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Articles 1 - 30 of 103
Full-Text Articles in Life Sciences
Dissociation Of The Hepatic Phenotype From Hnf4 And Hnf1x Expression, Gary A. Bulla, David M. Kraus
Dissociation Of The Hepatic Phenotype From Hnf4 And Hnf1x Expression, Gary A. Bulla, David M. Kraus
Gary A. Bulla
Dedifferentiated cells have served as tools to understand the molecular consequences of the loss of tissue-specific pathways. Here we report the characterization of one of these cell lines, M29, which lacks the liver-enriched HNF4-HNF1x pathway, in order to determine if this class of variant cell lines could provide additional information regarding requirements for tissue-type expression. We report that although the liver-specific x1-antitrypsin (a1AT) gene remains silent despite reactivation of the HNF4/HNF1x pathway in the M29 cells, the frequency of activation of an integrated x1AT-APRT transgene is increased 1000-fold in response to these transcription factors. The human x1AT locus (introduced via …
Dissociation Of The Hepatic Phenotype From Hnf4 And Hnf1x Expression, Gary Bulla, David Kraus
Dissociation Of The Hepatic Phenotype From Hnf4 And Hnf1x Expression, Gary Bulla, David Kraus
Faculty Research & Creative Activity
Dedifferentiated cells have served as tools to understand the molecular consequences of the loss of tissue-specific pathways. Here we report the characterization of one of these cell lines, M29, which lacks the liver-enriched HNF4-HNF1x pathway, in order to determine if this class of variant cell lines could provide additional information regarding requirements for tissue-type expression. We report that although the liver-specific x1-antitrypsin (a1AT) gene remains silent despite reactivation of the HNF4/HNF1x pathway in the M29 cells, the frequency of activation of an integrated x1AT-APRT transgene is increased 1000-fold in response to these transcription factors. The human x1AT locus (introduced via …
Dissociation Of The Hepatic Phenotype From Hnf4 And Hnf1x Expression, Gary A. Bulla, David M. Kraus
Dissociation Of The Hepatic Phenotype From Hnf4 And Hnf1x Expression, Gary A. Bulla, David M. Kraus
Faculty Research & Creative Activity
Dedifferentiated cells have served as tools to understand the molecular consequences of the loss of tissue-specific pathways. Here we report the characterization of one of these cell lines, M29, which lacks the liver-enriched HNF4-HNF1x pathway, in order to determine if this class of variant cell lines could provide additional information regarding requirements for tissue-type expression. We report that although the liver-specific x1-antitrypsin (a1AT) gene remains silent despite reactivation of the HNF4/HNF1x pathway in the M29 cells, the frequency of activation of an integrated x1AT-APRT transgene is increased 1000-fold in response to these transcription factors. The human x1AT locus (introduced via …
Phoradendron Leucarpum (Raf.) Reveal & M.C. Johnston, Loy R. Phillippe
Phoradendron Leucarpum (Raf.) Reveal & M.C. Johnston, Loy R. Phillippe
Specimens by Name
No abstract provided.
