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Zonation in the shoot apex ofMatthiola incana R. Br.

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Proceedings / Indian Academy of Sciences

Abstract

Zonation in the shoot apex ofMatthiola incana was studied histochemically from the mature embryo to flowering. The plumular apex of the mature embryo shows a single-layered tunica covering a homogeneous mass of cells. The first evidence of zonation is seen in the shoot apex of the 2-day old seedling. Zonation is well established on the fourth day after seed wetting with a single-layered tunica covering a lightly stained central mother cell zone, a subjacent pith meristem and a densely stained peripheral zone. In the transitional apex zonation is less marked and there is increased stratification. At 6-weeks, the apex changes into the indeterminate inflorescence apex showing acropetally developing floral primordia. The axially located cells of the inflorescence apex are lightly stained. The histological and histochemical data indicate that zonation resembling that in the vegetative apex is retained to a lesser degree in the inflorescence apex as well.

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Abbreviations

C:

corpus

CMZ:

central mother cell zone

CO:

core

CY:

cotyledon

FP:

primordium of the parts of the flower

LP:

leaf primordium

M:

mantle

PM:

pith meristem

PZ:

peripheral zone

T:

tunica

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Author notes

  1. Suresh Chand Goyal

    Present address: College of Agriculture, Haryana Agricultural University, 132021, Kaul (Kurukshetra), Haryana, India

Authors and Affiliations

  1. Department of Botany, University of Rajasthan, 302 004, Jaipur, India

    Vijay Goyal, Suresh Chand Goyal & Ambuja Pillai

Authors
  1. Vijay Goyal
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  2. Suresh Chand Goyal
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  3. Ambuja Pillai
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Goyal, V., Goyal, S.C. & Pillai, A. Zonation in the shoot apex ofMatthiola incana R. Br.. Proc. Indian Acad. Sci. 95, 349–356 (1985). https://doi.org/10.1007/BF03053246

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  • DOI: https://doi.org/10.1007/BF03053246

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