Devaki Bhaya

Evolutionary origins of photosynthetic organisms (2000)

Bhaya, Devaki

Abstract New phylogenetic analyses have suggested that a single primary endosymbiosis occurred at the origin of green plants, red algae and glaucophytes.

The role of an alternative sigma factor in motility and pilus formation in the cyanobacterium Synechocystis sp. strain PCC6803

Bhaya, Devaki, Watanabe, Natsu, Ogawa, Teruo, Grossman, Arthur R.

Disruption of a gene for an alternative sigma factor, designated sigF, in the freshwater, unicellular cyanobacterium Synechocystis sp. strain PCC6803 resulted in a pleiotropic phenotype. Most...

The Arabidopsis Information Resource (TAIR): a comprehensive database and web-based information retrieval, analysis, and visualization system for a model plant

Huala, Eva, Dickerman, Allan W., Garcia-Hernandez, Margarita, Weems, Danforth, Reiser, Leonore, LaFond, Frank, ...

Arabidopsis thaliana, a small annual plant belonging to the mustard family, is the subject of study by an estimated 7000 researchers around the world. In addition to the large body of genetic,...

Highly expressed and alien genes of the Synechocystis genome

Mrázek, Jan, Bhaya, Devaki, Grossman, Arthur R., Karlin, Samuel

Comparisons of codon frequencies of genes to several gene classes are used to characterize highly expressed and alien genes on the Synechocystis PCC6803 genome. The primary gene classes include the...

Light regulation of type IV pilus-dependent motility by chemosensor-like elements in Synechocystis PCC6803

Bhaya, Devaki, Takahashi, Akiko, Grossman, Arthur R.

To optimize photosynthesis, cyanobacteria move toward or away from a light source by a process known as phototaxis. Phototactic movement of the cyanobacterium Synechocystis PCC6803 is a...

Isolation of Regulated Genes of the Cyanobacterium Synechocystis sp. Strain PCC 6803 by Differential Display†

Bhaya, Devaki, Vaulot, Daniel, Amin, Pinky, Takahashi, Akiko Watanabe, Grossman, Arthur R.

Global identification of differentially regulated genes in prokaryotes is constrained because the mRNA does not have a 3′ polyadenylation extension; this precludes specific separation of mRNA from...

Novel Motility Mutants of Synechocystis Strain PCC 6803 Generated by In Vitro Transposon Mutagenesis†

Bhaya, Devaki, Takahashi, Akiko, Shahi, Payam, Grossman, Arthur R.

We screened for transposon-generated mutants of Synechocystis sp. strain PCC 6803 that exhibited aberrant phototactic movement. Of the 300 mutants generated, about 50 have been partially...

Multiple Light Inputs Control Phototaxis in Synechocystis sp. Strain PCC6803†

Ng, Wing-On, Grossman, Arthur R., Bhaya, Devaki

The phototactic behavior of individual cells of the cyanobacterium Synechocystis sp. strain PCC6803 was studied with a glass slide-based phototaxis assay. Data from fluence rate-response curves and...

Chlorophyll biosynthesis and assembly into chlorophyll-protein complexes in isolated developing chloroplasts

Bhaya, Devaki, Castelfranco, Paul A.

Isolated developing plastids from greening cucumber cotyledons or from photoperiodically grown pea seedlings incorporated 14C-labeled 5-aminolevulinic acid (ALA) into chlorophyll (Chl). Incorporation...

Optimal Conditions for Translation by Thylakoid-Bound Polysomes from Pea Chloroplasts 1

Bhaya, Devaki, Jagendorf, Andre T.

Polysomes bound to washed thylakoids from pea Pisum sativum cv Progress No. 9 chloroplasts are capable of protein synthesis when supplemented with amino acids, ATP and a regenerating system, GTP, and...

Synthesis of a Putative c-Type Cytochrome by Intact, Isolated Pea Chloroplast 1

Bhaya, Devaki, Castelfranco, Paul A.

In addition to chlorophyll-protein complexes, other proteins were labeled when isolated developing pea (Pisum sativum L.) chloroplasts were incubated with [14C]-5-aminolevulinic acid. The major...

In situ analysis of nitrogen fixation and metabolic switching in unicellular thermophilic cyanobacteria inhabiting hot spring microbial mats

Steunou, Anne-Soisig, Bhaya, Devaki, Bateson, Mary M., Melendrez, Melanie C., Ward, David M., Brecht, Eric, ...

Genome sequences of two Synechococcus ecotypes inhabiting the Octopus Spring microbial mat in Yellowstone National Park revealed the presence of all genes required for nitrogenase biosynthesis. We...

The role of an alternative sigma factor in motility and pilus formation in the cyanobacterium Synechocystis sp. strain PCC6803

Bhaya, Devaki, Watanabe, Natsu, Ogawa, Teruo, Grossman, Arthur R.

Disruption of a gene for an alternative sigma factor, designated sigF, in the freshwater, unicellular cyanobacterium Synechocystis sp. strain PCC6803 resulted in a pleiotropic phenotype. Most...

