Patterns of calcium oxalate crystals in young tropical leaves: a possible role as an anti-herbivory defense

Finley, David S

dc.creator	Finley, David S
dc.date	2015-05-04
dc.date.accessioned	2016-05-03T15:25:14Z
dc.date.available	2016-05-03T15:25:14Z
dc.identifier	http://revistas.ucr.ac.cr/index.php/rbt/article/view/18998
dc.identifier.uri	https://hdl.handle.net/10669/25587
dc.description	Calcium oxalate crystal formation and leaf toughness were measured and compared in five species, (Cyclanthus subpalmata, Pandanus leram, Crinum amabile, Heliconia longiflora and Guzmania zahnii) preselected for known leaf raphide production and toughness. Nine to eleven representative individuals from each species were randomly selected for the same microenvironment. The study was conducted in Las Cruces, Costa Rica. Leaves from each species were classified as two age classes: young and mature. Leaf crystal number was quantified by light microscopy. Leaf toughness was measured with a penetrometer. For all five species, the number of crystals was highest in young leaves and lowest in mature leaves. In addition, crystal formation was inversely related both to the leaf age class and to leaf toughness. It is proposed that crystal formation may be an alternative plant defense to toughness in young leaves.	en-US
dc.description	Se comparó cristales de oxalato de calcio y la dureza de la hoja en cinco especies, (Cyclanthus subpalmata, Pandanus leram, Crinum amabile, Heliconia longiflora, y Guzmania zahnii), pre-seleccionadas por tener ráfidos, clasificando las hojas como jóvenes y viejas. Se contó los cristales por microscopía de luz. La dureza de la hoja fue medida con un penetrómetro. En todas los especies, la cantidad de cristal fue mayor en hojas jóvenes y la formación estuvo inversamente relacionada con edad y dureza de la hoja. La formación de cristales puede ser una defensa alternativa a la dureza de las hojas jóvenes.	es-ES
dc.format	application/pdf
dc.language	eng
dc.publisher	Universidad de Costa Rica	en-US
dc.rights	Copyright (c) 2015 International Journal of Tropical Biology and Conservation	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 47 (1-2) March 1999; 27-31	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 47 (1-2) March 1999; 27-31	es-ES
dc.source	Revista Biología Tropical; Vol. 47 (1-2) March 1999; 27-31	pt-PT
dc.source	2215-2075
dc.source	0034-7744
dc.subject	calcium oxalate	en-US
dc.subject	raphide	en-US
dc.subject	crystal	en-US
dc.subject	toughness	en-US
dc.title	Patterns of calcium oxalate crystals in young tropical leaves: a possible role as an anti-herbivory defense	en-US
dc.title	Patterns of calcium oxalate crystals in young tropical leaves: a possible role as an anti-herbivory defense	es-ES
dc.type	artículo original

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