Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia
Background and Aims: Plants are likely to invest in multiple defences, given the variety of sources of biotic and abiotic damage to which they are exposed. However, little is known about syndromes of defence across plant species and how these differ in contrasting environments. Here an investigation is made into the association between carbon-based chemical and mechanical defences, predicting that species that invest heavily in mechanical defence of leaves will invest less in chemical defence. Methods: A combination of published and unpublished data is used to test whether species with tougher leaves have lower concentrations of phenolics, using 125 species from four regions of Australia and the Pacific island of New Caledonia, in evergreen vegetation ranging from temperate shrubland and woodland to tropical shrubland and rainforest. Foliar toughness was measured as work-to-shear and specific work-to-shear (work-to-shear per unit leaf thickness). Phenolics were measured as 'total phenolics' and by protein precipitation (an estimate of tannin activity) per leaf dry mass. Key Results: Contrary to prediction, phenolic concentrations were not negatively correlated with either measure of leaf toughness when examined across all species, within regions or within any plant community. Instead, measures of toughness (particularly work-to-shear) and phenolics were often positively correlated in shrubland and rainforest (but not dry forest) in New Caledonia, with a similar trend suggested for shrubland in south-western Australia. The common feature of these sites was low concentrations of soil nutrients, with evidence of P limitation. Conclusions: Positive correlations between toughness and phenolics in vegetation on infertile soils suggest that additive investment in carbon-based mechanical and chemical defences is advantageous and cost-effective in these nutrient-deficient environments where carbohydrate may be in surplus.
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F60 - Physiologie et biochimie végétale K01 - Foresterie - Considérations générales L51 - Physiologie animale - Nutrition 000 - Autres thèmes feuille composé phénolique propriété physicochimique composition chimique répulsif d'origine végétale pâturage forêt tropicale savane plante d'abroutissement arbuste http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5772 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_1794 http://aims.fao.org/aos/agrovoc/c_25258 http://aims.fao.org/aos/agrovoc/c_25243 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_9458 http://aims.fao.org/aos/agrovoc/c_26823 http://aims.fao.org/aos/agrovoc/c_714 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 F60 - Physiologie et biochimie végétale K01 - Foresterie - Considérations générales L51 - Physiologie animale - Nutrition 000 - Autres thèmes feuille composé phénolique propriété physicochimique composition chimique répulsif d'origine végétale pâturage forêt tropicale savane plante d'abroutissement arbuste http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5772 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_1794 http://aims.fao.org/aos/agrovoc/c_25258 http://aims.fao.org/aos/agrovoc/c_25243 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_9458 http://aims.fao.org/aos/agrovoc/c_26823 http://aims.fao.org/aos/agrovoc/c_714 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 |
spellingShingle |
F60 - Physiologie et biochimie végétale K01 - Foresterie - Considérations générales L51 - Physiologie animale - Nutrition 000 - Autres thèmes feuille composé phénolique propriété physicochimique composition chimique répulsif d'origine végétale pâturage forêt tropicale savane plante d'abroutissement arbuste http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5772 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_1794 http://aims.fao.org/aos/agrovoc/c_25258 http://aims.fao.org/aos/agrovoc/c_25243 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_9458 http://aims.fao.org/aos/agrovoc/c_26823 http://aims.fao.org/aos/agrovoc/c_714 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 F60 - Physiologie et biochimie végétale K01 - Foresterie - Considérations générales L51 - Physiologie animale - Nutrition 000 - Autres thèmes feuille composé phénolique propriété physicochimique composition chimique répulsif d'origine végétale pâturage forêt tropicale savane plante d'abroutissement arbuste http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5772 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_1794 http://aims.fao.org/aos/agrovoc/c_25258 http://aims.fao.org/aos/agrovoc/c_25243 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_9458 http://aims.fao.org/aos/agrovoc/c_26823 http://aims.fao.org/aos/agrovoc/c_714 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 Read, Jennifer Sanson, Gordon D. Caldwell, Elizabeth Clissold, Fiona J. Chatain, Alex Peeters, Paula Lamont, Byron B. De Garine-Wichatitsky, Michel Jaffré, Tanguy Kerr, Stuart Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia |
description |