The Arabidopsis Information Resource (TAIR): a comprehensive database and web-based information retrieval, analysis, and visualization system for a model plant

Huala, Eva, Dickerman, Allan W., Garcia-Hernandez, Margarita, Weems, Danforth, Reiser, Leonore, LaFond, Frank, ...

Arabidopsis thaliana, a small annual plant belonging to the mustard family, is the subject of study by an estimated 7000 researchers around the world. In addition to the large body of genetic,...

Highly expressed and alien genes of the Synechocystis genome

Mrázek, Jan, Bhaya, Devaki, Grossman, Arthur R., Karlin, Samuel

Comparisons of codon frequencies of genes to several gene classes are used to characterize highly expressed and alien genes on the Synechocystis PCC6803 genome. The primary gene classes include the...

Light regulation of type IV pilus-dependent motility by chemosensor-like elements in Synechocystis PCC6803

Bhaya, Devaki, Takahashi, Akiko, Grossman, Arthur R.

To optimize photosynthesis, cyanobacteria move toward or away from a light source by a process known as phototaxis. Phototactic movement of the cyanobacterium Synechocystis PCC6803 is a...

Isolation of Regulated Genes of the Cyanobacterium Synechocystis sp. Strain PCC 6803 by Differential Display†

Bhaya, Devaki, Vaulot, Daniel, Amin, Pinky, Takahashi, Akiko Watanabe, Grossman, Arthur R.

Global identification of differentially regulated genes in prokaryotes is constrained because the mRNA does not have a 3′ polyadenylation extension; this precludes specific separation of mRNA from...

Novel Motility Mutants of Synechocystis Strain PCC 6803 Generated by In Vitro Transposon Mutagenesis†

Bhaya, Devaki, Takahashi, Akiko, Shahi, Payam, Grossman, Arthur R.

We screened for transposon-generated mutants of Synechocystis sp. strain PCC 6803 that exhibited aberrant phototactic movement. Of the 300 mutants generated, about 50 have been partially...

Multiple Light Inputs Control Phototaxis in Synechocystis sp. Strain PCC6803†

Ng, Wing-On, Grossman, Arthur R., Bhaya, Devaki

The phototactic behavior of individual cells of the cyanobacterium Synechocystis sp. strain PCC6803 was studied with a glass slide-based phototaxis assay. Data from fluence rate-response curves and...

Chlorophyll biosynthesis and assembly into chlorophyll-protein complexes in isolated developing chloroplasts

Bhaya, Devaki, Castelfranco, Paul A.

Isolated developing plastids from greening cucumber cotyledons or from photoperiodically grown pea seedlings incorporated 14C-labeled 5-aminolevulinic acid (ALA) into chlorophyll (Chl). Incorporation...

Optimal Conditions for Translation by Thylakoid-Bound Polysomes from Pea Chloroplasts 1

Bhaya, Devaki, Jagendorf, Andre T.

Polysomes bound to washed thylakoids from pea Pisum sativum cv Progress No. 9 chloroplasts are capable of protein synthesis when supplemented with amino acids, ATP and a regenerating system, GTP, and...

Synthesis of a Putative c-Type Cytochrome by Intact, Isolated Pea Chloroplast 1

Bhaya, Devaki, Castelfranco, Paul A.

In addition to chlorophyll-protein complexes, other proteins were labeled when isolated developing pea (Pisum sativum L.) chloroplasts were incubated with [14C]-5-aminolevulinic acid. The major...

In situ analysis of nitrogen fixation and metabolic switching in unicellular thermophilic cyanobacteria inhabiting hot spring microbial mats

Steunou, Anne-Soisig, Bhaya, Devaki, Bateson, Mary M., Melendrez, Melanie C., Ward, David M., Brecht, Eric, ...

Genome sequences of two Synechococcus ecotypes inhabiting the Octopus Spring microbial mat in Yellowstone National Park revealed the presence of all genes required for nitrogenase biosynthesis. We...

Phototaxis and Impaired Motility in Adenylyl Cyclase and Cyclase Receptor Protein Mutants of Synechocystis sp. Strain PCC 6803

Bhaya, Devaki, Nakasugi, Kenlee, Fazeli, Fariba, Burriesci, Matthew S.

We have carefully characterized and reexamined the motility and phototactic responses of Synechocystis sp. adenylyl cyclase (Cya1) and catabolite activator protein (SYCRP1) mutants to different light...

Responses of a Thermophilic Synechococcus Isolate from the Microbial Mat of Octopus Spring to Light▿

Kilian, Oliver, Steunou, Anne-Soisig, Fazeli, Fariba, Bailey, Shaun, Bhaya, Devaki, Grossman, Arthur R.

Thermophilic cyanobacteria of the genus Synechococcus are major contributors to photosynthetic carbon fixation in the photic zone of microbial mats in Octopus Spring, Yellowstone National Park....