[1]. Non-destructive estimation of chlorophyll content in wasabi (Eutrema japonicum) leaves using spectral reflectance and deep learning models
Journal of Food Composition and Analysis 151/ - (2026) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Nofrizal AY, Sonobe R, Yamashita H, Morita A, Ikka T [Notes] 植物栽培・分析を担当
[2]. Dietary cobalt suppresses starch-induced succinate accumulation via colonic synthesis of vitamin B12 and its analogues in rats
British Journal of Nutrition / - (2026) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Yamada C, Umeda T, Kawase T, Tsukahara T, Inoue R, Komaba Y, Yamashita H, Ikka T, Kato C, Hino S, Nishimura N [Notes] 元素分析を担当
[3]. Optimizing chlorophyll content prediction in tea leaves via spectral transformations and deep learning
BMC Plant Biol / - (2025) [Refereed] non-refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Tsuchiya Y, Yoshida K, Ishiguro Y, Kawaki J, Yamashita H, Ikka T, Sonobe R [Notes] サンプル採取、成分分析を担当
[4].
/ - (2025) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] 江本勇治, 村田裕行, 山下寛人, 一家崇志
[5]. Changes in fractionated rhizosphere soil phosphorus in acidic tea fields
Soil Science and Plant Nutrition / - (2025) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] author
[Author] Yanagisawa N, Yamashita H, Zhang S, Hirono Y, Morita A, Ikka T [DOI]
[6]. Effect of Ammonium:Nitrate Application Ratios on Growth and Nitrogen Metabolism of Tea Plants (Camellia sinensis L.)
Plant Direct / - (2025) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Enomoto T, Tone N, Ishii T, Hirono H, Oi A, Hirono Y, Ikka T, Yamashita H [URL]
[7].
/ - (2025) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] 江本勇治, 村田裕行, 山下寛人, 一家崇志
[8]. Deciphering the molecular underpinnings of anthocyanin accumulation in purple-leaf tea plant germplasm resources
Scientia Horticulturae / - (2025) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper
[Lead author or co-author] co-author
[Author] Huan Wang, Shicai Liang, Xuxu Lang, Yu Wang, Shan He, Hiroto Yamashita, Shuning Zhang, Lianying Wu, Jiaxuan Yue, Takashi Ikka, Zhaotang Ding, Wenjun Qian [DOI]
[9].
/17 23-30 (2025) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] 白鳥克哉, 小野嵩知, 内山通春, 山下寛人, 一家崇志, 片井秀幸, 加藤光弘 [Notes] 元素分析を担当
[10]. Exploring from Soil Acidification to Neutralization in Tea Plantations: Changes in Soil Microbiome and Their Impacts on Tea Quality
Reviews in Agricultural Science 13/1 66-80 (2025) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Shuning Zhang, Hiroto Yamashita, Takashi Ikka [DOI]
[11]. Soil chemical factors contributing to differences in bacterial communities among tea field soils and their relationships with tea quality
Frontiers in Plant Science / - (2025) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] author
[Author] Zhang S, Yanagisawa N, Asahina M, Yamashita H, Ikka T [DOI]
[12]. Real-time emulation of future global warming reveals realistic impacts on the phenological response and quality deterioration in rice.
Proc. Natl. Acad. Sci. USA 121/21 - (2024) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Itoh H, Yamashita H, Wada CK, Yonemaru J [Notes] Co-first authors．本研究の立案・実験、データまとめ、論文執筆を実施．
[DOI]
[13]. Alkaline Invertase 2 positively modulates cold adaptive of Camellia sinensis and enhances freezing and salt tolerance in transgenic Arabidopsis thaliana
Ind Crops Prod 209/ 118042- (2024) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper
[Lead author or co-author] co-author
[Author] Ba L, Wang H, Zhang S, Yamashita H, He S, Liang S, Wang Y, Ding Z, Fan K, Ikka T, Song C, Qian W. [DOI]
[14]. Genome-wide identification and expression analysis of sucrose phosphate synthase and sucrose-6-phosphate phosphatase family genes in Camellia sinensis.
