversity in the Asia-Pacific region

    Article • Harmful Algae, July 2025, Elsevier

    Mitsunori Iwataki

  12. High molecular diversity of potentially harmful heterotrophic dinophytes in tropical shrimp aquaculture ponds reveals a new dinophyte Malayana penaeicida gen. et sp. nov. (Peridiniales, Dinophyceae)

    Article • Harmful Algae, June 2025, Elsevier

    Mitsunori Iwataki

  13. Differential accumulation of dissolved azaspiracids and diarrhetic shellfish toxins in Manila clam (Ruditapes philippinarum): effects of temperature and tissue-specific uptake

    Article • Estuarine Coastal and Shelf Science, June 2025, Elsevier

    Mitsunori Iwataki

  14. Kapelodiniopsis flava n. g., n. sp. (Dinophyceae), a new katodinioid with haptophyte‐derived plastids of multiple origins: Implications for the plastid integration process

    Article • Journal of Eukaryotic Microbiology, April 2025, Wiley

    Mitsunori Iwataki

  15. First Record of Coolia malayensis (Dinophyceae) from Cancabato Bay, Tacloban City, the Philippines: Morphology, rDNA, Hemolytic Activity, and Growth Response to Salinity

    Article • The Philippine journal of science, April 2025, Science and Technology Information Institute

    Mitsunori Iwataki

  16. Scrippsiella luzonensis sp. nov. (Thoracosphaerales, Dinophyceae), a new small marine dinoflagellate from the Philippines

    Article • Phycological Research, February 2025, Wiley

    Mitsunori Iwataki

  17. Fish Kills Related to Harmful Algal Bloom Events in Southeast Asia

    Article • Sustainability, November 2024, MDPI AG

    Mitsunori Iwataki

  18. Effects of temperature and light intensity on growth in <i>Prorocentrum</i> cf. <i>balticum</i> (Dinophyceae) isolated from the Oyashio-Kuroshio Mixed Water region, North Pacific

    Article • Plankton and Benthos Research, November 2024, The Plankton Society of Japan/The Japanese Association of Benthology

    Mitsunori Iwataki

  19. First report of toxigenic Amphidoma languida (Amphidomataceae, Dinophyceae) from the Pacific, with reference to intracellular ultrastructure and azaspiracid compounds

    Article • Phycological Research, September 2024, Wiley

    Mitsunori Iwataki

  20. Phylogeny and ultrastructure of a non-toxigenic dinoflagellate Amphidoma fulgens sp. nov. (Amphidomataceae, Dinophyceae), with a wide distribution across Asian Pacific

    Article • Harmful Algae, July 2024, Elsevier

    Mitsunori Iwataki

  21. Fish Kills Related to Harmful Algal Bloom Events in Southeast Asia

    Article • June 2024, MDPI AG

    Mitsunori Iwataki

  22. Morphology, Phylogeny and Discovery of the Antioxidant Potential of a Marine Dinoflagellate Karlodinium ballantinum (Kareniaceae, Dinophyceae) Isolated from Subic Bay, Zambales, Central Luzon, Philippines

    Article • The Philippine Journal of Fisheries, June 2024, National Fisheries Research and Development Institute

    Mitsunori Iwataki

  23. Diversity and biogeography of dinoflagellates in the Kuroshio region revealed by 18S rRNA metabarcoding

    Article • Frontiers in Marine Science, May 2024, Frontiers

    Mitsunori Iwataki

  24. Novel aerobic anoxygenic phototrophic bacterium Jannaschia pagri sp. nov., isolated from seawater around a fish farm

    Article • Antonie van Leeuwenhoek, April 2024, Springer Science + Business Media

    Mitsunori Iwataki

  25. Expansion of Toxic Algal Blooms in Coastal and Marine Areas in the Philippines and Malaysia: Is It Climate Change Related?

    Article • Sustainability, April 2024, MDPI AG

    Mitsunori Iwataki

  26. New azaspiracid analogues detected as bi-charged ions in Azadinium poporum (Amphidomataceae, Dinophyceae) isolated from Japanese coastal waters

    Article • Journal of Chromatography B, April 2024, Elsevier

    Mitsunori Iwataki

  27. Lethal effects of the harmful dinoflagellate Karenia selliformis (Gymnodiniales, Dinophyceae) on two juvenile kelp sporophytes Saccharina japonica and S. sculpera (Laminariales, Phaeophyceae)

    Article • Regional Studies in Marine Science, July 2023, Elsevier

    Mitsunori Iwataki

  28. A new small thecate dinoflagellate Azadinium anteroporum sp. nov. (Amphidomataceae, Dinophyceae) isolated from the Asian Pacific

