Scanning electron microscopic observation of lingual papillae in a Bengal tiger (Panthera tigris tigris)

다국어 초록 (Multilingual Abstract)

The morphology of the lingual papillae in a female Bengal tiger (Panthera tigris tigris) was examined by scanning elec- tron microscopy (SEM). The tongue was 22.3 cm in length and 7.1 cm in width. Numerous filiform papillae were dis- tributed over the entire dorsal surface of the tongue. SEM examination of the tongue revealed two types of mechanical papillae, i.e. filiform and conical papilla, and two types of gustatory papillae, i.e. fungiform and vallate papilla, on the dorsal surface of the tongue. Each filiform papilla consisted of one primary papilla and several secondary papillae. The filiform papillae on the anterior part of the tongue were divided into one primary and 6~14 secondary papillae. Un- like other mammalians, however, secondary papillae in the mid-part of the tongue showed pineal-like papillae. In the posterior part of the tongue, secondary papillae were rare or absent. Fungiform papillae were surrounded by filiform papillae and densely distributed on the lingual surface.
There were two vallate papillae on the borderline between the lingual body and root of the tongue. A vallate papilla contained two secondary papillae inside the grooves. Coni- cal papillae were located in the area of the vallate papillae and covered the posterior part of the tongue root. No foliate papillae were seen on both margins of the posterior part of the tongue. Our results indicate that the structure on the lin- gual papillae of the Bengal tiger is somewhat different from that of other mammals.

참고문헌 (Reference)

1 Kobayashi K., "Three-dimensional structures of the connective tissue papillae of the tongue in newborn dogs" 50 : 347-357, 1987

2 Jackowiak H., "The scanning electron microscopic study of lingual papillae in the silver fox(Vulpes vulpes fulva, Desmarest, 1820)" 186 : 179-183, 2004

3 Kobayashi K., "Stereo architecture of the connective tissue cores of the lingual papillae in the treeshrew(Tupaia glis)" 186 : 511-518, 1992

4 Iwasaki S., "Scanning-electronmicroscopic study of the dorsal lingual surface of the squirrel monkey" 132 : 225-229, 1988

5 Iwasaki S., "Scanning electron microscopy of the lingual dorsal surface of the beagle dog" 62 : 1-13, 1985

6 Qayyum MA., "Scanning electron microscopic study of the lingual papillae of the one humped camel, Camelus dromedaries" 160 : 21-26, 1988

7 Emura S., "SEM study on the dorsal lingual surface of the flying squirrel, Petaurista leucogenys" 181 : 495-498, 1999

8 Doran GA., "Review of the evolution and physiology of the mammalian tongue" 91 : 118-129, 1975

9 Atoji Y., "Morphology of the tongue of a male formosan serow(Capricornis crispus swinhoei)" 27 : 17-19, 1998

10 Emura S., "Morphology of the dorsal lingual papillae in the newborn panther and Asian black bear" 78 : 173-177, 2001

11 Agungpriyono S., "Morphology of the dorsal lingual papillae in the lesser mouse deer, Tragulus javanicus" 187 : 635-640, 1995

12 Emura S., "Morphology of the dorsal lingual papillae in the bush dog(Speothos venaticus)" 77 : 137-141, 2000

13 Lee HS., "Morphological study on the tongue of Korean native goat" 36 : 225-264, 1996

14 Pastor JF., "Morphological study of the lingual papillae of the giant panda(Ailuropoda melanoleuca)by scanning electron microscopy" 212 : 99-105, 2008

15 Iwasaki S., "Fine structure of the filiform papillar of beagle dogs" 201 : 235-242, 1989

16 Iwasaki S., "Fine structure of the dorsal lingual epithelium of the domestic, newborn kitten, Felis catus" 174 : 293-300, 1992

17 Boshell JL., "Filiform papillae of cat tongue" 114 : 97-105, 1982

18 Iwasaki S., "Evolution of the structure and function of the vertebrate tongue" 20 : 1-13, 2002

19 Chamorro CA., "Comparative study of the lingual papillae of cats(Felis catus)and rabbits(Oryctolagus cuniculus)using the scanning electronic microscope" 16 : 37-47, 1987

20 Kobayashi K., "Comparative studies on the stereo architecture of the connective tissue papillae in some mammalian tongues" 295 : 303-308, 1989

21 de Paz Cabello P., "Comparative scanning electron-microscopic study of the lingual papillae in two species of domestic mammals(Equus caballus and Bos taurus). II. Mechanical papillae" 132 : 120-123, 1988

22 Chamorro CA., "Comparative scanning electron-microscopic study of the lingual papillae in two species of domestic mammals(Equus caballus and Bos taurus). I. Gustatory papillae" 125 : 83-87, 1986