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Plant Science Today (PST)

Research Articles

Vol. 12 No. 1 (2025)

Morpho-anatomy of cape gooseberry flowers (Physalis peruviana L.) at various stages of development

DOI
https://doi.org/10.14719/pst.3597
Submitted
24 March 2024
Published
30-01-2025 — Updated on 30-01-2025
Versions

Abstract

As an indigenous remedy for a variety of ailments, cape gooseberry (Physalis peruviana L.), a member of the Solanaceae family, has historically contributed significantly to health promotion. The metabolites contained in Physalis fruit have been used traditionally by some Chinese communities to treat and prevent various diseases, such as cancer and hepatitis. Research related to the analysis of secondary metabolites in cape gooseberry fruit has been widely conducted, but studies on the morphology and anatomy of flower development, especially in P. peruviana have not been carried out. This study aimed to examine the morphological and anatomical structure of P. peruviana flowers at various stages of development. The procedures included: collection of flower morphology data, preparation of anatomical slides of flowers using the paraffin embedding method and qualitative analysis. The observation results demonstrate that P. peruviana has a complete and perfect flower, which grows as a single axillary type with 5 sepals, attached to each other and is conventionally green with a purple tinge. The corolla is sticky and yellow, with a purple tinge on the neck. The stamen comprises 5 pale yellow anthers and a purple filament. From the bud initiation to anthesis, the development takes 13 days. The anther has 2 lobes or 2 thecae (dithecous) with four microsporangia (tetrasporangiate). The anther wall consists of 4 layers in stages I-V and 2 layers in stages VI and VII. Isobilateral microspores are of the tetrad type. The ovary comprises 2 carpels, while the ovule is anatropus type and has bitegmic structure. This study detailed the reproductive characteristics of P. peruviana and provided a reference framework for subsequent studies by aligning the floral reproductive development perspective to a phenological scope.

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