Font Size: a A A

Pathogen Diversity Of Sooty Blotch And Flyspeck Associated From Three Provinces In South China

Posted on:2012-04-26Degree:MasterType:Thesis
Country:ChinaCandidate:Y P LeiFull Text:PDF
GTID:2213330344951438Subject:Microbiology
Abstract/Summary:PDF Full Text Request
Sooty blotch and flyspect are common fungal diseases taken place in fruits and stems that cause economic losses of fruits and ormamental value because of the blemishing surfaces. The previous study showed sooty blotch and flyspeck distributed widespreadly, and with highly host diversity..Samples with sooty blotch and flyspeck signs were collected from 15 locations in Yunnan, Hainan, and Guangdong Provinces in 2009, and 450 samples were preserved, 277 pure isolates were obtained.Based on phylogenetic analysis of ITS sequences from 38 representative strains, the results of research showed that the pathogens distributed in 9 genera: Peltaster,Stomiopeltis,Zygophiala,Dissoconium,Ramichloridium,Scleroramularia,Mycosphaerella,Strelitziana,Wallemia. The pathogen of sooty blotch and flyspeck covered former reported genera, and showed that those genera are main group related with sooty blotch and flyspeck, But in this paper we discovered several new species associated with sooty blotch and flyspeck, it demonstrated the hight diversity of sooty blotch and flyspeck pathogen. Distinct colony morphology on PDA medium of these 9 genera was summarized, it can be used as an available indicator to identify sooty blotch and flyspeck pathogen complex into genera.Thirteen new species and one known species in 7 genera of sooty blotch and flyspeck complex were described based on morphological characteristics in combination with phylogenetic analysis of ITS sequence, which include Zygophiala lashihaiensis sp. nov., Zygophiala yuxiensis sp. nov., Zygophiala longensis sp. nov.,Peltaster tadpolensis sp. nov., Scleroramularia danensis sp. nov., Scleroramularia guangensis sp. nov., Dissoconium danensis sp. nov.,Ramichloridium maomingensis sp. nov., Ramichloridium hunanensi sp. nov. Zeloasperisporium cannaensis sp. nov.,Zeloasperisporium parthensis sp. nov.,Zeloasperisporium washingensis sp. nov.,Tripospermum guanagensis sp. nov.,Tripospermum yunensis sp. nov.
Keywords/Search Tags:morphology identify, Phylogenetics, host diversity, ITS seqencee analysis
PDF Full Text Request
Related items