hypsupportgliatable
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EPITHELIAL SYSTEM - Glia Table

Sheath cell Lineage Socket Cell Lineage Associated neurons Remarks Schematic rendition

ADEshL


ADEshR

ABarppaaaa


ABarpppaaa

ADEsoL


ADEsoR

H2 aa L
(ABarppaaapaa)


H2 aa R
(ABarpppaapaa)

ADEL


ADER

Components of anterior deirid sensilla

AMshL

 

 

AMshR

ABplaapaapp

 

 

ABpraapaapp

AMsoL

 

 

AMsoR

ABplpaapapa

 

 

ABprpaapapa

ADFL, ADLL, AFDL*, ASEL, ASGL, ASHL, ASIL, ASJL, ASKL, AWAL**, AWBL**, AWCL**

 

ADFR, ADLR, AFDR*, ASER, ASGR, ASHR, ASIR, ASJR, ASKR, AWAR**, AWBR**, AWCR**

Components of amphid sensilla

*The AFD neuron is embedded in the sheath but not associated with the amphid pore

**The cilia of these neurons are enclosed by the sheath cell and not open to outside

See Amphid image gallery

ref.1

CEPshDL


CEPshDR


CEPshVL


CEPshVR

ABarpaaaapp


ABarpaaapap


ABplpaaapap


ABprpaaapap

CEPsoDL


CEPsoDR


CEPsoVL


CEPsoVR

ABalapapppp


ABalapppppp


ABalppaappp


ABalaapappp

CEPDL, also CEMDL in male


CEPDR, also CEMDR in male


CEPVL, also CEMVL in male


CEPVR, also CEMVR in male

Components of cephalic sensilla

In males, sensory endings of CEM neurons are also found within the cephalic sensilla. CEM neurons open to the outside through a small papilla (See Ward et al, 1975 Fig. 33)

See CEP image gallery

ref.2

ILshDL


ILshDR


ILshL


ILshR


ILshVL


ILshVR

ABalaaaparr


ABalaaappll


ABalaaaalpp


ABalaapaapp


ABalppapaap


ABarapppaap

ILsoDL


ILsoDR


ILsoL


ILsoR


ILsoVL


ILsoVR

ABplaapaaap


ABpraapaaap


ABalaaapall


ABalaaapprr


ABalppapapp


ABarapppapp

IL1DL, IL2DL


IL1DR, IL2DR


IL1L, IL2L


IL1R, IL2R


IL1VL, IL2VL


IL1VR, IL2VR

Components of inner labial sensilla

ref.2

OLLshL


OLLshR

ABalpppaapd


ABpraaaaapd

OLLsoL


OLLsoR

ABalapaaapp


AB alappappp

OLLL


OLLR

Components of outer labial lateral sensilla See OLQ schematic below. Note however, OLL's are not associated with any CEP ending

OLQshDL


OLQshDR


OLQshVL


OLQshVR

ABarpaaaapa


ABarpaaapaa


ABalpppaaap


ABpraaaaaap

OLQsoDL


OLQsoDR


OLQsoVL


OLQsoVR

AB arpaaaaal


AB arpaaaaar


AB alppaaapp


AB alaappapp

OLQDL


OLQDR


OLQVL


OLQVR

Components of outer labial dorsal and ventral quadrant sensilla

ref.2

PDEshL


PDEshR

V5 papp L


V5 papp R

PDEsoL


PDEsoR

V5 papa L


V5 papa R

PDEL


PDER

Components of posterior deirid sensilla  

PHshL

 

PHshR

ABplpppapaa

 

ABprpppapaa

PHso1L
PHso2L

PHso1R
PHso2R

T paa L
T pap L

T paaR
T papR

PHAL, PHBL, PQR

 

PHAR, PHBR

Components of phasmids

T cell and its daughters play a temporary role as phasmid socket cell in early larval life

PHso2L is invaginated by the ciliated ending of PQR near the base of the left phasmid and provides wrapping of this neuron more posteriorly (Hall and Russell, 1991)

See Phasmid image gallery

ref.3

Male specific sensilla
HOsh P1O ppppp HOso P1O ppaa HOA, HOB, PVX

Components of hook sensillum

P10.papp, P11.ppp, P11.ppap and P12.pa are also part of the sensillum

ref.3

PCshL


PCshR

Y plppv


Y prppv

PCsoL


PCsoR

Y plap


Y prap

PCAL, PCBL, PCCL


PCAR, PCBR, PCCR

Components of postcloacal sensilla in male

PChL and PChR hypodermal cells are also part of these sensilla

PCCL/R have striated rootlets but lack basal bodies

ref.3

SPshDL
SPshVL

 

SPshDR
SPshVR

B alpapap
B a(l/r)aaldp

 

B arpapap
B a(l/r)aardp

SPso1L
SPso2L
SPso3L
SPso4L


SPso1R

SPso2R

SPso3R
SPso4R

B a(l/r)pppl
B a(l/r)aald
B a(l/r)aalv
B alpapp


B a(l/r)pppr

B a(l/r)aard

B a(l/r)aarv
B arpapp

SPDL , SPVL

 

SPDR, SPVR

Components of male copulatory spicules

In the adult, in each spicule, the 4 socket cells become syncytial as do the two sheath cells.

SPCL/R, a pair of motor neurons, are also associated with the spicules and innervate spicule protractor muscles. Each of SPCL/R also has a sensory ending with a striated rootlet and is attached to the muscle over the base of the spicule by hemi-adherens junctions; hence they can be proprioceptive. SPCL/R do not have basal bodies.

Spicule socket cells express dopamine synthesis rate-limiting enzyme CAT-2 (Lints R. and Emmons S.W. 1999). Socket cells are essential for spicule elongation and formation of spicule cuticle during male spicule morphogenesis whereas spicule neurons and sheath cells are dispensible for spicule morphogenesis (Jiang L. I. and Sternberg P. W. 1999).

ref.3

Male sensory ray structural cells

(joint sheath and socket function)

Lineage Associated neurons Remarks Schematic rendition
R1st L/R V5 (L/R) pppppapp R1A L/R, R1B L/R RnA has no distinct basal body but a long striated rootlet. RnB projects to the exterior and contains a basal body. RnA typically lies to one side of the channel and forms desmosomes to the structural cell more distally than does RnB.

ref.3

R2st L/R V6 (L/R) papapapp R2A L/R, R2B L/R
R3st L/R V6 (L/R) papppapp R3A L/R , R3B L/R
R4st L/R V6 (L/R) pppapapp R4A L/R , R4B L/R
R5st L/R V6 (L/R) pppppapp R5A L/R , R5B L/R
R6st L/R V6 (L/R) ppppaapp R6A L/R , R6B L/R
R7st L/R T (L/R) apappapp R7A L/R , R7B L/R
R8st L/R T (L/R) appaaapp R8A L/R , R8B L/R
R9st L/R T (L/R) appapapp R9A L/R , R9B L/R

References:

1- Mutant sensory cilia in the nematode C. elegans. L.A. Perkins et al. Dev. Biol. (1986) 117:456-487

2- Electron microscopical reconstruction of the anterior sensory anatomy of C. elegans. S. Ward et al. J. Comp. Neurol. (1975) 160:313-338

3- C. elegans male postembryonic development of nongonadal structures. J. Sulston et al. Dev Biol. (1980) 78:542-576

4- The nerve ring of the nematode C. elegans. R. W. Ware et al. J. Comp. Neurol. 162:71-110

 


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