Beverage Plant Research / 1-15 (2024) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper
[Lead author or co-author] co-author
[Author] Liang S, Wang H, Yamashita H, Zhang S, Lang X, Yue J, He S, Wang Y, Fan K, Ding Z, Ikka T*, Qian W*. [DOI]
[15].
61/11 522-525 (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] 一家崇志，山下寛人
[16]. Nutritional characterization on growth and ionome profiles in Japanese wasabi cultivars (Eutrema japonicum) under hydroponics
Soil Sci. Plant Nutr. / - (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Yamashita H, Mihara H, Hisamatsu S, Morita A, Ikka T [DOI]
[17]. Deciphering transcriptomic signatures explaining the phenotypic plasticity of nonheading lettuce genotypes under artificial light conditions
Plant, Cell & Environment / 1-15 (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Yamashita H, Wada CK, Inagaki N, Fujimoto Z, Yonemaru J, Itoh H [DOI]
[18]. Explore soil science and plant nutrition by omics. 3. Omics approaches contributing to the advancement of crop production
Jpn. J. Soil Sci. Plant Nutr. 94/4 - (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] author
[Author] 山下寛人
[19]. Effect of tea soil neutralization with slag on growth and quality of young tea plants
Jpn. J. Soil Sci. Plant Nutr. 96/5 - (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] 山崎惟吹, 山下寛人, 廣野祐平, 森田明雄, 一家崇志
[20]. Effects of Shallow Groundwater on Deep Groundwater Dynamics in a Slow-Moving Landslide Site.
International Journal of Erosion Control Engineering 15/4 - (2023) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Yokoyama K, Egusa T, Ikka T, Yamashita H, Imaizumi F. [Notes] イオン分析を担当．
[21]. Deciphering transcriptomic signatures explaining the phenotypic plasticity of non-heading lettuce genotypes under artificial light conditions
bioRxiv / - (2023) [Refereed] non-refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Hiroto Yamashita, Kaede C. Wada, Noritoshi Inagaki, Zui Fujimoto, Jun-ichi Yonemaru, Hironori Itoh [DOI]
[22]. Genetic effects of Red Lettuce Leaf genes on red coloration in leaf lettuce under artificial lighting conditions
Plant-Environment Interactions / - pei3.10089 (2022) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Kaede C. Wada, Noritoshi Inagaki, Hiroaki Sakai, Hiroto Yamashita, Yusuke Nakai, Zui Fujimoto, Jun-ichi Yonemaru, Hironori Itoh [Notes] 遺伝子型解析を担当
[DOI]
[23]. Estimating chlorophyll content of Zizania latifolia with hyperspectral data and random forest.
Int. J. Eng. Geo. 7/3 221-228 (2022) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Nofrizal AY, Sonobe R, Yamashita H, Morita A, Ikka T. [DOI]
[24]. Evaluation of a one-dimensional convolution neural network for chlorophyll content estimation using a compact spectrometer
Remote Sensing 14/9 - (2022) [Refereed] non-refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Adenan Yandra Nofrizal, Rei Sonobe, Hiroto Yamashita, Haruyuki Seki, Harumi Mihara, Akio Morita, Takashi Ikka [DOI]
[25]. Genetic Background Negates Improvements in Rice Flour Characteristics and Food Processing Properties Caused by a Mutant Allele of the PDIL1-1 Seed Storage Protein Gene.
15/1 13-13 (2022) [Refereed] non-refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Kiyosumi Hori, Tomoya Okunishi, Kenji Nakamura, Ken Iijima, Masahiro Hagimoto, Katsuyuki Hayakawa, Koka Shu, Takashi Ikka, Hiroto Yamashita, Masanori Yamasaki, Yoshinobu Takeuchi, Shota Koyama, Yoshimasa Tsujii, Toshiaki Kayano, Takuro Ishii, Toshihiro Kumamaru, Yasushi Kawagoe, Toshio Yamamoto [DOI]
[26]. (2) Cesium uptake and translocation from tea cutting roots (Camellia sinensis L.)
