Root tissue damage by endoparasitic nematodes in ber root is described here based on original research. Grossly the infected roots appear swollen and black in colour as compared to healthy roots. Sections of infected roots show great variation in the cell size, some cells were enlarged with broken walls while others were hypertrophied due to large egg masses and sections of larvae in them. Increase in the number of cells and formation of giant cells was a common finding. Epidermis and endodermis as well as dermal regions were affected. Syncytial formation in cortical region was the most...

Red snapper Lutjanus argentimaculatus (Forsk., 1775) is infected by the trematodes, cestodes, acanthocephala, nematode larvae and adults which cause damage to the intestine, stomach, liver, visceral mesenteries, kidney and spleen of the fish. Infection rate of nematode larvae found to be very heavy and produces destruction of all layers of stomach and intestine along with fibrosis of visral wall. Acanthocephala may also badly affect the gastric mucosa and granulomatous lesions are produced at the site of penetration and perforation was also produced with large granulomas on serous surface....

Pomegranate are delicious, popular fruit in Pakistan and several other countries of the world. The variety most popular in Pakistan is known as "Khandhari anar." This fruit, its juice, seeds and parts of the tree are beneficial in several diseases and in promoting health. Roots of the tree are attacked by some nematodes. During present study tissue damage in roots infected by Meliodogyne nematodes was observed. Nematodes caused severe damage to whole thickness of the root. Lesions were formed at the site of entry with necrosis, enlargement of cells into giant cells, containing egg masses and...

Nematodes of genus Syphacia and Curvicaudatum are identified in the short tailed Indian mole rat. These nematodes appear to cause severe damage involving whole thickness of the intestine. Main host tissue reactions were atrophy and destruction of villi, dislocation of epithelial cells, necrosis of underlying tissue, formation of granulomatous lesions in the mucosa and muscular layers, hypertrophy and hyperplasia of glandular region, carcinoma of intestine and shrinkage, atrophy of muscle cells. This information is important and useful for zoologists, parasitologists students and pest control...

Scomberomorus guttatus is a popular edible fish of Karachi coast and several parasites have been described from this fish. Here histopathology of stomach of fish infected with a new undescribed trematode of genus Prosorchis is reported which caused severe damage to various organs. The main findings were loss of upright position and architecture of mucosal wall of stomach and hypertrophy. Gastric mucosa was collapsed and necrotic, circular and longitudinal muscle layers were degenerated and separated from each other. Thick wall blood vessels and granulomatous lesions were present. This...

Tissue damage in buffalo liver naturally infected with the trematode Paramphistomum cervi was observed. Hundreds of parasites were present in the liver causing gross abnormalities including swelling, haemorrhage, and change of colour. Histological sections revealed severe damage and host tissue reaction in liver. Main findings were necrosis, bile duct hyperplasia, and fibrosis causing destruction of liver tissue, normal tissue was hardly visible. Thickening of arterial walls, thrombosis and obliteration of lumen was most prominent. This information is of value to students, teachers and...

Fishes are one of the important item in our daily diet and provider of protein. Fishes have also been used in biomedical research. Fishes are important from economic and human health point of view. Anisakiasis is one of the important nematode disease caused by eating raw or poorly cooked fish or fish products containing infective anisakid nematode larvae. Anisakiasis can cause intestinal obstruction, eosinophilic granuloma of gastrointestinal tract. Pulmonary anisakiasis is also known. Distribution of human anisakiasis is universal but predominates in countries such as Japan, The Netherlands...