Results 41 to 50 of about 1,784,085 (182)

Testing the Münch hypothesis of long distance phloem transport in plants

eLife, 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, Jan Knoblauch, Daniel L Mullendore, Jessica A Savage, Benjamin A Babst, Sierra D Beecher, Adam C Dodgen, Kaare H Jensen, N Michele Holbrook   +8 more
doaj   +1 more source

Branched Pectic Galactan in Phloem-Sieve-Element Cell Walls: Implications for Cell Mechanics [PDF]

, 2017
A major question in plant biology concerns the specification and functional differentiation of cell types. This is in the context of constraints imposed by networks of cell walls that both adhere cells and contribute to the form and function of ...
Andersen, Mathias Christian Franch, Anderson, M. C. F., Willats, WGT, Susan E. Marcus, Kračun, Stjepan K., Gro Rydahl, Maja, O'Neill R, Valérie Cornuault, Lauder, RP, Rachel O’Neill, Mathias C. F. Andersen, Cornuault VRG, Knox, JP, Pose, Sara, Rebecca P. Lauder, Lauder, Rebecca P., Willats WGT, Townsend BJ, Willats, William G. T., Sara Pose, Knox, J. P., Rydahl MG, Townsend, BJ, Willats, W. G. T., Andersen MCF, Clausen, M. H., Clausen, Mads H., Clausen, Mads Hartvig, William G. T. Willats, Torode, Thomas A., Braybrook, SA, Braybrook SA, Kracun, S. K., O'Neill, R, Braybrook, S. A., Kračun, SK, Clausen MH, O’Neill, Rachel, Cornuault, V., Knox JP, Belinda J. Townsend, Lauder, R. P., Andersen, MCF, Marcus SE, Mads H. Clausen, Torode, T. A., Marcus, S. E., Rydahl, M. G., Marcus, Susan E., Pose, S, Gro Rydahl, M, O'Neill, Rachel E., Andersen, Mathias C. F., Kracun SK, J. Paul Knox, Clausen, MH, Torode, TA, O'Neill, Rachel, Braybrook, Siobhan A., Cornuault, V, Cornuault, Valérie, Torode TA, Rydahl, Maja Gro, Thomas A. Torode, Kracun, Stjepan Kresimir, Siobhan A. Braybrook, Knox, J. Paul, Lauder RP, Marcus, SE, Maja Gro Rydahl, Pose S, Pose, S., Townsend, B. J., Willats, William George Tycho, Stjepan K. Kračun, O'Neill, R., Townsend, Belinda J.   +76 more
core   +1 more source

Under pressure

eLife, 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

Brown planthopper (N. lugens Stal) feeding behaviour on rice germplasm as an indicator of resistance. [PDF]

PLoS ONE, 2011
BACKGROUND: The brown planthopper (BPH) Nilaparvata lugens (Stal) is a serious pest of rice in Asia. Development of novel control strategies can be facilitated by comparison of BPH feeding behaviour on varieties exhibiting natural genetic variation, and ...
Mohamad Bahagia A B Ghaffar, Jeremy Pritchard, Brian Ford-Lloyd   +2 more
doaj   +1 more source

SUT2, a Putative Sucrose Sensor in Sieve Elements [PDF]

The Plant Cell, 2000
In leaves, sucrose uptake kinetics involve high- and low-affinity components. A family of low- and high-affinity sucrose transporters (SUT) was identified. SUT1 serves as a high-affinity transporter essential for phloem loading and long-distance transport in solanaceous species.
Barker, L., Kühn, C., Weise, A., Schulz, A., Gebhardt, C., Hirner, B., Hellmann, H., Schulze, W., Ward, J. M., Frommer, W. B.   +9 more
openaire   +3 more sources

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

Plants, 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

To feed or not to feed: plant factors located in the epidermis, mesophyll, and sieve elements influence pea aphid's ability to feed on legume species. [PDF]

PLoS ONE, 2013
The pea aphid (Acyrthosiphon pisum Harris), a legume specialist, encompasses at least 11 genetically distinct sympatric host races. Each host race shows a preference for a certain legume species.
Alexander Schwarzkopf, Daniel Rosenberger, Martin Niebergall, Jonathan Gershenzon, Grit Kunert   +4 more
doaj   +1 more source

Stress analysis and optimization of coarse aggregate of large stone porous asphalt mixture based on discrete element method

Case Studies in Construction Materials, 2023
The content of fine aggregate and asphalt in large stone porous asphalt mixture (LSPM) is low, and the load is mainly borne by the stable skeleton structure formed by the interlocking between coarse aggregates.
Zhaocheng Li, Dongdong Han, Yongli Zhao
doaj   +1 more source

Role of the phloem in the biochemistry and ecophysiology of benzylisoquinoline alkaloid metabolism

Frontiers in Plant Science, 2013
Benzylisoquinoline alkaloids (BIAs) are a diverse group of biologically active specialized metabolites produced mainly in four plant families. BIA metabolism is likely of monophyletic origin and involves multiple enzymes yielding structurally diverse ...
Eun-Jeong eLee, Jillian eHagel, Peter eFacchini   +2 more
doaj   +1 more source

Electrophysiological approach to determine kinetic parameters of sucrose uptake by single sieve elements or phloem parenchyma cells in intact Vicia faba plants

Frontiers in Plant Science, 2013
Apart from a few using cut aphid stylets, no attempts have been made thus far to measure in vivo sucrose-uptake properties of sieve elements. We investigated the kinetics of sucrose uptake by single sieve elements and phloem parenchyma cells in Vicia ...
Jens B. Hafke, Sabina-Roxana eHöll, Christina eKühn, Aart J.E. Van Bel   +3 more
doaj   +1 more source