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Low night temperature acclimation of Phalaenopsis

(2011) PLANT CELL REPORTS. 30(6). p.1125-1134
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Abstract
The capability of Phalaenopsis to acclimate its photosynthetic capacity and metabolic activity to cool night temperature conditions is crucial for improving orchid production in terms of efficient greenhouse heating. The extent to which Phalaenopsis possesses acclimation potential and the mechanistic background of the metabolic processes involved, have, however, not been studied before. Plants were subjected to a direct and gradual shift from a day to night temperature regime of 28/28-28/16A degrees C, the cold stress and cold acclimation treatment, respectively. In comparison with the cold stress treatment, the cold acclimation treatment led to a higher malate accumulation and a reduction in leaf net CO(2) uptake. Consistently, the contribution of respiratory CO(2) recycling to nocturnal malate synthesis was calculated to be 23.5 and 47.0% for the cold stress and cold acclimation treatment, respectively. Moreover, the lower levels of starch measured in the cold acclimated leaves confirmed the suggested enhanced respiratory CO(2) recycling, implying that Phalaenopsis CAM operation evolved towards CAM idling. It is, however, plausible that this adjustment was not an effect of the low night temperature per se but a consequence of cool-root induced drought stress. Apart from that, at the start of the photoperiod, membrane stability showed a depression which was directly counteracted by an increased generation of glucose, fructose and sucrose. From these observations, it can be concluded that the observed plasticity in CAM operation and metabolic flexibility may be recognized as important steps in the low night temperature acclimation of Phalaenopsis.
Keywords
Cold stress, Chilling, Crassulacean acid metabolism (CAM), Orchid, Oxidative stress, Respiratory CO(2) recycling, CRASSULACEAN ACID METABOLISM, PHOSPHOENOLPYRUVATE CARBOXYLASE, PHOTOSYNTHETIC EFFICIENCY, CHLOROPHYLL FLUORESCENCE, DAY/NIGHT TEMPERATURE, ENERGY-CONSUMPTION, GAS-EXCHANGE, CAM PLANT, LEAF AGE, CARBOHYDRATE

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Citation

Please use this url to cite or link to this publication:

MLA
Pollet, Bruno, Lynn Vanhaecke, Pieter Dambre, et al. “Low Night Temperature Acclimation of Phalaenopsis.” PLANT CELL REPORTS 30.6 (2011): 1125–1134. Print.
APA
Pollet, B., Vanhaecke, L., Dambre, P., Lootens, P., & Steppe, K. (2011). Low night temperature acclimation of Phalaenopsis. PLANT CELL REPORTS, 30(6), 1125–1134.
Chicago author-date
Pollet, Bruno, Lynn Vanhaecke, Pieter Dambre, Peter Lootens, and Kathy Steppe. 2011. “Low Night Temperature Acclimation of Phalaenopsis.” Plant Cell Reports 30 (6): 1125–1134.
Chicago author-date (all authors)
Pollet, Bruno, Lynn Vanhaecke, Pieter Dambre, Peter Lootens, and Kathy Steppe. 2011. “Low Night Temperature Acclimation of Phalaenopsis.” Plant Cell Reports 30 (6): 1125–1134.
Vancouver
1.
Pollet B, Vanhaecke L, Dambre P, Lootens P, Steppe K. Low night temperature acclimation of Phalaenopsis. PLANT CELL REPORTS. 2011;30(6):1125–34.
IEEE
[1]
B. Pollet, L. Vanhaecke, P. Dambre, P. Lootens, and K. Steppe, “Low night temperature acclimation of Phalaenopsis,” PLANT CELL REPORTS, vol. 30, no. 6, pp. 1125–1134, 2011.
@article{2915077,
  abstract     = {The capability of Phalaenopsis to acclimate its photosynthetic capacity and metabolic activity to cool night temperature conditions is crucial for improving orchid production in terms of efficient greenhouse heating. The extent to which Phalaenopsis possesses acclimation potential and the mechanistic background of the metabolic processes involved, have, however, not been studied before. Plants were subjected to a direct and gradual shift from a day to night temperature regime of 28/28-28/16A degrees C, the cold stress and cold acclimation treatment, respectively. In comparison with the cold stress treatment, the cold acclimation treatment led to a higher malate accumulation and a reduction in leaf net CO(2) uptake. Consistently, the contribution of respiratory CO(2) recycling to nocturnal malate synthesis was calculated to be 23.5 and 47.0% for the cold stress and cold acclimation treatment, respectively. Moreover, the lower levels of starch measured in the cold acclimated leaves confirmed the suggested enhanced respiratory CO(2) recycling, implying that Phalaenopsis CAM operation evolved towards CAM idling. It is, however, plausible that this adjustment was not an effect of the low night temperature per se but a consequence of cool-root induced drought stress. Apart from that, at the start of the photoperiod, membrane stability showed a depression which was directly counteracted by an increased generation of glucose, fructose and sucrose. From these observations, it can be concluded that the observed plasticity in CAM operation and metabolic flexibility may be recognized as important steps in the low night temperature acclimation of Phalaenopsis.},
  author       = {Pollet, Bruno and Vanhaecke, Lynn and Dambre, Pieter and Lootens, Peter and Steppe, Kathy},
  issn         = {0721-7714},
  journal      = {PLANT CELL REPORTS},
  keywords     = {Cold stress,Chilling,Crassulacean acid metabolism (CAM),Orchid,Oxidative stress,Respiratory CO(2) recycling,CRASSULACEAN ACID METABOLISM,PHOSPHOENOLPYRUVATE CARBOXYLASE,PHOTOSYNTHETIC EFFICIENCY,CHLOROPHYLL FLUORESCENCE,DAY/NIGHT TEMPERATURE,ENERGY-CONSUMPTION,GAS-EXCHANGE,CAM PLANT,LEAF AGE,CARBOHYDRATE},
  language     = {eng},
  number       = {6},
  pages        = {1125--1134},
  title        = {Low night temperature acclimation of Phalaenopsis},
  url          = {http://dx.doi.org/10.1007/s00299-011-1021-2},
  volume       = {30},
  year         = {2011},
}

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