Determination of the bacterial flora as a microbial control agent of Toxoptera aurantii (Homoptera: Aphididae)

Abstract: Toxoptera aurantii (Homoptera: Aphididae) is one of the most important pests of many agricultural plants such as camellia, cocoa and coffee worldwide. The culturable bacterial flora of the pest was determined to find new microbes that can be used as biocontrol agent against T. aurantii. A total of six bacteria were isolated and identified by a variety of morphological, physiological, biochemical and molecular tests. In addition, an approximately 1,150 bp fragment of the 16S rRNA gene region was sequenced to verify isolate identification. According to the identification studies, the isolates were identified as Bacillus tequilensis Cb1, Chryseobacterium stagni Cb2, Pseudomonas flourescens Cb3, Rahnella aquatilis Cb4, Staphylococcus sp. Cb5 and Cb6. Pathogenicity of the bacterial isolates were carried out against the last instar nymphs of T. aurantii. The highest activity was obtained from Pseudomonas flourescens Cb3 with 50% mortality within 10 days after application (p<0.05). Mortalities of other treatments ranged from 6.6 to 20%. The results presented here show that Pseudomonas flourescens Cb3 appears to be a significant candidate as a possible biocontrol agent against T. aurantii and should be beneficial in the future biocontrol programs of the pest.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Determination of the bacterial flora as a microbial control agent of Toxoptera aurantii (Homoptera: Aphididae) ; volume:67 ; number:2 ; year:2012 ; pages:397-404 ; extent:8
Biologia ; 67, Heft 2 (2012), 397-404 (gesamt 8)

Urheber
Sevim, Elif
Çelebi, Ömer
Sevim, Ali

DOI
10.2478/s11756-012-0022-0
URN
urn:nbn:de:101:1-2409221728314.408367466385
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:26 MESZ

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Beteiligte

  • Sevim, Elif
  • Çelebi, Ömer
  • Sevim, Ali

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