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20250210064114.0 |
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231223s1983 xx ||||| 00| ||eng c |
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|a pubmed25n0624.xml
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|a (DE-627)NLM187171394
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|a (NLM)19295804
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Inserra, R N
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Development of the False Root-knot Nematode, Nacobbus aberrans, on Sugarbeet
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| 264 |
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|c 1983
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 14.07.2011
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|a Date Revised 20.10.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The duration of the embryogenic development of Nacobbus aberrans (= N. batatiformis) took 9-10 days at 25 C and 51 days at 15 C. The J molted in the egg; hence the Je emerged from the egg. The effect of distilled water attd root leachates of kochia and sugarbeet was investigated at 5, 10, 15, 20, and 25 C. Root leachates did not significantly affect the percent of cumulative hatch of eggs, but temperature did significantly affect emergence of juveniles (p = 0.05). Less than 1, 5, and 20% of eggs hatched at 5, 10, and 15 C, respectively. The percent of cumulative hatch at 20 C was four times greater than at 15 C, while the highest percentage of juveniles emerged at 25 C. The duration of postembryogenic development from J inoculation until the appearance of mature females with egg masses took 38 days, and the life cycle from egg to egg was completed in 48 days at 25 C. All immature stages, young females and males were migratory endoparasites. Young females were able to leave the root swellings, where they developed from juvenile stages, and re-enter the root, where they formed a true gall and became sedentary. Thirty days after inoculation with J nematodes, specimens were detected in root tissues at 10, 15, 20, 25, and 30 C, hut not at 5 C. Five days after inoculation at 23 C ( +/- 2 C), juveniles had penetrated the roots and caused slight swellings of the tip and axis of sugarbeet feeder roots. Large cavities extended from the cortical parenchyma to the periphery of the stelar area, and 50 % of the central cylinder was destroyed 25 days after inoculation at 23 C. No syncytia formation were detected in the sugarbeet root swellings infected with juveniles. Syncytia were associated only with adult females; hyperplasia, abnormal proliferation of lateral roots, and asymmetry of root structure were additional anatomical changes induced by adult females. Only very smooth annules but no cuticular ornamentations were noted by SEM on the perineal area of adult females
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| 650 |
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|a Journal Article
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| 650 |
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|a egg hatch
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| 650 |
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4 |
|a embryogenesis
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| 650 |
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4 |
|a histopathology
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| 650 |
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|a life cycle
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| 650 |
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4 |
|a morphology
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| 650 |
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4 |
|a postembryogenesis
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| 650 |
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4 |
|a root leachates
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| 700 |
1 |
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|a Vovlas, N
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Griffin, G D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Anderson, J L
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Journal of nematology
|d 1969
|g 15(1983), 2 vom: 16. Apr., Seite 288-96
|w (DE-627)NLM098196421
|x 0022-300X
|7 nnas
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| 773 |
1 |
8 |
|g volume:15
|g year:1983
|g number:2
|g day:16
|g month:04
|g pages:288-96
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| 912 |
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|a AR
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| 952 |
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|d 15
|j 1983
|e 2
|b 16
|c 04
|h 288-96
|