Extensive physiological integration in Carex arenaria and Carex disticha in relation to potassium and water availability
(2002) In New Phytologist 156(3). p.469-477- Abstract
- Physiological integration between ramets is beneficial when acquiring heterogeneously distributed resources, and is hypothesized to occur when the benefits of resource sharing outweigh the costs. Our aim was to investigate if resource availability affected physiological integration in Carex arenaria and Carex disticha. Ramet systems were grown in high potassium and high water (K+ W+), high K and low water (K+ W-), or low K and high water (K- W+) for 1 month. Thereafter, water and K transport were traced with erythrosin and rubidium, respectively. Carex arenaria and C. disticha transported erythrosin over seven ramet generations and rubidium throughout the whole ramet system, but C. arenaria exported 20% more rubidium from the labelled... (More)
- Physiological integration between ramets is beneficial when acquiring heterogeneously distributed resources, and is hypothesized to occur when the benefits of resource sharing outweigh the costs. Our aim was to investigate if resource availability affected physiological integration in Carex arenaria and Carex disticha. Ramet systems were grown in high potassium and high water (K+ W+), high K and low water (K+ W-), or low K and high water (K- W+) for 1 month. Thereafter, water and K transport were traced with erythrosin and rubidium, respectively. Carex arenaria and C. disticha transported erythrosin over seven ramet generations and rubidium throughout the whole ramet system, but C. arenaria exported 20% more rubidium from the labelled shoot than C. disticha. A detailed analysis of subset of plants suggested that C. disticha in low K abundance shared more rubidium than in high K abundance, and that C. arenaria ramets in both K+ W- and K- W+ shared more resources than K+ W+ ramets. We demonstrated long-distance resource transport for K and water in C. arenaria and C. disticha. The distance of integration was not affected by resource availability in C. arenaria or C. disticha, but local concentrations of K showed marked and contrasting responses to nutrient and water treatment in both species. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/147144
- author
- D'Hertefeldt, Tina LU and Falkengren-Grerup, Ursula LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- tracers, extensive integrators, rubidium, potassium, erythrosin, clonal plants
- in
- New Phytologist
- volume
- 156
- issue
- 3
- pages
- 469 - 477
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000179411800015
- scopus:0036898357
- ISSN
- 1469-8137
- DOI
- 10.1046/j.1469-8137.2002.00529.x
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Plant Ecology and Systematics (Closed 2011) (011004000), Biodiversity (432112235)
- id
- a90fde92-eca0-4f94-b525-b1ae1ec7a525 (old id 147144)
- date added to LUP
- 2016-04-01 12:21:06
- date last changed
- 2022-02-03 21:01:36
@article{a90fde92-eca0-4f94-b525-b1ae1ec7a525,
abstract = {{Physiological integration between ramets is beneficial when acquiring heterogeneously distributed resources, and is hypothesized to occur when the benefits of resource sharing outweigh the costs. Our aim was to investigate if resource availability affected physiological integration in Carex arenaria and Carex disticha. Ramet systems were grown in high potassium and high water (K+ W+), high K and low water (K+ W-), or low K and high water (K- W+) for 1 month. Thereafter, water and K transport were traced with erythrosin and rubidium, respectively. Carex arenaria and C. disticha transported erythrosin over seven ramet generations and rubidium throughout the whole ramet system, but C. arenaria exported 20% more rubidium from the labelled shoot than C. disticha. A detailed analysis of subset of plants suggested that C. disticha in low K abundance shared more rubidium than in high K abundance, and that C. arenaria ramets in both K+ W- and K- W+ shared more resources than K+ W+ ramets. We demonstrated long-distance resource transport for K and water in C. arenaria and C. disticha. The distance of integration was not affected by resource availability in C. arenaria or C. disticha, but local concentrations of K showed marked and contrasting responses to nutrient and water treatment in both species.}},
author = {{D'Hertefeldt, Tina and Falkengren-Grerup, Ursula}},
issn = {{1469-8137}},
keywords = {{tracers; extensive integrators; rubidium; potassium; erythrosin; clonal plants}},
language = {{eng}},
number = {{3}},
pages = {{469--477}},
publisher = {{Wiley-Blackwell}},
series = {{New Phytologist}},
title = {{Extensive physiological integration in Carex arenaria and Carex disticha in relation to potassium and water availability}},
url = {{http://dx.doi.org/10.1046/j.1469-8137.2002.00529.x}},
doi = {{10.1046/j.1469-8137.2002.00529.x}},
volume = {{156}},
year = {{2002}},
}