NDLI: Cryoprotection by glucose, sucrose, and raffinose to chloroplast thylakoids.

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Cryoprotection by glucose, sucrose, and raffinose to chloroplast thylakoids.

Content Provider	Semantic Scholar
Author	Lineberger, R. D.
Copyright Year	1980
Abstract	Differential cryoprotection is afforded to chloroplast thylakoids against freeze-induced uncoupling of cyclic photophosphorylation by equimolar concentrations of glucose, sucrose, and raffinose. This differential protective effect appears to be due to nonideal activity-concentration profiles exhibited by the sugars during freezing. When cryoprotection is analyzed as a function of the mole fraction of NaCl to which the membranes are exposed during freezing, the pattern of protection to cyclic photophosphorylation and its component reactions is not dependent upon the chemical identity of the protective solute. Cryoprotective efficiency of glucose, sucrose, and raffinose can be accounted for by proposing an activity dependent alteration in the freezing environment rather than specific solute-membrane interactions.
Starting Page	298
Ending Page	304
Page Count	7
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.plantphysiol.org/content/plantphysiol/65/2/298.full.pdf
PubMed reference number	16661177v1
Volume Number	65
Issue Number	2
Journal	Plant physiology
Language	English
Access Restriction	Open
Subject Keyword	Chloroplast Proton-Translocating ATPases Chloroplast thylakoids Chloroplasts Cyclic AMP Freezing Glucose Nevus Photophosphorylation Raffinose Sodium Chloride Sucrose Sugars Tissue membrane solute
Content Type	Text
Resource Type	Article

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