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Is the scaling relationship between carbohydrate storage and leaf biomass in meadow plants affected by the disturbance regime
J. Klimešová, Š. Janecek, A. Bartušková, M. Bartoš, J. Altman, J. Doležal, V. Lanta, V. Latzel,
Jazyk angličtina Země Anglie, Velká Británie
Typ dokumentu časopisecké články
NLK
PubMed Central
od 1995 do Před 1 rokem
Europe PubMed Central
od 1995 do Před 1 rokem
Open Access Digital Library
od 1993-01-01
Medline Complete (EBSCOhost)
od 1996-01-01 do Před 1 rokem
PubMed
29190353
DOI
10.1093/aob/mcx111
Knihovny.cz E-zdroje
- MeSH
- biomasa * MeSH
- ekosystém * MeSH
- listy rostlin fyziologie MeSH
- Magnoliopsida fyziologie MeSH
- metabolismus sacharidů * MeSH
- pastviny MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
Background and Aims: Below-ground carbohydrate storage is considered an adaptation of plants aimed at regeneration after disturbance. A theoretical model by Iwasa and Kubo was empirically tested which predicted (1) that storage of carbohydrates scales allometrically with leaf biomass and (2) when the disturbance regime is relaxed, the ratio of storage to leaf biomass increases, as carbohydrates are not depleted by disturbance. Methods: These ideas were tested on nine herbaceous species from a temperate meadow and the disturbance regime was manipulated to create recently abandoned and mown plots. Just before mowing in June and at the end of the season in October, plants with below-ground organs were sampled. The material was used to assess the pool of total non-structural carbohydrates and leaf biomass. Key Results: In half of the cases, a mostly isometric relationship between below-ground carbohydrate storage and leaf biomass in meadow plants was found. The ratio of below-ground carbohydrate storage to leaf biomass did not change when the disturbance regime was less intensive than that for which the plants were adapted. Conclusions: These findings (isometric scaling relationship between below-ground carbohydrate storage and leaf biomass; no effect of a relaxed disturbance regime) imply that storage in herbs is probably governed by factors other than just the disturbance regime applied once in a growing season.
Institute of Botany of the Czech Academy of Sciences Dukelská 135 CZ 379 82 Trebon Czech Republic
Institute of Botany of the Czech Academy of Sciences Zámek 1 CZ 252 43 Pruhonice Czech Republic
Citace poskytuje Crossref.org
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