ワカメ胞子体の色落ち現象に対する鉄欠乏の影響

フォーマット:

論文

責任表示:

奥村, 真子 ; 三木, 理 ; 上野, 聡浩 ; 小杉, 知佳 ; 吉村, 航 ; 加藤, 敏朗 ; Okumura, Chikako ; Miki, Osamu ; Ueno, Akihiro ; Kosugi, Chika ; Yoshimura, Ko ; Kato, Toshiaki

言語:

日本語

出版情報:

海洋理工学会 = Advanced Marine Science and Technology Society, 2018

著者名:

奥村, 真子

三木, 理

上野, 聡浩

小杉, 知佳

吉村, 航

加藤, 敏朗

Okumura, Chikako

Miki, Osamu

Ueno, Akihiro

Kosugi, Chika

Yoshimura, Ko

Kato, Toshiaki

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掲載情報:

海洋理工学会誌 = Journal of Advanced Marine Science and Technology Society

ISSN:

1341-2752      

巻:

24

通号:

1

開始ページ:

25

終了ページ:

33

バージョン:

publisher

概要:

金沢大学理工研究域サステナブルエネルギー研究センター<br />The present study is an attempt for assessing the relationship between iron deficiency and discoloration in Undaria pinnatifida sporophytes. First, thallus discoloration and the decrease in photosynthet … ic pigment contents were examined in Undaria pinnatifida by employing an indoor iron-deficiency experiment. When Undaria pinnatifida sporophytes were cultured under iron-deficient conditions, which the iron concentrations were between 2 and 5 μg/L, the growth decreased, the thalli became discolored, and the photosynthetic pigment contents decreased. Iron deficiency caused the sporophytes to become lighter (L*) and less red (a*). Therefore, it appears that iron deficiency induces the discoloration of Undaria pinnatifida sporophytes, similar to how nitrogen and phosphorus deficiencies perform. Next, we investigated how the mechanism involved in the addition of iron affects the discolored Undaria pinnatifida sporophytes due to iron deficiency by performing an indoor iron-addition experiment. Undaria pinnatifida sporophyte growth, thallus color, and photosynthetic pigment content were all restored by the addition of dissolved iron solution, which the concentrations were between 10 and 50 μg/L. Iron addition made the sporophytes recover their lightness (L*) and redness (a*). In addition, the color was restored more quickly as the amount of added iron was increased. The discoloration of iron-deficient Undaria pinnatifida sporophytes can thus be restored by iron addition. 続きを見る

URL:

http://hdl.handle.net/2297/00052741