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Selected Works

2008

Articles 1 - 15 of 15

Full-Text Articles in Life Sciences

Co-Encapsulation Of Gallium With Gentamicin In Liposomes Enhances Antimicrobial Activity Of Gentamicin Against Pseudomonas Aeruginosa, Majed Halwani, B. Yebio, Zacharias E. Suntres, M. Alipour, Ali Azghani, A. Omri Nov 2008

Co-Encapsulation Of Gallium With Gentamicin In Liposomes Enhances Antimicrobial Activity Of Gentamicin Against Pseudomonas Aeruginosa, Majed Halwani, B. Yebio, Zacharias E. Suntres, M. Alipour, Ali Azghani, A. Omri

Ali Azghani

The aim of this study was to enhance the antimicrobial efficacy of a liposomal gentamicin formulation with gallium metal (Lipo-Ga-GEN) against clinical isolates of Pseudomonas aeruginosa. 

Sputum isolates of P. aeruginosa from cystic fibrosis patients were used to determine the MIC and MBC of Lipo-Ga-GEN. P. aeruginosa biofilms were formed and used to compare the minimum biofilm eradication concentration of the conventional drugs with that of Lipo-Ga-GEN. Quorum sensing (QS) molecule reduction of P. aeruginosa was determined by monitoring N-acyl homoserine lactone production using Agrobacterium tumefaciens reporter strain (A136). Viability of the cultured human lung epithelial cells (A549) was determined …

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Demographic Parameters Of Yellowfin Croaker, Umbrina Roncador (Perciformes: Sciaenidae), From The Southern California Bight, Daniel Pondella, John Froeschke, Lynne Wetmore, Eric Miller, Charles Valle, Lea Medeiros Sep 2008

Demographic Parameters Of Yellowfin Croaker, Umbrina Roncador (Perciformes: Sciaenidae), From The Southern California Bight, Daniel Pondella, John Froeschke, Lynne Wetmore, Eric Miller, Charles Valle, Lea Medeiros

Daniel Pondella

The yellowfin croaker, Umbrina roncador Jordan & Gilbert, 1882, is a common nearshore and surf-zone species in the southern California bight. Age was determined for individuals (n = 1,209) using annual increments in otoliths, and size at age was modeled using the von Bertalanffy growth curve (L∞ = 307.754 mm, k = 0.278 yr−1, t0 = −0.995 yr; maximum age = 15 yr). Females (L∞= 313.173 mm, k = 0.307 yr−1, t0 = −0.771 yr) grew significantly faster and larger than males (L∞= 298.886, k = 0.269 yr−1, t0 = −1.072 yr). Age and growth modeling based upon otolith length …

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Psf2 Plays Important Roles In Normal Eye Development In Xenopus Laevis, Brian Walter, Kimberly Perry, Lisa Fukui, Erica Malloch, Jason Weaver, Jonathan Henry May 2008

Psf2 Plays Important Roles In Normal Eye Development In Xenopus Laevis, Brian Walter, Kimberly Perry, Lisa Fukui, Erica Malloch, Jason Weaver, Jonathan Henry

Brian Walter

No abstract provided.

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Why Are Incubation Periods Longer In The Tropics? A Common-Garden Experiment With House Wrens Reveals It Is All In The Egg, Given Harper, W. Douglas Robinson, John D. Styrsky, Brian J. Payne, Charles F. Thompson Mar 2008

Why Are Incubation Periods Longer In The Tropics? A Common-Garden Experiment With House Wrens Reveals It Is All In The Egg, Given Harper, W. Douglas Robinson, John D. Styrsky, Brian J. Payne, Charles F. Thompson

Given Harper

Incubation periods of Neotropical birds are often longer than those of related species at temperate latitudes. We conducted a common-garden experiment to test the hypothesis that longer tropical incubation periods result from longer embryo development times rather than from different patterns of parental incubation behavior. House wrens, one of few species whose geographic range includes tropical equatorial and temperate high latitudes, have incubation periods averaging 1.2 days longer at tropical latitudes. We incubated eggs of house wrens in Illinois and Panama under identical conditions in mechanical incubators. Even after factoring out differences in egg size, tropical house wrens still required …

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Anisotropic Contraction In Forisomes: Simple Models Won't Fit, Winfried Peters, Michael Knoblauch, Stephen Warmann, William Pickard, Amy Shen Mar 2008

Anisotropic Contraction In Forisomes: Simple Models Won't Fit, Winfried Peters, Michael Knoblauch, Stephen Warmann, William Pickard, Amy Shen

Winfried S. Peters

Forisomes are ATP-independent, Ca2+-driven contractile protein bodies acting as reversible valves in the phloem of plants of the legume family. Forisome contraction is anisotropic, as shrinkage in length is associated with radial expansion and vice versa. To test the hypothesis that changes in length and width are causally related, we monitored Ca2+- and pH-dependent deformations in the exceptionally large forisomes of Canavalia gladiata by high-speed photography, and computed time-courses of derived geometric parameters (including volume and surface area). Soybean forisomes, which in the resting state resemble those of Canavalia geometrically but have less than 2% of the volume, were also …

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Probiotics: 100 Years (1907-2007) After Elie Metchnikoff's Observations, Kingsley Anukam, Gregor Reid Jan 2008

Probiotics: 100 Years (1907-2007) After Elie Metchnikoff's Observations, Kingsley Anukam, Gregor Reid

Kingsley C Anukam

No abstract provided.

