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Title: Stomatal limitation to carbon gain in Paphiopedilum sp. (Orchidaceae) and its reversal by blue light

Abstract

Leaves from Paphiopedilum sp. (Orchidaceae) having achlorophyllous stomata, show reduced levels of stomatal conductance when irradiated with red light, as compared with either the related, chlorophyllous genus Phragmipedium or with their response to blue light. These reduced levels of stomatal conductance, and the failure of isolated Paphiopedilum stomata to open under red irradiation indicates that the small stomatal response measured in the intact leaf under red light is indirect. The overall low levels of stomatal conductance observed in Paphiopedilum leaves under most growing conditions and their capacity to increase stomatal conductance in response to blue light suggested that growth and carbon gain in Paphiopedilum could be enhanced in a blue light-enriched environment. To test that hypothesis, plants of Paphiopedilum acmodontum were grown in controlled growth chambers under daylight fluorescent light, with or without blue light supplementation. Blue light enrichment resulted in significantly higher growth rates over a 3 to 4 week growing period, with all evidence indicating that the blue light effect was a stomatal response. Manipulations of stomatal properties aimed at long-term carbon gains could have agronomic applications.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Stanford Univ., CA (United States)
OSTI Identifier:
5886056
Resource Type:
Journal Article
Journal Name:
Plant Physiol.; (United States)
Additional Journal Information:
Journal Volume: 77:2
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; STOMATA; PHYSIOLOGY; CARBON DIOXIDE; CHLOROPLASTS; FLOWERS; LEAVES; PHOTOSYNTHESIS; PLANTS; VISIBLE RADIATION; CARBON COMPOUNDS; CARBON OXIDES; CELL CONSTITUENTS; CHALCOGENIDES; CHEMICAL REACTIONS; ELECTROMAGNETIC RADIATION; OPENINGS; OXIDES; OXYGEN COMPOUNDS; PHOTOCHEMICAL REACTIONS; RADIATIONS; SYNTHESIS; 551000* - Physiological Systems

Citation Formats

Zeiger, E, Grivet, C, Assmann, S M, Dietzer, G F, and Hannegan, M W. Stomatal limitation to carbon gain in Paphiopedilum sp. (Orchidaceae) and its reversal by blue light. United States: N. p., 1985. Web. doi:10.1104/pp.77.2.456.
Zeiger, E, Grivet, C, Assmann, S M, Dietzer, G F, & Hannegan, M W. Stomatal limitation to carbon gain in Paphiopedilum sp. (Orchidaceae) and its reversal by blue light. United States. https://doi.org/10.1104/pp.77.2.456
Zeiger, E, Grivet, C, Assmann, S M, Dietzer, G F, and Hannegan, M W. 1985. "Stomatal limitation to carbon gain in Paphiopedilum sp. (Orchidaceae) and its reversal by blue light". United States. https://doi.org/10.1104/pp.77.2.456.
@article{osti_5886056,
title = {Stomatal limitation to carbon gain in Paphiopedilum sp. (Orchidaceae) and its reversal by blue light},
author = {Zeiger, E and Grivet, C and Assmann, S M and Dietzer, G F and Hannegan, M W},
abstractNote = {Leaves from Paphiopedilum sp. (Orchidaceae) having achlorophyllous stomata, show reduced levels of stomatal conductance when irradiated with red light, as compared with either the related, chlorophyllous genus Phragmipedium or with their response to blue light. These reduced levels of stomatal conductance, and the failure of isolated Paphiopedilum stomata to open under red irradiation indicates that the small stomatal response measured in the intact leaf under red light is indirect. The overall low levels of stomatal conductance observed in Paphiopedilum leaves under most growing conditions and their capacity to increase stomatal conductance in response to blue light suggested that growth and carbon gain in Paphiopedilum could be enhanced in a blue light-enriched environment. To test that hypothesis, plants of Paphiopedilum acmodontum were grown in controlled growth chambers under daylight fluorescent light, with or without blue light supplementation. Blue light enrichment resulted in significantly higher growth rates over a 3 to 4 week growing period, with all evidence indicating that the blue light effect was a stomatal response. Manipulations of stomatal properties aimed at long-term carbon gains could have agronomic applications.},
doi = {10.1104/pp.77.2.456},
url = {https://www.osti.gov/biblio/5886056}, journal = {Plant Physiol.; (United States)},
number = ,
volume = 77:2,
place = {United States},
year = {Fri Feb 01 00:00:00 EST 1985},
month = {Fri Feb 01 00:00:00 EST 1985}
}