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).
The structural similarity of colleters with other types of secretory structures led researchers to confuse them with extrafloral nectaries and resin glands (Martins et al.
However, glandular trichomes and EFNs are distinct secretory structures (EVERT, 2013).
Morphoanatomy and development of leaf secretory structures in Passiflora amethystina Mikan (Passifloraceae).
Depending on the taxonomic group under study, the essential oil can be found in various secretory structures such as glandular trichomes, cavities, ducts and oil cells.
Thus, this paper aims to provide information about the secretory structures and their contents located in the leaf, flower, root and rhizome of A.
These trichomes, whether isolated or in groups, are often secretory structures such as nectaries, oil producing or salt excreting glands (Fahn 1979).
Starch has been found to serve as the predominant energy reserve in other well-studied secretory structures (Fahn 1979, Paiva & Machado 2008), and the juxtaposition of mitochondria and amyloplasts indicate the energy need for starch hydrolysis, as discussed by Paiva & Machado (2008).
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.
He provided a brief historical overview of theories concerning the development of secretory structures, and he proposed a classification scheme that was based on gland development.
Abstract: The genus Hymenaea is characterized by a great diversity of secretory structures
, but there are no reports of colleters yet.