Effect of plant growth substances on the formation of carpelloid structures from tobacco ovules |
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Authors: | Norio Katoh Sumio Iwai |
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Institution: | (1) Applied Plant Research Laboratory, Japan Tobacco Inc., 1900 Idei, Oyama, 323 Tochigi, Japan |
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Abstract: | Excised ovules with placentae developed into carpelloids consisting of stigma-like, style-like and ovule-like structures.
Kinetin was necessary for the formation of carpelloids in immature ovules which were excised from the flower buds containing
pollen grains at bicellular stage. However, plant growth substances were not necessary for these formations in younger ovules
which were excised from the flower buds containing pollen grains at unicellular stage. The morphological characteristics of
the stigma-like and style-like structures were similar to those of normal tissues, and their functions were the same. |
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Keywords: | Carpelloid Nicotiana tabacum Organogenesis Ovule Stigma-like Style-like |
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