3 : 73 li rus hom arus ( Crustacea) (De2 capoda) ( Reptantia) ( Palinuridae) Panuli rus White [2 ],,,, [3 12 ],,,, 1 111, 25 35cm, g, 6 1h,,,,,

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1 J OU RNAL OF TROPICAL OCEANO GRA P H Y Vol1 27,No. 3 May, ,,, (, ) : Panuli rus homaru, ;,,, : Panuli rus homarus ; ; ; : Q174 ; S917 : A : (2008) Histological observation on digestive system of Pa nuli r us homa r u with light and scanning electron microscopy L I Chang2ling, CAO Fu2jun, HUAN G Xiang2hu, L IU Chu2wu ( Fisheries College, Guangdong Ocean University, Zhanjiang , China) Abstract : The histology of digestive system of Panuli rus hom aru was st udied wit h light micro scope and scanning elect ro n micro scope ( SEM). The result s by light micro scop y showed t hat t he digestive system consisted of digestive tract and hepatopancreas. The wall of t he digestive tract consisted of mucous layer, connective tissue, muscular layer and outer membrane. There was chitin in t he surface of mucous layer ex2 cept t he mid2gut. There were glands in t he t unica submuco sa of esop hagus, mid2gut and hindgut. The muscular coat of t he whole digestive tract wall consisted of striated muscle and it s arrangement was loose. The small blind t ubules of hepatopancreas were f unctional and struct ural unit s in the hepatopancreas which were t he main digestive glands. These cells could be divided into four types : B2cell, F2cell, R2cell and E2 cell. The ultrastruct ural characteristics from SEM observation were showed that t he multipolar folds and ridges in t he surface of epithelium mucosa of each segment of t he digestive tract wall took shape into differ2 ent2sized and polymorp holo gic multigrade wrinkles which co uld add t he absorptive area and co nt ractive f unction. The vertical wrinkles especially t he transverse wrinkles on t hem were remarkable in t he whole intestines. The developed lamina cilia in the surface of epithelium mucosa of t he whole digestive tract ex2 cept midgut and intestinal bulb could p ush t he food forward and promote digestion, and t he microvilli in t he midgut and intestinal bulb could increase the surface area of absorption. Key words : Panuli rus hom aru ; digestive system ; histology ; SEM,,,,, [ 1 ] Panu2 : ; : : ( ) : (1964 ),,,,, :, E2mail : edu1cn

2 3 : 73 li rus hom arus ( Crustacea) (De2 capoda) ( Reptantia) ( Palinuridae) Panuli rus White [2 ],,,, [3 12 ],,,, 1 111, 25 35cm, g, 6 1h,,,,,,, 8 8 3mm 5mm 112 Bouin, [13 ], 5 7 m, H2E ; Olym2 p us Carnoy,, [14 ] : 2 ( HgBpB) ; 2Schiff N H2 ; Million ; DMAB2 ; Feul2 gen DNA, 60 1mol L - 1 HCl mol L - 1 p H 714 ( PBS), 4 3 % ld ; 1 %OsO4 4 2h ;, HCP - 2 IB15 Philip sxl30 [15 ], 20kV ( 1a),,, 419 % ( 1a, b) ( 1b),,, 719 % ;, 2 ;,, ;,,, ;, 513 % ;,,,,,,,,, 4117 %,,, 419 %,, 3513 % 212,,, ( 1c),,,,,,,, ;,, ( 1d) ; ( 1e) ;, ( 2a),,, ( 1b), 12,,,,,, ( 2b),,

3 74 27,, 1 a.,,,,,,, ; b.,,,,,,,, ; c., 113 ; d., 113 ; e., X113 ; L ; C ; Ep ; CT ; SM ; RM ; M Fig11 Anatomical morphology of digestive tract and stomach of Panuli rus homaru, 12,,,, ( 2c, d) 213, ( 2e),, ( 2f ),, (B2 ), H1 E, ( R2 ) ( F2 ) ( E2 ) 4 ( 2f, g) B2,,,, 80 % 90 %, R2,,,, 1-2,, B2, R2 F2 R2 B2,,,,,

4 3 : 75 2 a., 113 ; b., 113 ; c. ; 45 : d.,, 452 ; e., 452 ; f., 1131 ; g., 1131 : L ; C ; Ep ; CT ; G ; SM ; S ; SB ; T H ; E ; F ; R ; B ; BV Fig12 Anatomical morphology of digestive tract and stomach of Panuli rus homaru E2, 3,,,,, H1 E,, B2 F2 R2, E, , 4, F2 E2, N H2, 4, 1 Tab11 Histochemistry of hepatopancreas of Panulirus homaru B2 R2 F2 E N H DNA DNA : +, -, + +, + + +, 4, 215, 4,, DNA 4, DNA, ;,, ( 3a) ;

5 76 27, ( 3b),,, ( 3c), ( 3d) ;, ( 3e),,, ( 3f), ( 3g) ;, ( 3h), ; ( 3i) ;,, ( 3j) ; ( 3k) 3 a. ; b. ; c. ; d. ; e. ; f. ; g. ; h. ; i. ; j. ; k. ; l. ; m. ; n. : o. Fig13 Anatomical morphology of digestive tract and stomach of Panuli ras homaru

6 3 : 77 12,,, ( 3l) ; ( 3m) ; ( 3n),,,,, ( 3o) 3,,,,, [ 16 ],,,,,,, [3-12 ],,,,,, [3-12 ],, 3, [11 ] 4, X, [10 ] [8 ],, ;,,, [5 ] [7 ],,,,,, [5 ], [6 ], [7 ], [8 ], [10 ], [11 ], [12 ],,, [ 9 ],, 12,, 6 [7 12 ],, [5 ], [6 ], [7 ], [8 ], [ 9 ], [5 7,9 10,12 ] [8 ], [7,9 ], [ 5,8 ] [9,10 ],,,,,,,,,,, ;,,,,,,,,,,, [9 ],,,,,, [5-12 ],,, [5,7,11 ],,, [5 ],,,

7 78 27,,, ; [8 ], ; [7 ],,, ;,,, B2 R2 F2 E2 4 [6 ], E2,, ; R2,,, R2 E2, R2 E2,, E2 F2, F2 E2, B2,, R2 F2 : [ 1 ],,,. [ M ]. :, 1996, [ 2 ],. [J ]., 1984, (9) : [ 3 ]. [ M ]. :, 1993, [ 4 ] DELL W, MORIAR T Y D J W. Funtional Aspect of Nutri2 tion and Digestion [ M ] / / Dorot hy E. The Biology of Crustacea. Academic Press, New York. 1983, 5 : [ 5 ],,,. [J ]., 2002, 26 (2) : [ 6 ],,.. ( ), 1994, 17 ( 3) : [ 7 ],,,. [J ]., 1996, 5 (2) : [ 8 ],,. [J ]., 1997, 32 (3) : [ 9 ],,,. [J ]., 1999, 6 (4) : [ 10 ],,. [J ]., 2000, 21 (4) : [ 11 ],,. [J ]., 2003, 27 (4) : [ 12 ],,,. [J ]. ( ), 2002, 26 (1) : [ 13 ]. [ M ]. :, [ 14 ],,,. [ M ]. :, [ 15 ]. [J ]., 1996, 31 (3) : [ 16 ],. [ M ]. :, 1997.

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