Results 31 to 40 of about 2,742 (199)

Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients [PDF]

open access: yesActa Botânica Brasílica
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
doaj   +2 more sources

Tracing root permeability: comparison of tracer methods

open access: yesBiologia Plantarum, 2016
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
doaj   +1 more source

Early development of epiphytic roots: perspectives based on the composition of the velamen cell wall [PDF]

open access: yesActa Botânica Brasílica, 2021
The velamen, a root structure of some epiphytic species for water uptake, usually is stratified epidermis consisting of dead cells. In general, its cell walls exhibit variation during development, including in thickness and amount and type of impregnated
Luísa Gouveia Lana   +4 more
doaj   +1 more source

A rapid staining method for the detection of suberin lamellae in the root endodermis and exodermis. [PDF]

open access: yesPlant Biotechnol (Tokyo)
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.
europepmc   +2 more sources

Pythium species from rice roots differ in virulence, host colonization and nutritional profile [PDF]

open access: yes, 2013
Background: Progressive yield decline in Philippine aerobic rice fields has been recently associated with three closely related Pythium spp., P. arrhenomanes, P. graminicola and P. inflatum.
Höfte, Monica, Van Buyten, Evelien
core   +1 more source

Exodermis lignification impacts lateral root emergence in Brachypodium distachyon

open access: yes
Summary Rationale The mechanisms controlling lateral root emergence in monocots, particularly the role of the exodermis, are poorly understood. We investigated how natural variation in the Brachypodium distachyon stress response shapes root system architecture by modulating cell wall dynamics.
Bellande K   +7 more
europepmc   +2 more sources

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

open access: yesPlanta, 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
openaire   +4 more sources

Prevention of Radial Oxygen Loss Is Associated With Exodermal Suberin Along Adventitious Roots of Annual Wild Species of Echinochloa

open access: yesFrontiers in Plant Science, 2019
Internal aeration is crucial for root growth under waterlogged conditions. Some wetland plants have a structural barrier that impedes oxygen leakage from the basal part of roots called a radial oxygen loss (ROL) barrier.
Masato Ejiri, Katsuhiro Shiono
doaj   +1 more source

An updated protocol for high throughput plant tissue sectioning [PDF]

open access: yes, 2017
Quantification of the tissue and cellular structure of plant material is essential for the study of a variety of plant sciences applications. Currently, many methods for sectioning plant material are either low throughput or involve free-hand sectioning ...
Atkinson, Jonathan A., Wells, Darren M.
core   +1 more source

Exodermis and endodermis are the sites of xanthone biosynthesis in Hypericum perforatum roots [PDF]

open access: yesNew Phytologist, 2017
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
openaire   +4 more sources

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