Ghent University Academic Bibliography

Advanced

Long-term effects of red- and blue-light emitting diodes on leaf anatomy and photosynthetic efficiency of three ornamental pot plants

Liang Zheng UGent and Marie-Christine Van Labeke UGent (2017) FRONTIERS IN PLANT SCIENCE. 8.
abstract
Light quality critically affects plant development and growth. Development of light-emitting diodes (LEDs) enables the use of narrow band red and/or blue wavelengths as supplementary lighting in ornamental production. Yet, long periods under these wavelengths will affect leaf morphology and physiology. Leaf anatomy, stomatal traits, and stomatal conductance, leaf hydraulic conductance (K-leaf), and photosynthetic efficiency were investigated in three ornamental pot plants, namely Cordyline australis (monocot), Ficus benjamina (dicot, evergreen leaves), and Sinningia speciosa (dicot, deciduous leaves) after 8 weeks under LED light. Four light treatments were applied at 100 mu mol m(-2) s(-1) and a photoperiod of 16 h using 100% red (R), 100% blue (B), 75% red with 25% blue (RB), and full spectrum white light (W), respectively. B and RB resulted in a greater maximum quantum yield (F-v/F-m) and quantum efficiency (Phi(PSII)) in all species compared to R and W and this correlated with a lower biomass under R. B increased the stomata' conductance compared with R. This increase was linked to an increasing stomatal index and/or stomatal density but the stomata' aperture area was unaffected by the applied light quality. Leaf hydraulic conductance (K-leaf) was not significantly affected by the applied light qualities. Blue light increased the leaf thickness of F benjarnina, and a relative higher increase in palisade parenchyma was observed. Also in S. speciosa, increase in palisade parenchyma was found under B and RB, though total leaf thickness was not affected. Palisade parenchyma tissue thickness was correlated to the leaf photosynthetic quantum efficiency (Phi(PSII)). In conclusion, the role of blue light addition in the spectrum is essential for the normal anatomical leaf development which also impacts the photosynthetic efficiency in the three studied species.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
leaf anatomy, leaf hydraulic conductance, chlorophyll fluorescence, stomatal conductance, Ficus benjamina, Sinningia speciosa, Cordyline australis, HYDRAULIC CONDUCTANCE, CHLOROPHYLL-FLUORESCENCE, IN-VITRO, STOMATAL DEVELOPMENT, WATER TRANSPORT, LEAVES, QUALITY, GROWTH, INTENSITY, IRRADIANCE
journal title
FRONTIERS IN PLANT SCIENCE
Front. Plant Sci.
volume
8
article number
917
pages
12 pages
Web of Science type
Article
Web of Science id
000402257300001
ISSN
1664-462X
DOI
10.3389/fpls.2017.00917
language
English
UGent publication?
yes
classification
A1
copyright statement
I have retained and own the full copyright for this publication
id
8529671
handle
http://hdl.handle.net/1854/LU-8529671
date created
2017-08-26 09:14:25
date last changed
2017-10-12 09:22:30
@article{8529671,
  abstract     = {Light quality critically affects plant development and growth. Development of light-emitting diodes (LEDs) enables the use of narrow band red and/or blue wavelengths as supplementary lighting in ornamental production. Yet, long periods under these wavelengths will affect leaf morphology and physiology. Leaf anatomy, stomatal traits, and stomatal conductance, leaf hydraulic conductance (K-leaf), and photosynthetic efficiency were investigated in three ornamental pot plants, namely Cordyline australis (monocot), Ficus benjamina (dicot, evergreen leaves), and Sinningia speciosa (dicot, deciduous leaves) after 8 weeks under LED light. Four light treatments were applied at 100 mu mol m(-2) s(-1) and a photoperiod of 16 h using 100\% red (R), 100\% blue (B), 75\% red with 25\% blue (RB), and full spectrum white light (W), respectively. B and RB resulted in a greater maximum quantum yield (F-v/F-m) and quantum efficiency (Phi(PSII)) in all species compared to R and W and this correlated with a lower biomass under R. B increased the stomata' conductance compared with R. This increase was linked to an increasing stomatal index and/or stomatal density but the stomata' aperture area was unaffected by the applied light quality. Leaf hydraulic conductance (K-leaf) was not significantly affected by the applied light qualities. Blue light increased the leaf thickness of F benjarnina, and a relative higher increase in palisade parenchyma was observed. Also in S. speciosa, increase in palisade parenchyma was found under B and RB, though total leaf thickness was not affected. Palisade parenchyma tissue thickness was correlated to the leaf photosynthetic quantum efficiency (Phi(PSII)). In conclusion, the role of blue light addition in the spectrum is essential for the normal anatomical leaf development which also impacts the photosynthetic efficiency in the three studied species.},
  articleno    = {917},
  author       = {Zheng, Liang and Van Labeke, Marie-Christine},
  issn         = {1664-462X},
  journal      = {FRONTIERS IN PLANT SCIENCE},
  keyword      = {leaf anatomy,leaf hydraulic conductance,chlorophyll fluorescence,stomatal conductance,Ficus benjamina,Sinningia speciosa,Cordyline australis,HYDRAULIC CONDUCTANCE,CHLOROPHYLL-FLUORESCENCE,IN-VITRO,STOMATAL DEVELOPMENT,WATER TRANSPORT,LEAVES,QUALITY,GROWTH,INTENSITY,IRRADIANCE},
  language     = {eng},
  pages        = {12},
  title        = {Long-term effects of red- and blue-light emitting diodes on leaf anatomy and photosynthetic efficiency of three ornamental pot plants},
  url          = {http://dx.doi.org/10.3389/fpls.2017.00917},
  volume       = {8},
  year         = {2017},
}

Chicago
Zheng, Liang, and Marie-Christine Van Labeke. 2017. “Long-term Effects of Red- and Blue-light Emitting Diodes on Leaf Anatomy and Photosynthetic Efficiency of Three Ornamental Pot Plants.” Frontiers in Plant Science 8.
APA
Zheng, L., & Van Labeke, M.-C. (2017). Long-term effects of red- and blue-light emitting diodes on leaf anatomy and photosynthetic efficiency of three ornamental pot plants. FRONTIERS IN PLANT SCIENCE, 8.
Vancouver
1.
Zheng L, Van Labeke M-C. Long-term effects of red- and blue-light emitting diodes on leaf anatomy and photosynthetic efficiency of three ornamental pot plants. FRONTIERS IN PLANT SCIENCE. 2017;8.
MLA
Zheng, Liang, and Marie-Christine Van Labeke. “Long-term Effects of Red- and Blue-light Emitting Diodes on Leaf Anatomy and Photosynthetic Efficiency of Three Ornamental Pot Plants.” FRONTIERS IN PLANT SCIENCE 8 (2017): n. pag. Print.