منابع مشابه
Submicroscopic Morphology of Protoplasm
SUBMICROSCOPIC MORPHOLOGY OF PROTOPLASM. By A. Frey-Wyssling. 2d English Ed. Houston, Elsevier, 1953. 411 pp., 181 figs. $8.00. This is really the third edition of Frey-Wyssling's famous monograph, for the first English edition (1948) was actually a revision of the original German edition (1938). Following an orienting introduction, the book is divided, as in previous editions, into three parts...
متن کاملThe Effect of Bacteriophagy Upon Protoplasm (Paramecium) *
Paramecia have been used as experimental animals in many fields of biology, including bacteriology and immunology. The use of protozoa to reveal protoplasmic response has many advantages, not the least of which is the ease with which they may be cultivated in large numbers and subjected to study. They react admirably to physical and chemical changes in their environment. They can be observed mi...
متن کاملSome Protein Properties of Plant Protoplasm.*
IN attempting to explain the reactions and behaviour of living organisms, the experimental biologist is often tempted to fall back on the causal consideration of the observed phenomena in terms of the single living cell. While it is true that our physiological knowledge of this unit is almost negligible, there is at any rate a widely accepted belief that its properties may often be expressed in...
متن کاملChanges of Apparent Ionic Mobilities in Protoplasm
The normal P.D. across the protoplasm of Valonia macrophysa is about 10 mv. negative (inwardly directed). On adding 0.01 M guaiacol to the sea water the P.D. becomes positive and then slowly returns approximately to the normal value. In many cases this behavior is not much affected by raising the pH and so increasing the concentration of the guaiacol ion but in other cases such an increase make...
متن کاملThe Electrical Conductivity of Pure Protoplasm
The electrical conductivity of the plasmodium of the slime-mold Brefeldia maxima (Fr.) Rost., which constitutes practically pure protoplasm, was found to be approximately equivalent under normal conditions to that of a 0.00145 N NaCl solution, and about 2.8 times that of the liquid in contact with which it developed. When bathed in 1 per cent sea water, the conductivity was much increased, beco...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1889
ISSN: 0006-8071
DOI: 10.1086/326390