Effects of Metabolites of Gliocladium roseum on Egg Hatching and Juvenile Mortality of Meloidogyne incognita (PDF)

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

Issue:

2011Äê05ÆÚ

Page:

818-822

Research Field:

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Title:

Effects of Metabolites of Gliocladium roseum on Egg Hatching and Juvenile Mortality of Meloidogyne incognita

Author(s):

WANG Li-fang¹; 2; XU Yan-li ¹; LI Shu-xian³; LI Chun-jie¹; Allen G.XUE⁴

1.Key Laboratory of Mollisols Agroecology,National Observation Station of Hailun Agroecology System,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,Heilongjiang,China;?

2.The Graduate University of Chinese Academy of Sciences,Beijing 100049,China;?

3.United States Department of Agriculture-Agricultural Research Service(USDA/ARS),Crop Genetics Research Unit(CGPRU),Stoneville,MS 38776,USA;

Keywords:

Gliocladium spp.; Metabolites; Meloidogyne incognita

PACS:

S565.1

DOI:

10.11861/j.issn.1000-9841.2011.05.0818

Abstract:

The filamentous fungi Gliocladium spp.has potential as a biocontrol agent against many pathogens.The objective of this study was to evaluate the effects of ferment filtrate and volatile metabolites of G.roseum on egg hatching and juvenile mortality of Meloidogyne incognita.The nematode egg hatching rates and juvenile activity for treatments with volatile metabolites and with 0¡Á,5¡Á,10¡Á,20¡Á and 40¡Á dilutions of the G.roseum culture filtrate were measured in this test.Results showed that G.roseum ferment filtrate inhibited nematode egg hatching and juvenile mortality by 80.4% and 32.0%,respectively.Dilution of ferment filtrate reduced the inhibition of nematode egg hatching and the juvenile activity.Volatile metabolite of G.roseum also inhibited nematode egg hatching and juvenile activity.G.roseum can be used as a biocontrol agent against plant parasitic nematodes.

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