Renesting Decisions And Annual Fecundity Of Female Dickcissels (Spiza Americana) In Illinois, Jeffrey W. Walk, Kevin Wentworth, Eric L. Kershner, Eric K. Bollinger, Richard E. Warner
Renesting Decisions And Annual Fecundity Of Female Dickcissels (Spiza Americana) In Illinois, Jeffrey W. Walk, Kevin Wentworth, Eric L. Kershner, Eric K. Bollinger, Richard E. Warner
Eric K. Bollinger
ABSTRACT.-Renesting decisions and annual fecundity are crucial for interpreting other demographic information, yet are infrequently reported. We used radiotelemetry to monitor female Dickcissels (Spiza americana) throughout the 1999 and 2000 breeding seasons in southeastern Illinois. Overall fecundity (regardless of whether females remained in the study area throughout the breeding season) was 0.61 ± 0.13 female fledglings per year. Of females that remained within the study area, 94% fledged young (1.25 ± 0.15 female fledglings per year). Most females (62%) that experienced nest failure emigrated from the study area (moved >10 km) in 2.8 ± 0.6 days; others (36%) initiated subsequent …
Renesting Decisions And Annual Fecundity Of Female Dickcissels (Spiza Americana) In Illinois, Jeffrey Walk, Kevin Wentworth, Eric Kershner, Eric Bollinger, Richard Warner
Renesting Decisions And Annual Fecundity Of Female Dickcissels (Spiza Americana) In Illinois, Jeffrey Walk, Kevin Wentworth, Eric Kershner, Eric Bollinger, Richard Warner
Faculty Research & Creative Activity
ABSTRACT.-Renesting decisions and annual fecundity are crucial for interpreting other demographic information, yet are infrequently reported. We used radiotelemetry to monitor female Dickcissels (Spiza americana) throughout the 1999 and 2000 breeding seasons in southeastern Illinois. Overall fecundity (regardless of whether females remained in the study area throughout the breeding season) was 0.61 ± 0.13 female fledglings per year. Of females that remained within the study area, 94% fledged young (1.25 ± 0.15 female fledglings per year). Most females (62%) that experienced nest failure emigrated from the study area (moved >10 km) in 2.8 ± 0.6 days; others (36%) initiated subsequent …
Germination Of Silene Regia Seeds From Four Sites In Lawrence County, Illinois, Following Scarification Or Stratification, Nicolette Flocca, Janice Coons, Henry Owen, Brian Fischer, Bob Edgin
Germination Of Silene Regia Seeds From Four Sites In Lawrence County, Illinois, Following Scarification Or Stratification, Nicolette Flocca, Janice Coons, Henry Owen, Brian Fischer, Bob Edgin
Faculty Research & Creative Activity
Silene regia Sims is an endangered prairie forb in Illinois where small isolated colonies are scattered. In La·wrence County, two sites (Allison Prairie and Chauncey Marsh) have fewer plants (6-23) than two other sites (Cmmty Road and Cemetery) with 26-45 plants. Information on seed germination in these isolated colonies is needed. Our goal was to evaluate seed germination of S. regia from colonies in Lawrence County, illinois. S. regia fruits were collected from these four sites on August 9 and 19, 1999. Seeds were scarified by cutting the seed coat, or they were stratified at 2 C for 12 or …
Renesting Decisions And Annual Fecundity Of Female Dickcissels (Spiza Americana) In Illinois, Jeffrey W. Walk, Kevin Wentworth, Eric L. Kershner, Eric K. Bollinger, Richard E. Warner
Renesting Decisions And Annual Fecundity Of Female Dickcissels (Spiza Americana) In Illinois, Jeffrey W. Walk, Kevin Wentworth, Eric L. Kershner, Eric K. Bollinger, Richard E. Warner
Faculty Research & Creative Activity
ABSTRACT.-Renesting decisions and annual fecundity are crucial for interpreting other demographic information, yet are infrequently reported. We used radiotelemetry to monitor female Dickcissels (Spiza americana) throughout the 1999 and 2000 breeding seasons in southeastern Illinois. Overall fecundity (regardless of whether females remained in the study area throughout the breeding season) was 0.61 ± 0.13 female fledglings per year. Of females that remained within the study area, 94% fledged young (1.25 ± 0.15 female fledglings per year). Most females (62%) that experienced nest failure emigrated from the study area (moved >10 km) in 2.8 ± 0.6 days; others (36%) initiated subsequent …
Germination Of Silene Regia Seeds From Four Sites In Lawrence County, Illinois, Following Scarification Or Stratification, Nicolette L. Flocca, Janice M. Coons, Henry R. Owen, Brian J. Fischer, Bob E. Edgin
Germination Of Silene Regia Seeds From Four Sites In Lawrence County, Illinois, Following Scarification Or Stratification, Nicolette L. Flocca, Janice M. Coons, Henry R. Owen, Brian J. Fischer, Bob E. Edgin
Faculty Research & Creative Activity
Silene regia Sims is an endangered prairie forb in Illinois where small isolated colonies are scattered. In La·wrence County, two sites (Allison Prairie and Chauncey Marsh) have fewer plants (6-23) than two other sites (Cmmty Road and Cemetery) with 26-45 plants. Information on seed germination in these isolated colonies is needed. Our goal was to evaluate seed germination of S. regia from colonies in Lawrence County, illinois. S. regia fruits were collected from these four sites on August 9 and 19, 1999. Seeds were scarified by cutting the seed coat, or they were stratified at 2 C for 12 or …
Comptonia Peregrina (L.) J.M. Coult., Sean Jones
Comptonia Peregrina (L.) J.M. Coult., Sean Jones
Specimens by Name
No abstract provided.