    Article • Phycologia, May 2023, Taylor & Francis

    Mitsunori Iwataki

  29. Comparative effects of temperature and salinity on growth of four harmful Chattonella spp. (Raphidophyceae) from tropical Asian waters

    Article • Frontiers in Marine Science, May 2023, Frontiers

    Mitsunori Iwataki

  30. Azaspiracid accumulation in Japanese coastal bivalves and ascidians fed with Azadinium poporum producing azaspiracid-2 as the dominant toxin component

    Article • Toxicon, April 2023, Elsevier

    Mitsunori Iwataki

  31. Harmful Algae in Indonesia: Small in Size, Big in Effect

    Article • Frontiers for Young Minds, February 2023, Frontiers

    Mitsunori Iwataki

  32. A massive bloom of Karenia species (Dinophyceae) off the Kamchatka coast, Russia, in the fall of 2020

    Article • Harmful Algae, December 2022, Elsevier

    Mitsunori Iwataki

  33. Description of two new species Chattonella tenuiplastida sp. nov. and Chattonella malayana sp. nov. (Raphidophyceae) from South China Sea, with a report of wild fish mortality

    Article • Harmful Algae, October 2022, Elsevier

    Mitsunori Iwataki

  34. Comparative Plastid Genomics of Green-Colored Dinoflagellates Unveils Parallel Genome Compaction and RNA Editing

    Article • Frontiers in Plant Science, July 2022, Frontiers

    Mitsunori Iwataki

  35. Morphological variation and phylogeny of Karenia selliformis (Gymnodiniales, Dinophyceae) in an intensive cold-water algal bloom in eastern Hokkaido, Japan

    Article • Harmful Algae, May 2022, Elsevier

    Mitsunori Iwataki

  36. Dinoflagellate Cyst Distribution in Relation to the Sediment Composition and Grain Size in the Coastal Area of Pangkajene, South Sulawesi, Indonesia

    Article • ILMU KELAUTAN Indonesian Journal of Marine Sciences, April 2022, Center of Biomass and Renewable Energy (CBIORE)

    Mitsunori Iwataki

  37. Morphological variation and phylogeny of Karenia selliformis (Gymnodiniales, Dinophyceae) in an intensive cold-water algal bloom in eastern Hokkaido, Japan in September–November 2021

    Article • December 2021, Cold Spring Harbor Laboratory Press

    Mitsunori Iwataki

  38. Complex profiles of azaspiracid analogues in two culture strains of Azadinium poporum (Amphidomataceae, Dinophyceae) isolated from Japanese coastal waters determined by LC-MS/MS

    Article • Toxicon, August 2021, Elsevier

    Mitsunori Iwataki

  39. Morpho-molecular description of a new HAB species, Pseudocochlodinium profundisulcus gen. et sp. nov., and its LSU rRNA gene based genetic diversity and geographical distribution

    Article • Harmful Algae, August 2021, Elsevier

    Mitsunori Iwataki

  40. The harmful raphidophyte Chattonella (Raphidophyceae) in Western Pacific: Its red tides and associated fisheries damage over the past 50 years (1969–2019)

    Article • Harmful Algae, July 2021, Elsevier

    Mitsunori Iwataki

  41. Thecal tabulation, body scale morphology and phylogeny of Heterocapsa philippinensis sp. nov. (Peridiniales, Dinophyceae) from the Philippines

    Article • European Journal of Protistology, July 2021, Elsevier

    Mitsunori Iwataki

  42. Perceived global increase in algal blooms is attributable to intensified monitoring and emerging bloom impacts

    Article • Communications Earth & Environment, June 2021, Springer Science + Business Media

    Mitsunori Iwataki

  43. Toxigenic strains of Azadinium poporum ( Amphidomataceae, Dinophyceae ) from Japan and Vietnam , with first reports of A. pop...

    Article • Phycological Research, February 2021, Wiley

    Mitsunori Iwataki

  44. Morphological and phylogenetic data do not support the split of Alexandrium into four genera

    Article • Harmful Algae, September 2020, Elsevier

    Mitsunori Iwataki

  45. Morphology, ultrastructure, and molecular phylogeny of the unarmoured dinoflagellate Kirithra sigma sp. nov. (Ceratoperidiniaceae, Dinophyceae)

    Article • Phycologia, July 2020, Taylor & Francis

    Mitsunori Iwataki

  46. The Harmful Unarmored Dinoflagellate Karlodinium in Japan and Philippines, with Reference to Ultrastructure and Micropredation of Karlodinium azanzae sp. nov. (Kareniaceae, Dinophyceae) ...

