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Effect of Lanthanum Nitrate on Trichoderma Aureoviride and Its Inhibition Ability on Sclerotinia Sclerotiorum(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2019年01期
Page:
84-89
Research Field:
Publishing date:

Info

Title:
Effect of Lanthanum Nitrate on Trichoderma Aureoviride and Its Inhibition Ability on Sclerotinia Sclerotiorum
Author(s):
LIN Zhi-wei; LI Xiang; LI Ke; XIAO Cui-hong; SUN Dong-mei
(Agronomy College of Heilongjiang Bayi Agricultural University, Daqing 163319,China)
Keywords:
Lanthanum nitrate ［La(NO3)3］; Trichoderma aureoviride; Sclerotinia sclerotiorum; Inhibition; Confrontation culture
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2019.01.0084
Abstract:
In order to study the relationship between Trichoderma aureoviride antagonistic properties with lanthanum nitrate, Sclerotinia sclerotiorum was taken as the indicator, using solid and liquid culture methods, the effects of different concentrations of lanthanum nitrate on T.aureoviride antagonistic ability were detected. The results showed that the inhibited contention of lanthanum nitrate on the mycelial growth of T.aureoviride was 210 μg·mL-1, and the completely inhibited concentration was 1 000 μg·mL-1, but the concentration below 180 μg·mL-1 could stimulate the growth of mycelium. The inhibited concentration of lanthanum nitrate on the mycelial growth of S. sclerotiorum was higher than 330 μg·mL-1, the completely inhibited concentration was 1 100 μg·mL-1. Within a certain range, the addition of lanthanum nitrate has no inhibition effect of T.aureoviride on S.sclerotiorum, the inhibition rate under confrontation culture was still up to 100%. After the addition of lanthanum nitrate in fermentation, the inhibition ability of crude extracts remained unchanged, but the antagonistic bands were obviously strengthened.

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Last Update: 2019-01-22