Results 121 to 130 of about 202 (147)
Some of the next articles are maybe not open access.
A natural population of Helisoma duryi in Brazil.
Malacologia, 1976A well established natural population of Helisoma duryi (Wetherby) was recently found in central Brazil, where it was introduced probably with aquatic plants conveyed by aquarists. A morphological description based on the observation of 10 specimens is presented, involving the shell, cephalopodal mass, mantle organs, reproductive system and buccal ...
openaire +1 more source
Journal of Morphology, 1990
AbstractThe morphology and the organization of the endocrine dorsal bodies (DB) of non‐reproducing virgin and castrated, and reproducing mated Helisoma duryi have been examined using serial sectioning. The DB cells occur in two masses on the mid‐dorsal side of the cerebral commissure, each of which has a cortical zone containing the cell bodies and a ...
Hamid R, Khan +2 more
openaire +2 more sources
AbstractThe morphology and the organization of the endocrine dorsal bodies (DB) of non‐reproducing virgin and castrated, and reproducing mated Helisoma duryi have been examined using serial sectioning. The DB cells occur in two masses on the mid‐dorsal side of the cerebral commissure, each of which has a cortical zone containing the cell bodies and a ...
Hamid R, Khan +2 more
openaire +2 more sources
General and Comparative Endocrinology, 1985
Albumen gland explants from Helisoma duryi can be maintained in a liquid culture medium for at least 96 hr. This allows measurement of incorporation of [14C]glucose into newly synthesized polysaccharides both retained in the tissue and released into the medium.
S, Miksys, A S, Saleuddin
openaire +2 more sources
Albumen gland explants from Helisoma duryi can be maintained in a liquid culture medium for at least 96 hr. This allows measurement of incorporation of [14C]glucose into newly synthesized polysaccharides both retained in the tissue and released into the medium.
S, Miksys, A S, Saleuddin
openaire +2 more sources
Canadian Journal of Zoology, 1967
Glycogen and ribonucleic acid are present in the mantle-edge during the prehatching period and in the adult. The cubocolumnar epithelium contains the largest stores of glycogen. Ribonucleic acid is most abundant in the mantle-edge gland, and the mucous and mucoprotein cells. Mucopolysaccharides and glycoproteins occur within the mantle-edge epithelium,
S. P. Kapur, M. A. Gibson
openaire +1 more source
Glycogen and ribonucleic acid are present in the mantle-edge during the prehatching period and in the adult. The cubocolumnar epithelium contains the largest stores of glycogen. Ribonucleic acid is most abundant in the mantle-edge gland, and the mucous and mucoprotein cells. Mucopolysaccharides and glycoproteins occur within the mantle-edge epithelium,
S. P. Kapur, M. A. Gibson
openaire +1 more source
Journal of the Egyptian Society of Parasitology, 1993
The range of distribution of Helisoma duryi, a potential competitor to schistosomiasis snail vectors in Egypt, was determined in the south of Nile Delta. Results show that H. duryi was found in the River Nile, Geziret El Kerateyeen banks, Damietta and Rosetta Branches, Tawfiky and Menoufy Canals and their branches and Bassoussiya, Bahadiya and Sheshaa ...
F, Yousif, M, el Emam, M Z, Roushdy
openaire +1 more source
The range of distribution of Helisoma duryi, a potential competitor to schistosomiasis snail vectors in Egypt, was determined in the south of Nile Delta. Results show that H. duryi was found in the River Nile, Geziret El Kerateyeen banks, Damietta and Rosetta Branches, Tawfiky and Menoufy Canals and their branches and Bassoussiya, Bahadiya and Sheshaa ...
F, Yousif, M, el Emam, M Z, Roushdy
openaire +1 more source
Acta tropica, 1983
Helisoma duryi is a planorbid snail, which has been suggested as biological control agent against the intermediate hosts of schistosomiasis. This snail species has been present in a sugar estate in northern Tanzania since 1972. In January 1981 a snail survey was done in this area in order to determine the distribution and abundance of H. duryi relative
openaire +2 more sources
Helisoma duryi is a planorbid snail, which has been suggested as biological control agent against the intermediate hosts of schistosomiasis. This snail species has been present in a sugar estate in northern Tanzania since 1972. In January 1981 a snail survey was done in this area in order to determine the distribution and abundance of H. duryi relative
openaire +2 more sources
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology
AbstractNanotechnology has been used to apply nanoparticle essential elements to enhance the ability of animals to absorb these elements and consequently improve their reproductive performance. High concentrations of nanoparticles (NPs) can directly harm a range of aquatic life forms, ultimately contributing to a decline in biodiversity. Helisoma duryi
Manar A. Kandeil +4 more
openaire +2 more sources
AbstractNanotechnology has been used to apply nanoparticle essential elements to enhance the ability of animals to absorb these elements and consequently improve their reproductive performance. High concentrations of nanoparticles (NPs) can directly harm a range of aquatic life forms, ultimately contributing to a decline in biodiversity. Helisoma duryi
Manar A. Kandeil +4 more
openaire +2 more sources
An eco-phenotype ofHelisoma duryiclosely resemblingBiomphalaria glabrata
Annals of Tropical Medicine & Parasitology, 1977M A, Prentice, G, Barnish, J D, Christie
openaire +2 more sources
Effects of Castration on Growth and Reproduction ofHelisoma duryi(Mollusca: Pulmonata)
International Journal of Invertebrate Reproduction and Development, 1987A S M Saleuddin
exaly