Canadian Science Publishing
cjb-2016-0156f2
Article Title: Auxin cell biology in plant pattern formation
Author: Adriana E. Caragea, Thomas Berleth
Citation: Botany, 2017, 95(4): 357-368, doi.org/10.1139/cjb-2016-0156
Source: dx.doi.org/10.1139/cjb-2016-0156
Caption: Fig. 2. Schematic representation of Arabidopsis embryo development and of the coupled auxin distribution. (A) After the first division of the zygote, PIN7 (blue arrow) promotes the auxin transport from the suspensor (s.) towards the apical cell. (B) Octant stage: the apical–basal subdivision in the upper tier (u.t.) and lower tier (l.t.); auxin is distributed homogenously in the embryo by PIN1 (red arrows). (C) Dermatogen stage: the protoderm is specified (pd.) through which auxin is distributed through PIN1 towards the apex. (D) Globular stage: the divisions of the inner cells (i.c.) are oriented in the apical–basal direction; auxin flow, directed by PIN1, is internalized towards the uppermost suspensor cell; the flow of auxin by PIN7 in the suspensor is also reverted. (E) Heart stage: the upper tier developed in two symmetrical cotyledon primordia (c.p) and the lower tier to the vascular tissue (v.t); the uppermost suspensor cell forms the hypophyseal cell (h.c.); the auxin flux is oriented in the epidermis (ep.) towards the incipient cotyledons and internalized through the vascular tissue towards the root pole. (F) Mid-torpedo stage: the cotyledons (co.) are enlarging as well as the hypocotyl (hy.), the shoot apical meristem (SAM) and the root apical meristems (RAM) are defined (Izhaki and Bowman 2007; Capron et al. 2009; Petrasek and Friml 2009; Wabnik et al. 2013). Figure modified from figure 2 in Petrasek and Friml 2009. www.nrcresearchpress.com/journal/cjb
For rights and permission, click he86 re [bit.ly/1pL1c5f]
cjb-2016-0156f2
Article Title: Auxin cell biology in plant pattern formation
Author: Adriana E. Caragea, Thomas Berleth
Citation: Botany, 2017, 95(4): 357-368, doi.org/10.1139/cjb-2016-0156
Source: dx.doi.org/10.1139/cjb-2016-0156
Caption: Fig. 2. Schematic representation of Arabidopsis embryo development and of the coupled auxin distribution. (A) After the first division of the zygote, PIN7 (blue arrow) promotes the auxin transport from the suspensor (s.) towards the apical cell. (B) Octant stage: the apical–basal subdivision in the upper tier (u.t.) and lower tier (l.t.); auxin is distributed homogenously in the embryo by PIN1 (red arrows). (C) Dermatogen stage: the protoderm is specified (pd.) through which auxin is distributed through PIN1 towards the apex. (D) Globular stage: the divisions of the inner cells (i.c.) are oriented in the apical–basal direction; auxin flow, directed by PIN1, is internalized towards the uppermost suspensor cell; the flow of auxin by PIN7 in the suspensor is also reverted. (E) Heart stage: the upper tier developed in two symmetrical cotyledon primordia (c.p) and the lower tier to the vascular tissue (v.t); the uppermost suspensor cell forms the hypophyseal cell (h.c.); the auxin flux is oriented in the epidermis (ep.) towards the incipient cotyledons and internalized through the vascular tissue towards the root pole. (F) Mid-torpedo stage: the cotyledons (co.) are enlarging as well as the hypocotyl (hy.), the shoot apical meristem (SAM) and the root apical meristems (RAM) are defined (Izhaki and Bowman 2007; Capron et al. 2009; Petrasek and Friml 2009; Wabnik et al. 2013). Figure modified from figure 2 in Petrasek and Friml 2009. www.nrcresearchpress.com/journal/cjb
For rights and permission, click he86 re [bit.ly/1pL1c5f]