The soybean SAUR (Small Auxin-Up RNA) genes are transcriptionally induced by exogenous auxins within a few minutes after hormone application. This response is specifically induced by auxins primarily in epidermal and cortical cells within elongation zones of hypocotyls and epicotyls. We have previously shown that an 832-bp soybean SAUR promoter/beta-glucuronidase (GUS) reporter gene fusion is r...

Background In the last two decades, herbicide-resistant biotypes of Conyza bonariensis, canadensis, and sumatrensis were identified. Objective: To evaluate herbicide alternatives for control C. to replace simplified management at soybean pre-sowing in no-till system assess potential injury soybeans. Methods Four experiments conducted Palotina, PR, alternative managements herbicides commonly use...

Hormone patterns tailor cell fate decisions during plant organ formation. Among them, auxins and cytokinins are critical phytohormones early development. Nitric oxide (NO) modulates root architecture by the control of auxin spatial patterns. However, NO involvement coordination shoot organogenesis remains unclear. Here, we explore effect development using a phenotypic, cellular, genetic analysi...

The coordinated growth of epidermal cells in plant leaves creates the characteristic jigsaw puzzle appearance of the pavement cells. Now, Xu et al. (2010) report that AUXIN-BINDING PROTEIN 1 mediates auxin activation of two GTPase pathways that antagonistically control planar morphogenesis of leaf epidermal cells to create this distinctive pattern.

* The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, Texas 78712, USA 3 Department of Biology, University of York, Box 373, York YO10 5YW, UK 2 These authors contributed equally to the work ........................................................................................................................................................................