CO2 Exchange and Mesophyll Structure in Second-Year Needles of Abies sibirica Ledeb.

CO2 Exchange and Mesophyll Structure in Second-Year Needles of Abies sibirica Ledeb. Seasonal changes in the net photosynthesis and dark respiration in second-year needles of Siberian fir were investigated. The functional state of needles was shown to determine the structural features of mesophyll cells. Current-year shoot growth is one of the major factors affecting the structure and functional activity of second-year needles during the growing period. The greatest changes occur in the number of mitochondria in mesophyll cells and the respiration rate of second-year needles. The rate of photosynthesis in second-year needles was shown to depend on the number of thylakoids in mesophyll chloroplasts. Russian Journal of Plant Physiology Springer Journals

CO2 Exchange and Mesophyll Structure in Second-Year Needles of Abies sibirica Ledeb.

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Kluwer Academic Publishers-Plenum Publishers
Copyright © 2003 by MAIK “Nauka/Interperiodica”
Life Sciences; Plant Sciences
Publisher site
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