Details
| Original language | English |
|---|---|
| Pages (from-to) | 659-672 |
| Number of pages | 14 |
| Journal | Planta |
| Volume | 246 |
| Issue number | 4 |
| Early online date | 16 Jun 2017 |
| Publication status | Published - 1 Oct 2017 |
Abstract
Main conclusion: Xylem flow is progressively shut down during maturation beginning with minor veins at the stylar end and progressing to major veins and finally to bundles at the stem end. This study investigates the functionality of the xylem vascular system in developing sweet cherry fruit (Prunus avium L.). The tracers acid fuchsin and gadoteric acid were fed to the pedicel of detached fruit. The tracer distribution was studied using light microscopy and magnetic resonance imaging. The vasculature of the sweet cherry comprises five major bundles. Three of these supply the flesh; two enter the pit to supply the ovules. All vascular bundles branch into major and minor veins that interconnect via numerous anastomoses. The flow in the xylem as indexed by the tracer distribution decreases continuously during development. The decrease is first evident at the stylar (distal) end of the fruit during pit hardening and progresses basipetally towards the pedicel (proximal) end of the fruit at maturity. That growth strains are the cause of the decreased conductance is indicated by: elastic strain relaxation after tissue excision, the presence of ruptured vessels in vivo, the presence of intrafascicular cavities, and the absence of tyloses.
Keywords
- Acid fuchsin, Conductance, Gadoteric acid, Magnetic resonance imaging, Strain, Stress
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Genetics
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Planta, Vol. 246, No. 4, 01.10.2017, p. 659-672.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Physical rupture of the xylem in developing sweet cherry fruit causes progressive decline in xylem sap inflow rate
AU - Grimm, Eckhard
AU - Pflugfelder, Daniel
AU - van Dusschoten, Dagmar
AU - Winkler, Andreas
AU - Knoche, Moritz
N1 - Publisher Copyright: © 2017, Springer-Verlag GmbH Germany. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Main conclusion: Xylem flow is progressively shut down during maturation beginning with minor veins at the stylar end and progressing to major veins and finally to bundles at the stem end. This study investigates the functionality of the xylem vascular system in developing sweet cherry fruit (Prunus avium L.). The tracers acid fuchsin and gadoteric acid were fed to the pedicel of detached fruit. The tracer distribution was studied using light microscopy and magnetic resonance imaging. The vasculature of the sweet cherry comprises five major bundles. Three of these supply the flesh; two enter the pit to supply the ovules. All vascular bundles branch into major and minor veins that interconnect via numerous anastomoses. The flow in the xylem as indexed by the tracer distribution decreases continuously during development. The decrease is first evident at the stylar (distal) end of the fruit during pit hardening and progresses basipetally towards the pedicel (proximal) end of the fruit at maturity. That growth strains are the cause of the decreased conductance is indicated by: elastic strain relaxation after tissue excision, the presence of ruptured vessels in vivo, the presence of intrafascicular cavities, and the absence of tyloses.
AB - Main conclusion: Xylem flow is progressively shut down during maturation beginning with minor veins at the stylar end and progressing to major veins and finally to bundles at the stem end. This study investigates the functionality of the xylem vascular system in developing sweet cherry fruit (Prunus avium L.). The tracers acid fuchsin and gadoteric acid were fed to the pedicel of detached fruit. The tracer distribution was studied using light microscopy and magnetic resonance imaging. The vasculature of the sweet cherry comprises five major bundles. Three of these supply the flesh; two enter the pit to supply the ovules. All vascular bundles branch into major and minor veins that interconnect via numerous anastomoses. The flow in the xylem as indexed by the tracer distribution decreases continuously during development. The decrease is first evident at the stylar (distal) end of the fruit during pit hardening and progresses basipetally towards the pedicel (proximal) end of the fruit at maturity. That growth strains are the cause of the decreased conductance is indicated by: elastic strain relaxation after tissue excision, the presence of ruptured vessels in vivo, the presence of intrafascicular cavities, and the absence of tyloses.
KW - Acid fuchsin
KW - Conductance
KW - Gadoteric acid
KW - Magnetic resonance imaging
KW - Strain
KW - Stress
UR - http://www.scopus.com/inward/record.url?scp=85020539053&partnerID=8YFLogxK
U2 - 10.1007/s00425-017-2719-3
DO - 10.1007/s00425-017-2719-3
M3 - Article
C2 - 28623562
AN - SCOPUS:85020539053
VL - 246
SP - 659
EP - 672
JO - Planta
JF - Planta
SN - 0032-0935
IS - 4
ER -