Ultrastructural study and description of Cystosporogenes deliaradicae n. sp. (microspora, glugeidae), a microsporidian parasite of the cabbage root fly Delia radicum (Linnaeus, 1758) (diptera, anthomyidae)
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Ultrastructural study and description of Cystosporogenes deliaradicae n. sp. (microspora, glugeidae), a microsporidian parasite of the cabbage root fly Delia radicum (Linnaeus, 1758) (diptera, anthomyidae). / Larsson, J. I.Ronny; Eilenberg, Jørgen; Bresciani, Jose.
I: European Journal of Protistology, Bind 31, Nr. 3, 01.01.1995, s. 275-285.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - Ultrastructural study and description of Cystosporogenes deliaradicae n. sp. (microspora, glugeidae), a microsporidian parasite of the cabbage root fly Delia radicum (Linnaeus, 1758) (diptera, anthomyidae)
AU - Larsson, J. I.Ronny
AU - Eilenberg, Jørgen
AU - Bresciani, Jose
PY - 1995/1/1
Y1 - 1995/1/1
N2 - The microsporidium Cystosporogenes deliaradicae sp. no v., a parasite of the adipose tissue of adult cabbage root flies, Delia radicum in Denmark, is described based on light microscopic and ultrastructural characteristics. All life cycle stages have isolated nuclei. The sporogony is polysporoblastic, yielding 4–16 (most commonly 6 or 8) ovocylindrical spores, measuring 1.2–1.5 × 4.6–5.5 μm when fixed and stained. The spore wall has an approximately 43 nm thick, layered exospore with a median layer resembling a double membrane. The polaroplast is uniformly lamellar. The isofilar, 114–123 nm thick, polar filament is arranged in 11–15 (most commonly 12–13) coils in a single layer close to the spore wall. The angle of tilt is approximately 35°. The last coil touches the posterior pole of the spore. A sporophorous vesicle is produced by the sporont. The envelope is generated as a duplication of the plasma membrane. Typically the vesicle primordia grow from one pole of the sporont to the other. The episporontal space initially has granular inclusions. Later septate, persistent tubules of exospore material appear. Simultaneously with the release of sporoblasts, wide tubulus-like, non-persistent structures are formed. They are covered by regularly spaced electron-dense material. Anomalous sporogony was frequently observed, probably caused by a simultaneous parasitism by the fungus Strongwellsea castrans. The systematic position of the microsporidium is discussed, including the reasons for incorporating the genus into the family Glugeidae.
AB - The microsporidium Cystosporogenes deliaradicae sp. no v., a parasite of the adipose tissue of adult cabbage root flies, Delia radicum in Denmark, is described based on light microscopic and ultrastructural characteristics. All life cycle stages have isolated nuclei. The sporogony is polysporoblastic, yielding 4–16 (most commonly 6 or 8) ovocylindrical spores, measuring 1.2–1.5 × 4.6–5.5 μm when fixed and stained. The spore wall has an approximately 43 nm thick, layered exospore with a median layer resembling a double membrane. The polaroplast is uniformly lamellar. The isofilar, 114–123 nm thick, polar filament is arranged in 11–15 (most commonly 12–13) coils in a single layer close to the spore wall. The angle of tilt is approximately 35°. The last coil touches the posterior pole of the spore. A sporophorous vesicle is produced by the sporont. The envelope is generated as a duplication of the plasma membrane. Typically the vesicle primordia grow from one pole of the sporont to the other. The episporontal space initially has granular inclusions. Later septate, persistent tubules of exospore material appear. Simultaneously with the release of sporoblasts, wide tubulus-like, non-persistent structures are formed. They are covered by regularly spaced electron-dense material. Anomalous sporogony was frequently observed, probably caused by a simultaneous parasitism by the fungus Strongwellsea castrans. The systematic position of the microsporidium is discussed, including the reasons for incorporating the genus into the family Glugeidae.
KW - A
KW - anchoring disc
KW - Cystosporogenes deliaradicae sp. nov.
KW - D
KW - Delia radicum, adults
KW - double layer
KW - E
KW - endospore
KW - EX
KW - exospore
KW - F
KW - G
KW - Golgi vesicles
KW - HN
KW - host nucleus
KW - Microspora
KW - N
KW - nucleus
KW - P
KW - plasma membrane
KW - PM
KW - polar filament
KW - polar sac
KW - polaroplast
KW - posterior vacuole
KW - PS
KW - PV
KW - S
KW - spore
KW - sporophorous vesicle
KW - T
KW - Taxonomy
KW - tubular inclusion
KW - Ultrastructure
KW - V
UR - http://www.scopus.com/inward/record.url?scp=0028854767&partnerID=8YFLogxK
U2 - 10.1016/S0932-4739(11)80091-X
DO - 10.1016/S0932-4739(11)80091-X
M3 - Journal article
AN - SCOPUS:0028854767
VL - 31
SP - 275
EP - 285
JO - European Journal of Protistology
JF - European Journal of Protistology
SN - 0932-4739
IS - 3
ER -
ID: 200827403