Leaf micrografic anatomy of the Neotropical palm Bactris gasipaes (Arecaceae)

Chaimsohn, F.P.; Montiel, M.; Villalobos, E.; Mora Urpi, J.

Revista de Biologia Tropical 56(2): 951-959


ISSN/ISBN: 0034-7744
PMID: 19256456
Accession: 054092868

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The economic importance of the palm Bactris gasipaes is growing in the Neotropoical region. We collected leaflets from plants under a chemical fertilization regime and a population of 5000 plants per hectare, in Costa Rica. The variety, Diamantes 10, has an ascendency fom the upper Amazon basin. We used Harries hematoxiline, eocine and standard light microscopy techniques. The presence of raphids and buliform cells was confirmed for the abaxial surface of the leaflets and for the hypodermic tissue on both sides. The absence of the Krantz anatomy was confirmed in consistence with former observations about the C3 photosynthesis in other species of Palmaceae. The average stomatal density on the abaxial surface was 96.87 +/- 16.31 stomata.mm(-2) and 14.20 +/- 4.05 in the adaxial surface.