Biological Control of Erwinia carotovora ssp. carotovora by Streptomyces Species

Ten isolates of Erwinia carotovora ssp. carotovora (Ecc) were isolated from infected potato tubers of Picasso, Sante, and Nevskiy varieties collected from different regions in Kyrgyzstan. Isolates were identified as Erwinia carotovora ssp. carotovora (Ecc) by standard bacteriological techniques and pathogenicity tests on tubers and also by PCR analyses. Tests on the pathogenicity of E. carotovora ssp. carotovora (Ecc) strains to host plants by artificial inoculation have shown a high sensibility of the Picasso variety. As a result, five isolates were chosen, three isolates (EcPo1, EcPo2, and Eco3) were highly pathogenic, while two isolates (Eco4 and Eco5) were weakly pathogenic. The antagonistic bacteria, Streptomyces diastatochromogenes strain sk-6, and Streptomyces graminearuss strain sk-2, have a highly significant effect on soft rot bacteria isolates (Ecc), more than the other tested antagonistic organisms in vitro screening biotests. The Streptomyces diastatochromogenes sk-6 was selected for the control assay of storage potatoes against the most common soft rot bacterial strain in Kyrgyzstan, Erwinia carotovora sp. carotovora EcPo2. The pretreatment of potato tubers with antagonistic bacteria successfully prevented the initial infection multiplication of soft rot bacteria and reduced soft rot disease of potatoes in storage. These results justify selection of the dose 106 cells/ml of bacteria Streptomyces diastatochromogenes sk-6 for use in powdering the infected or non-infected potato tubers to suppress the development soft rot during storage. Streptomyces diastatochromogenes sk-6 as a biological disinfectant could destroy surface and internal infections, protect the tubers from the growth of phytopathogenic bacteria in the early period of their reproduction, and improve the overwintering of winter crops. -

KEYWORDS: Potato Tubers, Soft Rot Disease, Erwinia carotovora ssp. carotovora, Biological Control, Streptomyces diastatochromogenes.

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Yayın Adı
(dc.title)
Biological Control of Erwinia carotovora ssp. carotovora by Streptomyces Species
Yazar/lar
(dc.contributor.yazarlar)
Tinatin Doolotkeldieva, Saykal Bobusheva, Ayzat Suleymankisi
Yayın Türü
(dc.type)
Makale
Dil
(dc.language)
İngilizce
Yayımlanma Yılı
(dc.date.issued)
2016
Ulusal/Uluslararası
(dc.identifier.ulusaluluslararasi)
Uluslararası
Kaynak
(dc.relation.journal)
Advances in Microbiology
Süreli Sayı
(dc.identifier.issue)
2
Cilt/Sayı
(dc.identifier.volume)
6
Sayfa
(dc.identifier.startpage)
104-114
ISSN/ISBN
(dc.identifier.issn)
ISSN: 2327-0810; Online ISSN: 2327-0829
Yayıncı
(dc.publisher)
Scientific Research Publishing
Veri Tabanları
(dc.contributor.veritaban)
Scientific Research Publishing (SCIRP)
İndex Türü
(dc.identifier.index)
Diğer Hakemli Dergi
Özet
(dc.description.abstract)
Ten isolates of Erwinia carotovora ssp. carotovora (Ecc) were isolated from infected potato tubers of Picasso, Sante, and Nevskiy varieties collected from different regions in Kyrgyzstan. Isolates were identified as Erwinia carotovora ssp. carotovora (Ecc) by standard bacteriological techniques and pathogenicity tests on tubers and also by PCR analyses. Tests on the pathogenicity of E. carotovora ssp. carotovora (Ecc) strains to host plants by artificial inoculation have shown a high sensibility of the Picasso variety. As a result, five isolates were chosen, three isolates (EcPo1, EcPo2, and Eco3) were highly pathogenic, while two isolates (Eco4 and Eco5) were weakly pathogenic. The antagonistic bacteria, Streptomyces diastatochromogenes strain sk-6, and Streptomyces graminearuss strain sk-2, have a highly significant effect on soft rot bacteria isolates (Ecc), more than the other tested antagonistic organisms in vitro screening biotests. The Streptomyces diastatochromogenes sk-6 was selected for the control assay of storage potatoes against the most common soft rot bacterial strain in Kyrgyzstan, Erwinia carotovora sp. carotovora EcPo2. The pretreatment of potato tubers with antagonistic bacteria successfully prevented the initial infection multiplication of soft rot bacteria and reduced soft rot disease of potatoes in storage. These results justify selection of the dose 106 cells/ml of bacteria Streptomyces diastatochromogenes sk-6 for use in powdering the infected or non-infected potato tubers to suppress the development soft rot during storage. Streptomyces diastatochromogenes sk-6 as a biological disinfectant could destroy surface and internal infections, protect the tubers from the growth of phytopathogenic bacteria in the early period of their reproduction, and improve the overwintering of winter crops. -
Özet
(dc.description.abstract)
KEYWORDS: Potato Tubers, Soft Rot Disease, Erwinia carotovora ssp. carotovora, Biological Control, Streptomyces diastatochromogenes.
URL
(dc.rights)
http://www.scirp.org/Journal/PaperInformation.aspx?PaperID=63683
Fakültesi / Enstitütü
(dc.identifier.fakulte)
Ziraat Fakültesi
Bölümü
(dc.identifier.bolum)
Bitki Koruma Bölümü
Kurumdaki Yazar/lar
(dc.contributor.author)
Tinatin DOOLOTKELDİEVA
Kurumdaki Yazar/lar
(dc.contributor.author)
Saykal BOBUŞOVA
Kayıt No
(dc.identifier.kayitno)
BL91A6F1DC
Kayıt Giriş Tarihi
(dc.date.available)
2016-04-07
Not (Yayımlanma Yılı)
(dc.identifier.notyayinyili)
February 2016
Konu Başlıkları
(dc.subject)
potato tubers
Konu Başlıkları
(dc.subject)
soft rot disease
Konu Başlıkları
(dc.subject)
erwinia carotovora ssp. carotovora
Konu Başlıkları
(dc.subject)
biological control
Konu Başlıkları
(dc.subject)
streptomyces diastatochromogenes
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