David L. Smith

Louisiana State University Health Sciences Center New Orleans

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Jean B. Smith

University of California, San Francisco

James A. McCloskey

Hackensack Meridian Health

Kenneth C. Gross

Beltsville Agricultural Research Center

Jerry L. McLaughlin

Purdue University West Lafayette

B.A. Izzuddin

Imperial College London

A. D. Krikorian

State University of New York

Veniamin N. Lapko

Celerion (United States)

Karl V. Wood

Kazimierz Wielki University in Bydgoszcz

Laura R. Miesbauer

Abbott (Germany)

Connie M. Weaver

San Diego State University

Cooperative Institutions

Purdue University West Lafayette

Louisiana State University Health Sciences Center New Orleans

Louisiana State University

University of Utah

University of Nebraska–Lincoln

Tufts University

Harvard University

Agricultural Research Service

Imperial College London

National Institutes of Health

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

PHOTOCONTROL OF SPORE GERMINATION IN POLYPODIUM VULGARE L.

New Phytologist (1984)

Norma Agnew Anne McCabe David L. Smith

S ummary Spore germination in the. fern Polypodium vulgare is induced by light at all wavelengths from blue to far‐red, although red light is most effective. The action spectrum for germination together with observations on the photoreversible effects of red and far‐red light provide evidence for the involvement of phytochrome, but the effects of blue light, particularly its interactions with red light, are incompatible with an interpretation in terms of phytochrome alone. It is suggested that two pigments are involved, phytochrome and a blue light absorbing pigment, but that not all spores contain effective levels of both pigments.

Phytochrome

Far-red

Spore germination

Action spectrum

10.1111/j.1469-8137.1984.tb03553.x

Cite

Citations (3)

The negative ion mass spectra of selected nucleosides

Biomedical mass spectrometry (1983)

David L. Smith Karl H. Schram James A. McCloskey

Negative ion mass spectra of several free nucleosides as well as their trifluoroacetyl, trimethylsilyl, and 2′-o-nitrobenzyl derivatives are reported. A low ion source pressure is used so that the processes of collisional stabilization and ion/molecule reactions often associated with negative ion chemical ionization do not occur. The utility of such spectra for identification of these and similar nucleosides which may be present as unknowns is discussed. Details of modifications for acquiring negative ion mass spectra using an LKB-9000S mass spectrometer are given.

Polyatomic ion

Trimethylsilyl

10.1002/bms.1200100407

Cite

Citations (25)

A Family of at Least Seven β-Galactosidase Genes Is Expressed during Tomato Fruit Development

PLANT PHYSIOLOGY (2000)

David L. Smith Kenneth C. Gross

During our search for a cDNA encoding beta-galactosidase II, a beta-galactosidase/exogalactanase (EC 3.2.1.23) present during tomato (Lycopersicon esculentum Mill.) fruit ripening, a family of seven tomato beta-galactosidase (TBG) cDNAs was identified. The shared amino acid sequence identity among the seven TBG clones ranged from 33% to 79%. All contained the putative active site-containing consensus sequence pattern G-G-P-[LIVM]-x-Q-x-E-N-E-[FY] belonging to glycosyl hydrolase family 35. Six of the seven single-copy genes were mapped using restriction fragment length polymorphisms of recombinant inbred lines. RNA gel-blot analysis was used to evaluate TBG mRNA levels throughout fruit development, in different fruit tissues, and in various plant tissues. RNA gel-blot analysis was also used to reveal TBG mRNA levels in fruit of the rin, nor, and Nr tomato mutants. The TBG4-encoded protein, known to correspond to beta-galactosidase II, was expressed in yeast and exo-galactanase activity was confirmed via a quantified release of galactosyl residues from cell wall fractions containing beta(1-->4)-D-galactan purified from tomato fruit.