Ampelopsis Cordata Michx., John E. Ebinger, Loy R. Phillippe
Ampelopsis Cordata Michx., John E. Ebinger, Loy R. Phillippe
Specimens by Name
No abstract provided.
Spiranthes Ovalis Var. Erostellata Catling, Gordon C. Tucker
Spiranthes Ovalis Var. Erostellata Catling, Gordon C. Tucker
Specimens by Name
No abstract provided.
Fraxinus Nigra Pott, Loy R. Phillippe, John E. Ebinger, William Mcclain
Fraxinus Nigra Pott, Loy R. Phillippe, John E. Ebinger, William Mcclain
Specimens by Name
No abstract provided.
Cannabis Sativa L., John E. Ebinger
Lysimachia Hybrida Michx., Gordon C. Tucker
Goodyera Pubescens (Willd.) R. Br., Gordon C. Tucker
Goodyera Pubescens (Willd.) R. Br., Gordon C. Tucker
Specimens by Name
No abstract provided.
Epipactis Helleborine (L.) Crantz, Gordon C. Tucker
Epipactis Helleborine (L.) Crantz, Gordon C. Tucker
Specimens by Name
No abstract provided.
Viola Arvensis Murray, Gordon C. Tucker
Acer Saccharinum L., John E. Ebinger
Phyla Lanceolata (Michx.) Greene, Gordon C. Tucker
Phyla Lanceolata (Michx.) Greene, Gordon C. Tucker
Specimens by Name
No abstract provided.
Verbena Urticifolia L., Gordon C. Tucker
Fraxinus Lanceolata Borkh., Gordon C. Tucker
Parthenocissus Quinquefolia (L.) Planch., John E. Ebinger
Parthenocissus Quinquefolia (L.) Planch., John E. Ebinger
Specimens by Name
No abstract provided.
Vitis Riparia Michx., John E. Ebinger
Vitis Riparia Michx., Gordon C. Tucker
Phemeranthus Rugospermus (Holz.) Kiger, John E. Ebinger
Phemeranthus Rugospermus (Holz.) Kiger, John E. Ebinger
Specimens by Name
No abstract provided.
Fraxinus Nigra Pott, John E. E. Ebinger
Portulaca Oleracea L., Loy R. Phillipe, Paul B. Marcum, John E. Ebinger
Portulaca Oleracea L., Loy R. Phillipe, Paul B. Marcum, John E. Ebinger
Specimens by Name
No abstract provided.
Lysimachia Ciliata L., Kerry Barringer
Responses Of Nesting Bobolinks (Dolichonyx Oryzivorus) To Habitat Edges, Eric K. Bollinger, Thomas A. Gavin
Responses Of Nesting Bobolinks (Dolichonyx Oryzivorus) To Habitat Edges, Eric K. Bollinger, Thomas A. Gavin
Eric K. Bollinger
T.-Avoidance of habitat edges may be contributing to reduced densities of grass- land birds in small habitat patches. Nest densities for grassland-nesting Bobolinks (Dolichonyx oryzivorus) were much lower than expected within 25 m of forest edges at three sites in New York, and that pattern ("edge avoidance") extended to 100 m at one site. Nests located within 50 m of forest or wooded hedgerow edges had lower daily survival rates, compared with nests >100 m from any habitat edge. Bobolinks tended to move away from forest edges when renest- ing after nest failure; that pattern was especially evident in females …