Results 71 to 80 of about 13,394 (207)

Root nodule structure in Chamaecytisus podolicus

open access: yesActa Agrobotanica, 2017
By means of microscopic analyses, it was shown that root nodules formed by Chamaecytisus podolicus exhibited all structural features typical for indeterminate nodules of temperate genistean shrubs: (i) apical nodule meristem composed of infected and non ...
Monika Skawińska   +4 more
doaj   +1 more source

Sobre la distribución del almidón en las Lycopodyales [PDF]

open access: yes, 1988
Se realiza una descripción de las zonas donde se acumula almidón, tanto en el tallo erecto como en el rastrero de Lycopodiales, observando que su disposición depende, en las especies estudiadas, del biótipo y de la anatomía.A detailed description of the ...
Ibars, Ana María   +3 more
core   +4 more sources

Linking Superoxide Production and Scavenging in Plant Development

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Due to their strong oxidizing potential, rapid membrane permeability, and high reactivity, reactive oxygen species (ROS) play essential roles in plant development and stress responses. Superoxide (O2•‐) is a primary product of molecular oxygen reduction and a crucial source of hydrogen peroxide, representing a ROS species of substantial ...
Jan Řehák   +3 more
wiley   +1 more source

A Missing Link in Radial Ion Transport: Ion Transporters in the Endodermis

open access: yesFrontiers in Plant Science, 2019
In higher plants, roots have important functions, such as the acquisition of water and ions, as well as transportation into the aerial parts of the plant via the xylem vessels.
Zhulatai Bao   +4 more
doaj   +1 more source

Root zone-specific localization of AMTs determines ammonium transport pathways and nitrogen allocation to shoots. [PDF]

open access: yesPLoS Biology, 2018
In plants, nutrient provision of shoots depends on the uptake and transport of nutrients across the root tissue to the vascular system. Nutrient delivery to the vasculature is mediated via the apoplastic transport pathway (ATP), which uses the free space
Fengying Duan   +4 more
doaj   +1 more source

Helictochloa Romero Zarco (Poaceae), a new genus of oat grass [PDF]

open access: yes, 2011
Morphological and anatomical characters used to separate the genera related to Avena L. (Poaceae: Aveneae) are analyzed. The taxonomic importance of these characters is discussed with regard to recent molecular studies. Six genera of peren- nial oats are
Romero Zarco, Carlos Manuel
core   +1 more source

PIF1 Regulates Plastid Development by Repressing Photosynthetic Genes in the Endodermis [PDF]

open access: yesMolecular Plant, 2016
Mutations in Phytochrome Interacting Factors (PIFs) induce a conversion of the endodermal amyloplasts necessary for gravity sensing to plastids with developed thylakoids accompanied by abnormal activation of photosynthetic genes in the dark. In this study, we investigated how PIFs regulate endodermal plastid development by performing comparative ...
Keunhwa, Kim   +7 more
openaire   +2 more sources

Potassium silicate improves cellular sodium homeostasis in wheat (Triticum aestivum L.) cultivars differing in salt resistance

open access: yesPlant Biology, EarlyView.
Potassium silicate can decrease the uptake of sodium (Na+) into wheat cells by affecting the Na+ uptake channels and increasing ion homeostasis. Abstract Salinity causes negative impacts on crops. We investigated the effect of potassium silicate (K2SiO3) on the cytosolic uptake of sodium, [Na+]cyt, in mesophyll protoplasts of wheat cultivars differing ...
M. T. Javed, S. H. Morgan, S. Lindberg
wiley   +1 more source

The structure of the endodermis during the development of pea (Pisum sativum L.) roots

open access: yesActa Societatis Botanicorum Poloniae, 2014
It is shown on the basis of cytological studies that during the development of the pea root endodermis, the following structures were formed (in order of appearance): proendodermis, Casparian strips, suberin lamellae and secondary cell walls.
Joanna Kopcińska   +1 more
doaj   +1 more source

Silicon Promotes Exodermal Casparian Band Formation in Si-Accumulating and Si-Excluding Species by Forming Phenol Complexes [PDF]

open access: yes, 2015
We studied the effect of Silicon (Si) on Casparian band (CB) development, chemical composition of the exodermal CB and Si deposition across the root in the Si accumulators rice and maize and the Si non-accumulator onion.
Fleck, Alexander T.   +6 more
core   +4 more sources

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