Anatomical study of Cornus mas L. and Cornus officinalis Seib. et Zucc. (Cornaceae) endocarps during their development

Abstract

abstract.Results of anatomical studies on the developing endocarps of Cornus mas and C. officinalis are presented. Formation of an endocarp and anatomical changes in its structure from the flowering stage to fully developed fruits were observed with the use of LM and SEM. In the process of anatomical development of endocarps the formation of two layers, i.e. the inner and the outer endocarp, was observed. Changes in their anatomical structure consisted in a gradual thickening of cell walls and their lignification. The lignification of endocarp cell walls begins in the inner endocarp, it proceeds in the outside parts of the outer endocarp, with an exception of several layers of cells forming the transition zone (circular strand) present on its margin, and finally, almost at the same time, in the rest of the outer endocarp. Cell walls of the cells distinguishing the germinating valves undergo thickening delayed by several days in comparison to other endocarp cells. Thickening of their cell walls starts in cells situated close to the inner endocarp and proceeds to its outer parts, and their lignification is not very intensive. The described scheme of the development and lignification of C. mas and C. officinalis endocarps is similar to that of Prunus cerasus (Rosaceae).

Cretaceous origin of dogwoods: an anatomically preservedCornus(Cornaceae) fruit from the Campanian of Vancouver Island

“…1, 2B–2D). This layer is interpreted as the inner endocarp (sensu Morozowska, Gawrońska & Woźnicka, 2013; Morozowska & Wysakowska, 2016). Outside of the inner endocarp is a zone of isodiametric sclereids, 18–30 µm wide, and secretory cavities, 50–100 µm wide, that form a uniseriate cycle around each locule (Figs.…”

“…1, 2A–2D). This tissue is designated as the outer endocarp (sensu Morozowska, Gawrońska & Woźnicka, 2013; Morozowska & Wysakowska, 2016). …”

Comparative Study of Cytotoxicity and Antioxidant, Anti-Aging and Antibacterial Properties of Unfermented and Fermented Extract of Cornus mas L.

“…Dogwood is eaten in dried, pickled form, but also as jams, marmalades, juices and in fresh form [7]. Dogwood is cultivated for its ornamental value, but also for its many health benefits [8]. In recent years, there has been increasing interest in studying the biological properties of dogwood and its potential use in the field of medicine and health.…”

The critical role of fossils in inferring deep‐node phylogenetic relationships and macroevolutionary patterns in Cornales

“…Recent paleobotanical studies have characterized several exceptionally preserved cornalean fruits from Cretaceous deposits. These fruits contain a number of systematically informative characters (Eyde, , , , ; Yembaturova et al., ; Manchester et al., ; Atkinson, ; Atkinson et al., , Atkinson et al., , ; Morozowska and Wysakowska, ; Stockey et al., ). Therefore, fossil fruits, particularly from Cretaceous deposits, have much potential for elucidating deep‐node relationships and ancient evolutionary patterns within Cornales (Atkinson, ; Stockey et al., ; Atkinson et al., ).…”