The Epiphytic Fern Elaphoglossum luridum (Fée) Christ. (Dryopteridaceae) from Central and South America: Morphological and Physiological Responses to Water Stress
Joint Authors
Santos, Marisa
Minardi, Bruno Degaspari
Voytena, Ana Paula Lorenzen
Randi, Áurea Maria
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-20
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Elaphoglossum luridum (Fée) Christ.
(Dryopteridaceae) is an epiphytic fern of the Atlantic Forest (Brazil).
Anatomical and physiological studies were conducted to understand how this plant responds to water stress.
The E.
luridum frond is coriaceus and succulent, presenting trichomes, relatively thick cuticle, and sinuous cell walls in both abaxial and adaxial epidermis.
Three treatments were analyzed: control, water deficit, and abscisic acid (ABA).
Physiological studies were conducted through analysis of relative water content (RWC), photosynthetic pigments, chlorophyll a fluorescence, and malate content.
No changes in RWC were observed among treatments; however, significant decreases in chlorophyll a content and photosynthetic parameters, including optimal irradiance (Iopt) and maximum electron transport rate (ETRmax), were determined by rapid light curves (RLC).
No evidence of crassulacean acid metabolism (CAM) pathway was observed in E.
luridum in response to either water deficit or exogenous application of ABA.
On the other hand, malate content decreased in the E.
luridum frond after ABA treatment, seeming to downregulate malate metabolism at night, possibly through tricarboxylic acid (TCA) cycle regulation.
American Psychological Association (APA)
Minardi, Bruno Degaspari& Voytena, Ana Paula Lorenzen& Santos, Marisa& Randi, Áurea Maria. 2014. The Epiphytic Fern Elaphoglossum luridum (Fée) Christ. (Dryopteridaceae) from Central and South America: Morphological and Physiological Responses to Water Stress. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1051181
Modern Language Association (MLA)
Minardi, Bruno Degaspari…[et al.]. The Epiphytic Fern Elaphoglossum luridum (Fée) Christ. (Dryopteridaceae) from Central and South America: Morphological and Physiological Responses to Water Stress. The Scientific World Journal No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1051181
American Medical Association (AMA)
Minardi, Bruno Degaspari& Voytena, Ana Paula Lorenzen& Santos, Marisa& Randi, Áurea Maria. The Epiphytic Fern Elaphoglossum luridum (Fée) Christ. (Dryopteridaceae) from Central and South America: Morphological and Physiological Responses to Water Stress. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1051181
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051181