    Article • Journal of Phycology, June 2020, Wiley

    Mitsunori Iwataki, Garry Benico

  47. Over 30 years of HABs in the Philippines and Malaysia: What have we learned?

    Article • Harmful Algae, March 2020, Elsevier

    Mitsunori Iwataki

  48. Ultrastructure and systematics of two new species of dinoflagellate, Paragymnodinium asymmetricum sp. nov. and Paragymnodinium inerme sp. nov. (Gymnodiniales, Dinophyceae)

    Article • Journal of Phycology, March 2020, Wiley

    Mitsunori Iwataki

  49. Harmful algal blooms and associated fisheries damage in East Asia: Current status and trends in China, Japan, Korea and Russia

    Article • Harmful Algae, March 2020, Elsevier

    Mitsunori Iwataki

  50. Dinoflagellates with relic endosymbiont nuclei as models for elucidating organellogenesis

    Article • Proceedings of the National Academy of Sciences, February 2020, Proceedings of the National Academy of Sciences

    Mitsunori Iwataki

  51. Putative genome features of relic green alga-derived nuclei in dinoflagellates and future perspectives as model organisms

    Article • Communicative & Integrative Biology, January 2020, Taylor & Francis

    Mitsunori Iwataki

  52. Dactylodinium arachnoides sp. nov. (Borghiellaceae, Dinophyceae): a new marine dinoflagellate with a loop-shaped apical structure complex and tubular membranous extrusomes

    Article • Phycologia, October 2019, Taylor & Francis

    Mitsunori Iwataki, Garry Benico

  53. Gertia stigmatica gen. et sp. nov. (Kareniaceae, Dinophyceae), a New Marine Unarmored Dinoflagellate Possessing the Peridinin-type Chloroplast with an Eyespot

    Article • Protist, August 2019, Elsevier

    Mitsunori Iwataki

  54. Dinoflagellates with relic endosymbiont nuclei as novel models for elucidating organellogenesis

    Article • July 2019, Cold Spring Harbor Laboratory Press

    Mitsunori Iwataki

  55. Morphological variation, ultrastructure, pigment composition and phylogeny of the star-shaped dinoflagellate Asterodinium gracile (Kareniaceae, Dinophyceae)

    Article • Phycologia, June 2019, Taylor & Francis

    Mitsunori Iwataki, Garry Benico

  56. Discovery of a New Clade Nested Within the Genus Alexandrium (Dinophyceae): Morpho-molecular Characterization of Centrodinium punctatum (Cleve) F.J.R. Taylor

    Article • Protist, April 2019, Elsevier

    Mitsunori Iwataki

  57. Resting Cyst Distribution and Molecular Identification of the Harmful Dinoflagellate Margalefidinium polykrikoides (Gymnodiniales, Dinophyceae) in Lampung Bay, Sumatra, Indonesia

    Article • Frontiers in Microbiology, February 2019, Frontiers

    Mitsunori Iwataki

  58. Identification of Causative Ciguatoxins in Red Snappers Lutjanus bohar Implicated in Ciguatera Fish Poisonings in Vietnam

    Article • Toxins, October 2018, MDPI AG

    Mitsunori Iwataki

  59. Overview of Harmful Algal Blooms in Asia

    Article • January 2018, Springer Science + Business Media

    Mitsunori Iwataki

  60. Temporal dynamics of dissolved organic carbon (DOC) produced in a microcosm with red tide forming algae Chattonella marina and its associated bacteria

    Article • Journal of Engineering Physics and Thermophysics, November 2017, Springer Science + Business Media

    Mitsunori Iwataki

  61. Dactylodinium pterobelotum gen. et sp. nov., a new marine woloszynskioid dinoflagellate positioned between the two families Borghiellaceae and Suessiaceae

    Article • Journal of Phycology, September 2017, Wiley

    Mitsunori Iwataki

  62. Utility of mitochondrial-encoded cytochrome c oxidase I gene for phylogenetic analysis and species identification of the planktonic diatom genus Skeletonema

    Article • Phycological Research, April 2017, Wiley

    Mitsunori Iwataki

  63. Comparison of planktonic microbial abundance and dissolved oxygen consumption between the aquaculture ponds of mudskippers and shrimps in the Mekong Delta, southern Vietnam

    Article • Fisheries Science, July 2016, Springer Science + Business Media

    Mitsunori Iwataki

  64. Two New Freshwater Woloszynskioids Asulcocephalium miricentonis gen. et sp. nov. and Leiocephalium pseudosanguineum gen. et sp. nov. (Suessiaceae, Dinophyceae) Lacking an Apical Furrow Apparatus

