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- Title
HISTOLOGICAL STUDY OF THE FRUIT OF RIBES NIGRUM L. AND RIBES RUBRUM L. (GROSSULARIACEAE).
- Authors
Laczkó-Zöld, Eszter; Komlósi, Andrea; Varga, Erzsébet; Eşianu, Sigrid; Papp, Nóra
- Abstract
Background: Positive effect of currants has been described on the dietary management of various diseases in many reports. In phytochemical aspect, polyphenolic substances of their fruits and the leaves have anti-inflammatory, antioxidant, antifungal, and anticancer effect. In the seed oil of black currant (Ribes nigrum L.) and red currant (Ribes rubrum L.) tocopherol and unsaturated fatty acids were identified. Despite the pharmacological potential of the fruits and the wide range of studies on chemical composition, there are few studies on the morpho-anatomical description of the fruits as medicinally used parts in some Ribes species. According to our best knowledge, there is no available study concerning the histology of Ribes nigrum and R. rubrum. Thus, this work aimed to perform a comparative morpho-anatomical characterization of the fruits of black currant and red currant. Material and methods: Preparations of both fruits were made with rotation microtome, then the cross sections were stained with toluidine blue. Documentation and evaluation were carried out in microphotos. Results: Differences were observed in the shape of the epidermis cells and vascular bundles in both fruits. In Ribes rubrum, the epidermis cells are ovoid to round, while those of R. nigrum are rectangular to almost round. Under the epidermis, in both fruits, there are two layers of oval hypodermal cells. Underneath the hypodermal layers the parenchyma composes of different size of thick-walled cells and scattered vascular bundles. In R. nigrum, the vascular bundles consist of xylem, phloem and phloem fibers, while in R. rubrum they contain only xylem and phloem. The seeds are embedded in a gelatinous sheath having large thick-walled mucilage cells. Endocarp separates the arillar tissue from the parenchyma cells, in addition, a gap can be found between this layer, arillar tissue and seeds. The seed coat (testa) consists of sclerenchyma cells in both species. Conclusions: Histological differences and similarities were described in the fruits of the selected Ribes species.
- Subjects
EUROPEAN black currant; PHYTOCHEMICALS; POLYPHENOLS; PLANT morphology; PLANT anatomy
- Publication
Acta Medica Marisiensis, 2018, Vol 64, p22
- ISSN
2068-3324
- Publication type
Article