文献类型： 外文期刊
作者： Wang Gongshuai 1 ; Yin Chengmiao 1 ; Pan Fengbing 1 ; Wang Xiaobao 1 ; Xiang Li 1 ; Wang Yanfang 2 ; Wang Jinzheng 3 ; Ti 1 ;
作者机构： 1.Shandong Agr Univ, State Key Lab Crop Biol, Coll Hort Sci & Engn, Tai An 271018, Shandong, Peoples R China
2.Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China
3.Shandong Inst Pomol, Tai An 271000, Shandong, Peoples R China
4.Yantai Acad Agr & Sci, Yantai 265500, Shandong, Peoples R China
5.Garden Off Linyi Lanshan, Linyi 276000, Shandong, Peoples R China
期刊名称：HORTICULTURAL PLANT JOURNAL （ 影响因子：3.032； ）
ISSN： 2095-9885
年卷期： 2018 年 4 卷 5 期
页码：
收录情况： SCI
摘要： Apple replant disease (ARD) is a frequently occurring plant disease in replanted orchards around Bohai Gulf, which causes growth inhibition and even death of plants. The aim of this study was to investigate the etiology of ARD around Bohai Gulf. In this study, the primary growth inhibition of apple seedlings was evaluated in ten replanted soils, sampled around Bohai Gulf. A fungal clone library was used to identify changes in the structure and composition of the soil fungal community. The results revealed that the Simpson diversity indices of Laizhou and Pulandian orchards were higher than others, presenting severe ARD. Ascomycota dominated around Bohai Gulf at the phyla level. Fusarium and Saccharomyces were abundant in all replanted soils. In addition, correlations between the relative abundance of fungal genera in soils and the severity of ARD were analyzed. The results showed that Fusarium was correlated positively with the severity of ARD, but Mortierella was negatively correlated. Furthermore, the quantitative PCR of Fusarium oxysporum, which was regarded as a factor of ARD, was performed. Overall, this study demonstrated that ARD was strongly associated with an unbalanced microbial ecosystem with more pathogenic fungi, while Fusarium in the apple replanted soil was the key factor for ARD around Bohai Gulf.
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