Apoplastic transport of abscisic acid through roots of maize: effect of the exodermis [PDF]
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
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Effects of Ag and Pb metal accumulation on some biochemical parameters and anatomical characteristics of Sesuvium portulacastrum L. (Aizoaceae) plants [PDF]
The study reported the effect of contamination of Sesuvium portulacastrum L. after exposure to Ag and Pb for four weeks. The results showed that the total protein, chlorophyll, carotene, and biomass declined gradually by elevating the heavy metal ...
Widad M.T. Al-Asadi +3 more
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Asymmetrical development of root endodermis and exodermis in reaction to abiotic stresses [PDF]
Background and Aims In the present study, we show that development of endodermis and exodermis is sensitively regulated by water accessibility. As cadmium (Cd) is known to induce xeromorphic effects in plants, maize roots were exposed also to Cd to understand the developmental process of suberin lamella deposition in response to a local Cd source ...
Denis, Líška +3 more
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Composite Transport Model and Water and Solute Transport across Plant Roots: An Update
The present review examines recent experimental findings in root transport phenomena in terms of the composite transport model (CTM). It has been a well-accepted conceptual model to explain the complex water and solute flows across the root that has been
Yangmin X. Kim +5 more
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A rapid staining method for the detection of suberin lamellae in the root endodermis and exodermis. [PDF]
Histochemical detection of suberin lamellae has remarkably advanced our understanding of the roles of the apoplastic diffusion barrier in the root endodermis and the oxygen diffusion barrier in the root exodermis. Fluorol yellow 088 detects the aliphatic component of suberin and is one of the most reliable stains for detecting suberin lamellae in the ...
Yamauchi T, Li J, Sumi K.
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Exodermis and endodermis are the sites of xanthone biosynthesis in Hypericum perforatum roots [PDF]
Summary Xanthones are specialized metabolites with antimicrobial properties, which accumulate in roots of Hypericum perforatum. This medicinal plant provides widely taken remedies for depressive episodes and skin disorders. Owing to the array of pharmacological activities, xanthone derivatives attract attention for drug design.
Tocci, Noemi +9 more
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Does suberin accumulation in plant roots contribute to waterlogging tolerance?
Plants that are adapted to waterlogged conditions develop aerenchyma in roots for ventilation. Some wetland plant species also form an apoplastic barrier at the outer cell layers of roots that reduces radial oxygen loss (ROL) from the aerenchyma and to ...
Kohtaro eWatanabe +3 more
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Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients [PDF]
Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in ...
Helena J. R. Einzmann +2 more
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Tracing root permeability: comparison of tracer methods
Root epidermis and apoplastic barriers (endodermis and exodermis) are the critical root structures involved in setting up plant-soil interface by regulating free apoplastic movement of solutes within root tissues. Probing root apoplast permeability with "
E. Pecková, E. Tylová, A. Soukup
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CERTAIN STRUCTURAL RESPONSES OF TWO MAIZE CVS. DIFFERing IN THEIR SALT TOLERANCE TO TRACE· ELEMENTS UNDER SALINE CONDITIONS [PDF]
The effects of both salinity at 2.5 dsrn and foliar application with some trace-elements. i.e., Zn, Fe and Mn each alone or in combination on growth and anatomical structure of both roots and leaves of two maize cultivars differing in their salt ...
R. Fouda, A. Arafa, M. Helaly,
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