Mutual relation of protozoans and symbiotic Algae in Paramaecium bursaria. II. Photosynthesis
نویسندگان
چکیده
منابع مشابه
Viruses of symbiotic Chlorella-like algae isolated from Paramecium bursaria and Hydra viridis.
We previously reported that isolation of symbiotic Chlorella-like algae from the Florida strain of Hydra viridis induced replication of a virus (designated HVCV-1) in the algae. We now report that isolation of symbiotic Chlorella-like algae from four other sources of green hydra and one source of the protozoan Paramecium bursaria also induced virus synthesis. Algae from one of these hydra conta...
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Algae-free Paramecium bursaria was exposed to cells of Chlorella sp. for 30 s (pulse) and then incubated in algae-free medium for periods between 0 and 15 min. During this chase the fate of the vacuoles formed during the exposure to algae 'was followed in order to reveal the moment of perialgal vacuole (PV) formation. PVs are characterized by always enclosing an individual algal cell and thus d...
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The behavioural responses to light in the ciliate Paramecium bursaria Focke, which normally contains hundreds of the symbiotic green alga Chlorella in its cytoplasm, were analysed quantitatively to clarify the mechanisms governing photoreception in the cell. P. bursana was found to possess three kinds of photoreceptor systems for (1) the step-up photophobic response (system I), (2) the step-dow...
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15 صفحه اولPhotosynthesis and photorespiration in algae.
The CO(2) exchange of several species of fresh water and marine algae was measured in the laboratory to determine whether photorespiration occurs in these organisms. The algae were positioned as thin layers on filter paper and the CO(2) exchange determined in an open gas exchange system. In either 21 or 1% O(2) there was little difference between (14)CO(2) and (12)CO(2) uptake. Apparent photosy...
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ژورنال
عنوان ژورنال: Acta Societatis Botanicorum Poloniae
سال: 2015
ISSN: 2083-9480
DOI: 10.5586/asbp.1967.009