ECOLOGY AND PATHOGENICITY OF THE HOPLOLAIMIDAE (NEMATA) FROM THE SAHELIAN ZONE OF WEST-AFRICA .7. HELICOTYLENCHUS DIHYSTERA (COBB, 1893) SHER, 1961 AND COMPARISON WITH HELICOTYLENCHUS MULTICINCTUS (COBB, 1893)GOLDEN, 1956

Citation
P. Baujard et B. Martiny, ECOLOGY AND PATHOGENICITY OF THE HOPLOLAIMIDAE (NEMATA) FROM THE SAHELIAN ZONE OF WEST-AFRICA .7. HELICOTYLENCHUS DIHYSTERA (COBB, 1893) SHER, 1961 AND COMPARISON WITH HELICOTYLENCHUS MULTICINCTUS (COBB, 1893)GOLDEN, 1956, Fundamental and applied nematology, 18(6), 1995, pp. 503-511
Citations number
20
Categorie Soggetti
Zoology
ISSN journal
11645571
Volume
18
Issue
6
Year of publication
1995
Pages
503 - 511
Database
ISI
SICI code
1164-5571(1995)18:6<503:EAPOTH>2.0.ZU;2-#
Abstract
The geographical distribution and field host plants, population dynami cs and vertical distribution were studied for the nematode Helicotylen chus dihystera. The factors influencing the multiplication rate and th e effects of anhydrobiosis were studied for H. dihystera and H. multic inctus in the laboratory and showed that absence of H. multicinctus fr om semi-arid tropics of West Africa might be explained by the effects of high soil temperature on multiplication rate and low survival rate after soil desiccation during the dry season. The field and laboratory observations showed that anhydrobiosis might induce a strong effect o n the physiology of H. dihystera, nematode numbers being higher after soil desiccation during the dry season. H. dihystera appeared pathogen ic to peanut and millet.