From Cell to Ecosystem
Hans Lambers and Miquel Ribas-Carbo
Plant Respiration: From Cell to Ecosystem. Respiration in
plants, as in all living organisms, is essential to provide metabolic energy
and carbon skeletons for growth and maintenance. As such, respiration is an essential
component of a plant’s carbon budget. Depending on species and environmental
conditions, it consumes 25-75% of all the carbohydrates produced in photosynthesis – even
more at extremely slow growth rates. Respiration in plants can also proceed in
a manner that produces neither metabolic energy nor carbon skeletons, but heat.
This type of respiration involves the cyanide-resistant, alternative oxidase;
it is unique to plants, and resides in the mitochondria. The activity of this
alternative pathway can be measured based on a difference in fractionation of
oxygen isotopes between the cytochrome and the alternative oxidase. Heat production
is important in some flowers to attract pollinators; however, the alternative
oxidase also plays a major role in leaves and roots of most plants. A common
thread throughout this volume is to link respiration, including alternative oxidase
activity, to plant functioning in different environments.
Postgraduate and postdoctoral researchers working on plant respiration and university staff teaching plant biology
Editorial. Preface. Color Plates.
Regulation of Respiration In Vivo.
Calorespirometry in Plant Biology.
The Application of the Oxygen-Isotope Technique to Assess Respiratory Pathway Partitioning.
Respiration in Photosynthetic Cells: Gas Exchange Components, Interactions with Photorespiration and the Operation of Mitochondria in the Light.
Effects of Light Intensity and Carbohydrate Status on Leaf and Root Respiration.
The Effects of Water Stress on Plant Respiration.
Response of Plant Respiration to Changes in Temperature: Mechanisms and Consequences of Variations in Q10 Values and Acclimation.
Oxygen Transport, Respiration, and Anaerobic Carbohydrate Catabolism in Roots in Flooded Soils.
Effects of Soil pH and Aluminum on Plant Respiration.
Understanding Plant Respiration: Separating Respiratory Components versus a Process-Based Approach.
Respiratory/Carbon Costs of Symbiotic Nitrogen Fixation in Legumes. Respiratory Costs of Mycorrhizal Associations.
Integrated Effects of Atmospheric CO2 Concentration on Plant and Ecosystem Respiration.
Arizona State University
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06 February 2006
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