๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Effect of ultracentrifuging on polarity in the pollen grains of Vinca rosea

โœ Scribed by Beams, H. W. ;King, R. L.

Publisher
Wiley (John Wiley & Sons)
Year
1944
Tongue
English
Weight
456 KB
Volume
24
Category
Article
ISSN
0095-9898

No coin nor oath required. For personal study only.

โœฆ Synopsis

The use of centrifugal force in the study of the structure and development of the animal egg has been extensive. The general result of this work has been to show that the polarity and pattern of organization of a n animal egg are not greatly changed by the displacement of its visible materials. Polarity here would seem t o inhere in some other substance than the displaceable inclusions. Lillie ( '06, '09) thinks that the physical basis of polarity resides in the "ground substance" while Conklin ( '17, '24) considers it to be in the "spongioplasm. " Centri-

๐Ÿ“œ SIMILAR VOLUMES

Effects of pressure on the composition d
Effects of pressure on the composition density distribution in the ultracentrifuge
โœ Dan S. Sharp; James B. Ifft ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Wiley (John Wiley & Sons) ๐ŸŒ English โš– 459 KB ๐Ÿ‘ 2 views

## Abstract The effects of pressure on the composition density distribution in a binary density gradient at sedimentation equilibrium in the analytical ultracentrifuge are rigorously examined. A computer algorithm is described for the necessary iterative computations. The pressure effect is found t

Field assessment of toxic effects on rep
Field assessment of toxic effects on reproduction in the earthworms Aporrectodea longa and Aporrectodea rosea
โœ Martin Holmstrup ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 88 KB ๐Ÿ‘ 1 views

## Abstract The aim of the present study was to estimate the in situ cocoon production in grassland of two earthworm species, __Aporrectodea longa__ and __A. rosea__, in relation to application dose of Benomyl. The method used to estimate cocoon production was based on a detailed knowledge of the i

Effect of lipid polarity and cell design
Effect of lipid polarity and cell design on the in vitro transport of salicylic acid
โœ Matthew A. Augustine; James Swarbrick ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 438 KB ๐Ÿ‘ 1 views

The transport kinetics of salicylic acid have been studied in a Schulman-type in vitro model cell containing two aqueous phases ( A and C ) separated by a third liquid lipid phase (B) simulating the biomembrane. Prime consideration was given to evaluating the effect of increasing the polarity of the