Temperature and Light Intensity Induce Morphological and Anatomical Changes of Leaf Petiole and Lamina in Cyclamen persicum

Title
Temperature and Light Intensity Induce Morphological and Anatomical Changes of Leaf Petiole and Lamina in Cyclamen persicum
Author(s)
오욱김기선[김기선]
Keywords
GIBBERELLIN CONTENT; STOMATAL DENSITY; FICUS-BENJAMINA; LOW IRRADIANCE; DWARF WHEAT; CELL-SIZE; SHADE; GROWTH; SUN; ACCLIMATION
Issue Date
201012
Publisher
KOREAN SOC HORTICULTURAL SCIENCE
Citation
HORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY, v.51, no.6, pp.494 - 500
Abstract
We report here the petiole elongation pattern and the morphological and anatomical changes of cyclamen leaf under different temperatures and light intensities to determine the cause of quality deterioration by over-expended petiole and leaf. 'Metis Scarlet Red' cyclamen plants with 5 fully unfolded leaves were grown under in three controlled environment chambers maintained at 16/12 (LT), 22/18 (MT), 28/24 degrees C (HT) (day/night), respectively, in each chamber, there were growth modules which provided three photosynthetic photon fluxes [PPF; 60 (LL), 120 (ML), 240 (HL) mu mol.m(-2).s(-1)] at canopy height with 16 h (08:00-24:00) of photoperiod by fluorescent lamps. LL and HT promoted petiole elongation and leaf expansion mainly by cell elongation. The plants grown at HT had longer petioles even at relatively high PPF than those exposed to LT. Leaves at LL were larger and thinner in cross section than those at HL. Leaves at HL had long and well-developed palisade layers, whereas those at LL had only one short and poorly developed palisade layer. LL decreased stomatal density and number epidermal cells per unit area compared with HL.
URI
http://hdl.handle.net/YU.REPOSITORY/23260
ISSN
0253-6498
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자연자원대학 > 원예생명과학과 > Articles
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