Journal of Environmental Radioactivity 235/236 - (2021) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Hiroto Yamashita, Yoshifumi Nishina, Naho Komori, Mizuho Kamoshita, Yasuhisa Oya, Kenji Okuno, Akio Morita, Takashi Ikka [DOI]
[27]. Tissue-Dependent Variation Profiles of Tea Quality-Related Metabolites in New Shoots of Tea Accessions
8/ - (2021) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper
[Lead author or co-author] co-author
[Author] Hiroto Yamashita, Hideyuki Katai, Toshiyuki Ohnishi, Akio Morita, Sanjib Kumar Panda, Takashi Ikka [DOI]
[28].
/ - (2021) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Rei Sonobe, Hiroto Yamashita, Adenan Yandra Nofrizal, Haruyuki Seki, Akio Morita, Takashi Ikka [DOI]
[29]. Potential of spectroscopic analyses for non-destructive estimation of tea quality-related metabolites in fresh new leaves.
11/1 4169-4169 (2021) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Hiroto Yamashita, Rei Sonobe, Yuhei Hirono, Akio Morita, Takashi Ikka [DOI]
[30]. Hyperspectral reflectance sensing for quantifying leaf chlorophyll content in wasabi leaves using spectral pre-processing techniques and machine learning algorithms
42/4 1311-1329 (2021) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Rei Sonobe, Hiroto Yamashita, Harumi Mihara, Akio Morita, Takashi Ikka [DOI]
[31]. Integrated Metabolome and Transcriptome Analyses Reveal Etiolation-Induced Metabolic Changes Leading to High Amino Acid Contents in a Light-Sensitive Japanese Albino Tea Cultivar
11/ - (2021) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Hiroto Yamashita, Yuka Kambe, Megumi Ohshio, Aya Kunihiro, Yasuno Tanaka, Toshikazu Suzuki, Yoriyuki Nakamura, Akio Morita, Takashi Ikka [DOI]
[32]. Phenotypic Markers Reflecting the Status of Overstressed Tea Plants Subjected to Repeated Shade Cultivation.
11/ 556476-556476 (2020) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Hiroto Yamashita, Yasuno Tanaka, Keisuke Umetsu, Sakurako Morita, Yoshiki Ono, Toshikazu Suzuki, Tetsuyuki Takemoto, Akio Morita, Takashi Ikka [DOI]
[33]. Estimation of Leaf Chlorophyll a, b and Carotenoid Contents and Their Ratios Using Hyperspectral Reflectance
/ - (2020) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Rei Sonobe, Hiroto Yamashita, Harumi Mihara, Akio Morita, Takashi Ikka [DOI]
[34]. Dissection of hyperspectral reflectance to estimate nitrogen and chlorophyll contents in tea leaves based on machine learning algorithms
Scientific reports 10/1 17360-17360 (2020) [Refereed] non-refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] author
[Author] Yamashita, H., Sonobe, R., Hirono, Y., Morita, A., Ikka, T. [DOI]
[35]. Genomic predictions and genome-wide association studies based on RAD-seq of quality-related metabolites for the genomics-assisted breeding of tea plants
Scientific reports 10/1 17480-17480 (2020) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Yamashita, H., Uchida, T., Tanaka, Y., Katai, H., Nagano, A.J., Morita, A., Ikka, T. [DOI]
[36]. Tissue ionome response to rhizosphere pH and aluminum in tea plants (Camellia sinensis L.), a species adapted to acidic soils.
Plant-Environment Interactions / - (2020) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Yamashita, H., Fukuda, Y., Yonezawa, S., Morita, A., Ikka, T. [DOI]
[37]. (12) Analyses of single nucleotide polymorphisms identified by ddRAD-seq reveal genetic structure of tea germplasm and Japanese landraces for tea breeding
PLOS ONE 14/8 - e0220981 (2019) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Yamashita, H., Katai, H., Kawaguchi, L., Nagano, A.J., Nakamura, Y., Morita, A., Ikka, T. [DOI]
[38]. Quantitative validation of nicotine production in tea (Camellia sinensis L.).
PLOS ONE 13/4 - e0195422 (2018) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Ikka, T., Yamashita, H., Kurita, I., Tanaka, Y., Taniguchi, F., Ogino, A., Takeda, K., Horie, N., Hojo, F., Nanjo, F., Morita, A [DOI] |