Salt effects on functional traits in model and in economically important Lotus species

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A common stress on plants is NaCl-derived soil salinity. Genus Lotus comprises model and economically important species, which have been studied regarding physiological responses to salinity. Leaf area ratio (LAR), root length ratio (RLR) and their components, specific leaf area (SLA) and leaf mass...

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Autores principales: Bilenca, David Norberto, Pieckenstain, Fernando Luis, Menéndez, Ana Bernardina
Publicado: 2016
Materias:
Leaf area
Leaf area ratio
Leaf mass fraction
Lotus spp.
Root length ratio
Root mass fraction
Salinity
Specific root length
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14358603_v_n_p_Uchiya
http://hdl.handle.net/20.500.12110/paper_14358603_v_n_p_Uchiya
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_14358603_v_n_p_Uchiya2025-07-30T18:51:24Z Salt effects on functional traits in model and in economically important Lotus species Bilenca, David Norberto Pieckenstain, Fernando Luis Menéndez, Ana Bernardina Leaf area Leaf area ratio Leaf mass fraction Lotus spp. Root length ratio Root mass fraction Salinity Specific root length A common stress on plants is NaCl-derived soil salinity. Genus Lotus comprises model and economically important species, which have been studied regarding physiological responses to salinity. Leaf area ratio (LAR), root length ratio (RLR) and their components, specific leaf area (SLA) and leaf mass fraction (LMF) and specific root length (SRL) and root mass fraction (RMF) might be affected by high soil salinity. We characterised L. tenuis, L. corniculatus, L. filicaulis, L. creticus, L. burtii and L. japonicus grown under different salt concentrations (0, 50, 100 and 150 mm NaCl) on the basis of SLA, LMF, SRL and RMF using PCA. We also assessed effects of different salt concentrations on LAR and RLR in each species, and explored whether changes in these traits provide fitness benefit. Salinity (150 mm NaCl) increased LAR in L. burtii and L. corniculatus, but not in the remaining species. The highest salt concentration caused a decrease of RLR in L. japonicus Gifu, but not in the remaining species. Changes in LAR and RLR would not be adaptive, according to adaptiveness analysis, with the exception of SLA changes in L. corniculatus. PCA revealed that under favourable conditions plants optimise surfaces for light and nutrient acquisition (SLA and SRL), whereas at higher salt concentrations they favour carbon allocation to leaves and roots (LMF and RMF) in detriment to their surfaces. PCA also showed that L. creticus subjected to saline treatment was distinguished from the remaining Lotus species. We suggest that augmented carbon partitioning to leaves and roots could constitute a salt-alleviating mechanism through toxic ion dilution. © 2016 German Botanical Society and The Royal Botanical Society of the Netherlands. Fil:Bilenca, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pieckenstain, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Menéndez, A.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14358603_v_n_p_Uchiya http://hdl.handle.net/20.500.12110/paper_14358603_v_n_p_Uchiya
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Leaf area
Leaf area ratio
Leaf mass fraction
Lotus spp.
Root length ratio
Root mass fraction
Salinity
Specific root length
spellingShingle Leaf area
Leaf area ratio
Leaf mass fraction
Lotus spp.
Root length ratio
Root mass fraction
Salinity
Specific root length
Bilenca, David Norberto
Pieckenstain, Fernando Luis
Menéndez, Ana Bernardina
Salt effects on functional traits in model and in economically important Lotus species
topic_facet Leaf area
Leaf area ratio
Leaf mass fraction
Lotus spp.
Root length ratio
Root mass fraction
Salinity
Specific root length
description A common stress on plants is NaCl-derived soil salinity. Genus Lotus comprises model and economically important species, which have been studied regarding physiological responses to salinity. Leaf area ratio (LAR), root length ratio (RLR) and their components, specific leaf area (SLA) and leaf mass fraction (LMF) and specific root length (SRL) and root mass fraction (RMF) might be affected by high soil salinity. We characterised L. tenuis, L. corniculatus, L. filicaulis, L. creticus, L. burtii and L. japonicus grown under different salt concentrations (0, 50, 100 and 150 mm NaCl) on the basis of SLA, LMF, SRL and RMF using PCA. We also assessed effects of different salt concentrations on LAR and RLR in each species, and explored whether changes in these traits provide fitness benefit. Salinity (150 mm NaCl) increased LAR in L. burtii and L. corniculatus, but not in the remaining species. The highest salt concentration caused a decrease of RLR in L. japonicus Gifu, but not in the remaining species. Changes in LAR and RLR would not be adaptive, according to adaptiveness analysis, with the exception of SLA changes in L. corniculatus. PCA revealed that under favourable conditions plants optimise surfaces for light and nutrient acquisition (SLA and SRL), whereas at higher salt concentrations they favour carbon allocation to leaves and roots (LMF and RMF) in detriment to their surfaces. PCA also showed that L. creticus subjected to saline treatment was distinguished from the remaining Lotus species. We suggest that augmented carbon partitioning to leaves and roots could constitute a salt-alleviating mechanism through toxic ion dilution. © 2016 German Botanical Society and The Royal Botanical Society of the Netherlands.
author Bilenca, David Norberto
Pieckenstain, Fernando Luis
Menéndez, Ana Bernardina
author_facet Bilenca, David Norberto
Pieckenstain, Fernando Luis
Menéndez, Ana Bernardina
author_sort Bilenca, David Norberto
title Salt effects on functional traits in model and in economically important Lotus species
title_short Salt effects on functional traits in model and in economically important Lotus species
title_full Salt effects on functional traits in model and in economically important Lotus species
title_fullStr Salt effects on functional traits in model and in economically important Lotus species
title_full_unstemmed Salt effects on functional traits in model and in economically important Lotus species
title_sort salt effects on functional traits in model and in economically important lotus species
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14358603_v_n_p_Uchiya
http://hdl.handle.net/20.500.12110/paper_14358603_v_n_p_Uchiya
work_keys_str_mv AT bilencadavidnorberto salteffectsonfunctionaltraitsinmodelandineconomicallyimportantlotusspecies
AT pieckenstainfernandoluis salteffectsonfunctionaltraitsinmodelandineconomicallyimportantlotusspecies
AT menendezanabernardina salteffectsonfunctionaltraitsinmodelandineconomicallyimportantlotusspecies
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