Studies on Morphological Changes of the Blue-green Alga Nostoc muscorum A with Special Reference to the Role of Light
スポンサーリンク
概要
- 論文の詳細を見る
Morphological changes of Nostoc muscorum A were studied with special reference to growth conditions. According to Lazaroff (1973), N. muscorum A has a life cycle dependent on the light conditions; cells of a coccoid form grow in the dark (aseriate stage) while cells of a filamentous form grow in light (seriate stage). The conversion from the aseriate to the seriate stage is photocontrolled by red stimulation and green suppression. We reexamined (i) the light effect on the morphological forms of N. muscorum A growing under various conditions, including N_2-fixing and non-fixing, and (ii) the light effect on the control of the aseriate to seriate conversion in the dark in relation to the effect on the dark growth. Results for (i) indicated that cell forms did not necessarily depend on the light but were determined by growth conditions; under conditions sufficient for supporting rapid growth, cells grew at the seriate stage, and under insufficient conditions, at the aseriate stage. The light effect to induce and support filamentous growth was explained as the photosynthetic energy supply for improving the growth. Results for (ii) revealed that red light induced the dark aseriate to seriate conversion and at the same time enhanced the dark growth after the illumination. Green light suppressed both the conversion and the dark growth stimulated by red light. The red-green photocontrol of the dark conversion was explained by the enhancing effect of red light and the inhibitory effect of green light on the dark growth. Morphological changes between coccoid and filamentous forms of N, muscorum A are probably not obligatory for continued growth.
- 日本植物生理学会の論文
著者
-
Fujita Yoshihiko
Ocean Research Institute, University of Tokyo
-
Isono Takahiro
Ocean Research Institute University Of Tokyo
-
Fujita Yoshihiko
Ocean Research Institute University Of Tokyo
関連論文
- Comparison of main emissions at -196℃ from phycobilisomes of two blue-green algae Anabaena cylindrrca and Anacystis nidulans
- Quantitative relationship between two reaction centers in the photosynthetic system of blue-green algae
- Studies on Morphological Changes of the Blue-green Alga Nostoc muscorum A with Special Reference to the Role of Light
- Action of Near UV and Blue Light on the Photocontrol of Phycobiliprotein Formation : A Complementary Chromatic Adaptation
- Photoreversible absorption changes of guanidine-HCl-treated phycocyanin and allophycocyanin isolated from the blue-green alga Tolypothrix tenuis
- In vivo transformation of phycobiliproteins during photobleaching of Tolypothrix tenuis to forms active in photoreversible absorption changes
- Photocontrol of phycoerythrin formation in the blue-green alga Tolypothrix tenuis growing in the dark
- On the Relationship between Photocontrol of Phycoerythrin Formation and Photoreversible Pigment of Scheibe
- Studies on the Hill reaction of membrane fragments of blue-green algae V. A correlation between the solubilization of a photochemically active chromoprotein (ACP) and the inactivation of photosystem II activity in membrane fragments of Anabaena cylindrica
- Photochemical activity fluorescence and absorption spectrum of the photochemically active chromoprotein (ACP) isolated from the blue-green alga Anabaena cylindrica
- The separation and characterization of the photoreactive component of a photochemically active chromoprotein (ACP) obtained from the blue-green alga Anabaena cylindrica
- Pyrone derivatives : effective inhibitors of photosynthetic electron flow system
- Light-dependent oxygen uptake by non-living, chlorophyll-containing particles obtained from oceanic environments
- A probable lack of function of c-type cytochrome in the photosynthetic system of the blue-green alga Anabaena variabilis
- Changes in photosynthetic activity of the diatom Phaeodactylum tricornutum in a culture of limited volume
- Studies on the Hill reaction of membrane fragments of blue-green algae I. Stabilizing effect of various media on the 2,6-dichlorophenol indophenol-Hill activity of membrane fragments obtained from Anabaena cylindrica and Anabaena variabilis
- Immunological identification of pigment component of a photochemically active chromoprotein (ACP) isolated from the blue-green alga Anabaena cylindrica
- Ascorbate photo-oxidation by a photochemically active chromoprotein isolated from the blue-green alga Anabaena cylindrica : the effect of monochromatic illumination
- Carotenoid photobleaching induced by the action of photosynthetic reaction center II : DCMU-sensitivity
- Studies on the Hill reaction of membrane fragments of blue-green algae II. The reaction steps inactivated at high water concentration
- Studies on the Hill reaction of membrane fragments of blue-green algae IV. Carotenoid photobleaching induced by photosystem II action
- The light-induced oxidation-reduction reaction of cytochrome b-559 in membrane fragments of the blue-green alga Anabaena variabilis
- Electron donor-specificity observed in photosystem I reactions of membrane fragments of the blue-green alga Anabaena variabilis and the higher plant Spinacea oleracea
- Studies on the Hill reaction of membrane fragments of blue-green algae III. Fluorescence characteristics of membrane fragments of Anabaena variabilis and Anabaena cylindrica
- Phycoerythrin of the marine blue-green alga Trichodesmium thiebautii
- The C550 photoresponse at room temperature observed in membrane fragments of the blue-green alga Anabaena variabilis
- Carotenoid photobleaching induced by photosystem II action in the membrane fragments of the blue-green alga Anabaena variabilis : Action of O_2