Dynamics of the Nuclear Complement of Giant Cells Induced by Meloidogyne incognita

The total numbers of nuclei in giant cells induced by Meloidogyne incognita in pea, lettuce, tomato, and broad bean were determined. Mature giant cells from pea had the most nuclei per giant cell with a mean of 59 +/- 23, lettuce had the fewest with 26 +/- 16, and tomato and broad bean were intermed...

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Veröffentlicht in:Journal of nematology. - 1969. - 25(1993), 3 vom: 10. Sept., Seite 416-21
1. Verfasser: Starr, J L (VerfasserIn)
Format: Aufsatz
Sprache:English
Veröffentlicht: 1993
Zugriff auf das übergeordnete Werk:Journal of nematology
Schlagworte:Journal Article Lactuca sativa Lycopersicon esculentum Meloidogyne incognita Pisum sativum Vicia faba broad bean chromosomes giant cell lettuce mehr... nematode nucleus root-knot nematode tomato
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245 1 0 |a Dynamics of the Nuclear Complement of Giant Cells Induced by Meloidogyne incognita 
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520 |a The total numbers of nuclei in giant cells induced by Meloidogyne incognita in pea, lettuce, tomato, and broad bean were determined. Mature giant cells from pea had the most nuclei per giant cell with a mean of 59 +/- 23, lettuce had the fewest with 26 +/- 16, and tomato and broad bean were intermediate. The rate of increase in numbers of nuclei for all plant species was greatest during the first 7 days after inoculation. No mitotic activity was observed in giant cells associated with adult nematodes. Number of nuclei per giant cell doubled each day during the period of greatest mitotic activity, but number of total chromosomes per giant cell increased 20-fold per day at the same time. The hypothesis is presented that factor(s) responsible for the polyploid, mulfinucleate condition characteristic of giant cells may be different from factor(s) responsible for aneuploid numbers of chromosome per nucleus or for nuclear aberrations such as the presence of linked nuclei 
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650 4 |a tomato 
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