Results 31 to 40 of about 14,195 (271)

Intersection of transfer cells with phloem biology – broad evolutionary trends, function and induction

open access: yesFrontiers in Plant Science, 2013
Transfer cells (TCs) are ubiquitous throughout the plant kingdom. Their unique ingrowth wall labyrinths, supporting a plasma membrane enriched in transporter proteins, provides these cells with an enhanced membrane transport capacity for resources.
Felicity eAndriunas   +4 more
doaj   +1 more source

Diffusion and bulk flow in phloem loading - a theoretical analysis of the polymer trap mechanism in plants [PDF]

open access: yes, 2014
Plants create sugar in the mesophyll cells of their leaves by photosynthesis. This sugar, mostly sucrose, has to be loaded via the bundle sheath into the phloem vascular system (the sieve elements), where it is distributed to growing parts of the plant ...
Bohr, Tomas   +4 more
core   +2 more sources

Minor loading vein acclimation for three Arabidopsis thaliana ecotypes in response to growth under different temperature and light regimes

open access: yesFrontiers in Plant Science, 2013
In light of the important role of foliar phloem as the nexus between energy acquisition through photosynthesis and distribution of the products of photosynthesis to the rest of the plant, as well as communication between the whole plant and its leaves ...
Christopher M Cohu   +3 more
doaj   +1 more source

Plant SWEET Family of Sugar Transporters: Structure, Evolution and Biological Functions

open access: yesBiomolecules, 2022
The SWEET (sugars will eventually be exported transporter) family was identified as a new class of sugar transporters that function as bidirectional uniporters/facilitators and facilitate the diffusion of sugars across cell membranes along a ...
Jialei Ji   +6 more
doaj   +1 more source

Efficient Protein Expression and Virus-Induced Gene Silencing in Plants Using a Crinivirus-Derived Vector. [PDF]

open access: yes, 2018
Plant virus-based vectors are valuable tools for recombinant gene expression and functional genomics for both basic and applied research. In this study, Lettuce infectious yellows virus (LIYV) of the genus Crinivirus was engineered into a virus vector ...
Falk, Bryce W, Qiao, Wenjie
core   +3 more sources

Association between minor loading vein architecture and light- and CO2-saturated rates of photosynthetic oxygen evolution among Arabidopsis thaliana ecotypes from different latitudes

open access: yesFrontiers in Plant Science, 2013
Through microscopic analysis of veins and assessment of light- and CO2-saturated rates of photosynthetic oxygen evolution, we investigated the relationship between minor loading vein anatomy and photosynthesis of mature leaves in three ecotypes of ...
Christopher M Cohu   +4 more
doaj   +1 more source

Emerging Roles of SWEET Sugar Transporters in Plant Development and Abiotic Stress Responses

open access: yesCells, 2022
Sugars are the major source of energy in living organisms and play important roles in osmotic regulation, cell signaling and energy storage. SWEETs (Sugars Will Eventually be Exported Transporters) are the most recent family of sugar transporters that ...
Tinku Gautam   +5 more
doaj   +1 more source

OPT3 is a component of the iron-signaling network between leaves and roots and misregulation of OPT3 leads to an over-accumulation of cadmium in seeds. [PDF]

open access: yes, 2014
Plants and seeds are the main dietary sources of zinc, iron, manganese, and copper, but are also the main entry point for toxic elements such as cadmium into the food chain. We report here that an Arabidopsis oligopeptide transporter mutant, opt3-2, over-
Akmakjian, Garo Z   +10 more
core   +2 more sources

Assessing Long-distance Transport from Photosynthetic Source Leaves to Heterotrophic Sink Organs with [14C]CO2

open access: yesBio-Protocol, 2017
Phloem loading and transport of photoassimilate from photoautotrophic source leaves to heterotrophic sink organs are essential physiological processes that help the disparate organs of a plant function as a single, unified organism.
Umesh Yadav   +4 more
doaj   +1 more source

Ethephon-Induced Ethylene Enhances Starch Degradation and Sucrose Transport with an Interactive Abscisic Acid-Mediated Manner in Mature Leaves of Oilseed rape (Brassica napus L.)

open access: yesPlants, 2021
The leaf senescence process is characterized by the degradation of macromolecules in mature leaves and the remobilization of degradation products via phloem transport. The phytohormone ethylene mediates leaf senescence.
Bok-Rye Lee   +4 more
doaj   +1 more source

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