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排序方式: 共有90条查询结果,搜索用时 15 毫秒
1.
Alper J 《Science (New York, N.Y.)》1994,265(5180):1924-1925
2.
Alper J 《Science (New York, N.Y.)》1992,255(5049):1206-1207
3.
Molecular identification methods are widely used for the classification of organisms worldwide. Entomopathogenic nematodes
are the most often isolated insect parasitic nematodes in the tropical and subtropical regions. In our investigation, PCR-RFLP
(Polymerase Chain Reaction — Restriction Fragment Length Polymorphism) of the ITS region (Internal Transcribed Spacer) on
the ribosomal (r) DNA of three entomopathogenic nematodes isolated from Ankara, Turkey, was analyzed for identification. The
ITS region of rDNA was amplified by PCR and then digested with the following nine restriction enzymes: Alu I, Dde I, Hae III,
Hha I, Hind III, Hinf I, Hpa II, Rsa I and Sau 3AI. The amplified and restricted sequences of the ITS regions were separated
by agarose gel electrophoresis and the RFLP patterns of these three species were shown in this study. According to our results,
these species were identified asSteinernema feltiae, Steinernema carpocapsae andHeterorhabditis bacteriophora.
http://www.phytoparasitica.org posting Nov. 4, 2005. 相似文献
4.
Nimet Sema Gencer Nabi Alper Kumral H. Ozkan Sivritepe Melis Seidi Hilal Susurluk Bulent Senturk 《Phytoparasitica》2009,37(3):217-224
The spider mites Tetranychus urticae Koch and Panonychus ulmi (Koch) (Tetranychidae) cause severe economic losses to vegetable farms and deciduous fruit orchards in Turkey. One of their
predators, the ladybird beetle Stethorus gilvifrons (Muls.) (Col., Coccinellidae), aggregates on mite-infested patches of plants. The present study assessed whether there is
a role for herbivore-induced plant volatiles (HIPVs) and/or odors emitted directly from these two mite species in the aggregative
response of ladybird beetles. The olfactory responses of the predator females to volatiles from T. urticae- and/or P. ulmi-infested sweet pepper (four cultivars, viz. ‘Demre’, ‘Yalova Carliston’, ‘Kandil Dolma’ and ‘Yag Biberi’), kidney bean (cv.
‘Barbunya’) and apple (M9 rootstock) were investigated using a two-choice olfactometer. Our results showed that HIPVs emitted
from both T. urticae- and P. ulmi-infested plants significantly attracted S. gilvifrons adults for all plants except the sweet pepper cv. Yag Biberi. In addition, it was found that volatiles from apple plants
infested by T. urticae and, especially, P. ulmi are more attractive for S. gilvifrons females than those emitted by other infested plants. The results also suggest that the odors of T. urticae adults and their products might influence the attraction of S. gilvifrons females. 相似文献
5.
Alper J 《Science (New York, N.Y.)》1991,252(5005):508-509
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Alper J 《Science (New York, N.Y.)》2003,300(5620):729-730
10.
Alper J 《Science (New York, N.Y.)》2003,299(5611):1303-1305