Stomata length is a reliable characteristic for distinguishing infraspecies and ploidy levels of Opuntia mesacantha (Cactaceae)
DOI:
https://doi.org/10.17348/jbrit.v12.i1.925Palabras clave:
cactus, field techniques, polyploidy, prickly pearResumen
Opuntia mesacantha incluye dos subespecies, O. mesacantha subsp. mesacantha (tetraploide) y O. mesacantha subsp. lata (diploide), que son difíciles de distinguir en el campo. Nosotros señalamos (1) la longitud de los estomas es efectiva para distinguir las dos subespecies, y (2) esto puede asegurarse visualmente, es efectivo y no-destructivo, usando un microscopio con un retículo (ocular). Comparamos nuestros resultados con los imagen digital y recuentos cromosomáticos en mitosis ápices radiculares para confirmar que nuestro sistema es efectivo para estos taxa.
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