Micromorphological features of the leaf epidermis of the evening primrose cultivars of the VILAR biocollection
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Kuupäev
2021
Kättesaadavus
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Novelty of the work. For the first time, a comparative study of the epidermis of the
leaf plates of four cultivars of Oenothera biennis L. was carried out. The aim of the work. Study
and comparison of morpho-anatomical signs of the epidermis of the leaf plate of the cultivars of
evening primrose to reveal their potential ecological plasticity. Materials and methods. There
were used leaves of plants of the second year of life in the phase of mass flowering.
Micromorphological study of the epidermis of leaf plates included: determination of the shape of
the main cells of the epidermis, the size and number of stomata per 1 mm2
, the type of stomatal
apparatus, the presence and parameters of trichomes. The number of trichomes was calculated
per 1 mm2
. Results. In the Genoteros cultivar, the stomata were smaller; their number on the
lower epidermis was the lowest. Two types of trichomes were classified. At cultivar Genoteros
unicellular covering trichomes were mainly located in the upper epidermis of the leaf. No
covering trichomes were found in the Svetlyachok cultivar. The Tverskoj cultivar differs in the
length of the hairs: from 774 to 790 microns. Papillary single-celled trichomes on the leaves of
the studied cultivar of evening primrose are concentrated on both sides of the epidermis, mostly
in the middle part of the leaf, less often - in the mesophyll space. Conclusion. Based on the
obtained data, the authors established the potential ecological plasticity of the studied varieties of
evening primrose for the subsequent study of the influence of stress factors on the described
cultivars. The results obtained may be important taxonomic for the correct identification of
problematic Onagraceae taxa and in further breeding work.
Kirjeldus
Received: May 8th, 2021 ; Accepted: June 19th, 2021 ; Published: June 22th, 2021 ; Correspondence: nordfenugreek@gmail.com
Märksõnad
Oenothera biennis L., leaf plate, cultivars, epidermis, stomata, trichomes, articles