MARC details
| 000 -LEADER |
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| fixed length control field |
03031nam a2200253Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625153942.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-14478 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Life cycle and population development of the entomopathogenic nematodes Steinernema carpocapsae and S. feltiae (Nematoda, Rhabditida)in monoxenic liquid culture |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Nematology, 1(3), p.201-210, 1999 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
The life cycle and population dynamics of the entomopathogenic nematodes Steinernema carpocapsae and S. feltiae were studied in monoxenic liquid culture with their symbiotic bacteria Xenorhabdus nematophila and X. bovienii. To distinguish between the different juvenile and adult stages, their size was recorded. No differences were observed between the species in the size of the juvenile stages but significant differences were recorded in the length of the F1 adults, pre-dauer (J2d)and dauer juvenile stages (DJ). On average, 90 percent of inoculated DJ of S. feltiae recovered and 77 percent of S. carpocapsae. In general, S. feltiae developed from the inoculum DJ to the adult approximately 1 day faster than S. carpocapsae. The sex ratio was female-biased (59.2 ± 2.2 percent in S. carpocapsae, 66.7 ± 2.6 percent in S. feltiae)in the parental population but not in the F1 generations. Steinernematid adults, like heterorhaditids, respond to depleting food resources with the cessation of egg laying. Juveniles hatch inside the uterus and develop at cost of the maternal body content causing the death of the adult (endotokia matricida). In contrast to Heterorhabditis spp. and in vivo observations of steinernematids by other authors, who reported that readily developed DJ leave the carcass of the dead adult, in this study J2d emerged 12 h after cessation of egg laying. The density of both bacterial cultures decreased due to the feeding of the parental juveniles. However, X. nematophila continued at very low density, whereas the density of X. bovienii increased again until 15 days post-inoculation. The vast majority of F1 S. carpocapsae offspring developed to DJ, whereas in S. feltiae a significant second and third generation of adults was observed, probably due to the increasing bacterial population. However, second and third generation adults in S. feltiae cultures did not contribute significantly to the DJ yield.Mean yields of 158 × 103 DJ ml-1 were recorded for S. carpocapsae and 106 × 103 DJ ml-1 for S. feltiae. The results provide valuable information for future process improvement. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
BIOLOGICAL CONTROL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
DAUER JUVENILE RECOVERY |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
ENDOTOKIA MATRICIDA |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
XENORHABDUS BOVIENII |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
XENORHABDUS NEMATOPHILA. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hirao, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Ehlers, R-U. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Strauch, O. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1rO7dyJRABvXk88eX9fEocZJynZpeBrm0/view?usp=drivesdk">https://drive.google.com/file/d/1rO7dyJRABvXk88eX9fEocZJynZpeBrm0/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
