INVESTIGADORES
CHIARINI Franco Ezequiel
artículos
Título:
Fruit anatomy of species of Solanum sect. Acanthophora (Solanaceae)
Autor/es:
CHIARINI, F. & G. BARBOZA
Revista:
FLORA
Referencias:
Año: 2009 vol. 204 p. 146 - 156
ISSN:
0367-2530
Resumen:
The
fruits of 10 species of Solanum sect. Acanthophora were studied. Cross and/or
longitudinal and/or tangential microtome sections, stained mostly with astra
blue/basic fuchsin, were made for microscopic examination. Three different
kinds of cells were found in the epidermis, immediately below which a
hypodermis, consisting in any of four types of structures, was always found. The
mesocarp exhibits two histologically differentiated zones, an external one (formed
by normal or spongy parenchyma, according to the species), and an internal one,
commonly juicy, and with proliferations among the seeds. The diagnostic value
of all these structures is assessed. Morpho-anatomical information is used to
define fruit types beyond the berry, traditionally described for Solanum, and
the probable dispersal syndrome related to them is discussed. Fruit
similarities are slightly noticeable in several cases, while differences may be
the result of their sexual system which affects specially the size and
their histology, which is related to the dispersal syndrome. The comparison of
our data with previous molecular phylogeny of the section suggests that a
significant morphological variation is not associated with significant DNA
sequence changes.