Continuous UV-B Irradiation Induces Morphological Changes and the Accumulation of Polyphenolic Compounds on the Surface of Cucumber Cotyledons
-
- YAMASAKI Seiji
- Laboratory of Plant Physiology, Department of Science Education, Faculty of Education, Fukuoka University of Education
-
- NOGUCHI Naoto
- Laboratory of Plant Physiology, Department of Science Education, Faculty of Education, Fukuoka University of Education
-
- MIMAKI Kotaro
- Laboratory of Plant Physiology, Department of Science Education, Faculty of Education, Fukuoka University of Education
この論文をさがす
抄録
Sharp-headed and globular-headed trichomes are found on the surface of cucumber (Cucumis sativus L.) cotyledons. Most sharp-headed trichomes consist of three cells. Toluidine blue O stains sharp-headed but not globular-headed trichomes. The effect of continuous ultraviolet-B (UV-B; 290-320 nm) irradiation on the surface of cucumber cotyledons was examined with respect to the two trichome types. Continuous UV-B irradiation induced cell division at or under the basal part of sharp-headed trichomes, resulting in an increase in the number of cell layers from three to six. In parallel, the area stained by toluidine blue O expanded to include epidermal cells surrounding sharp-headed trichomes. Regions of alkali-induced fluorescence due to the presence of polyphenolic compounds coincided with areas stained by toluidine blue O. In contrast, continuous UV-B irradiation did not cause morphological changes in globular-headed trichomes. Thus, continuous UV-B irradiation causes the accumulation of polyphenolic compounds in cucumber cotyledons and induces specific morphological changes in or around sharp-headed trichomes. UV-B exposure also increases lignin content in this tissue. Therefore, continuous UV-B irradiation may induce the specific accumulation of polyphenolic compounds, especially stress lignins, in and near sharp-headed trichomes.<br>
収録刊行物
-
- Journal of Radiation Research
-
Journal of Radiation Research 48 (6), 443-454, 2007
Journal of Radiation Research 編集委員会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282680194342144
-
- NII論文ID
- 110006452326
-
- NII書誌ID
- AA00705792
-
- COI
- 1:CAS:528:DC%2BD1cXhslymsbk%3D
-
- ISSN
- 13499157
- 04493060
-
- NDL書誌ID
- 9256445
-
- PubMed
- 17690531
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- PubMed
- NDL-Digital
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可