Faculty Profiles - TERADA Ryuta

Papers - TERADA Ryuta

Division display 21 - 40 of about 174 ／ All the affair displays >>

Natsumi Shimada; Gregory N. Nishihara; Ryuta Terada . The effect of temperature and irradiance on the photosynthesis of a seagrass, Halodule uninervis from Amami-Oshima Island, Kagoshima . Nippon Suisan Gakkaishi89 ( 2 ) 115 - 126 2023.3Reviewed

Authorship：Last author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Fisheries Science

The effect of temperature and irradiance on the photosynthesis of a tropical seagrass, Halodule uninervis, from Amami-Oshima Island, Kagoshima, Japan, close to the northern distributional limit in the western Pacific, was determined using a pulse amplitude modulation (PAM)-chlorophyll fluorometer and dissolved oxygen sensors. The response of oxygenic photosynthesis to irradiance (0–1000 µmol photons m－2 s－1) at 15 and 24℃ revealed that the maximum net photosynthesis (NPmax) was 14.7 and 51.9 μg O2 gww－1 min－1, respectively. The temperature response of gross photosynthesis (8–40℃) showed that the highest gross photosynthetic rate occurred at 30.5℃ (ToptGP). In contrast, the temperature response of the maximum quantum yield (Fv/Fm) of photosystem II after 3 days of cultivation in darkness revealed that Fv/Fm gradually increased to the optimal temperature (ToptFv/Fm) of 23.9℃, then gradually declined at higher temperatures. The combined effects of 12-hour chronic exposure to temperature and irradiance at 15 and 24℃, under 300 and 1000 μmol photons m－2 s－1 showed that the depression of Fv/Fm was more pronounced under low temperature with high irradiance, indicating the occurrence of chronic low temperature-light stress.

DOI： 10.2331/suisan.22-00035

Scopus

CiNii Research

uka Toyoya (Koyano, Masato Hirose, Tomoyuki Nakano, Hironori Komatsu, Ryuta Terada, Takashi Toyofuku, Yukiko Nagai, Hitoshi Imai, Yusuke Oyamada, Akitsugu Mukai, Dairou Kawaguchi, Ryuichi Minato, Hideaki Mori, Hiroshi Miyake . Preliminary report of marine macrofauna of Nishinoshima Island . Ogasawara Research49 113 - 168 2023.3

Yukiko Yonemori; Shogo Kokubu; Gregory N. Nishihara; Hikaru Endo; Ryuta Terada . The effects of desiccation and salinity gradients in the PSII photochemical efficiency of an intertidal brown alga, Sargassum fusiforme from Kagoshima, Japan . Phycological Research71 ( 1 ) 3 - 12 2023.1Reviewed International journal

Tomohiro Ito; Toui Yoshioka; Hiromori Shimabukuro; Gregory N. Nishihara; Hikaru Endo; Ryuta Terada . The effect of temperature, light‐spectrum, desiccation and salinity gradients on the photosynthetic performance of a subtidal brown alga, Sargassum macrocarpum, from Japan . Phycological Research71 ( 1 ) 25 - 36 2023.1Reviewed International journal

Natsumi Shimada; Iori Tatamidai; Gregory N. Nishihara; Ryuta Terada . The effect of temperature and light on the photosynthesis of annual Zostera marina seedlings from Kagoshima, Japan . Nippon Suisan Gakkaishi88 ( 6 ) 472 - 484 2022.11Reviewed

Authorship：Last author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japanese Society of Fisheries Science

The effect of temperature and light on the photosynthesis of seedlings of Zostera marina from the annual population in Kagoshima, Japan was determined by field and laboratory measurements using a pulse amplitude modulation (PAM)-chlorophyll fluorometer. The response of oxygenic photosynthesis to temperature (8-40℃) was also examined with dissolved oxygen sensors to compare with effective quantum yields (ΔF/Fm′) of photosystem II. The temperature response of ΔF/Fm′ under 50 μmol photons m−2 s−1 (12L12D photoperiod) and during five days of cultivation revealed that ΔF/Fm′ gradually increased to the optimal temperature at 23.1℃ (ToptΔF/Fm′; 19.0-27.4℃), then quickly declined at higher temperatures. The 12-hour chronic combined effects of temperature and light at 8 and 20℃, under 200 and 1,000 μmol photons m−2 s−1 showed that the depression of ΔF/Fm′ was more pronounced under the low temperature with high light, indicating the occurrence of chronic low temperature-light stress. The temperature response of the oxygenic gross-photosynthesis curve indicated an optimal temperature at 31.0℃ (ToptGP; 28.4-33.2℃), then declined at higher temperatures. The underwater measurements of natural communities of Z. marina in Kagoshima showed that ΔF/Fm′ declined with increasing incident light, with a minimum occurring during noon to early afternoon. Nevertheless, ΔF/Fm′ recovered by sunset.

DOI： 10.2331/suisan.22-00011

Scopus

CiNii Research

Other Link： https://www.jstage.jst.go.jp/article/suisan/88/6/88_22-00011/_pdf/-char/ja

Natsumi Shimada; Gregory N. Nishihara; Ryuta Terada . Diurnal change of the photochemical efficiency in a seagrass, Enhalus acoroides, based on the measurement under incident sunlight . Aquaculture Science70 ( 3 ) 277 - 280 2022.10Reviewed

Authorship：Last author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society for Aquaculture Science

The diurnal change in photochemical efficiency of a seagrass, Enhalus acoroides was determined in Okinawa, Japan. The measurements under incident sunlight were conducted from sunrise through sunset using a submersible pulse amplitude modulation (PAM)-chlorophyll fluorometer (Diving-PAM). The effective quantum yield (ΔF/Fm’) declined with increasing incident sunlight in the morning, with a ΔF/Fm’ minima occurring during noon-time. Thereafter, the ΔF/Fm’ gradually recovered during the afternoon incident sunlight decreased, indicating a dynamic negative response to the excess sunlight. The decline of ΔF/Fm’ in the habitat is likely a photoprotective response to protect the photosynthetic reaction center from damage by excess light energy.

