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Developmental anatomy of cotyledons and leaves in has mutant of Arabidopsis thaliana

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Summary.

In this work, we analyzed the developmental anatomy of cotyledons and leaves in the has mutant of Arabidopsis thaliana. It is a recessive T-DNA insertion mutation that causes changes in the size, shape, and tissue organization of the cotyledons and leaves of has plants. Analysis of has cotyledons revealed a prominent decrease in the cell number and an increase in the area of cotyledon cells and intercellular spaces of has plants. At early stages of development, has leaves are fingerlike structures, but later they develop small, lobed blades with rare trichomes. An important characteristic of the mutant leaf anatomy is the absence of mesophyll tissue differentiation. In addition, both cotyledons and leaves display a disrupted pattern of vascular bundles. Furthermore, mutant plants are defective in root and shoot morphology, indicating that the has mutation affects a number of aspects in plant development.

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Authors and Affiliations

  1. Institute of Botany and “Jevremovac” Botanical Garden, Faculty of Biology, Belgrade University, Belgrade

    D. Janošević

  2. Siniša Stanković Institute for Biological Research, Belgrade University, Belgrade

    B. Uzelac & S. Budimir

  3. Institute of Forestry, Belgrade

    D. Stojičić

Authors
  1. D. Janošević
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  2. B. Uzelac
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  3. D. Stojičić
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  4. S. Budimir
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Correspondence to D. Janošević.

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Correspondence and reprints: Institute of Botany and “Jevremovac” Botanical Garden, Faculty of Biology, Belgrade University, Takovska 43, 11 000 Belgrade, Serbia.

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Janošević, D., Uzelac, B., Stojičić, D. et al. Developmental anatomy of cotyledons and leaves in has mutant of Arabidopsis thaliana . Protoplasma 231, 7–13 (2007). https://doi.org/10.1007/s00709-007-0246-y

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  • DOI: https://doi.org/10.1007/s00709-007-0246-y

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