Apetiolar Photosynthate Translocation
نویسندگان
چکیده
منابع مشابه
Apetiolar photosynthate translocation.
Apetiolar transport of photosynthate (-14)C has been studied by feeding of (14)CO(2) to soybean petioles. Translocation occurs in the absence of leaves, but both the rate and velocity are diminished. The effect of root excision is not as profound as that of leaves. It appears, in some instances, to inhibit transport partially, so that accumulation of photosynthate develops, giving a steeper iso...
متن کامل13C-based model of photosynthate translocation
INTRODUCTION Symbiotic dinoflagellates of the genus Symbiodinium, commonly called zooxanthellae, live in the tissue of many scleractinian corals and are the major contributors to the primary productivity of reefs. Dinoflagellates fix inorganic carbon into organic molecules, partly use the photosynthetic products (photosynthates) for their own respiration and growth, and translocate a large frac...
متن کاملTranslocation of Photosynthate in Curly Top Virus-infected Tomatoes.
Photosynthate translocation in single leaflets of healthy and curly top virus-infected tomatoes was investigated using (14)C as a marker. The amount of radioactivity found in plant parts not exposed to (14)CO(2) was substantially lower in diseased than in healthy plants. The time lag for the appearance of (14)C in the petiole was considerably longer in the infected plants than in the healthy. T...
متن کاملHeterotrophy promotes the re-establishment of photosynthate translocation in a symbiotic coral after heat stress
Symbiotic scleractinian corals are particularly affected by climate change stress and respond by bleaching (losing their symbiotic dinoflagellate partners). Recently, the energetic status of corals is emerging as a particularly important factor that determines the corals' vulnerability to heat stress. However, detailed studies of coral energetic that trace the flow of carbon from symbionts to h...
متن کاملPhotosynthate translocation increases in response to low seawater pH in a coral–dinoflagellate symbiosis
This study has examined the effect of low seawater pH values (induced by an increased CO2 partial pressure) on the rates of photosynthesis, as well as on the carbon budget and carbon translocation in the scleractinian coral species Stylophora pistillata, using a new model based on 13C labelling of the photosynthetic products. Symbiont photosynthesis contributes to a large part of the carbon acq...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1966
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.41.7.1130