Plant calorimetry. Part 2. Modeling the differences between apples and oranges

Hansen, Lee D.; Hopkin, Mark S.; Taylor, D. K.; Anekonda, Thimmappa S.; Rank, David R.; Breidenbach, R. W.; Criddle, Richard S.

doi:10.1016/0040-6031(94)02006-a

Cited by 34 publications

(10 citation statements)

References 26 publications

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“…Wound respiration is negligible in such tissues (Criddle, Breidenbauch et al 1996). The respiration parameters measured or calculated were metabolic heat rate ( q •, μW mg –1 ), CO 2 production rate ( R CO2 , pmol mg –1 s –1 ), the amount of heat lost per mole of CO 2 formed ( q •/ R CO2 ), the temperature coefficient of metabolic heat rate ( μ q , kiloKelvin) and the calculated specific growth rate ( R SG , pmol C mg –1 s –1 ) (Criddle, Breidenbach & Hansen 1991; Criddle, Fontana et al 1991; Criddle et al 1994; Hansen et al 1994, 1995). R CO2 and q • were measured at 25 °C with an additional q • value measured at 15 °C.…”

Section: Methodsmentioning

confidence: 99%

Contrasting adaptation of twoEucalyptussubgenera is related to differences in respiratory metabolism

et al. 1999

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Summary 1.The largest eucalypt subgenus Symphyomyrtus survives and grows better in diverse native and exotic environments than the second largest subgenus Monocalyptus. Previously postulated reasons for this difference, including differential resistance to native insect pests and dependence on specific ectomycorrhizal symbiotic associations with soil fungi, do not fully explain the marked adaptive differentiation. 2. This work shows that differences between the subgenera in survival and growth performance are related to respiratory parameters. We propose that effects of climatic temperature on respiratory metabolism result in Symphyomyrtus being more successful than Monocalyptus in adapting to diverse environments. This suggests a new paradigm for adaptation and evolution of eucalypts.

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Section: Methodsmentioning

confidence: 99%

Contrasting adaptation of twoEucalyptussubgenera is related to differences in respiratory metabolism

et al. 1999

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“…Over the past few years we have developed microcalorimetric techniques to rapidly measure dark respiration CO 2 and heat rates in plant tissues as a function of temperature (Criddle et al 1991;Hansen et al 1994b;Fontana et al 1995). Furthermore, we have developed mechanistic equations relating these metabolic rate measurements to plant growth rate and carbon conversion efficiency (Hansen et al 1994c).…”

Section: Introductionmentioning

confidence: 99%

A respiration based description of plant growth rate responses to temperature

Criddle

Smith

Hansen

1997

Planta

150

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The temperature dependence of metabolic rates determines how plant growth rates vary with temperature. This paper shows that equations on physiological relations between respiration rates (i.e. rates of heat loss and CO 2 evolution) and growth rates can be used to describe temperature effects on plant growth rate. Incorporating measured values of plant respiratory heat and CO 2 rates at a few temperatures into the equations allows description of growth rates as a function of temperature and provides a physiological basis for understanding the effects of temperature on growth rate. The paper presents data on cabbage (Brassica oleracea L. Capitata) and tomato (Lycopersicon esculentum Miller cv. Ace) as model cool-climate and warm-climate cultivars to illustrate application of the methods in determining optimal growth climates for different cultivars, accessions, and ecotypes. The respiration-based calculations of growth rate vs. temperature yield curves for both species that are consistent with known temperature-growth requirements. We conclude that plant responses to temperature can be accurately predicted in detail from respiration rate measurements and the growth-respiration model. These studies demonstrate that the temperature dependence of growth rates is a function of the temperature dependencies of both metabolic rates and metabolic efficiency, which change continuously with temperature. The ultimate cause of high-and low-temperature growth limits is commonly not membrane phase transitions or enzyme denaturation as has been supposed, but is loss of substrate carbon conversion efficiency. The results show that ''plant temperature stress'' has been misunderstood and must be redefined because there is no ''nonstressfull temperature''.Abbreviations and symbols: R CO2 = rate of CO 2 production; R sq = specific mass-growth rate; q = metallic heat rate (rate of energy loss; p = mean chemical oxidation state of the substrate carbon; ∆H B = enthalpy change for the formation of biomass from photosynthat and minerals; = substrate carbon conversion efficiency Correspondence to: B.N. Smith;

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“…The bottom part of the unit contains the amplifier, the data logger and power supplies (7). combination of calorimetry and respiration measurements to study aging potato slices. Such techniques are further discussed by Hansen and co-workers (Hansen, Hopkin, & Criddle, 1997;Hansen, MacFarlane, McKinnon, Smith, & Criddle, 2004;Hansen et al, 1995).…”

Section: Wound Respirationmentioning

confidence: 94%

Isothermal calorimetry for biological applications in food science and technology

Wadsö

Galindo

2009

Food Control

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a b s t r a c tAll physical, chemical and biological processes produce heat and isothermal calorimetry is a general measurement technique to study all kinds of processes by the heat they produce. This paper gives several examples of studies of biological processes in the food area using isothermal calorimetry. It is for example shown how different unit operations influence respiration of vegetable tissue, how the kinetics of a fermentation process can be studied, and how spoilage processes can be followed for shelf-life determinations.

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Plant calorimetry. Part 2. Modeling the differences between apples and oranges

Cited by 34 publications

References 26 publications

Contrasting adaptation of twoEucalyptussubgenera is related to differences in respiratory metabolism

Contrasting adaptation of twoEucalyptussubgenera is related to differences in respiratory metabolism

A respiration based description of plant growth rate responses to temperature

Isothermal calorimetry for biological applications in food science and technology

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