    Article • Protist, December 2015, Elsevier

    Mitsunori Iwataki

  65. Taxonomy and Distribution of the Unarmored Dinoflagellates Cochlodinium polykrikoides and C. fulvescens

    Article • January 2015, Springer Science + Business Media

    Mitsunori Iwataki

  66. A bloom of Karlodinium australe (Gymnodiniales, Dinophyceae) associated with mass mortality of cage-cultured fishes in West Johor Strait, Malaysia

    Article • Harmful Algae, December 2014, Elsevier

    Dr chui Pin Leaw, Dr Hong Chang Lim, Mitsunori Iwataki

  67. Corrigendum

    Article • Phycologia, June 2014, Taylor & Francis

    Mitsunori Iwataki

  68. Morphology of two marine woloszynskioid dinoflagellates, Biecheleria brevisulcata sp. nov. and Biecheleriopsis adriatica (Suessiaceae, Dinophyceae), from Japanese coasts

    Article • Phycologia, January 2014, Taylor & Francis

    Mitsunori Iwataki

  69. New unicellular red alga, Bulboplastis apyrenoidosa gen. et sp. nov. (Rhodellophyceae, Rhodophyta) from the mangroves of Japan: Phylogenetic and ultrastructural observations

    Article • Phycological Research, April 2012, Wiley

    Mitsunori Iwataki

  70. Chrysophyceae and Synurophyceae

    Article • March 2012, Wiley

    Mitsunori Iwataki

  71. Heterocapsa circularisquama coming up north^|^mdash;Mass mortality of Pacific oysters due to its blooming at Lake Kamo in Sado Island, Japan

    Article • NIPPON SUISAN GAKKAISHI, January 2012, Japanese Society of Fisheries Science

    Mitsunori Iwataki

  72. Proposal of identification criteria for resting spores of Chaetoceros species (Bacillariophyceae) from a temperate coastal sea

    Article • Phycologia, July 2011, Taylor & Francis

    Mitsunori Iwataki

  73. Seed populations of a harmful unarmored dinoflagellate Cochlodinium polykrikoides Margalef in the East China Sea

    Article • Harmful Algae, September 2010, Elsevier

    Mitsunori Iwataki

  74. Reconstruction of historical nutrient levels in Korean and Japanese coastal areas based on dinoflagellate cyst assemblages

    Article • Marine Pollution Bulletin, August 2010, Elsevier

    Mitsunori Iwataki

  75. Chlorella variabilis and Micractinium reisseri sp. nov. (Chlorellaceae, Trebouxiophyceae): Redescription of the endosymbiotic green algae of Paramecium bursaria (Peniculia, Oligohymenophorea) in the 120th year

    Article • Phycological Research, June 2010, Wiley

    Mitsunori Iwataki

  76. Ultrastructure of the Harmful Unarmored Dinoflagellate Cochlodinium polykrikoides (Dinophyceae) with Reference to the Apical Groove and Flagellar Apparatus

    Article • Journal of Eukaryotic Microbiology, June 2010, Wiley

    Mitsunori Iwataki

  77. Cellular and body scale morphology ofHeterocapsa huensissp. nov. (Peridiniales, Dinophyceae) found in Hue, Vietnam

    Article • Phycological Research, June 2009, Wiley

    Mitsunori Iwataki

  78. Re-examination of cyst–motile relationships of Polykrikos kofoidii Chatton and Polykrikos schwartzii Bütschli (Gymnodiniales, Dinophyceae)

    Article • Review of Palaeobotany and Palynology, April 2009, Elsevier

    Mitsunori Iwataki

  79. Upwelling of oxygen-depleted water (Sumishio) in Omura Bay, Japan

    Article • Journal of Engineering Physics and Thermophysics, February 2009, Springer Science + Business Media

    Mitsunori Iwataki

  80. The First Appearance of Toxic Dinoflagellate Alexandrium tamarense (Gonyaulacales, Dinophyceae) Responsible for the PSP Contaminations in Gamak Bay, Korea

    Article • ALGAE, December 2008, The Korean Society of Phycology

    Mitsunori Iwataki

  81. Optical properties of the red tide in Isahaya Bay, southwestern Japan: Influence of chlorophyll a concentration

    Article • Journal of Engineering Physics and Thermophysics, August 2008, Springer Science + Business Media

