Phosphorus addition increased carbon partitioning to autotrophic respiration but not to biomass production in an experiment with Zea mays
Ven, Arne LU ; Verlinden, Melanie S. ; Fransen, Erik ; Olsson, Pål Axel LU ; Verbruggen, Erik ; Wallander, Håkan LU
and Vicca, Sara
(2020)
In Plant, Cell and Environment
43(9).
p.2054-2065
- Abstract
Plant carbon (C) partitioning—the relative use of photosynthates for biomass production, respiration, and other plant functions—is a key but poorly understood ecosystem process. In an experiment with Zea mays, with or without arbuscular mycorrhizal fungi (AMF), we investigated the effect of phosphorus (P) fertilization and AMF on plant C partitioning. Based on earlier studies, we expected C partitioning to biomass production (i.e., biomass production efficiency; BPE) to increase with increasing P addition due to reduced C partitioning to AMF. However, although plant growth was clearly stimulated by P addition, BPE did not increase. Instead, C partitioning to autotrophic respiration increased. These results contrasted with our... (More)
Plant carbon (C) partitioning—the relative use of photosynthates for biomass production, respiration, and other plant functions—is a key but poorly understood ecosystem process. In an experiment with Zea mays, with or without arbuscular mycorrhizal fungi (AMF), we investigated the effect of phosphorus (P) fertilization and AMF on plant C partitioning. Based on earlier studies, we expected C partitioning to biomass production (i.e., biomass production efficiency; BPE) to increase with increasing P addition due to reduced C partitioning to AMF. However, although plant growth was clearly stimulated by P addition, BPE did not increase. Instead, C partitioning to autotrophic respiration increased. These results contrasted with our expectations and with a previous experiment in the same set-up where P addition increased BPE while no effect on autotropic respiration was found. The comparison of both experiments suggests a key role for AMF in explaining these contrasts. Whereas in the previous experiment substantial C partitioning to AMF reduced BPE under low P, in the current experiment, C partitioning to AMF was too low to directly influence BPE. Our results illustrate the complex influence of nutrient availability and mycorrhizal symbiosis on plant C partitioning.
(Less)
- author
- Ven, Arne
LU
; Verlinden, Melanie S.
; Fransen, Erik
; Olsson, Pål Axel
LU
; Verbruggen, Erik
; Wallander, Håkan
LU
and Vicca, Sara
- organization
- publishing date
- 2020-09
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- arbuscular mycorrhizal fungi, autotrophic respiration, biomass production efficiency, carbon allocation, carbon balance, carbon partitioning, carbon use efficiency, phosphorus
- in
- Plant, Cell and Environment
- volume
- 43
- issue
- 9
- pages
- 12 pages
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:85085700650
- pmid:32400909
- ISSN
- 0140-7791
- DOI
- 10.1111/pce.13785
- language
- English
- LU publication?
- yes
- id
- 965c7344-c82b-4a1d-b279-2443bd26056c
- date added to LUP
- 2020-06-15 11:20:04
- date last changed
- 2024-05-29 14:13:45
@article{965c7344-c82b-4a1d-b279-2443bd26056c,
abstract = {{<p>Plant carbon (C) partitioning—the relative use of photosynthates for biomass production, respiration, and other plant functions—is a key but poorly understood ecosystem process. In an experiment with Zea mays, with or without arbuscular mycorrhizal fungi (AMF), we investigated the effect of phosphorus (P) fertilization and AMF on plant C partitioning. Based on earlier studies, we expected C partitioning to biomass production (i.e., biomass production efficiency; BPE) to increase with increasing P addition due to reduced C partitioning to AMF. However, although plant growth was clearly stimulated by P addition, BPE did not increase. Instead, C partitioning to autotrophic respiration increased. These results contrasted with our expectations and with a previous experiment in the same set-up where P addition increased BPE while no effect on autotropic respiration was found. The comparison of both experiments suggests a key role for AMF in explaining these contrasts. Whereas in the previous experiment substantial C partitioning to AMF reduced BPE under low P, in the current experiment, C partitioning to AMF was too low to directly influence BPE. Our results illustrate the complex influence of nutrient availability and mycorrhizal symbiosis on plant C partitioning.</p>}},
author = {{Ven, Arne and Verlinden, Melanie S. and Fransen, Erik and Olsson, Pål Axel and Verbruggen, Erik and Wallander, Håkan and Vicca, Sara}},
issn = {{0140-7791}},
keywords = {{arbuscular mycorrhizal fungi; autotrophic respiration; biomass production efficiency; carbon allocation; carbon balance; carbon partitioning; carbon use efficiency; phosphorus}},
language = {{eng}},
number = {{9}},
pages = {{2054--2065}},
publisher = {{Wiley-Blackwell}},
series = {{Plant, Cell and Environment}},
title = {{Phosphorus addition increased carbon partitioning to autotrophic respiration but not to biomass production in an experiment with Zea mays}},
url = {{http://dx.doi.org/10.1111/pce.13785}},
doi = {{10.1111/pce.13785}},
volume = {{43}},
year = {{2020}},
}