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Biology

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1989

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Articles 91 - 96 of 96

Full-Text Articles in Life Sciences

Feeding By A “Nonfeeding” Larva: Uptake Of Dissolved Amino Acids From Seawater By Licithotrophic Larvae Of The Gastropod Haliotis Refescens, William Jaeckle Jan 1989

Feeding By A “Nonfeeding” Larva: Uptake Of Dissolved Amino Acids From Seawater By Licithotrophic Larvae Of The Gastropod Haliotis Refescens, William Jaeckle

Scholarship

No abstract provided.


Phytoplankton Composition In A Borrow Pit Lake In Virginia, Seba B. Sheavly, Harold G. Marshall Jan 1989

Phytoplankton Composition In A Borrow Pit Lake In Virginia, Seba B. Sheavly, Harold G. Marshall

Biological Sciences Faculty Publications

The phytoplankton assemblages in Lake Trashmore, Virginia, a borrow pit, were dominated by centric diatoms and cyanobacteria, with seasonal pulses of cryptomonads, euglenoids, and chlorophyceans. Ninety species were identified and their abundance levels noted for a 12-month period.


The Genera Of Commelinaceae In The Southeastern United States, Gordon C. Tucker Jan 1989

The Genera Of Commelinaceae In The Southeastern United States, Gordon C. Tucker

Faculty Research & Creative Activity

No abstract provided.


Genetic Variability Within And Among Wintering Populations Of Brant, James M. Novak, L. M. Smith, L. D. Vangilder Jan 1989

Genetic Variability Within And Among Wintering Populations Of Brant, James M. Novak, L. M. Smith, L. D. Vangilder

Faculty Research & Creative Activity

No abstract provided.


Trichome Development In Arabidopsis Thaliana. Ii. Lsolation And Complementation Of The Glabrous1 Gene, Patricia L. Herman, M. David Marks Jan 1989

Trichome Development In Arabidopsis Thaliana. Ii. Lsolation And Complementation Of The Glabrous1 Gene, Patricia L. Herman, M. David Marks

School of Biological Sciences: Faculty Publications

We are using the formation of trichomes in Arabidopsis thaliana as a model system to study gene expression during cellular differentiation. To initiate the molecular characterization of this system, we tagged and isolated a gene that is specifically required for the development of the specialized trichome cell. We confirmed the identity of this gene, GLABROUS1 (GL1), by complementation. These results demonstrate that a crucial gene in a plant developmental pathway can be successfully identified by complementation.


Trichome Development In Arabidopsis Thaliana. 1. T-Dna Tagging Of The Glabrous1 Gene, M. David Marks, Kenneth A. Feldmann Jan 1989

Trichome Development In Arabidopsis Thaliana. 1. T-Dna Tagging Of The Glabrous1 Gene, M. David Marks, Kenneth A. Feldmann

School of Biological Sciences: Faculty Publications

Progeny from a transformed Arabidopsis plant (produced by the Agrobacterium-mediated seed transformation procedure) were found to be segregating for an altered trichome phenotype. The mutant plants have normal leaf trichomes but completely lack trichomes usually found on the stem. The mutation is tightly linked to a T-DNA insert. Complementation analysis with genetically characterized trichome mutants revealed that the new mutation is an allele of the GL1 locus. The new trichome mutant has been designated gl1-43. DNA gel blot analysis indicated that the insert site contains a complex array of at least four tandemly linked T-DNA units oriented as both …