Abstract
Apparent photosynthesis and dark respiration were followed during development in four light environments of leaves of Fragaria virginiana Duchesne. Leaf expansion was completed more rapidly the higher the growth photon flux density and leaves senesced more quickly in high light. Maximum photosynthetic capacity coincided with the completion of blade expansion and declined quickly thereafter. Leaves were transferred from high to low and low to high photon flux densities at several stages during expansion. Leaf photosynthetic performance and anatomy were subsequently analyzed. Leaf anatomy and apparent photosynthesis per unit dry weight can be modified during expansion to reflect the predominant light conditions. Adaptive potential is greatest early in blade expansion and decreases as expansion is completed.
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Selected References
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- Abramovich D. R., Towler C. M., Bohn H. The binding of sex steroids in human maternal and fetal blood at different stages of gestation. J Steroid Biochem. 1978 Aug;9(8):791–794. doi: 10.1016/0022-4731(78)90202-9. [DOI] [PubMed] [Google Scholar]
- Bunce J. A., Patterson D. T., Peet M. M. Light acclimation during and after leaf expansion in soybean. Plant Physiol. 1977 Aug;60(2):255–258. doi: 10.1104/pp.60.2.255. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Freeland R. O. EFFECT OF AGE OF LEAVES UPON THE RATE OF PHOTOSYNTHESIS IN SOME CONIFERS. Plant Physiol. 1952 Oct;27(4):685–690. doi: 10.1104/pp.27.4.685. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nobel P. S., Zaragoza L. J., Smith W. K. Relation between Mesophyll Surface Area, Photosynthetic Rate, and Illumination Level during Development for Leaves of Plectranthus parviflorus Henckel. Plant Physiol. 1975 Jun;55(6):1067–1070. doi: 10.1104/pp.55.6.1067. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Smillie R. M. Photosynthetic & respiratory activities of growing pea leaves. Plant Physiol. 1962 Nov;37(6):716–721. doi: 10.1104/pp.37.6.716. [DOI] [PMC free article] [PubMed] [Google Scholar]