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- Title
The Phloem: A Case of Theory Against Experiment.
- Authors
Konrad, Wilfried; Roth‐Nebelsick, Anita
- Abstract
The history of the long‐distance transport systems of vascular plants, phloem, and xylem, is a long and winding road of scientific progress which fascinated and occupied foresters, botanists, and physicists during the last 250 years. Although the Münch pressure flow hypothesis of phloem transport is meanwhile generally accepted, some details are not yet really understood. This pertains especially to the sieve plates whose function within the sieve tubes is controversially debated. Recently, Nakad et al. (2023, https://doi.org/10.1029/2022jg007361) contributed a fresh interpretation of the sieve plates based on a simple experimental setup which allowed to study their effect on phloem flow. Key Points: The Münch pressure flow hypothesis receives growing supportSimple and reproducible experimental approaches are important to understand long‐distance transport phenomenaCoherent theories provide a conceptual framework which can substitute for non‐feasible experiments
- Subjects
VASCULAR system of plants; PHLOEM; TRANSPORT theory; IRON &; steel plates
- Publication
Journal of Geophysical Research. Biogeosciences, 2023, Vol 128, Issue 6, p1
- ISSN
2169-8953
- Publication type
Article
- DOI
10.1029/2023JG007508