Results 171 to 180 of about 3,358 (207)

Apoplastic transport across young maize roots: effect of the exodermis

Planta, 1998
The uptake of water and of the fluorescent apoplastic dye PTS (trisodium 3-hydroxy-5,8,10-pyrenetrisulfonate) by root systems of young maize (Zea mays L.) seedlings (age: 11–21 d) has been studied with plants which either developed an exodermis (Casparian band in the hypodermis) or were lacking it.
H. M. Zimmermann, E. Steudle
semanticscholar   +2 more sources

Apoplastic transport of abscisic acid through roots of maize: effect of the exodermis

Planta, 2000
The exodermal layers that are formed in maize roots during aeroponic culture were investigated with respect to the radial transport of cis-abscisic acid (ABA). The decrease in root hydraulic conductivity (Lp(r)) of aeroponically grown roots was stimulated 1.5-fold by ABA (500 nM), reaching Lp(r) values of roots lacking an exodermis.
E. Freundl, E. Steudle, W. Hartung
semanticscholar   +3 more sources

miR397 regulates cadmium stress response by coordinating lignin polymerization in the root exodermis in Kandelia obovata.

Journal of Hazardous Materials
Secondary lignification of the root exodermis of Kandelia obovata is crucial for its response to adversity such as high salinity and anaerobic environment, and this lignification is also effective in blocking cadmium transport to the roots. However, how the differences in lignification of root exodermis at different developmental stages respond to Cd ...
Chenglang Pan, Mingxiong Zhang, Jianming Chen, Haoliang Lu, Xuemei Zhao, Xiaofeng Chen, Lu Wang, Pingping Guo, Shuyu Liu   +8 more
semanticscholar   +3 more sources

Spatial and temporal deposition of suberin during maturation of the onion root exodermis

Botany, 2011
Suberin is a complex biopolymer composed of a poly(aliphatic) domain (SPAD) and a poly(phenolic) domain (SPPD). Suberin is typically confined to specialized cell types including root exodermal cells, but its synthesis in a maturing exodermis is still not well understood.
C. J. Meyer, C. Peterson, M. Bernards
semanticscholar   +2 more sources

Impact of the exodermis on infection of roots by Fusarium culmorum

Plant and Soil, 1994
Patterns of infection withFusarium culmorum (W G Smith) Saccardo were observed in seedling roots of barley (Hordeum vulgare L.), wheat (Triticum aestivum L.), maize (Zea mays L.) and asparagus (Asparagus officinalis L). Apical regions of the main roots were not infected.
Susan A. Kamula, Carol A. Peterson, Colin I. Mayfield   +2 more
openaire   +1 more source

Molecular mechanism of silicon-induced development of Casparian bands in the exodermis of Oryza sativa

, 2018
Silizium (Si) ist das zweithäufigste Element im Boden. Es wird von Gräsern in Form von Kieselsäure aktiv aufgenommen und hat viele positive Effekte auf Pflanzen. Einer dieser Effekte ist die Förderung der Bildung des Casparischen Streifens in Oryza sativa.
Martin Hinrichs
semanticscholar   +2 more sources

Functions of passage cells in the endodermis and exodermis of roots

Physiologia Plantarum, 1996
Passage cells frequently occur in the endodermis and exodermis but are not ubiquitous in either layer. Passage cells occur in the form of short cells in the dimorphic type of exodermis. In both layers, Casparian bands are formed in all cells, but the subsequent development of suberin lamellae and thick, cellulosic walls are delayed or absent in the ...
C. Peterson, Daryl E. Enstone
semanticscholar   +2 more sources

Current insights into the development, structure, and chemistry of the endodermis and exodermis of roots

Canadian Journal of Botany, 2003
The endodermis and exodermis are the inner- and outermost cortical layers, respectively, of a root. Both are characterized by the development of Casparian bands in their anticlinal walls. Endodermal Casparian bands normally appear within 10 mm of the root tip, while exodermal Casparian bands are typically deposited farther from the tip.
Fengshan Ma, C. Peterson
semanticscholar   +2 more sources

Morphological Identity of the Velamen and Exodermis in Orchids

Botanical Gazette, 1944
1. Historical concepts of the velamen and exodermis are reviewed. 2. Twenty species and hybrids, representing thirteen genera of orchids, were investigated to determine the origins of the velamen and exodermis. 3. Fourteen orchid root tips belong to the category of histogens known as type I; the other six belong to Haberlandt's type VI. 4.
openaire   +1 more source

ROOTS OF SOBRALIA MACRANTHA (ORCHIDACEAE): STRUCTURE AND FUNCTION OF THE VELAMEN‐EXODERMIS COMPLEX

American Journal of Botany, 1982
Roots of Sobralia macrantha, a largely terrestrial orchid, bear a typical multilayered velamen underlaid by a cortical exodermis. The latter consists of densely cytoplasmic passage cells regularly interspersed among much larger, elongate, vacuolate cells.
D. Benzing, D. Ott, W. Friedman
semanticscholar   +2 more sources