Summary
The DNA content and size of individual nuclei from galls of perennial ryegrass root-tips induced byX. diversicaudatum andL. elongatus were measured. Feeding byX.diversicaudatum increased the DNA content of the nuclei by varying amounts. No regular doubling pattern of the DNA content was discernible. The DNA values varied up to between 32–64C. Generally the size of the nuclei was not increased, although some were larger than control nuclei. The modified nuclei probably have an altered metabolic function, which increases the food value of the gall to the nematode. Some bi-nucleate cells were also observed, which probably result from mitosis without cytokinesis. A preliminary examination of nuclei from galls induced byL. elongatus revealed similar nuclear changes, but no bi-nucleate cells were found.
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Griffiths, B.S., Robertson, W.M. & Trudgill, D.L. Nuclear changes induced by the nematodesXiphinema diversicaudatum andLongidorus elongatus in root-tips of perennial ryegrass,Lolium perenne . Histochem J 14, 719–730 (1982). https://doi.org/10.1007/BF01033621
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DOI: https://doi.org/10.1007/BF01033621