منابع مشابه
Studies on Freezing Injury of Plant Cells: I. Relation between Thermotropic Properties of Isolated Plasma Membrane Vesicles and Freezing Injury.
The thermotropic transition of plasma membrane of Dactylis glomerata was studied by using fluorescence polarization of embedded fluorophore, 1,6-diphenyl-1,3,5-hexatriene. Under the presence of 35% ethylene glycol, reversible thermotropic transitions were observed in isolated plasma membrane vesicles in nearly the same temperature range as the temperature of freezing injury to cells. In liposom...
متن کاملStudies on Freezing Injury in Plant Cells : II. Protein and Lipid Changes in the Plasma Membranes of Jerusalem Artichoke Tubers during a Lethal Freezing in Vivo.
Plasma membranes were isolated from both unfrozen and frozen tissues of Jerusalem artichoke tubers (Helianthus tuberosus L.) in high purity utilizing an aqueous two-polymer phase partition system. Although the recovery of the plasma membranes was decreased significantly by freezing of tissues even at the nonlethal temperature (-5 degrees C), the isolated plasma membrane samples were considered ...
متن کاملMechanism of Protection by Nonpenetrating and Nontoxic Solutes against Freezing Injury to Plant Cells.
Both the existence and the cause of protection, by nonpenetrating solutes such as sugars, against freezing injury to plant cells have been alternatively and repeatedly proclaimed and questioned for some time. Since theories of the mechanism of frost injury have been both rejected (8) and proposed (2, 3) on the basis of this protection, it is of fundamental importance to understand the reasons f...
متن کاملFreezing Injury and Phospholipid Degradation in Vivo in Woody Plant Cells: III. Effects of Freezing on Activity of Membrane-bound Phospholipase D in Microsome-enriched Membranes.
Freeze-thawing of microsome-enriched membranes from living bark tissues of black locust trees, especially those from less hardy tissues, caused a drastic increase in sensitivity to Ca(2+) and a complete loss of the regulatory action of Mg(2+) in membrane-bound phospholipase D activity with endogenous (membrane-bound) substrates. Also, the freeze-thaw cycle made phospholipase D in these membrane...
متن کاملStudies on Plant Hypertensinase
Many plants contain an enzyme similar in most biological properties to the hypertensinase obtained from blood and some animal tissues, notably kidney and intestinal mucosa. Wheat bran is a rich source of the plant hypertensinase, and from it a potent, non-toxic preparation was made by the use of isoelectric and ammonium sulfate precipitation as the means of purification. Hypertensinase derived ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Physiology
سال: 1984
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.75.1.38