ULTRASTRUCTURE OF WHEAT RHIZOSPHERE

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Abstract
SUMMARY: Ultrathin sections of rhizospheres of wheat roots showed sparse colonization of the root surface by microorganisms in young roots. Older roots at the flowering stage showed considerable development of microorganisms both in the rhizosphere and in the outer cortical cells and cell walls. The invasion of cortical cells was preceded by lysis of the host cell wall, the stages of lysis are illustrated. The spatial relationships between clay aggregates, microorganisms, mucilaginous materials and the root surface are described.