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(American Journal of Botany. 2002;89:1361-1372.)
© 2002 Botanical Society of America, Inc.

Invited Special Paper

The formation of adventitious roots on root axes is a widespread occurrence in field-grown dicotyledonous plants1

Dominick J. Paolillo Jr2,4 and Richard W. Zobel3

2Department of Plant Biology, 228 Plant Science, Cornell University, Ithaca, New York 14853 USA; 3United States Department of Agriculture, Agricultural Research Service, Appalachian Farming Systems Research Center, 1224 Airport Road, Beaver, West Virginia 25813 USA

The formation of adventitious branch roots in the secondary tissues of parental root axes is a widespread and frequent occurrence under field conditions. Anatomical features diagnostic for the recognition of adventitious roots were utilized to confirm the occurrence of adventitious roots on roots of 22 species from 12 families in nine orders of dicotyledonous plants. Adventitious roots may play an important role in generating the population of fine roots as part of root turnover in the soil.

Key Words: adventitious roots • branching • root turnover • roots




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D. J. Paolillo Jr. and N. L. Bassuk
On the occurrence of adventitious branch roots on root axes of trees
Am. J. Botany, May 1, 2005; 92(5): 802 - 809.
[Abstract] [Full Text] [PDF]


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