GrainGenes Reference Report: RJG-51-249
Reference
RJG-51-249
Title
Genome-dependent factors in the development of leaf phototrophic tissues in diploid and alloploid wheat species
Journal
Russian Journal of Plant Physiology
Year
2004
Volume
51
Pages
249-256
Author
Khramtsova EV Kiseleva IS
Abstract
Growth and mesostructure of the photosynthetic apparatus were studied in leaves of ten Triticum species, namely T. boeoticum subsp. thaoudar var. balansae, T. monococcum subsp. macedonicum, T. sinskajae, T. timopheevi var. viticulasum, T. dicoccum, T. persicum, T. aestivum, T. macha, T. spelta and T. vavilovii [ Aegilops vavilovii ]. Plants with the A SUP u genome were shown to develop larger leaf assimilation areas due to expanding areas of individual leaves and an increase in the absolute growth rate. Leaf and mesophyll thickness and mesophyll cell size decreased in the G-genome species. Leaf compactness, which depended on cell size and number per unit leaf area and leaf folding, determined the specific patterns of internal leaf organization in wheat species with diverse genotypes. These patterns did not affect cell plastid-to-cytoplasm ratio as shown by the stable indices of cell surface area/cell volume, cell surface area per chloroplast, and cell volume per chloroplast. The structural indices of leaf phototrophic tissues, mesophyll density, and mesophyll CO SUB 2 conductance in alloploids, compared to diploid species, depended on both ploidy and genome constitution
Keyword
allopolyploidy
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GrainGenes Reference Report: RJG-51-249
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||