Batı Karadeniz Bölgesindeki entomopatojen nematodların (steinernematidae ve heterorhabditidae) tür çeşitliliği ve dağılımı

Yıl 2018, Cilt: 33 Sayı: 1, 6 - 13, 15.02.2018

Barış Gülcü

https://doi.org/10.7161/omuanajas.300755

Cited By: 2

Öz

2013-2015
yılları arasında yürütülen arazi çalışmaları ile Steinernematidae ve
Heterorhabditidae familyalarından entomopatojen nematodların Batı Karadeniz
Bölgesinin Düzce, Bolu, Karabük ve
Zonguldak illerindeki tür çeşitliliği ve dağılımı araştırılmıştır. Alınan 183
toprak örneğinin % 6’nda entomopatojen izolatına rastlanmıştır. Bu izolatların
altı tanesinin moleküler analizler sonucunda, S. carpocapsae, S. feltiae,
S. weiseri, türlerine ait olduğu
tespit edilmiştir. Moleküler olarak tanımlanamayan diğer izolatların morfolojik
gözlemlere göre üç tanesinin Steinernema,
ikisinin ise Heterorhabditis izolatı
olduğu görülmüştür. Nematod bulunan toprak örneklerinin tınlı, killi-tınlı ve
kumlu-tınlı yapıda olduğu, toprak pH’sının 4.68 ile 7.41 arasında değiştiği
görülmüştür. Steinernema türlerinin hepsi fındık, ceviz, kavak, mısır, domates,
fasulye bulunan tarım alanlarından, Heterorhabditler ise orman zemininden izole
edilmiştir. Çalışmada yalnızca Düzce ve Bolu illerinden entomopatojen nematod
elde edilebilmiştir. Şimdiye kadar İç Anadolu ve Ege bölgelerinden bulunmuş
olan S. weiseri’ye ilk defa Karadeniz
bölgesinde de rastlanmıştır. 

Anahtar Kelimeler

Batı Karadeniz, Entomopatojen nematod, Steinernema

Diversity and distribution of entomopathogenic nematodes (steinernematidae and heterorhabditidae) in Blacksea Region

Öz

Diversity and distribution of entomopathogenic
nematodes in the families Steinernematidae and Heterorhabditidae were assessed
throughout a survey in Western Black Sea Region include Düzce, Bolu, Karabük
and Zonguldak province between 2013 and 2015. Six percent of 183 soil samples
were positive for presence of entomopathogenic nematode. According to molecular
analyses, the isolates were identified as S. carpocapsae, S. feltiae,
S. weiseri. The rest of isolates
which can not be described with molecular identification methods were
characterized as three Steinernema
and two Heterorhabditis. Soils of the
positive sites were classified as loam, sandy-loam and clay-loam and pH ranged
from 4.68 to 7.41. The Steinernematids were isolated from agricultural fields
include hazelnut, valnut, poplar, corn, tomato, bean, and Heterorhadits were
from forest.  Entomopathogenic nematodes
could be isolated only Duzce and Bolu province. And S.weiseri was isolated first time from Black Sea Region.

Anahtar Kelimeler

Insect pathogen, Nematode, Biological control

Kaynakça

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