✦ LIBER ✦

Temperature dependence of the permeability of chloroplasts from chilling-sensitive and chilling-resistant plants

✍ Scribed by Park S. Nobel

Publisher: Springer-Verlag
Year: 1974
Tongue: English
Weight: 259 KB
Volume: 115
Category: Article
ISSN: 0032-0935
DOI: 10.1007/bf00388619

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✦ Synopsis

Osmotic responses of chloroplasts from chilling-resistant (Pisum sativum L., Spinacia oleracea L.) and chilling-sensitive ( Phaseolus vulgaris L., Lycopersicon esculentum Mill.) plants to glycerol and erythritol were determined from 1 ~ to 28 ~ The permeability of the chloroplast limiting membranes, as measured by reflection coefficients, decreased when the temperature was raised. ]~or Pisum and Spinacia the curves relating reflection coefficients and temperature were smooth, while for Phaseolus and Lycopersicon breaks occurred near 11 ~ The break may indicate a phase transition in the membranes, the change leading to a higher chloroplast permeability at lower temperatures for chilling-sensitive plants.

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