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Plant Sciences

University of Kentucky

Series

2017

Tobacco

Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

Reducing Biomass Recalcitrance By Heterologous Expression Of A Bacterial Peroxidase In Tobacco (Nicotiana Benthamiana), Ayalew Ligaba-Osena, Bertrand Hankoua, Kay Dimarco, Robert Pace, Mark Crocker, Jesse Mcatee, Nivedita Nagachar, Ming Tien, Tom L. Richard Dec 2017

Reducing Biomass Recalcitrance By Heterologous Expression Of A Bacterial Peroxidase In Tobacco (Nicotiana Benthamiana), Ayalew Ligaba-Osena, Bertrand Hankoua, Kay Dimarco, Robert Pace, Mark Crocker, Jesse Mcatee, Nivedita Nagachar, Ming Tien, Tom L. Richard

Center for Applied Energy Research Faculty and Staff Publications

Commercial scale production of biofuels from lignocellulosic feed stocks has been hampered by the resistance of plant cell walls to enzymatic conversion, primarily owing to lignin. This study investigated whether DypB, the lignin-degrading peroxidase from Rodococcus jostii, depolymerizes lignin and reduces recalcitrance in transgenic tobacco (Nicotiana benthamiana). The protein was targeted to the cytosol or the ER using ER-targeting and retention signal peptides. For each construct, five independent transgenic lines were characterized phenotypically and genotypically. Our findings reveal that expression of DypB in the cytosol and ER does not affect plant development. ER-targeting increased protein accumulation, and …


Co-Opting Atp-Generating Glycolytic Enzyme Pgk1 Phosphoglycerate Kinase Facilitates The Assembly Of Viral Replicase Complexes, K. Reddisiva Prasanth, Chingkai Chuang, Peter D. Nagy Oct 2017

Co-Opting Atp-Generating Glycolytic Enzyme Pgk1 Phosphoglycerate Kinase Facilitates The Assembly Of Viral Replicase Complexes, K. Reddisiva Prasanth, Chingkai Chuang, Peter D. Nagy

Plant Pathology Faculty Publications

The intricate interactions between viruses and hosts include exploitation of host cells for viral replication by using many cellular resources, metabolites and energy. Tomato bushy stunt virus (TBSV), similar to other (+)RNA viruses, induces major changes in infected cells that lead to the formation of large replication compartments consisting of aggregated peroxisomal and ER membranes. Yet, it is not known how TBSV obtains the energy to fuel these energy-consuming processes. In the current work, the authors discovered that TBSV co-opts the glycolytic ATP-generating Pgk1 phosphoglycerate kinase to facilitate the assembly of new viral replicase complexes. The recruitment of Pgk1 into …


Genome Sequence Variation In The Constricta Strain Dramatically Alters The Protein Interaction And Localization Map Of Potato Yellow Dwarf Virus, Chanyong Jang, Renyuan Wang, Joseph Wells, Fabian Leon, Mark Farman, John Hammond, Michael M. Goodin Jun 2017

Genome Sequence Variation In The Constricta Strain Dramatically Alters The Protein Interaction And Localization Map Of Potato Yellow Dwarf Virus, Chanyong Jang, Renyuan Wang, Joseph Wells, Fabian Leon, Mark Farman, John Hammond, Michael M. Goodin

Plant Pathology Faculty Publications

The genome sequence of the constricta strain of Potato yellow dwarf virus (CYDV) was determined to be 12 792 nt long and organized into seven ORFs with the gene order 3′-N-X-P-Y-M-G-L-5′, which encodes the nucleocapsid, phospho, movement, matrix, glyco, and RNA-dependent RNA polymerase proteins, respectively, except for X, which is of unknown function. Cloned ORFs for each gene, except L, were used to construct a protein interaction and localization map (PILM) for this virus, which shares greater than 80 % amino acid similarity in all ORFs except X and P with the sanguinolenta strain of this species (SYDV). Protein localization …