Hokkaido University · 지구·행성과학
Toshiki Uji 교수의 연구실은 주로 해조류, 특히 붉은해조류(Pyropia yezoensis 등)와 갈색해조류(Saccharina japonica 등)를 모델로 하여 생식 전환, 발달 조절, 세포외기질 단백질의 기능 등 식물 호르몬과 세포외기질의 역할을 탐구하고 있습니다. 특히 에틸렌 전구체인 ACC가 해조류에서 성숙기 전환을 유도하는 독립적 메커니즘을 규명하며 식물 호르몬의 기능에 대한 새로운 통찰을 제공했습니다. 또한, 해조류의 유전자 변형 기술 개발과 핵 유전자 발현을 위한 코돈 최적화 기반 선택표지 개발을 통해 생물공학적 응용 가능성도 모색하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The transition from the vegetative to sexually reproductive phase is the most dynamic change to occur during a plant's life cycle. In the present study, we showed that the ethylene precursor 1-aminocylopropane-1-carboxylic acid (ACC) induces sexual reproduction in the marine red alga <i>Pyropia yezoensis</i> independently from ethylene. Exogenous application of ACC, which contains a three membered carbocyclic ring, promoted the formation of spermatia and carporspores in gametophytes, whereas eth
Marine macroalgae play an important role in marine coastal ecosystems and are widely used as sea vegetation foodstuffs and for industrial purposes. Therefore, there have been increased demands for useful species and varieties of these macroalgae. However, genetic transformation in macroalgae has not yet been established. We have developed a dominant selection marker for stable nuclear transformation in the red macroalga Pyropia yezoensis. We engineered the coding region of the aminoglycoside pho
Seaweeds or macroalgae are important primary producers that serve as a habitat for functioning ecosystems. A sustainable production of macroalgae has been maintained by a diverse range of life cycles. Reproduction is the most dynamic change to occur during its life cycle, and it is a key developmental event to ensure the species' survival. There is gradually accumulating evidence that plant hormones, such as abscisic acid and auxin, have a role on the sporogenesis of brown alga (<i>Saccharina ja
Extracellular matrix (ECM) proteins play crucial roles in the regulation of cell proliferation and differentiation. We identified homologous genes encoding ECM proteins that are known to associate with integrins in animal cells in red macroalga Neopyropia yezoensis. Four genes encoding spondin domain-containing proteins (NySPLs) and eight genes encoding fasciclin domain-containing proteins (NyFALs) from N. yezoensis were selected for bioinformatics and expression analysis in order to obtain insi
<i>Saccharina japonica</i>, a significant brown macroalga in the Pacific Ocean, serves as a food source and industrial material. In aquaculture, collecting mature sporophytes for seedling production is essential but challenging due to environmental changes. In this study, transcriptomic analysis of vegetative and sorus tissues was done to identify differentially expressed genes (DEGs) and enhance our understanding of sorus formation regulation in <i>S. japonica</i>. KEGG pathway and Gene Otology
