Quantification and development of teratocytes in novel-association host-parasitoid combinations

Marianne Alleyne; Robert N. Wiedenmann; Rodrigo R. Diaz

doi:10.1016/S0022-1910(01)00132-9

Quantification and development of teratocytes in novel-association host-parasitoid combinations

Marianne Alleyne, Robert N. Wiedenmann, Rodrigo R. Diaz

Research output: Contribution to journal › Article › peer-review

Abstract

We studied the development of teratocytes derived from two congeneric gregarious endoparasitic species, Cotesia chilonis and C. flavipes, parasitizing two congeneric novel hosts, Diatraea saccharalis and D. grandiosella. The host-parasitoid combinations studied allowed us to investigate relationships between host suitability and teratocyte development. D. saccharalis was a suitable host for both parasitoids, whereas D. grandiosella was suitable for C. chilonis development but often encapsulated C. flavipes progeny. Encapsulation of C. flavipes by D. grandiosella commenced around the time of parasitoid egg hatch, when teratocytes were released into the host's hemolymph. The gregarious parasitoids studied here released about 200 teratocytes per egg. Both absolute and normalized (teratocytes/parasitoid) numbers decreased over time. D. saccharalis supported more C. flavipes-derived teratocytes than D. grandiosella, possibly because of the unsuitability of the latter host. On intermediate assay days the number of C. flavipes-derived teratocytes was greater than for C. chilonis. However, C. chilonis-derived teratocytes grew larger than C. flavipes. Teratocytes in all host-parasitoid combinations doubled in size during parasitoid development. Teratocytes generally grew larger in D. grandiosella, which was a less suitable host.

Original language	English (US)
Pages (from-to)	1419-1427
Number of pages	9
Journal	Journal of insect physiology
Volume	47
Issue number	12
DOIs	https://doi.org/10.1016/S0022-1910(01)00132-9
State	Published - 2001

Keywords

Braconidae
Cotesia flavipes-species complex
Diatraea spp
Pyralidae
Teratocyte

ASJC Scopus subject areas

Physiology
Insect Science

Online availability

10.1016/S0022-1910(01)00132-9

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@article{5edf2f638f324982a792430a0072e2a8,

title = "Quantification and development of teratocytes in novel-association host-parasitoid combinations",

abstract = "We studied the development of teratocytes derived from two congeneric gregarious endoparasitic species, Cotesia chilonis and C. flavipes, parasitizing two congeneric novel hosts, Diatraea saccharalis and D. grandiosella. The host-parasitoid combinations studied allowed us to investigate relationships between host suitability and teratocyte development. D. saccharalis was a suitable host for both parasitoids, whereas D. grandiosella was suitable for C. chilonis development but often encapsulated C. flavipes progeny. Encapsulation of C. flavipes by D. grandiosella commenced around the time of parasitoid egg hatch, when teratocytes were released into the host's hemolymph. The gregarious parasitoids studied here released about 200 teratocytes per egg. Both absolute and normalized (teratocytes/parasitoid) numbers decreased over time. D. saccharalis supported more C. flavipes-derived teratocytes than D. grandiosella, possibly because of the unsuitability of the latter host. On intermediate assay days the number of C. flavipes-derived teratocytes was greater than for C. chilonis. However, C. chilonis-derived teratocytes grew larger than C. flavipes. Teratocytes in all host-parasitoid combinations doubled in size during parasitoid development. Teratocytes generally grew larger in D. grandiosella, which was a less suitable host.",

keywords = "Braconidae, Cotesia flavipes-species complex, Diatraea spp, Pyralidae, Teratocyte",

author = "Marianne Alleyne and Wiedenmann, {Robert N.} and Diaz, {Rodrigo R.}",

note = "We appreciate the help with colony maintenance from C. Helm and other members of our laboratory. We thank F. Davis and S. Wolf (USDA-ARS, Mississippi State); J. Smith and P. Gillogly (Texas A&M) for providing Diatraea colonies and J. Legaspi and S. Alvarez (Texas Agricultural Experiment Station) for providing D. saccharalis diet. We also thank M. Berenbaum, J. Nardi and S. Fahrbach (University of Illinois at Urbana-Champaign), N. Beckage (University of California at Riverside) and two anonymous reviewers for their comments on earlier versions of this manuscript. We thank E. Zaborski (Illinois Natural History Survey) for use of image capturing hardware and software. Research was supported by a Dissertation Completion Fellowship to M.A. from the University of Illinois — Graduate College, various grants in aid to M.A. from the University of Illinois — School of Life Sciences and USDA-CSREES Hatch projects 12-0316 and 65-0331 to R.N.W.",

year = "2001",

doi = "10.1016/S0022-1910(01)00132-9",

language = "English (US)",

volume = "47",

pages = "1419--1427",

journal = "Journal of insect physiology",

issn = "0022-1910",

publisher = "Elsevier Ltd",

number = "12",

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T1 - Quantification and development of teratocytes in novel-association host-parasitoid combinations

AU - Alleyne, Marianne

AU - Wiedenmann, Robert N.

