In a recent paper by Krull (I), Cotylophoron cotylophorum was reported from Puerto Rico, and it was shown by experiments that in the United States a snail. The Biodiversity Heritage Library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community. Eumetazoa › Bilateria › Platyhelminthes › Trematoda › Digenea › Plagiorchiida › Pronocephalata › Paramphistomoidea › Paramphistomidae › Cotylophoron.
|Published (Last):||5 April 2014|
|PDF File Size:||15.64 Mb|
|ePub File Size:||2.72 Mb|
|Price:||Free* [*Free Regsitration Required]|
In the present study, in vitro effect of aqueous extract of pods of Acacia concinna AcP E on the morphology and the histology of the digenetic trematode Cotylophoron cotylophorum have been investigated. Ruptured teguments with blebs were observed on the dorsal surface of Ac PE-treated flukes after 8 h of incubation [ Figure cltylophorum ].
Numerous smaller blebs were observed near the oral region of Ac PE-treated fluke [ Figure 1d ]. Anthelmintic efficacy of Acacia concinna against paramphistomes in naturally infected sheep.
The specimens were dehydrated by ascending graded alcohol series and cleared by propylene oxide. This helps for marking the areas of interest.
Biodiversity Heritage Library
Electron microscopic observations of tegumental damage in adult Schistosoma japonicum after in vivo treatment with levo-praziquantel. The walls of the testes were lined by germinal epithelium where from the spermatocytes were formed and liberated into the lumen [ Figure 3c ].
Acacia concinnaanthelmintic, Cotylophoron cotylophorummorphology, paramphistome, ruminant. A number of studies on tegumental pathology induced by anthelmintics have suggested that the drug acts to alter the permeability and osmoregularity properties of the tegument.
Update of the situation in the American continent. In vitro effect of azadirachtin on the motility and acetylcholinesterase activity of Cotylophoron cotylophorum.
Morphological and histological analysis of Cotylophoron cotylophorum treated with Acacia concinna. Tegumental surface alterations following treatment in vitro with the deacetylated amine metabolite cotylophoroh diamphenethide. Medicinal Plants of the World: The eggs of the untreated flukes are oval in shape, with distinct yolk cells [ Figure 3g ].
Adult live flukes numbering to ten were incubated in 25 mL of 0. Author information Article notes Copyright cotyllophoron License information Disclaimer. The effect of flukicidal agents on the morphological integrity of trematodes usually exhibited the tegumental distortions and vacuole formation. Several plants have anthelmintic properties and are used to eradicate parasites since ancient time.
July 24, Last sequence update: Bleb formation may be a result of disruption of the brush border cytoskeleton as suggested by Stoitsova for Hymenolepis fraterna treated with colchicine. The action of many anthelmintics is reflected in their ability to inhibit the activity of enzymes involved cotyloophoron carbohydrate metabolism. The present study corroborates with the earlier reports.
The SEM micrograph of treated flukes showed the appearance of few blebs near the oral region and rupture of the dorsal surface of the tegument.
Morphological and histological analysis of Cotylophoron cotylophorum treated with Acacia concinna
Transmission electron microscopic observations The tegument of the untreated fluke consists of compact tubercles, and tegumental syncytium is intact [ Figure 4a ].
Light and scanning electron microscopy of Fibricola seoulensis collected from albino rats treated with praziquantel. In Ac PE-treated flukes, after 8 h and exposure blebs appeared in the tegument of posterior sucker [ Figure 2d ].
Granular endoplasmic reticulum ger is also seen Bar Numerous lesions were observed in the gastrodermis of the parasite [ Figure 3b ]. Severe injury to the tegument due to bleb formation, detachment of tubercles, and vacuolization of the subtegumental region was observed. Parasites have a potential ability to attain wide variety of physiological and biochemical adaptations to survive within the specialized environment of the host.
Adult live flukes were collected from the rumen of the sheep slaughtered at the Perambur abattoir, Chennai, Tamil Nadu, India. Light and scanning electron microscopic studies on the effect of Acacia arabica against Cotylophoron cotylophorum.
A light and transmission electron microscopy study. Disruption of perinuclear membrane with spillage of chromatin material arrowhead Bar Structural damage of the brush border of Hymenolepis fraterna Cestoda under the action of colchicine.
Parenchyma The parenchyma of untreated fluke appeared intact [ Figure 2e ]. Select the link destinations: The posterior sucker of untreated fluke appeared smooth [ Figure 1e ]. Exposure of adult live parasites to aqueous extract of pods of Acacia concinna The concentration of 0. Similar phenomenon was observed in nematodes and trematodes treated with praziquantel,[ 2627 ] ivermectin,[ 28 ] niclosamide, and oxyclozanide. Intestine Intestinal cecum of untreated fluke has a thin wall and large lumen.
In vitro effect of some anthelmintics on lactate dehydrogenase activity of Cotylophoron cotylophorum Digenea: The Ac PE was prepared by boiling 10 g of powdered pods in mL of distilled water for 10 min under constant stirring, which was then made into a fine paste.
Degenerating germ cells were seen in the vacuolar spaces [ Figure 3f ]. One of the major sources of wool and meat production is sheep.
Further, as observed from the LM and TEM studies, cytoplasmic autolysis and cellular necrosis were prominent, which may lead to death of the parasites. The plant is widely used in traditional system of medicine for control of pathogenic bacterial and fungal diseases.
They were washed using distilled water and dehydrated through graded alcohol series. Ovary The ovary is rounded, median, and posttesticular and is lined by germinal epithelium in the untreated flukes [ Figure 3e ]. The absence of this section means that the gene is located in one of the main chromosomal element s.
Many of the anthelmintic drugs available to combat helminth infections have developed resistance. Photomicrographs of the gastrodermis, testis, ovary, and egg of untreated Cotylophoron cotylophorum and those treated with aqueous extract of pods of Acacia concinna 0.