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Positive correlation between tolerance to continuous UV-B irradiation, chloroplast numbers, chlorophyll content, and starch grain content in normal and variegated Japanese butterbur (Petasites japonicus) leaves
http://hdl.handle.net/10780/1662
http://hdl.handle.net/10780/1662e55b1efe-1e9b-4f54-ac00-3a5b3db11032
名前 / ファイル | ライセンス | アクション |
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3-05-Yamasaki-2015.pdf (5.3 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-08-20 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Positive correlation between tolerance to continuous UV-B irradiation, chloroplast numbers, chlorophyll content, and starch grain content in normal and variegated Japanese butterbur (Petasites japonicus) leaves | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ETYP:教育関連論文 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | chlorosis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | green sectors | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | white sectors | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
山﨑, 聖司
× 山﨑, 聖司× AKIYOSHI, Yuko× YAMANAKA, Saori× 原田, 雅章× YAMAKUCHI, Ryusei |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A community containing both normal and variegated Japanese butterbur (Petasites japonicus) was found in a field at the Fukuoka University of Education campus in April 2012. Variegated Japanese butterbur leaves contained fewer chloroplasts, chlorophyll, and starch grains in green sectors, and lacked chloroplasts, chlorophyll, and starch grains in chlorotic (white) sectors, compared to those of normal Japanese butterbur. To investigate the effect of environmental factors on variegated Japanese butterbur leaves, both normal and variegated Japanese butterbur were irradiated with low (0.35 W m-2) and high (1.67 W m-2) levels of ultraviolet-B (UV-B). Our results indicate the following order of sensitivity to UV-B irradiation: white sectors in variegated Japanese butterbur leaves are the most sensitive to both low- and high-level UV-B irradiation, green sectors in variegated Japanese butterbur leaves are second, and green leaves of normal Japanese butterbur are third. Therefore, there is a positive correlation between tolerance to UV-B irradiation and content of chloroplasts, chlorophyll, and starch grains in Japanese butterbur leaves. Because starch grains are effective UV-B reflectors whereas chlorophylls are not efficient UV-B absorbers, starch might contribute primarily to UV-B tolerance. Solar UV-B irradiation might be one of the causes of scorching observed in white sectors of variegated Japanese butterbur leaves in the field. | |||||
書誌情報 |
福岡教育大学紀要. 第三分冊, 数学・理科・技術科編 Bulletin of Fukuoka University of Education. Part III, Mathematics, natural sciences and technology 巻 64, p. 59-68, 発行日 2015-02-10 |
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論文ID(NAID) | ||||||
識別子タイプ | NAID | |||||
関連識別子 | 40020373433 | |||||
出版者 | ||||||
出版者 | 福岡教育大学 | |||||
資源タイプ | ||||||
値 | 紀要論文 Article |