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Colonization Ability and Effect on Ginger Bacterial Wilt of Endophyte SZ-1(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年01期
Page:
134-137
Research Field:
Publishing date:

Info

Title:
Colonization Ability and Effect on Ginger Bacterial Wilt of Endophyte SZ-1
Author(s):
SUN Zheng-xiang; WANG Feng; ZHANG Hao; DENG Le; ZHOU Yi
College of Agriculture，Yangtze University，Jingzhou，Hubei 434025
Keywords:
ginger bacterial wilt; endophyte; colonization ability; control effect
PACS:
S476.1
DOI:
-
Abstract:
Endophyte SZ-1 which had a strong inhibition on Ralstonia solanacearum was screened from disease-free root ginger；colonization dynamics of SZ-1 marked with Rifampicin on the rhizosphere of ginger was investigated；control effect of SZ-1 fermentation broth on ginger bacterial wilt was illustrated.The results showed strain SZ-1 had inhibitation on six pathogen including Pesudmonas solanacearum Smith，Erwinia carotovora var.carotovora，Xanthomonas oryzae pv.Oryzae etc.in varying degree.The amount of SZ-1 on the rhizosphere of ginger went up first and droped later，which remained 4.6×105 cfu/g fifty days after inoculation.The incidence of ginger bacterial wilt was 23.47% and the disease index was 12.56 thirty days after inoculation，while they were respectively 89.63% and 31.52 in the control.The relative control effect was 60.15%.

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Last Update: 2014-08-22