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Stomatal behavior in fruits and leaves of the purple passion fruit(passiflora edulis sims) and fruits and cladodes of the yellow pitaya[hylocereus megalanthus (k. schum. ex vaupel) ralf bauer]

Sanchez, Camilo and Fischer, Gerhard and Sanjuanelo, Danny Wilson (2013) Stomatal behavior in fruits and leaves of the purple passion fruit(passiflora edulis sims) and fruits and cladodes of the yellow pitaya[hylocereus megalanthus (k. schum. ex vaupel) ralf bauer]. Agronomía Colombiana; Vol. 31, núm. 1 (2013); 38-47 Agronomía Colombiana; Vol. 31, núm. 1 (2013); 38-47 2357-3732 0120-9965 .

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URL oficial: http://revistas.unal.edu.co/index.php/agrocol/arti...

Resumen

Plants as C3 and CAM react photosynthetically different but both can grow in the same agroecological zone in the tropics. Therefore we studied the behavior of stomatal opening in fruits and leaves of the purple passion fruit and fruits and cladodes of the yellow pitaya was studied under natural growing conditions in Granada and Fusagasuga, Cundinamarca (Colombia). Imprints were made on the surface of leaves, fruits and cladodes using cosmetic enamel impressions. Three cycles were carried out, each cycle took 72 hours, obtaining three different samples every 3 hours; then the impressions were observed by micro- scope and the opened and closed stomata were counted in each species. In each sampling, data of solar radiation, temperature and relative humidity (RH) were measured. The purple passion fruit had the typical behavior of a C3 plant in the leaves as well as the fruits, and a positive correlation between the stomatal aperture and radiation and temperature was found, along with a negative correlation between stomatal aperture and RH. The pitaya showed the typical behavior of a CAM plant with a negative correlation between the stomatal opening and radiation and temperature, as well as a positive correlation between stomatal opening and RH. Radiation, temperature and RH affected the stomatal opening in the fruits and cladodes. Stomatal densities differed greatly between the species and plant organs. In the purple passion fruit, 106.53 stomata per mm2 leaf surface were found, but only 12.64 stomata per mm2 fruit surface; whereas in the pitaya, 11.28 and 1.43 stomata per mm2  were found on the cladodes and fruits, respectively.

Tipo de documento:Artículo - Article
Información adicional:© Facultad de Agronomía, Universidad Nacional de Colombia Se autoriza la reproducción y citación del material que aparece en la revista, siempre y cuando se indique de manera explícita: nombre de la revista, nombre del autor(es), año, volumen, número y páginas del artículo fuente. Las ideas y afirmaciones consignadas por los autores están bajo su responsabilidad y no interpretan necesariamente las opiniones y políticas de la Universidad Nacional de Colombia. La mención de productos o firmas comerciales en la revista no implica una recomendación o apoyo por parte de la Universidad ni de la Facultad; el uso de tales productos debe ceñirse a las recomendaciones de las etiquetas.
Palabras clave:tropical fruits, stomata, stomatal aperture, stomatal density., tropical fruits, C3 plants, CAM plants, stomata, stomatal movement.
Unidad administrativa:Revistas electrónicas UN > Agronomía Colombiana
Código ID:35465
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :01 Julio 2014 21:28
Ultima modificación:18 Agosto 2014 21:08
Ultima modificación:18 Agosto 2014 21:08
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