Paratrichodorus minor

Paratrichodorus minor is a species of nematode in the family Trichodoridae, the stubby root nematodes. This nematode is known commonly as the minor stubby-root nematode. It is a plant pathogen that causes damage to a variety of crops.

Description

The minor stubby-root nematode is a small, slender nematode that measures about 0.5 to 0.8 millimeters in length. It has a straight body when relaxed and a rounded head. The cuticle is smooth and the lateral fields are marked by four incisures. The esophagus is overlapped by the intestine and the anus is located near the tail end.

Distribution and habitat

Paratrichodorus minor is found worldwide, particularly in regions with temperate climates. It inhabits the soil and feeds on the roots of plants, causing damage and reducing crop yields.

Life cycle

The life cycle of the minor stubby-root nematode includes four juvenile stages and an adult stage. The nematode reproduces by parthenogenesis, a form of asexual reproduction in which offspring develop from unfertilized eggs.

Pathogenicity

Paratrichodorus minor is a significant plant pathogen. It feeds on the roots of a wide range of plants, including many important agricultural crops. The nematode causes damage by piercing the root cells with its stylet and injecting digestive enzymes. This results in the formation of necrotic lesions and can lead to stunted growth, wilting, and yield loss.

Management

Management of Paratrichodorus minor infestations involves a combination of cultural practices, biological control, and chemical control. Cultural practices include crop rotation and the use of resistant varieties. Biological control involves the use of nematode predators, parasites, and pathogens. Chemical control includes the use of nematicides.

See also

• Nematode
• Plant pathology
• Parthenogenesis

Paratrichodorus minor Resources
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