SCANNING ELECTRON MICROSCOPY INVESTIGATION ON THE SPERMODERMA OF GROWN IN BULGARIA CULTIVARS FROM GENUS SALVIA, LAVANDULA, AND OCIMUM

V. Zheljazkov, D. Terziisky
Morphological and scanning electron microscopy investigations were conducted upon the spermoderma of widely grown Bulgarian essential oil plants: Salvia sclarea L. (cultivars Bojana, Trakfika and Selekcia), Lavandula angustifolia Miller (cultivars Druzhba, Hernus, Jubileina and Sevtopolys), and Ocimum basilicum L. (cultivars Trakia, Mesten and Nemsky). Except for seed shape and size, we analyzed the following ultrastructural features: general aspect of spermoderma; shape of the epidermal cells; characteristic of the anticlinal and periclinal walls and submicroscopyc characteristic of hylum. The general peculiarities and specific differences in the ultrastructure of spermoderma of investigated species (cultivars) were established.

S. sclarea and O. basilicum seeds are different in respect to shape and size of the seeds, but they are similar in respect to ultrastructural characteristic of the outer spermoderma surface.

The seeds of L. angustifolia are similar in size but different in shape to those of O. basilicum L. They are characterized with specific shape and type of the epidermal cells, of the testa and to these symptoms they are clearly distinguished from the other two species.

No differences in shape, size and submicroscopic sculpture of the testa between cultivars within one species were established.

Zheljazkov, V. and Terziisky, D. (1996). SCANNING ELECTRON MICROSCOPY INVESTIGATION ON THE SPERMODERMA OF GROWN IN BULGARIA CULTIVARS FROM GENUS SALVIA, LAVANDULA, AND OCIMUM. Acta Hortic. 426, 473-482
DOI: 10.17660/ActaHortic.1996.426.51
https://doi.org/10.17660/ActaHortic.1996.426.51

Acta Horticulturae