Studies On the Host-Parasite Relations of Pratylenchus Penetrans (Cobb) To Apple Seedlings

Histopathology and histochemistry of lesions caused byPratylenchus penetransin roots of forage legumes

“…Nematodes moved and fed in the epidermis and cortical parenchyma but never penetrated the endodermis and stele, as reported in apple (Pitcher et al 1960), cabbage (Acedo & Rohde 1971), and celery (Townshend 1963a).…”

Cellular Responses of Plants to Nematode Infections

“…Peach roots, however, react strongly posi tive for phenols in cortical parenchyma as well as in dermal and endoder mal layers. Pratylenchus causes rapid browning of all tissues of peach roots but only of dermal and endodermal tissues of apple roots (66). Similarly, P. penetrans reproduces without inducing brown lesions in roots of turfgrass which have low concentrations of phenolic compounds, but induces brown lesions in leaves of ryegrass with high concentrations of phenolic sub stances (82).…”

A survey of SL1-spliced transcripts from the root-lesion nematode Pratylenchus penetrans

“…It has been reported as a pathogen of many crops, including legumes (Townshend 1978;Elliott and Bird 1985), vegetables (Townshend 1963a;Hung and Rohde 1973), strawberries (Townshend 1963b), fruits (Mountain and Patrick 1959;Pitcher et al 1960;Wyss 1970), corn and potato (Dickerson et al 1964) and turfgrasses (Troll and Rohde 1966). The life cycle of the nematode is completed in 45-65 days, so that several generations can develop within one growing season.…”