Premium
A survey of ontogeny pericarp features as contribution to the infratribal characterization of Myrteae (Myrtaceae)
Author(s) -
Galan Adrielle Tayrine Oliveira Froemming,
Martos Luana,
Machado Nayara Carreira,
Mourão Káthia Socorro Mathias
Publication year - 2016
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/njb.01028
Subject(s) - biology , ontogeny , botany , myrtaceae , tribe , plant anatomy , plant morphology , genetics , sociology , anthropology
With the aim of correlating the pericarp structure with current phylogenies of Myrteae, this study describes the ontogeny in five species included in five out of the six South American clades of the tribe. In these taxa, the outer and inner ovarian epidermis gives rise to the exocarp and the endocarp, respectively, both with 1 layer. In the mesocarp, derived from the ovarian mesophyll, secretory cavities are arranged into a circle just below the exocarp and near the endocarp in Campomanesia adamantium ; only below the exocarp in Eugenia pitanga and Myrcia multiflora ; more internally in Myrciaria cuspidata , and below the exocarp and throughout the mesophyll in Myrceugenia alpigena . The promising traits for phylogenetic studies in the group include: direction of elongation of pericarp layers, regions that develop most in relation to the circle of larger vascular bundles, differentiation of spongy and sclerenchymatous tissues and position of secretory cavities.