Botany New perspectives on secretory structures in Clusia (Clusiaceae - Clusiod clade): production of latex or resins? Journal: Botany Manuscript ID cjb-2019-0103.R2 Manuscript Type: Article Date Submitted by the 02-Dec-2019 Author: Complete List of Authors: Alencar, Ana Claudia; State University of Campinas, Biologia Vegetal Tölke, Elisabeth; State University of Campinas, Biologia Vegetal Mayer, Juliana; State University of Campinas, Biologia Vegetal Keyword: Cavities, glands,Draft Malpighiales, secretory structures, histochemistry Is the invited manuscript for consideration in a Special Not applicable (regular submission) Issue? : https://mc06.manuscriptcentral.com/botany-pubs Page 1 of 33 Botany New perspectives on secretory structures in Clusia (Clusiaceae - Clusiod clade): production of latex or resins? Ana Cláudia Alencar*¹; Elisabeth Dantas Tölke²; Juliana Lischka Sampaio Mayer*¹ ¹Universidade Estadual de Campinas, Instituto de Biologia, Departamento de Biologia Vegetal, rua Monteiro Lobato, 255, Campinas, SP. 2Universidade de São Paulo, Instituto de Biociência, Departamento de Botânica, rua do Matão, 277, Cidade Universitária, São Paulo, SP.
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[email protected] Tel. +55 (19) 9 8823-6779 1 https://mc06.manuscriptcentral.com/botany-pubs Botany Page 2 of 33 Abstract The Clusioid clade is quite diverse, encompassing the five families Clusiaceae, Bonnetiaceae, Calophyllaceae, Hypericaceae, and Podostemaceae. However, its members have important synapomorphies, such as the presence of xanthones, polyisoprenylated benzophenones, and quinones, as well as schizogenous secretory ducts and cavities, and tenuinucellate ovules. Due to the milky appearance of the exudate present in ducts of these families (except Bonnetiaceae), many authors have referred to this secretion as latex, while others have preferred to use the term resin.