Characterization of Root Hair Cell Walls as Potential Barriers to the Infection of Plants by Rhizobia | Zendy

Andrew J. Mort | Zendy; Paul B. Grover | Zendy

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Characterization of Root Hair Cell Walls as Potential Barriers to the Infection of Plants by Rhizobia

Author(s) -

Andrew J. Mort,

Paul B. Grover

Publication year - 1988

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.86.2.638

Subject(s) - root hair , rhizobia , biology , botany , sugar , cell wall , epidermis (zoology) , polysaccharide , dry weight , symbiosis , bacteria , anatomy , food science , biochemistry , genetics , gene

The sugar compositions of root hairs of a variety of plant species were determined. Root hairs of legumes had very similar compositions, whereas those of different families varied widely. Only approximately 50% of the weight of the root hairs of legumes could be accounted for by sugar. Up to 80% of the weight of root hairs from other sources could be accounted for by sugars. Protein made up 5 to 8% of the weight of root hairs of dicots but only 1.3% in corn. Comparison between cell walls from various root cell types within legumes showed that the polysaccharide compositions of root epidermal, root hair, and root cortical cells were very similar. Cotton root hairs were markedly different from walls of mesophyll and epidermal cells of cotyledons from cotton.

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