Kazuki Tani

University of the Ryukyus

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Charles Santhanaraju Vairappan

Universiti of Malaysia Sabah

Takashi Kamada

Shizuoka Institute of Science and Technology

Takahiro Ishii

University of the Ryukyus

Sho Shirakashi

Kindai University

Chin‐Soon Phan

Latvijas Organiskās Sintēzes Institūts

Hiro’omi Uchida

Kindai University

Tomoki Honryo

Kindai University

Kazuo Ogawa

Meguro Parasitological Museum

Sang Phil Shin

Kongju National University

Yoong Soon Yong

UCSI University

Cooperative Institutions

Kitasato Institute Hospital

Kitasato University

Universiti of Malaysia Sabah

Kindai University

University of the Ryukyus

The University of Tokyo

Hokkaido University

Shizuoka Institute of Science and Technology

Tokyo Institute of Technology

Kobe Material Testing Laboratory (Japan)

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A novel aromatic compound from the fungus Synnemellisia sp. FKR-0921

The Journal of Antibiotics (2023)

Arisu Tahara Kazuki Tani M. Wakatsuki Toshiyuki Tokiwa Mayuka Higo

Absolute Configuration

Strain (injury)

10.1038/s41429-023-00657-4

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Citations (0)

Furanocembranoid from the Okinawan soft coral Sinularia sp.

Natural Products and Bioprospecting (2022)

Misaki Nagasaka Kazuki Tani Keisuke Nishikawa Riri Kinjo Takahiro Ishii

One new furanocembranoid diterpene, 11-hydroxy-Δ12(13)-pukalide (1), along with six known secondary metabolites, 11-acetoxy-Δ12(13)-pukalide (2), 13α-acetoxypukalide (3), pukalide (4), 3α-methoxyfuranocembranoid (5), Δ9(15)-africanene (6), and methyl (5'E)-5-(2',6'-dimethylocta-5',7'-dienyl)furan-3-carboxylate (7) were isolated from the Okinawan soft coral Sinularia sp. Their chemical structures were elucidated based on spectroscopic analysis (FTIR, NMR, and HRESIMS), and the relative stereochemistry of 1 was determined by NOESY experiments and acetylation, which yielded derivative 2. In addition, compounds 1 and 7 exhibited toxicity in the brine shrimp lethality test.

Brine shrimp

Artemia salina

Derivative (finance)

10.1007/s13659-022-00330-7

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Citations (3)

New Bioactive Sesquiterpenoid from Malaysian Soft Coral Genus Lemnalia

Heterocycles (2022)

Charles Santhanaraju Vairappan Kazuki Tani Takashi Kamada Chin‐Soon Phan

10.3987/com-22-14667

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Citations (1)

A New Bioactive Cembranolide Sarcophytonolide V from Bornean Soft Coral Genus Sarcophyton

Natural Product Communications (2019)

Kazuki Tani Takashi Kamada Chin‐Soon Phan Charles Santhanaraju Vairappan

A new cembranolide diterpene, sarcophytonolide V (1), along with 6 known compounds, isosarcophytonolide D (2), (4 Z,8 S*,9 R*,12 E,14 E)-9-hydroxy-1-(prop-1-en-2-yl)-8,12-dimethyl-oxabicyclo[9.3.2]-hexadeca-4,12,14-trien-18-one (3), (7 E,11 E)-3,4-epoxy-7,11,15-cembratriene (4), (1 S*,3 S*,4 S*,7 E,11 E)-3,4-epoxy-13-oxo-7,11,15-cembratriene (5), (-)-eunicenone (6), and 2-[( E, E, E)-7′,8′-epoxy-4′,8′,12′-trimethylcyclotetradeca-1′,3′,11′-trienyl]propan-2-ol (7) were isolated from the Bornean soft coral Sarcophyton sp. Their structures were elucidated based on spectroscopic data, such as nuclear magnetic resonance (NMR) and high resolution electron spray ionization mass spectroscopy (HRESIMS). These compounds were evaluated for their biological activity against marine pathogenic fungi.

