INVESTIGADORES
PONSSA Maria Laura
artículos
Título:
Frog tendon structure and its relationship with locomotor modes
Autor/es:
ABDALA, VIRGINIA; PONSSA, MARÍA LAURA; TULLI, MARÍA JOSÉ; FABRE, ANNE-CLAIRE; HERREL, ANTHONY
Revista:
JOURNAL OF MORPHOLOGY
Editorial:
WILEY-LISS, DIV JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2018
ISSN:
0362-2525
Resumen:
Tendon collagen fibrils are the basic force-transmitting units of the tendon. Yet, surprisingly little isknown about the diversity in tendon anatomy and ultrastructure, and the possible relationships between this diversity and locomotor modes utilized. Our main objectives were to investigate: (a)the ultra-structural anatomy of the tendons in the digits of frogs; (b) the diversity of collagen fibril diameters across frogs with different locomotor modes; (c) the relationship between morphology,as expressed by the morphology of collagen fibrils and tendons, and locomotor modes. To assess the relationship between morphology and the locomotor modes of the sampled taxa we performeda principal component analysis considering body length, fibrillar cross sectional area (CSA) and tendon CSA. A MANOVA showed that differences between species with different locomotor modes were significant with collagen fibril diameter being the discriminating factor. Overall, our data related the greatest collagen fibril diameter to the most demanding locomotor modes, conversely,the smallest collagen fibril CSA and the highest tendon CSA were observed in animals showing a hopping locomotion requiring likely little absorption of landing forces given the short jump distances.
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