Development of Pasteuria penetrans on different field populations of Meloidogyne spp. from Pakistan

Kamran, M.; Javed, N.; Abbas, H.; Khan, S.A.; Ullah, I.; Ehetisham Ul Haq, M.; Hussain, M.; Iqbal, M.

Nematology 21(10): 1003-1010

2019


ISSN/ISBN: 1388-5545
DOI: 10.1163/15685411-00003270
Accession: 070971407

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Abstract
Pasteuria penetrans is a hyperparasite with potential as a biological control agent of root-knot nematodes, Meloidogyne spp. In this study two exotic Pasteuria isolates (PP-3 and PP-J) were developed on different Meloidogyne spp. collected from different districts of Punjab, Pakistan. The development of PP-3 and PP-J on different field populations of Meloidogyne spp. showed differential infectivity in terms of nematode reproduction variables. The development of PP-3 and PP-J was maximum on tomato as compared to cucumber. It was probably due to more invasion sites for nematodes present in the tomato roots. However, a bigger root system has not always been a guarantee for development of Pasteuria on Meloidogyne spp. For successful development of Pasteuria, the key parameters are the percentage of infected females, number of endospores (female)(-1) or endospores (mg root powder)(-1). The results of these parameters are greater in tomato as compared to cucumber.