scholarly journals Xyloglucan Galactosyl- and Fucosyltransferase Activities from Pea Epicotyl Microsomes

1997 ◽  
Vol 114 (1) ◽  
pp. 245-254 ◽  
Author(s):  
A. Faik ◽  
C. Chileshe ◽  
J. Sterling ◽  
G. Maclachlan
Keyword(s):  
Pea Epicotyl

Purification par séparation de phase et caractérisation du plasmalemme de l'épicotyle de pois

1986 ◽  
Vol 64 (5) ◽  
pp. 448-455 ◽  
Author(s):  
Jacques Rembur ◽  
Pierre Landré ◽  
Arlette Nougarède
Keyword(s):  
Atpase Activity ◽  
Plasma Membranes ◽  
Microsomal Fraction ◽  
Alkaline Ph ◽  
Phase Partition ◽  
Pea Epicotyl ◽  
Glucan Synthetase ◽  
Triton X ◽  
Two Sides ◽  
Slight Contamination

The validity of phase partition to obtain a substantial proportion of vesicles of plasmalemma origin from the microsomal fraction of pea epicotyl has been demonstrated. In the fractions enriched with plasma membranes, N-naphthyl phtalamic acid binding and β-glucan synthetase II activity, showed a yield of about 60% and an enrichment of 2.3 and 2.2, respectively, in comparison with the microsomal fraction. When such plasmalemmic vesicles are permabilized by Triton X-100, an intense Mg2+-ATPase activity is obtained in presence of K+ at acid as well as alkaline pH. Inhibition of Mg2+-ATPase by vanadate in presence of K+ and its variations in relation to pH were shown. Dicyclohexylcarbodiimide and diethylstilbestrol inhibit 40–55% of this enzymatic activity, both at acid and neutral pH. The data show a slight contamination of the plasmalemmic fraction by endomembranes and suggest an asymmetry of the two sides of the plasmalemma.

INTERACTION OF SUGARS AND AUXINS IN PEA EPICOTYL SECTION GROWTH

1960 ◽  
Vol 47 (8) ◽  
pp. 665-669 ◽  
Author(s):  
W. K. Purves ◽  
A. W. Galston
Keyword(s):  
Pea Epicotyl

Water relations of growing pea epicotyl segments

Planta ◽  
1981 ◽  
Vol 153 (4) ◽  
pp. 343-350 ◽  
Author(s):  
Daniel Cosgrove ◽  
Ernst Steudle
Keyword(s):  
Water Relations ◽  
Pea Epicotyl
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