Light Conditions for Sexual Reproduction in Heterothallic Strains of Closterium
スポンサーリンク
概要
- 論文の詳細を見る
Sexual reproduction in heterothallic strains of Closterium peracerosum-strigosum-littorale, KAS-4-29 (mating type minus) and KAS-4-30 (mating type plus), depended on a light intensity higher than 3,000 lux. Two kinds of cell division occurred in the mating medium: l) one kind occurred at low light intensity (less than 1,000 lux) and was not linked to conjugation, and 2) a sexual one occurred at high light intensity (higher than 3,000 lux) and was linked to conjugation. 3-(4-Chlorophenyl)-1,1-dimethylurea at l μM added at the beginning of the mating culture completely inhibited conjugation but not cell division. Chloramphenicol at 20 to 40 μg/ml added at the beginning of the culture inhibited conjugation completely and cell division partly. The drugs added after 12 h of the mating culture did not inhibit the division processes. Varying light intensity after 12 h of culture did not affect sexual activity. The photosynthetic activity was highest in the cells at the beginning of the mating culture, and then markedly decreased. The data indicate that the early period of the mating process depends strictly on the light conditions.
- 日本植物生理学会の論文
著者
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Takagi Tsutomu
Department Of Cardiology Osaka City University Graduate School Of Medicine
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KATO Atsushi
Department of Hostpital Pharmacy, Graduate School of Medicine and Pharmaceutical Sciences, Universit
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Sasaki Kimiko
Department of Botany, Faculty of Science, Hokkaido University
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Sasaki Kimiko
Department Of Botany Faculty Of Science Hokkaido University
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Takagi Tsutomu
Departmen Of Cardiology Kobe General Hospital
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Kato Atsushi
Department Of Biomass Chemistry Forestry And Forest Products Research Institute
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Kato Atsushi
Department Of Biological Science Graduate School Of Life And Environment Science Shimane University
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