Results 31 to 40 of about 76,140 (304)

Analysis of Metabolomic Changes in Xylem and Phloem Sap of Cucumber under Phosphorus Stresses

open access: yesMetabolites, 2022
Cucumber xylem and phloem sap is a key link in nutrient distribution, transportation and signal transduction of cucumber plants; however, the metabolic response mechanism of cucumber xylem and phloem sap under phosphorus stress has not been clearly ...
Jingjing Sun   +3 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

Testing the Münch hypothesis of long distance phloem transport in plants

open access: yeseLife, 2016
Long distance transport in plants occurs in sieve tubes of the phloem. The pressure flow hypothesis introduced by Ernst Münch in 1930 describes a mechanism of osmotically generated pressure differentials that are supposed to drive the movement of sugars ...
Michael Knoblauch   +8 more
doaj   +1 more source

A Pathogen Secreted Protein as a Detection Marker for Citrus Huanglongbing. [PDF]

open access: yes, 2017
The citrus industry is facing an unprecedented crisis due to Huanglongbing (HLB, aka citrus greening disease), a bacterial disease associated with the pathogen Candidatus Liberibacter asiaticus (CLas) that affects all commercial varieties. Transmitted by
Agustina D. Francesco   +18 more
core   +2 more sources

Under pressure

open access: yeseLife, 2016
The movement of water by osmosis causes pressure differences that drive the transport of sugars over long distances in plants.
Ulrich Z Hammes
doaj   +1 more source

Low Temperature Tolerance of Apple Shoots Following Exposure to Warm Temperatures in Late Winter

open access: yesHortScience, 2021
The goal of this research was to evaluate resistance of apple rootstocks to late winter deacclimation during a 2-day exposure to warm temperatures in Maine.
Renae E. Moran   +3 more
doaj   +1 more source

Automated quantitative histology reveals vascular morphodynamics during Arabidopsis hypocotyl secondary growth

open access: yeseLife, 2014
Among various advantages, their small size makes model organisms preferred subjects of investigation. Yet, even in model systems detailed analysis of numerous developmental processes at cellular level is severely hampered by their scale.
Martial Sankar   +4 more
doaj   +1 more source

Characteristics of C-4 photosynthesis in stems and petioles of C-3 flowering plants [PDF]

open access: yes, 2002
Most plants are known as C-3 plants because the first product of photosynthetic CO2 fixation is a three-carbon compound. C-4 plants, which use an alternative pathway in which the first product is a four-carbon compound, have evolved independently many ...
A Ben Zioni   +29 more
core   +1 more source

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

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

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