How does cell morphology differ at different stages of flower development? (Bioe80 Spr2015)
May 26, 2015 • 8:36 PM UTC
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gustakaelo
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We found 3 flowers of the same species at different developmental stages (a bud, an opening bud, and a mature flower). After initially observing color differences with the naked eye in the filament and anther regions, we were interested in possible shape, structure, size, and color differences between specimens at the cellular level.
The filaments of mature flowers are white in color, Those of developing, budding flowers are a yellowish/brown color. Other differences observed with the naked eye include longer stigma and style in more mature flowers.
The filaments of mature flowers are white in color, Those of developing, budding flowers are a yellowish/brown color. Other differences observed with the naked eye include longer stigma and style in more mature flowers.
The filament region in the mature flower has cells stacked in patterns, forming black tube structures extending across the filament. The regions between the tube-like structures look like regions in the immature buds.
The filament region in the opening bud has only one black tube structure of cells stacked together. The rest of the filament is comprised of yellowish specs of cells.
The filament region from the closed bud is yet to have the black, tube-like stack of cells. Most of the cells are yellow in color. Some are organized in lines, but not lines as thick as the tube-like structures found in open buds and mature flowers.
We observed clear differences in the three specimens, showing interesting aspects of plant developmental biology. We are interested in how these differences translate to function. Why are there more tube-like structures in anthers of mature flowers? How do the different cell types cause color differences? What kind of signaling is necessary for cell differentiation.
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