Toxicity of Entomopathogenic Nematode Symbiotic Bacteria Strains on Eggs of Plant Parasite Nematodes(PDF)

¡¶´ó¶¹¿Æѧ¡·[ISSN:1000-9841/CN:23-1227/S]

Issue:

2014Äê06ÆÚ

Page:

896-899

Research Field:

Publishing date:

Info

Title:

Toxicity of Entomopathogenic Nematode Symbiotic Bacteria Strains on Eggs of Plant Parasite Nematodes

Author(s):

SONG Jie¹; 2; XU Yan-li¹; YAO Qin¹

1.Key Laboratory of Mollisols Agroecology,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,China;

2.College of Agriculture,Northeast Agricultural University,Harbin 150030,China

Keywords:

Entomopathogenic; Symbiotic bacteria; Heterodera glycines; Meloidogyne incognita; Egg hatching; Toxicity

PACS:

S565.1

DOI:

10.11861/j.issn.1000-9841.2014.06.0896

Abstract:

Toxicity of entomopathogenic nematodes with symbiotic bacteria on egg hatching of the plant parasitic nematodes was examined.Four strains of entomopathogenic nematode symbiotic bacteria were isolated from different entomopathogenic nematodes including Photorhabdus luminescens-NJ,Photorhabdus luminescens-Hb£¨USA£©,Xenorhabdus nematophilus-Sc and Xenorhabdus nematophilus-Sc-All.The effect of the four strains on the egg hatching of plant parasitic nematodes was investigated.The result indicated that the four strains significantly inhibited egg hatching of these plant parasitic nematodes.The inhibition range was from 74.1% to 100% with soybean cyst nematodes and from 57.8% to 89.2% with Meloidogyne incognita.But suppressive effects were variable with different strains.The suppression of NJ and Hb£¨USA£©strains were better than Sc and Scª²All strains on soybean cyst nematode,and the percentage of inhibition was 89.7% and 100% respectively.But strains of Sc and Sc-All suppressed on Meloidogyne incognita better by 78.2% and 89.2%.It demonstrated that the symbiotic bacteria was showed toxicity on the plant parasitic nematodes.

References:

£Û1£ÝWrather J A,Koening S R.Estimates of disease effects on yields in the United States 2003 to 2005[J].Journal of Nematology,2006,38:173-180.

Memo

Memo:

-

Common functions