Lycopersicon

Northern blot

Southern blot

10.1104/pp.123.3.1173

Cite

Citations (259)

Leiomyosarcoma of the pulmonary artery masquerading as disseminated tuberculosis

Respiratory Medicine CME (2009)

Angela Atalla Sarah A. Bennett David L. Smith

Presentation (obstetrics)

10.1016/j.rmedc.2009.01.013

Cite

Citations (2)

Histology and histochemistry of the cotyledons of pisum arvense L. during germination

Planta (1967)

David L. Smith A. M. FLINN

Cotyledon

Parenchyma

Epidermis (zoology)

Imbibition

Vascular tissue

Histology

10.1007/bf00385172

Cite

Citations (47)

Cotyledon architecture and anatomy in the Acacieae (Leguminosae: Mimosoideae)

Botanical Journal of the Linnean Society (1998)

Robert C. Scott David L. Smith

Cotyledon size, shape, venation pattern and anatomy have been investigated in Faidherbia albida and 152 species of Acacia representing the three subgenera Acacia, Aculeiferum and Heterophyllum. Cell volumes of epidermis, palisade and storage tissue, stomatal frequency, stomatal index and frequency of stomatal types have been determined for F. albida and 12 species from each subgenus. The data obtained support the recognition of the subgenera of Acacia as separate taxa but provide no indication of their status. The evidence from cotyledons also supports the separation of Faidherbia from Acacia, and the amalgamation of the Acacieae and Ingeae.

Mimosoideae

Subgenus

Cotyledon

Albizia

10.1111/j.1095-8339.1998.tb02105.x

Cite

Citations (10)

A Case Report of Serotonin Syndrome Associated With Combined Nefazodone and Fluoxetine

The Journal of Clinical Psychiatry (2000)

David L. Smith Brant Wenegrat

Article AbstractLetter to the Editor Sir: Serotonin syndrome is a potentially lethal conditioncaused by excessive serotonergic activity and is diagnosed bythe presence of at least 3 of 10 symptoms: mental status changes(confusion, hypomania), agitation, myoclonus, hyperreflexia,diaphoresis, shivering, tremor, diarrhea, incoordination, and fever. It most frequently develops after coadministration of 2serotomimetic agents, 1 of which is often (but not always) amonoamine oxidase inhibitor. To our knowledge, the followingis the first report of serotonin syndrome involving the combinationof nefazodone, a 5-HT2 antagonist, and fluoxetine, a selectiveserotonin reuptake inhibitor (SSRI).

Nefazodone

Serotonin Syndrome

Serotonin reuptake inhibitor

Hyperreflexia

Hypomania

Trazodone

Ondansetron

10.4088/jcp.v61n0211e

Cite

Citations (16)

Use of remote sensing for monitoring growth of corn and soybean crops in the presence of weeds.

Pradeep Goel Shiv O. Prasher R. M. Patel David L. Smith Antonio DiTommaso

Source

Cite

Citations (0)

Painful shoulder syndromes

Journal of General Internal Medicine (1993)

O. Thomas Feagin David L. Smith

10.1007/bf02599999

Cite

Citations (9)

Oligohistidine Tag Mutagenesis of the λ Holin Gene

Journal of Bacteriology (1998)

David L. Smith Ry Young

ABSTRACT Holins are a diverse group of small integral membrane proteins elaborated by bacteriophages to lyse bacterial hosts and effect release of progeny phages in a precisely timed manner. Recently, the holin S gene of phage λ was overexpressed and the holin protein was purified to homogeneity by means of an oligohistidine tag procedure and immobilized metal affinity chromatography (D. L. Smith, D. K. Struck, J. M. Scholtz, and R. Young, J. Bacteriol. 180:2531–2540, 1998). Numerous locations within the S gene were tested as sites for an oligohistidine-tag-encoding insertion which preserves holin function. The lysis phenotypes of these alleles, expressed from moderate-copy-number transactivation plasmids, were characterized. A striking class of mutants, previously referred to as early-dominant, have been found to have severe lysis defects but are fully functional in the presence of wild-type protein. Results presented here reveal that the early-dominance phenotype is independent of S107 inhibitor function. The results provide insight into the mechanism of hole formation and indicate that, while oligomerization is required in the pathway to hole formation, a nucleation event may also be required.

Lambda phage

10.1128/jb.180.16.4199-4211.1998

Cite

Citations (32)