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Plant Biology

Selected Works

2015

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Ataf2 Integrates Arabidopsis Brassinosteroid Inactivation And Seedling Photomorphogenesis, Hao Peng, Jianfei Zhao, Michael Neff Oct 2015

Ataf2 Integrates Arabidopsis Brassinosteroid Inactivation And Seedling Photomorphogenesis, Hao Peng, Jianfei Zhao, Michael Neff

Jianfei Zhao

The Arabidopsis thaliana hypocotyl is a robust system for studying the interplay of light and plant hormones, such as brassinosteroids (BRs), in the regulation of plant growth and development. Since BRs cannot be transported between plant tissues, their cellular levels must be appropriate for given developmental fates. BR homeostasis is
maintained in part by transcriptional feedback regulation loops that control the expression of key metabolic enzymes, including the BRinactivating enzymes BAS1 (CYP734A1, formerly CYP72B1) and SOB7 (CYP72C1). Here, we find that the NAC transcription factor (TF) ATAF2 binds the promoters of BAS1 and SOB7 to suppress their expression. ATAF2 restricts …

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A Contribution To The Vascular Flora Of The Sequatchie Valley Within Sequatchie County, Tennessee, John Richard Evans Feb 2015

A Contribution To The Vascular Flora Of The Sequatchie Valley Within Sequatchie County, Tennessee, John Richard Evans

John Evans

The vascular flora of the Sequatchie Valley within Sequatchie County, Tennessee was studied for three growing seasons from 2008 through 2010. The Sequatchie Valley is located within the southeastern portion of the Cumberland Plateau and is generally considered to be part of the Cumberland Plateau Physiographic Province. Nevertheless, a number of geological and ecological factors distinguish the Sequatchie Valley from the elevated Cumberland Plateau, suggesting that the floristic composition of the valley may be different from the surrounding region. Although several previous floristic studies have been conducted on the plateau surface, very little attention has been given to the Sequatchie …

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