li~rgeb (iolgi 1)oel.y. I,i~rgc~ viie*~~ol(~s cl(~vc~Iop I I C ; L ~ the (iolgi body and
tnigri~t,~ t,o thc. i ~ l w ~ x
o f t he. c.t-ll : t,hcy cv)nt~i~in i\ soluble s\lbsta~lt.c as well
I L ~
fibrilli~r ini\tcriul whic.11 ~t i1111~ iLS fi)r IIIIII'IIS. ('L'OXILII (~ot~siders tI~i\t
thew Irimop)iilicb cells most rrsc.n~l)hh tl~c. vibc.irolatt.d cc11s of Cionn and
that the V~L(*IIOICA ('Otltiti~l ~ i ~ r l ) o I i ~ d t ' i ~ t ~
~)rot(tin coml~lexcs, anlirio
groups c~ntl itcaid phonphiltimb.
I<'II*. I I. Scl~or~kt~t,i(* tlrt~wi~tg of I$ dell from t , l ~ < t
t,13r11iittt~l r ~ ~ g i r , ~ ~
of tho (Iigt~stiv~! glut111 of
pyuricl trliritlitltl ~howillg tho infol(li11g III' thv l~trx~l ooll ~nc*rrlbrar~~.. (Itr~rlrnw~r frorn
'
I )tvptiI ILIIII l.ovi. l!)ti4.)
Ax well as t lieso cclls, I)oth I"ouquc ( 1959) ant! Dcgail allel Levi ( 1984)
clcnoribt* c.c.lln a t the apcx of the digcstivc rliverticulum which arc1
11on-sccrctory. Tht.so oc*lls artA confined to an apical lobule which projrcts into ~~eighbouring haemolymphatic spaces and tho cclls arch
charsctcrizecl by hitving a (dear c.ytol)lasm and an infolded basal rnemi
n (Fig I I ) Neighborrril~g foltls of the membrane are so clost:
t,ogethcr t hilt id1 the cell inclus~\ms including mitochondria are p\j~\)ecl
c~pically. 'I'hc funrtioti of these c e h is obscurc but the infolding r~f thr.
t)itsal mc~rnbrr~nc~ is similar t o that dc~srribecl by Thoma.; ( 1 9 5 0 ~ ) for
intcstinill c-(4s i ~ n d is oharacteristic~ of t.(.II.; chngagcd in ionic. or osmotic.
rc~gl~lutio~i Howcaver, cclls cngagrtl in rc*gl~latory activities usually haw.
t 811ca mitoc~ho~idrii~, lying brtwcet~ the fol(lac al~tl providing a source of
('llt'rgy.
tnigri~t,~ t,o thc. i ~ l w ~ x
o f t he. c.t-ll : t,hcy cv)nt~i~in i\ soluble s\lbsta~lt.c as well
I L ~
fibrilli~r ini\tcriul whic.11 ~t i1111~ iLS fi)r IIIIII'IIS. ('L'OXILII (~ot~siders tI~i\t
thew Irimop)iilicb cells most rrsc.n~l)hh tl~c. vibc.irolatt.d cc11s of Cionn and
that the V~L(*IIOICA ('Otltiti~l ~ i ~ r l ) o I i ~ d t ' i ~ t ~
~)rot(tin coml~lexcs, anlirio
groups c~ntl itcaid phonphiltimb.
I<'II*. I I. Scl~or~kt~t,i(* tlrt~wi~tg of I$ dell from t , l ~ < t
t,13r11iittt~l r ~ ~ g i r , ~ ~
of tho (Iigt~stiv~! glut111 of
pyuricl trliritlitltl ~howillg tho infol(li11g III' thv l~trx~l ooll ~nc*rrlbrar~~.. (Itr~rlrnw~r frorn
'
I )tvptiI ILIIII l.ovi. l!)ti4.)
Ax well as t lieso cclls, I)oth I"ouquc ( 1959) ant! Dcgail allel Levi ( 1984)
clcnoribt* c.c.lln a t the apcx of the digcstivc rliverticulum which arc1
11on-sccrctory. Tht.so oc*lls artA confined to an apical lobule which projrcts into ~~eighbouring haemolymphatic spaces and tho cclls arch
charsctcrizecl by hitving a (dear c.ytol)lasm and an infolded basal rnemi
n (Fig I I ) Neighborrril~g foltls of the membrane are so clost:
t,ogethcr t hilt id1 the cell inclus~\ms including mitochondria are p\j~\)ecl
c~pically. 'I'hc funrtioti of these c e h is obscurc but the infolding r~f thr.
t)itsal mc~rnbrr~nc~ is similar t o that dc~srribecl by Thoma.; ( 1 9 5 0 ~ ) for
intcstinill c-(4s i ~ n d is oharacteristic~ of t.(.II.; chngagcd in ionic. or osmotic.
rc~gl~lutio~i Howcaver, cclls cngagrtl in rc*gl~latory activities usually haw.
t 811ca mitoc~ho~idrii~, lying brtwcet~ the fol(lac al~tl providing a source of
('llt'rgy.