Histology of anomalous growth and adventitious roots associated with mainstem girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) on soybean.

Reference Report for IND89012785

Title:	Histology of anomalous growth and adventitious roots associated with mainstem girdling by threecornered alfalfa hopper, Spissistilus festinus (Say) (Homoptera: Membracidae) on soybean.
Authors:	Johnson, M.P., Mueller, A.J., Harris, W.M., Kim, K.S.
Source:	J. Entomol. Sci. 1988, 23(4):333-341
Abstract:	Cell and tissue structure of undamaged soybean, Glycine max (L). Merrill, stem were compared with those from the swollen area immediately above (< 1 cm) three cornered alfalfa hopper, Spissistilus festinus (Say), girdles. Examination of epoxy-resin embedded transverse sections from the swollen stems revealed growth that differed significantly from the normal dicot structure. The anomalous growth consited of vascular bundles scattered in the secondary phloem surrounded by parenchyma cells. Examination of Paraplast embedded transverse and longitudinal sections of adventitious root-like growths arising from or above the swollen hypocotyl area revealed normal root structure

Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA

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