About the Applicability of Bone and Cartilage Acid-free Staining for Anura

Abstract

The article describes the first use of acid-free alcian-alizarin staining for tailless amphibians in comparison with the standard method of acid staining on the example of the moor frog. The acid-free protocol is applicable for Anura and it has a number of advantages, such as the absence of decalcification, safety for the researcher and
others. However, this method also has limitations, such as the binding of alcian blue with soft tissues.

References
[1] Wassersug RJ: A procedure for differential staining of cartilage and bone in whole formalin-fixed vertebrates. Stain. Techn. 1976; 51(2): 131–134.

[2] Dingerkus G, Uhler LD: Enzyme clearing of alcian blue stained whole small vertebrates for demonstration of cartilage. Stain. Techn. 1977; 52(4): 229–232.

[3] Taylor WR, Van Dyke GC: Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage study. Cybium. 1985; 9(2): 107–119.

[4] Klymkowsky MW, Hanken J: Whole-mount staining of Xenopus and other vertebrates. In: Wilson L, Kay BK, Peng HB, eds. Methods in cell biology: Vol. 36. Xenopus laevis: Practical uses in cell and molecular biology. San Diego: Academic Press; 1991: 419–441.

[5] Walker MB, Kimmel CB: A two-color acid-free cartilage and bone stain for zebrafish larvae. Biotech. Histochem. 2007; 82(1): 23–28.

[6] Yamazaki Y, Yuguchi M, Kubot S, Isokawa K: Whole-mount bone and cartilage staining of chick embryos with minimal decalcification. Biotech. Histochem. 2011; 86(5): 351–358.

[7] Sanger TJ, Revell LJ, Gibson-Brown JJ, Losos JB: Repeated modification of early limb morphogenesis programs underlies the convergence of relative limb length in Anolis lizards. P. R. Soc. B. 2012; 279: 739–748.

[8] Diaz Jr RE, Trainor PA: Hand/foot splitting and the ‘re-evolution’ of mesopodial skeletal elements during the evolution and radiation of chameleons. BMC Evol. Biol. 2015; 15: 184.

[9] Gosner KL: A simplified table for staging anuran embryos and larvae with notes on identification. Herpetologica. 1960; 16(3): 183–190.