    Mitsunori Iwataki

  82. Research Note: Molecular phylogenetic affiliations of Dissodinium pseudolunula, Pheopolykrikos hartmannii, Polykrikos cf. schwartzii and Polykrikos kofoidii to Gymnodinium sensu stricto species (Dinophyceae)

    Article • Phycological Research, June 2008, Wiley

    Mitsunori Iwataki

  83. Morphology and taxonomy of chain-forming species of the genus Cochlodinium (Dinophyceae)

    Article • Harmful Algae, April 2008, Elsevier

    Mitsunori Iwataki

  84. Phylogenetic relationships in the harmful dinoflagellate Cochlodinium polykrikoides (Gymnodiniales, Dinophyceae) inferred from LSU rDNA sequences

    Article • Harmful Algae, April 2008, Elsevier

    Mitsunori Iwataki

  85. Taxonomy and identification of the armored dinoflagellate genus Heterocapsa (Peridiniales, Dinophyceae)

    Article • Plankton and Benthos Research, January 2008, The Plankton Society of Japan/The Japanese Association of Benthology

    Mitsunori Iwataki

  86. Cochlodinium fulvescens sp. nov. (Gymnodiniales, Dinophyceae), a new chain-forming unarmored dinoflagellate from Asian coasts

    Article • Phycological Research, September 2007, Wiley

    Mitsunori Iwataki

  87. Yessotoxin analogues in several strains of Protoceratium reticulatum in Japan determined by liquid chromatography–hybrid triple quadrupole/linear ion trap mass spectrometry

    Article • Journal of Chromatography A, February 2007, Elsevier

    Mitsunori Iwataki

  88. Further examination of the cyst-theca relationship of Protoperidinium thulesense (Peridiniales, Dinophyceae) and the phylogenetic significance of round brown cysts

    Article • Phycologia, November 2006, Taylor & Francis

    Mitsunori Iwataki

  89. A new diplopsalid species Oblea acanthocysta sp. nov. (Peridiniales, Dinophyceae)

    Article • Plankton and Benthos Research, January 2006, The Plankton Society of Japan/The Japanese Association of Benthology

    Mitsunori Iwataki

  90. Effects of temperature and salinity on the growth of four harmful red tide flagellates occurring in Isahaya Bay in Ariake Sound, Japan

    Article • NIPPON SUISAN GAKKAISHI, January 2006, Japanese Society of Fisheries Science

    Mitsunori Iwataki

  91. Heterocapsa psammophila sp. nov. (Peridiniales, Dinophyceae), a new sand-dwelling marine dinoflagellate

    Article • Phycological Research, December 2005, Wiley

    Mitsunori Iwataki

  92. Effect on bivalve molluscs of a harmful dinoflagellate Heterocapsa circularisquama isolated from Omura Bay, Japan and its growth characteristics

    Article • NIPPON SUISAN GAKKAISHI, January 2005, Japanese Society of Fisheries Science

    Mitsunori Iwataki

  93. Investigations of body scales in twelve Heterocapsa species (Peridiniales, Dinophyceae), including a new species H. pseudotriquetra sp. nov.

    Article • Phycologia, July 2004, Taylor & Francis

    Mitsunori Iwataki

  94. Wide distribution of Nitzschia navis-varingica, a new domoic acid-producing benthic diatom found in Vietnam

    Article • Fisheries Science, February 2004, Springer Science + Business Media

    Mitsunori Iwataki

  95. Cellular and body scale structure of Heterocapsa ovata sp. nov. and Heterocapsa orientalis sp. nov. (Peridiniales, Dinophyceae)

    Article • Phycologia, November 2003, Taylor & Francis

    Mitsunori Iwataki

  96. Sequence Analysis of 5.8S rDNA and the Internal Transcribed Spacer Region in Dinoflagellate Heterocapsa Species (Dinophyceae) and Development of Selective PCR Primers for the Bivalve Killer Heterocapsa circularisquama

    Article • Microbes and Environments, January 2003, Japanese Society of Microbial Ecology

    Mitsunori Iwataki

  97. New record of Heterocapsa circularisquama (Dinophyceae) from Hong Kong

    Article • Fisheries Science, October 2002, Springer Science + Business Media

    Mitsunori Iwataki

  98. Heterocapsa lanceolata sp. nov. and Heterocapsa horiguchii sp. nov. (Peridiniales, Dinophyceae), two new marine dinoflagellates from coastal Japan

    Article • Phycologia, September 2002, Taylor & Francis

    Mitsunori Iwataki

  99. Taxonomic study on Heterocapsa with special reference to their body scale ultrastructure

    Article • Fisheries Science, January 2002, Japanese Society of Fisheries Science

    Mitsunori Iwataki