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The peltate trichomes of Bromeliaceae comprise an important feature of this plant group. Although recognized for their capacity for water and nutrient absorption, little is known concerning their secretory functions. This study aimed to identify and describe the structures observed to secrete mucilage in the inflorescences of Aechmea blanchetiana, a species of Bromeliaceae endemic to Brazil. Samples...
Young fronds from several fern species are covered by mucilage, but its synthesis and functional roles remain understudied. The young leaves of the tropical ferns Amauropelta cheilanthoides, Amauropelta pachyrhachis and Steiropteris decussata are covered by a hyaline layer of highly hydrophilic mucilage that is produced by glandular trichomes (GTs). In order to better understand the morphology and...
The colleter secretion can be useful to protect plants of Cerrado (Brazilian savanna) biome during the long and pronounced dry season. This study describes the presence of colleters in Tontelea micrantha and represents the first record of these structures in Celastraceae. To investigate colleter structure and their secretory processes, young leaves were collected, fixed, and processed according to...
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