Photosynthesis and Respiration of Developing Populus tremuloides Internodes
نویسندگان
چکیده
منابع مشابه
Diurnal and Seasonal Patterns of Photosynthesis and Respiration by Stems of Populus tremuloides Michx.
The photosynthetic and respiratory rates of 5- to 7-year-old aspen stems (Populus tremuloides Michx.) were monitored in the field for 1 year to determine the seasonal patterns. The stem was not capable of net photosynthesis, but the respiratory CO(2) loss from the stem was reduced by 0 to 100% depending on the time of year and the level of illumination as a result of bark photosynthesis. The mo...
متن کاملPhysiological Characteristics of Photosynthesis and Respiration in Stems of Populus tremuloides Michx.
The physiological responses of 6- to 8-year-old aspen (Populus tremuloides Michx.) stems to temperature, light, and CO(2) concentration were investigated in the field throughout the year using infrared CO(2) analysis. Light response studies showed that the rate of gross photosynthesis was linear from 0 to 400 ft-c (0 to 1.6 mw/cm(2) of 400-700 nm) with light saturation being reached between 800...
متن کاملCoarse and fine root respiration in aspen (Populus tremuloides).
Coarse and fine root respiration rates of aspen (Populus tremuloides Michx.) were measured at 5, 15 and 25 degrees C. Coarse roots ranged from 0.65 to 4.45 cm in diameter, whereas fine roots were less than 5 mm in diameter. To discriminate between maintenance and growth respiration, root respiration rates were measured during aboveground growing periods and dormant periods. An additional measur...
متن کاملMicrosatellite DNA markers in Populus tremuloides.
Markers for eight new microsatellite DNA or simple sequence repeat (SSR) loci were developed and characterized in trembling aspen (Populus tremuloides) from a partial genomic library. Informativeness of these microsatellite DNA markers was examined by determining polymorphisms in 38 P. tremuloides individuals. Inheritance of selected markers was tested in progenies of controlled crosses. Six ch...
متن کاملDistribution and Anatomical Characteristics of White Rings in Populus Tremuloides
ʻWhite rings ̓have been reported to occur within trembling aspen (Populus tremuloides Michx.) during years of intense early defoliation by the forest tent caterpillar (Malacosoma disstria Hbn.). This study was undertaken to 1) assess the distribution of white rings within trembling aspen stems and 2) to quantify the anatomical differences between white rings and the ʻnormal ̓rings formed in the p...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1982
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.69.4.911