AU - Diaz, Rodrigo R.

N1 - We appreciate the help with colony maintenance from C. Helm and other members of our laboratory. We thank F. Davis and S. Wolf (USDA-ARS, Mississippi State); J. Smith and P. Gillogly (Texas A&M) for providing Diatraea colonies and J. Legaspi and S. Alvarez (Texas Agricultural Experiment Station) for providing D. saccharalis diet. We also thank M. Berenbaum, J. Nardi and S. Fahrbach (University of Illinois at Urbana-Champaign), N. Beckage (University of California at Riverside) and two anonymous reviewers for their comments on earlier versions of this manuscript. We thank E. Zaborski (Illinois Natural History Survey) for use of image capturing hardware and software. Research was supported by a Dissertation Completion Fellowship to M.A. from the University of Illinois — Graduate College, various grants in aid to M.A. from the University of Illinois — School of Life Sciences and USDA-CSREES Hatch projects 12-0316 and 65-0331 to R.N.W.

PY - 2001

Y1 - 2001

N2 - We studied the development of teratocytes derived from two congeneric gregarious endoparasitic species, Cotesia chilonis and C. flavipes, parasitizing two congeneric novel hosts, Diatraea saccharalis and D. grandiosella. The host-parasitoid combinations studied allowed us to investigate relationships between host suitability and teratocyte development. D. saccharalis was a suitable host for both parasitoids, whereas D. grandiosella was suitable for C. chilonis development but often encapsulated C. flavipes progeny. Encapsulation of C. flavipes by D. grandiosella commenced around the time of parasitoid egg hatch, when teratocytes were released into the host's hemolymph. The gregarious parasitoids studied here released about 200 teratocytes per egg. Both absolute and normalized (teratocytes/parasitoid) numbers decreased over time. D. saccharalis supported more C. flavipes-derived teratocytes than D. grandiosella, possibly because of the unsuitability of the latter host. On intermediate assay days the number of C. flavipes-derived teratocytes was greater than for C. chilonis. However, C. chilonis-derived teratocytes grew larger than C. flavipes. Teratocytes in all host-parasitoid combinations doubled in size during parasitoid development. Teratocytes generally grew larger in D. grandiosella, which was a less suitable host.

AB - We studied the development of teratocytes derived from two congeneric gregarious endoparasitic species, Cotesia chilonis and C. flavipes, parasitizing two congeneric novel hosts, Diatraea saccharalis and D. grandiosella. The host-parasitoid combinations studied allowed us to investigate relationships between host suitability and teratocyte development. D. saccharalis was a suitable host for both parasitoids, whereas D. grandiosella was suitable for C. chilonis development but often encapsulated C. flavipes progeny. Encapsulation of C. flavipes by D. grandiosella commenced around the time of parasitoid egg hatch, when teratocytes were released into the host's hemolymph. The gregarious parasitoids studied here released about 200 teratocytes per egg. Both absolute and normalized (teratocytes/parasitoid) numbers decreased over time. D. saccharalis supported more C. flavipes-derived teratocytes than D. grandiosella, possibly because of the unsuitability of the latter host. On intermediate assay days the number of C. flavipes-derived teratocytes was greater than for C. chilonis. However, C. chilonis-derived teratocytes grew larger than C. flavipes. Teratocytes in all host-parasitoid combinations doubled in size during parasitoid development. Teratocytes generally grew larger in D. grandiosella, which was a less suitable host.

KW - Braconidae

KW - Cotesia flavipes-species complex

KW - Diatraea spp

KW - Pyralidae

KW - Teratocyte

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U2 - 10.1016/S0022-1910(01)00132-9

DO - 10.1016/S0022-1910(01)00132-9

M3 - Article

AN - SCOPUS:0035175372

SN - 0022-1910

VL - 47

SP - 1419

EP - 1427

JO - Journal of insect physiology

JF - Journal of insect physiology

IS - 12

ER -

Quantification and development of teratocytes in novel-association host-parasitoid combinations

Abstract

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