ISSN:
1432-2048
Keywords:
Calorimetry
;
Cell culture (temperature responses)
;
Lysopersicon (temperature responses)
;
Temperature response and stress
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Precise time and temperature dependences of the decrease of metabolism of cultured cells of tomato (Lysopersicon esculentum (L.) Mill. L. peruvianum (L.) Mill.) resulting from exposures to high and low temperatures were determined. Equations of the form Ln (activity)= C +1 [A+(T-Tm)N+B] describe thermal inactivation and allow prediction of activity loss following any thermal excursion beyond limits of temperature stability. The experimental parameters A, B, C and N derived from these equations allow precise comparison of temperature sensitivities of cells. Analysis of metabolic heat rates, O2-consumption rates and CO2-evolution rates demonstrated simultaneous shifts in metabolic pathways and metabolic activities towards more anaerobic metabolism below about 12° C and at high temperatures that stress growth of tomato cells.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00202969
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