Results 41 to 50 of about 38,278 (329)

Measurement of sap flow dynamics through the tomato peduncle using a non-invasive sensor based on the heat field deformation method [PDF]

open access: yes, 2013
Recent contradicting evidence on the contributions of xylem and phloem to tomato fruit growth highlights the need for a more thorough insight into the dynamics of sap flow through the tomato peduncle. In fact, knowledge on sap flow dynamics through small
De Swaef, Tom   +3 more
core   +1 more source

BRL1 and BRL3 are novel brassinosteroid receptors that function in vascular differentiation in Arabidopsis [PDF]

open access: yes, 2004
Plant steroid hormones, brassinosteroids (BRs), are perceived by the plasma membrane-localized leucine-rich-repeat-receptor kinase BRI1. Based on sequence similarity, we have identified three members of the BRI1 family, named BRL1, BRL2 and BRL3.
Caño Delgado, Ana   +8 more
core   +1 more source

On the Efficacy of Water Transport in Leaves. A Coupled Xylem-Phloem Model of Water and Solute Transport

open access: yesFrontiers in Plant Science, 2021
In this paper, we present and use a coupled xylem/phloem mathematical model of passive water and solute transport through a reticulated vascular system of an angiosperm leaf.
Gen Sakurai, Stanley J. Miklavcic
doaj   +1 more source

RNA-Mediated Gene Silencing Signals Are Not Graft Transmissible from the Rootstock to the Scion in Greenhouse-Grown Apple Plants Malus sp. [PDF]

open access: yes, 2012
RNA silencing describes the sequence specific degradation of RNA targets. Silencing is a non-cell autonomous event that is graft transmissible in different plant species.
Bai   +37 more
core   +3 more sources

Physiological characterization of drought stress response and expression of two transcription factors and two LEA genes in three Prunus genotypes [PDF]

open access: yes, 2016
Global warming has led to a progressive decrease in rainfall, which is reflected by a reduction of water resources in the soil and a negative effect on crop production in Mediterranean areas.
Bielsa Pérez, Beatriz   +2 more
core   +1 more source

Radiosynthesis of 6'-Deoxy-6'[18F]Fluorosucrose via Automated Synthesis and Its Utility to Study In Vivo Sucrose Transport in Maize (Zea mays) Leaves.

open access: yesPLoS ONE, 2015
Sugars produced from photosynthesis in leaves are transported through the phloem tissues within veins and delivered to non-photosynthetic organs, such as roots, stems, flowers, and seeds, to support their growth and/or storage of carbohydrates.
David Rotsch   +9 more
doaj   +1 more source

Regulation and Identity of Florigen: Flowering Locus T Moves Center Stage [PDF]

open access: yes, 2008
The transition from vegetative to reproductive growth is controlled by day length in many plant species. Day length is perceived in leaves and induces a systemic signal, called florigen, that moves through the phloem to the shoot apex.
Borden KL   +11 more
core   +2 more sources

Long-distance hormone transport via the phloem

open access: yesJournal of Theoretical Biology, 2023
Several key plant hormones are synthesised in the shoot and are advected within the phloem to the root tip. In the root tip, these hormones regulate growth and developmental processes, and responses to environmental cues. However, we lack understanding of how environmental factors and biological parameters affect the delivery of hormones to the root ...
Heather L. Collis   +2 more
openaire   +3 more sources

Linking phloem function to structure: Analysis with a coupled xylem–phloem transport model [PDF]

open access: yesJournal of Theoretical Biology, 2009
We carried out a theoretical analysis of phloem transport based on Münch hypothesis by developing a coupled xylem-phloem transport model. Results showed that the maximum sugar transport rate of the phloem was limited by solution viscosity and that transport requirements were strongly affected by prevailing xylem water potential.
Hölttä, Teemu   +2 more
openaire   +2 more sources

Tree defence and bark beetles in a drying world: carbon partitioning, functioning and modelling. [PDF]

open access: yes, 2020
Drought has promoted large-scale, insect-induced tree mortality in recent years, with severe consequences for ecosystem function, atmospheric processes, sustainable resources and global biogeochemical cycles.
Almuth Hammerbacher   +15 more
core   +1 more source

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