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Physiological roles of Casparian strips and suberin in the transport of water and solutes [PDF]
Summary The formation of Casparian strips (CS) and the deposition of suberin at the endodermis of plant roots are thought to limit the apoplastic transport of water and ions. We investigated the specific role of each of these apoplastic barriers in the control of hydro‐mineral transport by roots and the consequences on shoot growth.
Monica Calvo‐Polanco +12 more
openaire +5 more sources
In this paper, we present a detailed and comprehensive mathematical model of active and passive ion and water transport in plant roots. Two key features are the explicit consideration of the separate, but interconnected, apoplastic, and symplastic ...
Kylie J. Foster, Stanley J. Miklavcic
doaj +1 more source
Cadmium (Cd) is a severely toxic and carcinogenic heavy metal. Cigarette smoking is one of the major source of Cd exposure in humans. Nicotiana tabacum is primarily a leaf Cd accumulator, while Nicotiana rustica is a root Cd accumulator among Nicotiana ...
Wu-Xing Huang +6 more
doaj +1 more source
Plant epithelia: What is the role of the mortar in the wall?
In a growing plant root, the inner vascular system is sealed off by an epithelium, the endodermis. The space between all of the cells in the endodermal layer is filled with an impermeable mass called the Casparian strip, which closes the spaces between ...
Michael Palmgren
doaj +1 more source
Plant biology: building barriers... in roots [PDF]
The Casparian strip is an important barrier regulating water and nutrient uptake into root tissues. New research reveals two peptide signals and their co-receptors play critical roles patterning and maintaining barrier ...
Bennett, Malcolm J. +3 more
core +3 more sources
Three OsMYB36 members redundantly regulate Casparian strip formation at the root endodermis
Abstract Plants have evolved a lignin-based Casparian strip (CS) in roots that restricts passive diffusion of mineral elements from the soil to the stele. However, the molecular mechanisms underlying CS formation in rice (Oryza sativa), which contains a CS at both the exodermis and endodermis, are poorly understood.
Zhigang Wang +9 more
openaire +2 more sources
Borrowed alleles and convergence in serpentine adaptation [PDF]
ACKNOWLEDGMENTS. We thank members of the L.Y. and K.B. laboratories for helpful discussions. This work was supported through the European Research Council Grant StG CA629F04E (to L.Y.); a Harvard University Milton Fund Award (to K.B.); Ruth L ...
Arnold, Brian J. +7 more
core +2 more sources
Characterization of Oligopeptides in Solanum lycopersicum Xylem Exudates
The xylem is the main pathway for the transport of water and molecules from roots to shoots. To date, it has been reported that secreted oligopeptides mediate root-to-shoot signaling, and some long-distance mobile oligopeptides have been detected in ...
Satoru Okamoto +2 more
doaj +1 more source
Plant ionomics: from elemental profiling to environmental adaptation [PDF]
Ionomics is a high-throughput elemental profiling approach to study the molecular mechanistic basis underlying mineral nutrient and trace element composition (also known as the ionome) of living organisms.
Abe +87 more
core +2 more sources
Lead Uptake, Toxicity, and Detoxification in Plants [PDF]
Lead has gained considerable attention as a persistent toxic pollutant of concern, partly because it has been prominent in the debate concerning the growing anthropogenic pressure on the environment.
Dumat, Camille +4 more
core +4 more sources

