Results 41 to 50 of about 26,736 (263)

Barley yellow dwarf virus Infection Leads to Higher Chemical Defense Signals and Lower Electrophysiological Reactions in Susceptible Compared to Tolerant Barley Genotypes

open access: yesFrontiers in Plant Science, 2018
Barley yellow dwarf virus (BYDV) is a phloem limited virus that is persistently transmitted by aphids. Due to huge yield losses in agriculture, the virus is of high economic relevance.
Maria K. Paulmann   +13 more
doaj   +1 more source

Phloem Loading in Squash [PDF]

open access: yesPlant Physiology, 1977
Squash (Cucurbita pepo L. var. melopepo torticalis, Bailey) leaves were supplied with (14)C-sucrose, then specific radioactivities of the glucose and galactose moieties of translocated stachyose were determined. In every case, the specific radioactivity of the galactose moiety was greater than that of the glucose moiety.
openaire   +2 more sources

Model-Based Design of Long-Distance Tracer Transport Experiments in Plants

open access: yesFrontiers in Plant Science, 2018
Studies of long-distance transport of tracer isotopes in plants offer a high potential for functional phenotyping, but so far measurement time is a bottleneck because continuous time series of at least 1 h are required to obtain reliable estimates of ...
Jonas Bühler   +2 more
doaj   +1 more source

The Puzzle of Phloem Pressure [PDF]

open access: yesPlant Physiology, 2010
Although transport of organic nutrients and regulatory molecules in the phloem underlies all aspects of growth and development, we still cannot say with confidence that we adequately understand how it is motivated. A major problem is that it is difficult to reconcile the theory of pressure flow,
openaire   +2 more sources

Arabidopsis Natural Accessions Display Adaptations in Inflorescence Growth and Vascular Anatomy to Withstand High Salinity during Reproductive Growth

open access: yesPlants, 2019
Plant responses to abiotic stresses entail adaptive processes that integrate both physiological and developmental cues. However, the adaptive traits that are involved in the responses to a high soil salinity during reproductive growth are still poorly ...
Sahar Sellami   +7 more
doaj   +1 more source

Phloem-Conducting Cells in Haustoria of the Root-Parasitic Plant Phelipanche aegyptiaca Retain Nuclei and Are Not Mature Sieve Elements

open access: yesPlants, 2017
Phelipanche aegyptiaca parasitizes a wide range of plants, including important crops, and causes serious damage to their production. P. aegyptiaca develops a specialized intrusive organ called a haustorium that establishes connections to the host’s xylem
Minako Ekawa, Koh Aoki
doaj   +1 more source

Anatomy of xylem and phloem in stems and roots of Populus sibirica and Ulmus pumila from semi-arid steppe in Mongolia

open access: yesLes, 2023
The present study focuses on the cambium and the anatomy of secondary tissues (xylem – wood and phloem) of Siberian poplar (Populus sibirica) and Siberian elm (Ulmus pumila) grown in a plantation in the semi-arid Mongolian steppe.
Anastazija Dimitrova   +8 more
doaj   +1 more source

Phloem transport and drought [PDF]

open access: yesJournal of Experimental Botany, 2014
Drought challenges plant water uptake and the vascular system. In the xylem it causes embolism that impairs water transport from the soil to the leaves and, if uncontrolled, may even lead to plant mortality via hydraulic failure. What happens in the phloem, however, is less clear because measuring phloem transport is still a significant challenge to ...
openaire   +2 more sources

Solution-Flow in the Phloem [PDF]

open access: yesPlant Physiology, 1972
Translocation profiles along the path were studied using a modified flap-feeding technique for the simultaneous application of THO and (14)C-sucrose. A re-evaluation of a mathematical model for phloem transport with reversible lateral exchange of tracer along the path indicates that lower apparent velocities for THO as compared to labeled carbohydrate ...
D A, Cataldo, A L, Christy, C L, Coulson
openaire   +2 more sources

Determination of physical characteristics of root vegetables with puncture test [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2011
The aim of this research was to analyze the physical characteristics of root vegetables: carrot, parsley, parsnip and celery. These root vegetables are sold fresh on the market which is why it is important to specify its shape, structure and root texture.
Bajkin Anđelko   +4 more
doaj  

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