Publications by authors named "Y Himuro"

The size of plants is largely determined by growth of the stem. Stem elongation is stimulated by gibberellic acid. Here we show that internode stem elongation in rice is regulated antagonistically by an 'accelerator' and a 'decelerator' in concert with gibberellic acid.

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Article Synopsis
  • - Auxin and cytokinin play key roles in callus formation and shoot regeneration in plants, but challenges with callus formation persist for many species, limiting transformation processes.
  • - A new compound, fipexide (FPX), has been identified as a potent inducer for callus formation and shoot regeneration, distinguished by a different cellular organization compared to traditional methods using auxin/cytokinin.
  • - Microarray analysis showed that FPX treatment significantly up-regulated 971 genes, with many overlapping with auxin/cytokinin responses, indicating its potential as a tool for advancing plant biotechnology across various species like rice, poplar, and tomato.
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Photon upconversion (UC) is a technology that can increase solar utilization efficiencies in broad photoenergy conversion systems by converting lower-energy photons into usable higher-energy photons. Recently, UC using triplet-triplet annihilation (TTA) of organic molecules has drawn attention because it is presently the only method applicable to weak and noncoherent light. To date, many attempts have been made to realize this UC technology in forms suitable for applications, but they typically suffer from either high cost or insufficient stability and/or safety of materials.

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