|Table of Contents|

Nematocidal Activities and Species Identification of Three Biocontrol Fungi(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2019年04期
Page:
576-583
Research Field:
Publishing date:

Info

Title:
Nematocidal Activities and Species Identification of Three Biocontrol Fungi
Author(s):
CHEN Xiu-ju;  LI Hui-xia;  XU Zhi-peng;  LUO Ning;  HAN Shang-ming
(College of Plant Protection of Gansu Agricultural University/Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province, Lanzhou 730070, China)
Keywords:
Soybean cyst nematode;  Biocontrol fungi;  Nematicidal activity;  Identification
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2019.04.0576
Abstract:
Soybean cyst nematode (SCN) is an important nematode affecting soybean yield. In order to obtain more biocontrol fungi against SCN, we detected parasitic effects of spore suspensions of biocontrol fungi D1, D7 and A1 on eggs and nematocidal activity of fermentation broth on juveniles in laboratory. The results showed that after treated 12 d, the parasitic rate of spore suspension of the three strains on eggs respectively were 68.83%, 81.33% and 79.50%. After treated 14 d, the inhibition rates of fermentation broth of D1, D7 and A1 on egg hatching were 70.00%, 77.78% and 68.89%, respectively. After treated 3 d, the mortality rates of fermentation on the second-stagejuveniles were 90.01%, 86.74% and 80.03%, respectively. The strains D1, D7 and A1 were identified asAspergillussp.,A.fumigatus, andA.parasiticusrespectively according to morphological characteristics, rDNA-ITS sequence alignment and analysis of phylogenetic tree.

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Last Update: 2019-07-25