Ultrastructure of Rhizobium-induced infection threads in clover root hairs.

AUTOR(ES)

Napoli, C A

RESUMO

Ultrastructural studies of Rhizobium-induced infection threads in clover root hairs show that the infection thread is initiated by an invagination process. Root hair wall growth is redirected at a localized point, resulting in the formation of an open pore. There is no direct penetration through the wall, and the bacteria remain extracellular within the root hair.

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