Octocorallia

10.1177/1934578x19868375

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Citations (3)

Development of a quantitative polymerase chain reaction assay for the detection of skin fluke Neobenedenia girellae larvae from environmental water

Fisheries Science (2016)

Yasuo Agawa Kazuki Tani S. Yamamoto Chihaya Hirano Sho Shirakashi

Environmental DNA

Parasitology

10.1007/s12562-016-1016-6

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Citations (10)

Discovery of intermediate hosts for two species of blood flukes Cardicola orientalis and Cardicola forsteri (Trematoda: Aporocotylidae) infecting Pacific bluefin tuna in Japan

Parasitology International (2015)

Sho Shirakashi Kazuki Tani Katsuya Ishimaru Sang Phil Shin Tomoki Honryo

Thunnus

10.1016/j.parint.2015.11.003

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Citations (41)

Spatial and Temporal Changes in the Distribution of Blood Fluke Infection inNicolea gracilibranchis(Polychaeta: Terebellidae), the Intermediate Host forCardicola orientalis(Digenea: Aporocotylidae), at a Tuna Farming Site in Japan

Journal of Parasitology (2017)

Sho Shirakashi Kazuki Tani Katsuya Ishimuru Tomoki Honryo Sang Phil Shin

Fish blood flukes of the genus Cardicola (Digenea: Aporocotylidae) are important pathogens in tuna aquaculture. Recent advances in marine blood fluke research have led to the elucidation of the lifecycles of 3 Cardicola spp. infecting tuna; all 3 flukes utilize terebellid polychaetes as the intermediate host. In our survey, we obtained large numbers of Nicolea gracilibranchis infected by larval Cardicola orientalis at our tuna farming site. To determine the spatial and temporal changes in the distribution of N. gracilibranchis surrounding tuna culture cages and their infection by C. orientalis, we conducted monthly sampling for a period of 1 yr. Terebellids were most abundant on the floats and ropes of culture cages, but a significantly higher proportion of infected N. gracilibranchis was detected on ropes, particularly up to 4 m in depth. Cardicola orientalis infection in N. gracilibranchis was clearly seasonal, with a higher infection rate between April and July. Our findings indicate that the infected terebellids inhabit specific microhabitats, and both abiotic and biotic factors likely influence blood fluke infection in the intermediate terebellid host. This information is important to better understand the general biology of marine aporocotylids and may be useful to develop a control strategy for blood fluke infection in tuna aquaculture.

Digenea

Thunnus

10.1645/17-70

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Citations (8)

Developmental stages of fish blood flukes, Cardicola forsteri and Cardicola opisthorchis (Trematoda: Aporocotylidae), in their polychaete intermediate hosts collected at Pacific bluefin tuna culture sites in Japan

Parasitology International (2016)

Kazuo Ogawa Sho Shirakashi Kazuki Tani Sang Phil Shin Katsuya Ishimaru

Thunnus

Opisthorchis

Opisthorchis viverrini

Scombridae

10.1016/j.parint.2016.10.016

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Citations (14)

Phillipsins A and B from Zingiber phillippsii Mood & Theilade in Borneo

Records of Natural Products (2018)

Takashi Kamada Julius Kulip Kazuki Tani Chin‐Soon Phan Kishio Hatai

Two new aromatic compounds, phillipsins A (1) and B (2) were isolated from the Bornean wild ginger Zingiber phillippsii Mood & Theilade, and were characterized based on spectroscopic data (HRESI-MS, FTIR as well as 1D and 2D NMR).These metabolites also exhibited strong antifungal activity against selected fungi.

10.25135/rnp.33.17.09.145

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Citations (3)

Novel Acyclic Diterpene from Bornean Local Red Chilli Pepper Capsicum frutescens L.

Records of Natural Products (2022)

Charles Santhanaraju Vairappan Kazuki Tani Rolinus Paulous Norhidayah Tumiran

An unknown acyclic diterpene (3S, 6E, 10E, 14Z)-3-hydroxy-3,7,11,15-tetramethyl-1,6,10,14hexadecatetraene acid (1) along with four known secondary metabolites (3S, 6E, 10E, 14Z)-20hydroxygeranyllinalool (2), trans-capsaicin (3), nordihydrocapsaicin (4) and capsidiol (5) were isolated from the Bornean red chilli pepper Capsicum frutescens L. The structures of the secondary metabolites were determined based on spectroscopic data analysis such as NMR, HRESIMS, and IR data.The new compound 1 is a carboxylic acid precursor that would condensate with vanillylamine in the phenylpropanoid pathway in the biosynthesis of capsaicinoids.Discovery of this compound is an important milestone in our understanding of the capsaicinoids biosynthesis.

10.25135/rnp.339.2204.2443

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