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180726s2018 xx |||||o 00| ||eng c |
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7 |
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|a 10.1016/j.asd.2017.11.002
|2 doi
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|a (ELSEVIER)S1467-8039(17)30112-3
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|a Podsiadło, Elżbieta
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Yeast-like microorganisms in the scale insect Kermes quercus (Insecta, Hemiptera, Coccomorpha: Kermesidae). Newly acquired symbionts?
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| 264 |
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|c 2018transfer abstract
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|a 8
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|a nicht spezifiziert
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|a Scale insects, like other plant sap-consumers, are host to symbiotic microorganisms which provide them with the substances missing from their diet. In contrast to most scale insects, Kermes quercus (Linnaeus) was regarded as asymbiotic. Our histological and ultrastructural observations show that in the body of the feeding stages of K. quercus collected in two locations (Warsaw and Cracow), numerous yeast-like microorganisms occur. These microorganisms were localized in the cytoplasm of fat body cells. The yeast-like microorganisms were observed neither in other organs of the host insect nor in the eggs. These microorganisms did not cause any damage to the structure of the ovaries and the course of oogenesis of the host insect. The females infected by them produced about 1300 larvae. The lack of these microorganisms in the cytoplasm of eggs indicates that they are not transmitted transovarially from mother to offspring. Molecular analyses indicated that the microorganisms which reside in the body of K. quercus are closely related to the entomopathogenic fungi Cordyceps and Ophiocordyceps, which belong to the Sordariomycetes class within the Ascomycota. The role of yeast-like microorganisms to their host insects remains unknown; however, it has been suggested that they may represent newly acquired symbionts.
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|a Scale insects, like other plant sap-consumers, are host to symbiotic microorganisms which provide them with the substances missing from their diet. In contrast to most scale insects, Kermes quercus (Linnaeus) was regarded as asymbiotic. Our histological and ultrastructural observations show that in the body of the feeding stages of K. quercus collected in two locations (Warsaw and Cracow), numerous yeast-like microorganisms occur. These microorganisms were localized in the cytoplasm of fat body cells. The yeast-like microorganisms were observed neither in other organs of the host insect nor in the eggs. These microorganisms did not cause any damage to the structure of the ovaries and the course of oogenesis of the host insect. The females infected by them produced about 1300 larvae. The lack of these microorganisms in the cytoplasm of eggs indicates that they are not transmitted transovarially from mother to offspring. Molecular analyses indicated that the microorganisms which reside in the body of K. quercus are closely related to the entomopathogenic fungi Cordyceps and Ophiocordyceps, which belong to the Sordariomycetes class within the Ascomycota. The role of yeast-like microorganisms to their host insects remains unknown; however, it has been suggested that they may represent newly acquired symbionts.
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| 650 |
|
7 |
|a Kermesidae
|2 Elsevier
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| 650 |
|
7 |
|a Scale insects
|2 Elsevier
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| 650 |
|
7 |
|a Yeast-like microorganisms
|2 Elsevier
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| 650 |
|
7 |
|a Entomopathogens
|2 Elsevier
|
| 700 |
1 |
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|a Michalik, Katarzyna
|4 oth
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| 700 |
1 |
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|a Michalik, Anna
|4 oth
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| 700 |
1 |
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|a Szklarzewicz, Teresa
|4 oth
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| 773 |
0 |
8 |
|i Enthalten in
|n Elsevier Science
|t Ventricular Restraint Improves Outcomes in HF Patients with CRT
|d 2011
|g Amsterdam [u.a.]
|w (DE-627)ELV015921530
|
| 773 |
1 |
8 |
|g volume:47
|g year:2018
|g number:1
|g pages:56-63
|g extent:8
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| 856 |
4 |
0 |
|u https://doi.org/10.1016/j.asd.2017.11.002
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