Abstract:
Background: Genus Solidago is represented in the Republic of Moldova flora by two species: S. virgaurea – spontaneous and S. canadensis – cultivated,
known as medicinal plants in the world, also being studied in our country. The objective of this paper was the comparative microscopic study of Solidago
species from the Republic of Moldova flora.
Material and methods: Superficial preparations and sections were made from vegetal products of S. virgaurea and S. canadensis species and studied in
the Micros microscope coupled with digital camera.
Results: The main specific structural indicators with diagnostic role in the identification of g. Solidago species from the flora of the Republic of Moldova
were highlighted: the presence of secretory channels in rhizome and stem (both species); the contour of stem in cross-section (polygonal outline –
S. virgaurea, circular outline – S. canadensis); the mesophyll structure of leaf (dorsoventral mesophyll – S. virgaurea, equifacial mesophyll – S. canadensis);
anomocytic type of stomata (both species); multicellular protective conical trichomes and flabelliform ones (both species); secretory trichomes (with
unicellular foot – S. virgaurea, and with multicellular one – S. canadensis); abundant pappus composed of multiseriate bristles and spherical pollen grains
(both species).
Conclusions: S. virgaurea and S. canadensis species from the Republic of the Moldova flora could be identified by specific structural indices that have
an important diagnostic role.
Description:
Department of Pharmacognosy and Pharmaceutical Botany, Scientific Center for Drug Research Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, the Republic of Moldova, The 75th anniversary of Nicolae Testemitanu State University of Medicine and Pharmacy of the Republic of Moldova (1945-2020)