ホーム    このサイトについて    論文の投稿について        English    図書館    茨城大学    問合せ

茨城大学機関リポジトリ >
理学部 >
雑誌掲載論文(理学部) >

 
タイトル :Correlation of Photosynthetic Products of Symbiotic Chlorella with the Mating Reactivity Rhythms in a Mutant Strain of Paramecium bursaria
著者 :TANAKA, Miho / MIWA, Isoji
作成日 :2000
要約(Abstract) :Paramecium bursaria shows many kinds of circadian rhythms, including a mating reactivity rhythm. P. bursaria cells normally contain several hundred Chlorella in the cytoplasm as endosymbionts. We found an interesting mutant strain (Ok2) from nature. Chlorella-contain green cells (Ok2) showed a normal mating reactivity rhythm in a constant light condition (LL) or constant darkness (DD). However, Chlorella-free white cells (Ok2w) derived from Ok2 did not display a mating reactivity rhythm in LL. In DD, they showed a normal mating reactivity rhythm. When Ok2w cells were infected with Chlorella isolated from green cells that show normal mating reactivity rhythms, they exhibited a circadian mating rhythm in LL. The green Ok2 cells reverted to the non-reactive state in LL by treatment with the herbicide paraquat. Sugar components in the cytosol of Ok2 and Ok2w were analyzed by HPLC, and four kinds of sugars were identified in Ok2 cells of day time. When maltose and maltotriose were added to Ok2w cell culture, the mating reactivity rhythms appeared in white cells in LL. These results suggest that the photosynthetic products of symbiotic Chlorella are closely related to the expression of circadian rhythms in a mutant strain of P. bursaria.
収録種別 :雑誌掲載論文
公開者・出版者 :Zoological Society of Japan
出版社版URL :http://www.bioone.org/doi/full/10.2108/zsj.17.735
URI :http://hdl.handle.net/10109/1973
掲載雑誌 :Zoological Science Vol.17 no.6 p.735 -742
出現コレクション:雑誌掲載論文(理学部)

登録ファイル

ファイル 記述 サイズフォーマット
20100501.pdf75KbAdobe PDF見る/開く