Results 121 to 130 of about 1,409 (165)

Flipping the switch: Illuminating inverted ligand activation of peptide-gated ion channels. [PDF]

Biophys J
Elkhatib W, Senatore A.
europepmc   +1 more source

Effects of contrasting herbivore cues on seedlings of a long-lived woody tree: growth, chemistry, and resistance to herbivores. [PDF]

AoB Plants
Bhavanam SP, Preisser EL, Orians CM.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

On the regeneration of the eye in Helix aspersa and Cryptomphallus aspersa

Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1973
The distal half of the posterior tentacle of adult Helix aspersa and Cryptomphallus aspersa was removed and the proximal half was studied with light and electron microscopy after different intervals. The tentacle itself does not regenerate, but the receptor organs at the distal end of the normal tentacle differentiate at the level of the section.
V F, Scarsso, A, Pellegrino de Iraldi
openaire   +2 more sources

Pinocytosis in eyes of a snail, Helix aspersa

Journal of Ultrastructure Research, 1982
Extirpated eyes of the snail Helix aspersa , from which lenses were removed surgically, were incubated in horseradish peroxidase (HRP) and prepared cytochemically for electron microscopy to determine the positions of HRP. There was some internalization of tracer by pinocytic vesicles and tubules in Type I sensory cells and much uptake by Type II ...
R M, Eakin, J L, Brandenburger
openaire   +2 more sources

Phosphatase activity in the hepatopancreas of Helix aspersa

Comparative Biochemistry and Physiology Part A: Physiology, 1992
1. Phosphatase acid (PhA) activity in the digestive gland (hepatopancreas) of the common garden snail Helix aspersa has been investigated using cytochemical methods. 2. All the cells composing this gland show PhA activity, the distribution pattern differing according to the cell type. 3.
A, Almendros, D, Porcel
openaire   +2 more sources

Autofluorescence in the retina of a snail, Helix aspersa

Vision Research, 1978
Microvilli (presumed photoreceptoral organelles) and masses of microvesicles, called photic vesicles, in the eyes of a garden snail (Helix aspersa) autofluoresce under u.v. illumination. The fluorescence lasts 20–30 sec. Under the same experimental conditions and procedures the outer segments of rods and cones of the frog Xenopus laevis (control ...
R M, Eakin, J L, Brandenburger
openaire   +2 more sources

Observations on Reproduction in Helix aspersa

American Midland Naturalist, 1962
There are five distinct periods involved in the life history of Helix aspersa. This study is concerned with those portions of the reproductive cycle which are grossly visible, and particularly with the time involved in each period. Preliminary maneuvering averages 30 minutes, and subsequent copulation time 6.5 hours.
Fred Herzberg, Anne Herzberg
openaire   +1 more source

Ionic regulation in the snail, Helix aspersa

Comparative Biochemistry and Physiology, 1968
Abstract 1. 1. Sodium in the blood of Helix aspera varied between 58 and 138 mM/l. and other cations comparably. 2. 2. In specimens that had fasted 1–11 days and had then been in contact with water for 2 hr, sodium, potassium, calcium and magnesium averaged 68 ± S.D. 6, 2·9 ± S.D. 0·3, 6·2 ± S.D. 1·1 and 3·6 ± S.D.
openaire   +2 more sources

Differentiation in the eye of a pulmonate snail Helix aspersa

Journal of Ultrastructure Research, 1967
The development of the eye of a stylommatophoran snail, Helix aspersa , was studied by electron microscopy at various stages of morphogenesis from the initial invagination of the embryonic ectoderm to form an eyecup to the fully differentiated organ in the adult.
R M, Eakin, J L, Brandenburger
openaire   +2 more sources