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Peer-reviewedCC BY 4.0Frontiers in Plant Science

A review of the morphology of ohatsuki (stamen- or ovule-bearing) leaves, with relevance to physiological analyses of Ginkgo biloba

  • Yoshie Uchida1,2,3
  • Hongqiao Lu1
  • Sayumi Hotta1
  • Hirofumi Yamashita4
  • Masami Kobayashi5
  • Hakuto Kageyama2
  • Kazuhito Inoue6,7
  • Hidenobu Uchida1,3,6
7 affiliations
  1. 1Department of Food Business, Nagoya Bunri University
  2. 2Graduate School of Environmental and Human Sciences, Meijo University
  3. 3Sobue Ginkgo biloba Research Laboratory
  4. 4Department of Information and Environmental Science, Kyoto Prefectural University
  5. 5Department of Material Science, University of Tsukuba
  6. 6Research Institute for Integrated Science, Kanagawa University
  7. 7Department of Biochemistry and Biotechnology, Kanagawa University
Open at sourceDOICite

Abstract

A Ginkgo biloba variant in which either stamens or ovules are generated on the edge of the leaf is known as “ohatsuki icho”. In this review, we highlight the morphological similarities among ohatsuki leaves, reproductive organs, and the leaves and seeds of fossil plants. Although ohatsuki phenotypes appear to be controlled by sex-related bud sports, their expression seems to be only possible in the river system, in the presence of seasonal winds, suggesting water-related control. We discuss a previous report suggesting that water conductance may contribute to the occurrence of ohatsuki malformations in ohatsuki shoots and leaves, although a physiological evaluation of water transpiration in ohatsuki leaves has yet to be conducted. The information presented in this review may provide insights into the evaluation of the above-mentioned hypothesis and may identify key factors related to sexual evolution in land plants.

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Cite

BibTeXRIS
BibTeX
@article{uchida2026review,
  title = {{A review of the morphology of ohatsuki (stamen- or ovule-bearing) leaves, with relevance to physiological analyses of Ginkgo biloba}},
  author = {Yoshie Uchida and Hongqiao Lu and Sayumi Hotta and Hirofumi Yamashita and Masami Kobayashi and Hakuto Kageyama and Kazuhito Inoue and Hidenobu Uchida},
  journal = {Frontiers in Plant Science},
  year = {2026},
  month = oct,
  doi = {10.3389/fpls.2026.1983013},
  url = {https://www.frontiersin.org/articles/10.3389/fpls.2026.1983013/full},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - A review of the morphology of ohatsuki (stamen- or ovule-bearing) leaves, with relevance to physiological analyses of Ginkgo biloba
AU  - Yoshie Uchida
AU  - Hongqiao Lu
AU  - Sayumi Hotta
AU  - Hirofumi Yamashita
AU  - Masami Kobayashi
AU  - Hakuto Kageyama
AU  - Kazuhito Inoue
AU  - Hidenobu Uchida
PY  - 2026
DA  - 2026/10/29
JO  - Frontiers in Plant Science
DO  - 10.3389/fpls.2026.1983013
UR  - https://www.frontiersin.org/articles/10.3389/fpls.2026.1983013/full
AB  - A Ginkgo biloba variant in which either stamens or ovules are generated on the edge of the leaf is known as “ohatsuki icho”. In this review, we highlight the morphological similarities among ohatsuki leaves, reproductive organs, and the leaves and seeds of fossil plants. Although ohatsuki phenotypes appear to be controlled by sex-related bud sports, their expression seems to be only possible in the river system, in the presence of seasonal winds, suggesting water-related control. We discuss a previous report suggesting that water conductance may contribute to the occurrence of ohatsuki malformations in ohatsuki shoots and leaves, although a physiological evaluation of water transpiration in ohatsuki leaves has yet to be conducted. The information presented in this review may provide insights into the evaluation of the above-mentioned hypothesis and may identify key factors related to sexual evolution in land plants.
SN  - 1664-462X
ER  -