Abstract:
Introduction: New obtained genotypes of L. angustifolia require complex studies to
determine the adaptive capacity to climatic conditions and the potential for volatile oils accumulation. Purpose: Microscopic study and highlighting of structural indices with diagnostic
role in determining the adaptive and biosynthetic potential. Material and methods: Lavender plants micropreparations: hybrids –
Fr.5S8-24 (1); Cr.13S-6-7 (2); Fr.8-5-15V (3); cultivars – Vis Magic 10 (4), Alba 7 (5),
Moldoveanca 4 (6), Aroma Unica (7) and were analyzed under the microscope Micros . with
camera. Results: The analysis of leaf micrographs of 7 new lavender genotypes, characterized by different maturation periods,
allowed to highlight the structural indices to identify the potential of: 1) volatile oils accumulation – the development degree of
octacellular glandular and secretory hairs (number/1cm2, distribution mode on epidermis, gland dimensions); mesophilic
thickness and palisade/lacunar parenchyma thickness correlation; 2) adaptation to the stressors action: the thickness of cuticle,
cell walls, epidermis, leaf blade and the thickness correlation of the upper/lower epidermis, epidermis/mesophilic; development
degree of the protective trichomes, mechanical elements (sclerenchymal fibers, colenchyma) and the distribution. Conclusions: The highlighted structural indices will serve to identify new perspective genotypes for
obtaining volatile oils with adaptogenic potential to the Moldova climatic conditions.
Description:
Chair of pharmacognosy and pharmaceutical botany, Nicolae Testemitanu SUMPh, Chisinau, Republic of Moldova, Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină și Farmacie „Nicolae Testemițanu” din Republica Moldova, Ziua internațională a științei pentru pace și dezvoltare
