Abstract
Histological responses to Meloidogyne incognita infection in Rhizobium nodules of clover, horsebean, lupine, and pea were investigated. The formation of giant cells in vascular bundles of nodules and roots, and the basal connection of the nodule, were usually associated with abnormal xylem and/or deformed xylem strands. However, giant cells did not disturb or prevent the development of nodular tissues. Areas in which galls formed, wall thickness of giant cells, and number of giant cells around the nematode head varied with plant species. Ranking by gall size and giant-cell wall thickness was horsebean > lupine and pea > clover. The multinucleate condition in giant cells resulted from repeated mitoses without subsequent cytokinesis. The resulting nuclei agglomerated in irregularly shaped masses in some giant cells.
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Claims 6
Claim · model-written summary
Giant cells in nodule and root vascular bundles were usually associated with abnormal or deformed xylem.
- Taxon
- Four Leguminous Cropst0
- Organ / stage
- nodules and rootse0
- Outcome
- abnormal xylem and/or deformed xylem strandse0
Not reportedDirection
Verbatim
e0“The formation of giant cells in vascular bundles of nodules and roots, and the basal connection of the nodule, were usually associated with abnormal xylem and/or deformed xylem strands.”
t0“Four Leguminous Crops”
Claim · model-written summary
Giant cells did not prevent development of nodular tissues.
Verbatim
e0“giant cells did not disturb or prevent the development of nodular tissues.”
t0“Four Leguminous Crops”
Claim · model-written summary
Gall locations, giant cell wall thickness and giant cell numbers differed among plant species.
Verbatim
e0“Areas in which galls formed, wall thickness of giant cells, and number of giant cells around the nematode head varied with plant species.”
t0“Four Leguminous Crops”
Claim · model-written summary
Horsebean had the greatest gall size and giant cell wall thickness, followed by lupine and pea, then clover.
- Taxon
- horsebean
Vicia fabae0 - Outcome
- gall size and giant-cell wall thicknesse0
- Direction
- horsebean > lupine and pea > clovere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ranking by gall size and giant-cell wall thickness was horsebean > lupine and pea > clover.”
Claim · model-written summary
Repeated mitoses without cytokinesis produced multinucleate giant cells.
Verbatim
e0“The multinucleate condition in giant cells resulted from repeated mitoses without subsequent cytokinesis.”
t0“Four Leguminous Crops”
Claim · model-written summary
Nuclei formed irregular masses in some giant cells.
Verbatim
e0“The resulting nuclei agglomerated in irregularly shaped masses in some giant cells.”
t0“Four Leguminous Crops”