Comparative root anatomy of Duchesnea indica, Fragaria vesca and Potentilla tucumanensis (Rosaceae) in the province of Tucumán, Argentina

ALBORNOZ, PATRICIA LILIANA; ARIAS, MARTA EUGENIA; CASTAGNARO, ATILIO PEDRO; DIAZ RICCI, JUAN CARLOS

ADANSONIA

Publicantions Scientifiques du Muséum National d'Histoire Naturelle

Lugar: Paris; Año: 2007 vol. 29 p. 255 - 267

1280-8571

In this work we report the morphological and anatomical characterization of the primary and secondary structures of Duchesnea indica, Fragaria vesca and Potentilla tucumanensis root systems. The three species show a main tap-root with a variable branching pattern. Mother plants of F. vesca present seminal roots with a primary structure of the diarch type, a secondary one with polyderm and adventitious roots from diarch to pentarch stele. Mother plants of D. indica and P. tucumanensis do not form adventitious roots, the primary structure is diarch and the secondary without polyderm. Daughter plants of D. indica and F. vesca form adventitious roots with variable stele from diarch to polyarch. Tracheids were only observed in F. vesca and P. tucumanensis. Our results show that the number of protoxylem poles, the occurrence of tracheids and polyderm constitute a valuable diagnostic character for the identification of these species.