In this region, the epidermal cell of the secretory structure
surrounded by polygonal cells to circular cells arranged in radiated form could be observed (Figure 1A).
In Ocimum gratissimum L., the authors observed changes in the secretory structure
responsible for oil production and storage (SANTANA et al., 2014).
Individual cells or parts of the secretory structures
were first identified as a region of interest (shortly ROI) and marked by rings or rectangles.
This finding is the opposite pattern from that found in most gonochoric gobioid species, in which sperm duct-associated secretory structures
have been described only in association with the male reproductive system.
Colleters are secretory structures
characterized by elongated central axis formed by fundamental parenchyma, surrounded by an epidermal palisade layer (DA CUNHA & VIEIRA 1993/97).
Three-dimensional reconstruction of adult female mouse submandibular gland secretory structures
However, glandular trichomes and EFNs are distinct secretory structures
From these researches, we could see that alkaloids of leaves are mainly distributed in epidermis (protective tissue), parenchyma, and secretory structures
. In our studies, the alkaloids of leaves of Thymus quinquecostatus could be observed in the glandular trichomes.
These trichomes, whether isolated or in groups, are often secretory structures
such as nectaries, oil producing or salt excreting glands (Fahn 1979).
These tested exercises include instructions for preparing microscope slides and sectioning and staining plant material and chapters on complex tissues, secretory structures
, reproductive organs, and related topics.
Plant gums, resins, and essential oils are often produced in large quantities by specialized secretory structures
. These include glandular trichomes, secretory cavities, and secretory ducts.
A diversity of secretory structures
is involved in the production of different compounds from secondary metabolism, documented in a number of Euphorbiaceae species (Metcalfe and Chalk 1950).