File： Shimada_2022_Enhalus_Aquaculture_Science_277-280.pdf

DOI： 10.11233/aquaculturesci.70.277

CiNii Research

Clyde Puilingi; Suh Nih Tan; Yukari Maeno; Chui Pin Leaw; Po Teen Lim; Mari Yotsu-Yamashita; Ryuta Terada; Yuichi Kotaki . First record of the diatom Nitzschia navis-varingica (Bacillariophyceae) producing amnesic shellfish poisoning-toxins from Papua New Guinea . Toxicon216 65 - 72 2022.9Reviewed International coauthorship International journal

Yamada Motomi, Maeno Yukari, Kotaki Yuichi, Terada Ryuta, Hidaka Masafumi, Kudo Yuta, Cho Yuko, Konoki Keiichi, Yamashita Mari Yotsu- . Preparation of domoic acid and kainic acid analogues using the cyclases, and evaluation of their toxicities . Symposium on the Chemistry of Natural Products, symposium papers64 ( 0 ) 301 - 304 2022.8

Aoi Shindo; Gregory N. Nishihara; Iris Ann Borlongan; Ryuta Terada . Interactive effects of temperature and irradiance including spectral light quality on the photosynthesis of a brown alga Saccharina japonica (Laminariales) from Hokkaido, Japan . Algal Research 2022.7Reviewed International coauthorship International journal

Yoichi Sato; Gregory N. Nishihara; Atsuko Tanaka; Dominic F. C. Belleza; Azusa Kawate; Yukio Inoue; Kenjiro Hinode; Yuhei Matsuda; Shinichiro Tanimae; Kandai Tosaki; Ryuta Terada; Hikaru Endo . Variability in the net ecosystem productivity (NEP) of seaweed farms . Frontiers in Marine Science9 861932 2022.5Reviewed

Aoi Shindo; Gregory N. Nishihara; Iris Ann Borlongan; Ryuta Terada . The effects of desiccation and salinity gradients in the photochemical efficiency of a subtidal brown alga, Saccharina japonica (Laminariales) from Hokkaido, Japan . Phycological Research70 ( 2 ) 89 - 96 2022.4Reviewed International coauthorship International journal

Taylor S. Steele; John K. Brunson; Yukari Maeno; Ryuta Terada; Andrew E. Allen; Mari Yotsu-Yamashita; Jonathan R. Chekan; Bradley S. Moore; . Domoic acid biosynthesis in the red alga Chondria armata suggests a complex evolutionary history for toxin production . Proceedings of the National Academy of Sciences of the United States of America119 ( 6 ) e211740711 2022.2Reviewed International coauthorship International journal

Yoichi Sato, Daisuke Saito, Gregory N. Nishihara, Ryuta Terada . Effects of different stressors on the PSII photochemical efficiency and application to sporeling transportation in cultured young sporophytes of Undaria pinnatifida . Journal of Applied Phycology34 ( 1 ) 551 - 563 2022.2Reviewed International journal

Takahiro Kurahori, Hiromori Shimabukuro, Ryuta Terada, . Phenology and environmental characteristics of two species of Sargassum (Fucales), S. hemiphyllum and S. glaucescens from Kagoshima Bay, Japan . Nippon Suisan Gakkaishi88 ( 1 ) 12 - 19 2022.1Reviewed

Ryuta Terada, Aoi Shindo, Miwa Tanaka, Satoshi Esaki . Long-term change in seaweed assemblages in Nagashima Island, Kagoshima Prefecture: Disappearance of the canopy-forming kelp and fucoid algae from coastal areas facing the East China Sea . Nippon Suisan Gakkaishi87 ( 6 ) 631 - 641 2021.11Reviewed

Stacy A. Krueger-Hadfield, James E. Byers, Guido Bonthond, Ryuta Terada, Florian Weinberger, Erik E. Sotka . Intraspecific diversity and genetic structure in the widespread macroalga Agarophyton vermiculophyllum. . Journal of Phycology57 ( 5 ) 1403 - 1410 2021.10Reviewed International coauthorship International journal

Masahiro Suzuki, Ryuta Terada . Morpho-anatomical and molecular reassessments of Rhodymenia prostrata (Rhodymeniaceae, Rhodophyta) from Japan support the recognition of Halopeltis tanakae nom. nov. . Phycologia 2021.8Reviewed International journal

Yukari Maeno, Yuichi Kotaki, Ryuta Terada, Masafumi Hidaka, Yuko Cho, Keiichi Konoki, and Mari Yotsu-Yamashita . Preparation of domoic acid analogues using a bioconversion system and their toxicity in mice . Organic & Biomolecular Chemistry19 7894 2021.8Reviewed International journal

Kenjiro Hinode, Hoshimi Kamisaki, Gregory N. Nishihara, Ryuta Terada . The phenology of epiphytic diatoms and epifauna observed on Zostera marina of Arikawa Bay, Nagasaki Prefecture, Japan . Plankton and Benthos Research16 ( 3 ) 179 - 190 2021.8Reviewed International journal

Yoichi Sato, Hikari Nagoe, Gregory N. Nishihara, Ryuta Terada . The photosynthetic response of cultivated juvenile and mature Undaria pinnatifida (Laminariales) sporophytes to light and temperature . Journal of Applied Phycology33 ( 5 ) 3437 - 3448 2021.7Reviewed International journal

　 PREV - NEXT 　

<TERADA Ryuta>

Papers - TERADA Ryuta