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Definition Of Global And Transcript-Specific Mrna Export Pathways In Metazoans, Natalie Farny, Jessica Hurt, Pamela Silver Dec 2007

Definition Of Global And Transcript-Specific Mrna Export Pathways In Metazoans, Natalie Farny, Jessica Hurt, Pamela Silver

Natalie G. Farny

Eukaryotic gene expression requires export of messenger RNAs (mRNAs) from their site of transcription in the nucleus to the cytoplasm where they are translated. While mRNA export has been studied in yeast, the complexity of gene structure and cellular function in metazoan cells has likely led to increased diversification of these organisms' export pathways. Here we report the results of a genome-wide RNAi screen in which we identify 72 factors required for polyadenylated [poly-(A(+))] mRNA export from the nucleus in Drosophila cells. Using structural and functional conservation analysis of yeast and Drosophila mRNA export factors, we expose the evolutionary divergence …

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Nutrient Stress And Gall Flies Interact To Affect Floral-Sex Ratio In Gynomonoecious Solidago Altissima (Asteraceae), Warren Abrahamson, M.J. Wise, L.E. Coffey Dec 2007

Nutrient Stress And Gall Flies Interact To Affect Floral-Sex Ratio In Gynomonoecious Solidago Altissima (Asteraceae), Warren Abrahamson, M.J. Wise, L.E. Coffey

Warren G. Abrahamson, II

No abstract provided.

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Good Mothers, Bad Mothers, And Resistance To Herbivory In Solidago Altissima, Warren Abrahamson, M.J. Wise, J.M. Partelow, K.J. Everson, M.K. Anselmo Dec 2007

Good Mothers, Bad Mothers, And Resistance To Herbivory In Solidago Altissima, Warren Abrahamson, M.J. Wise, J.M. Partelow, K.J. Everson, M.K. Anselmo

Warren G. Abrahamson, II

No abstract provided.

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Applying The Limiting Resource Model To Plant Tolerance Of Apical Meristem Damage, Warren Abrahamson, M.J. Wise Dec 2007

Applying The Limiting Resource Model To Plant Tolerance Of Apical Meristem Damage, Warren Abrahamson, M.J. Wise

Warren G. Abrahamson, II

No abstract provided.

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Phylogenomic Evidence For Multiple Losses Of Flight In Ratite Birds, Sushma Reddy Dec 2007

Phylogenomic Evidence For Multiple Losses Of Flight In Ratite Birds, Sushma Reddy

Sushma Reddy

No abstract provided.

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Rough- Shell Disease Of Penaeus Monodon Fabricius, 1798 In Grow-Out Ponds., A. Gopalakrishnan, M. Rajkumar, T. Vasanthan, Gary Martin, T. Balasubramanian Dec 2007

Rough- Shell Disease Of Penaeus Monodon Fabricius, 1798 In Grow-Out Ponds., A. Gopalakrishnan, M. Rajkumar, T. Vasanthan, Gary Martin, T. Balasubramanian

Gary Martin

Macrophytes, such as mangroves, salt marshes and sea grasses, constitute an important component of coastal domain (Kathiresan and Bingham, 2001; Kathiresan, 2007), but their role in carbon budget is neglected from accounts of the global ocean carbon cycle for the main reason that the marine vegetation occupies only less than 2% of the oceanic surface (Duarte and Cebrian, 1996). Moreover, the coastal macrophytes are being cleared and converted globally at alarming rates. For instance, the annual rate of loss in global mangroves was disturbingly high, 0.66%, during the years 2000–2005 (FAO, 2007).

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Plant Hydraulics: New Discoveries In The Pipeline (Meeting Report), R. Pratt, A. Jacobsen, Gretchen North, L. Sack, H. Schenk Dec 2007

Plant Hydraulics: New Discoveries In The Pipeline (Meeting Report), R. Pratt, A. Jacobsen, Gretchen North, L. Sack, H. Schenk

Gretchen North

No abstract provided.

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Ducking As A Means Of Resistance To Herbivory In Tall Goldenrod, Solidago Altissima, Warren Abrahamson, M.J. Wise Dec 2007

Ducking As A Means Of Resistance To Herbivory In Tall Goldenrod, Solidago Altissima, Warren Abrahamson, M.J. Wise

Warren G. Abrahamson, II

No abstract provided.

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Testing The Nutrition Hypothesis For The Adaptive Nature Of Insect Galls: Does A Non-Adapted Herbivore Perform Better In Galls?, Warren Abrahamson, S.E. Diamond, C.P. Blair Dec 2007

Testing The Nutrition Hypothesis For The Adaptive Nature Of Insect Galls: Does A Non-Adapted Herbivore Perform Better In Galls?, Warren Abrahamson, S.E. Diamond, C.P. Blair

Warren G. Abrahamson, II

No abstract provided.

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