Background and Aims: Plants are likely to invest in multiple defences, given the variety of sources of biotic and abiotic damage to which they are exposed. However, little is known about syndromes of defence across plant species and how these differ in contrasting environments. Here an investigation is made into the association between carbon-based chemical and mechanical defences, predicting that species that invest heavily in mechanical defence of leaves will invest less in chemical defence. Methods: A combination of published and unpublished data is used to test whether species with tougher leaves have lower concentrations of phenolics, using 125 species from four regions of Australia and the Pacific island of New Caledonia, in evergreen vegetation ranging from temperate shrubland and woodland to tropical shrubland and rainforest. Foliar toughness was measured as work-to-shear and specific work-to-shear (work-to-shear per unit leaf thickness). Phenolics were measured as 'total phenolics' and by protein precipitation (an estimate of tannin activity) per leaf dry mass. Key Results: Contrary to prediction, phenolic concentrations were not negatively correlated with either measure of leaf toughness when examined across all species, within regions or within any plant community. Instead, measures of toughness (particularly work-to-shear) and phenolics were often positively correlated in shrubland and rainforest (but not dry forest) in New Caledonia, with a similar trend suggested for shrubland in south-western Australia. The common feature of these sites was low concentrations of soil nutrients, with evidence of P limitation. Conclusions: Positive correlations between toughness and phenolics in vegetation on infertile soils suggest that additive investment in carbon-based mechanical and chemical defences is advantageous and cost-effective in these nutrient-deficient environments where carbohydrate may be in surplus. |
format |
article |
topic_facet |
F60 - Physiologie et biochimie végétale K01 - Foresterie - Considérations générales L51 - Physiologie animale - Nutrition 000 - Autres thèmes feuille composé phénolique propriété physicochimique composition chimique répulsif d'origine végétale pâturage forêt tropicale savane plante d'abroutissement arbuste http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5772 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_1794 http://aims.fao.org/aos/agrovoc/c_25258 http://aims.fao.org/aos/agrovoc/c_25243 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_9458 http://aims.fao.org/aos/agrovoc/c_26823 http://aims.fao.org/aos/agrovoc/c_714 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Read, Jennifer Sanson, Gordon D. Caldwell, Elizabeth Clissold, Fiona J. Chatain, Alex Peeters, Paula Lamont, Byron B. De Garine-Wichatitsky, Michel Jaffré, Tanguy Kerr, Stuart |
author_facet |
Read, Jennifer Sanson, Gordon D. Caldwell, Elizabeth Clissold, Fiona J. Chatain, Alex Peeters, Paula Lamont, Byron B. De Garine-Wichatitsky, Michel Jaffré, Tanguy Kerr, Stuart |
author_sort |
Read, Jennifer |
title |
Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia |
title_short |
Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia |
title_full |
Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia |
title_fullStr |
Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia |
title_full_unstemmed |
Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia |
title_sort |
correlations between leaf toughness and phenolics among species in contrasting environments of australia and new caledonia |
url |
http://agritrop.cirad.fr/578574/ http://agritrop.cirad.fr/578574/1/Ann%20Bot-2009-Read-757-67.pdf |
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dig-cirad-fr-5785742024-01-28T23:06:47Z http://agritrop.cirad.fr/578574/ http://agritrop.cirad.fr/578574/ Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia. Read Jennifer, Sanson Gordon D., Caldwell Elizabeth, Clissold Fiona J., Chatain Alex, Peeters Paula, Lamont Byron B., De Garine-Wichatitsky Michel, Jaffré Tanguy, Kerr Stuart. 2009. Annals of Botany, 103 (5) : 757-767.https://doi.org/10.1093/aob/mcn246 <https://doi.org/10.1093/aob/mcn246> Correlations between leaf toughness and phenolics among species in contrasting environments of Australia and New Caledonia Read, Jennifer Sanson, Gordon D. Caldwell, Elizabeth Clissold, Fiona J. Chatain, Alex Peeters, Paula Lamont, Byron B. De Garine-Wichatitsky, Michel Jaffré, Tanguy Kerr, Stuart eng 2009 Annals of Botany F60 - Physiologie et biochimie végétale K01 - Foresterie - Considérations générales L51 - Physiologie animale - Nutrition 000 - Autres thèmes feuille composé phénolique propriété physicochimique composition chimique répulsif d'origine végétale pâturage forêt tropicale savane plante d'abroutissement arbuste http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5772 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_1794 http://aims.fao.org/aos/agrovoc/c_25258 http://aims.fao.org/aos/agrovoc/c_25243 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_6825 http://aims.fao.org/aos/agrovoc/c_9458 http://aims.fao.org/aos/agrovoc/c_26823 Australie Nouvelle-Calédonie France http://aims.fao.org/aos/agrovoc/c_714 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 Background and Aims: Plants are likely to invest in multiple defences, given the variety of sources of biotic and abiotic damage to which they are exposed. However, little is known about syndromes of defence across plant species and how these differ in contrasting environments. Here an investigation is made into the association between carbon-based chemical and mechanical defences, predicting that species that invest heavily in mechanical defence of leaves will invest less in chemical defence. Methods: A combination of published and unpublished data is used to test whether species with tougher leaves have lower concentrations of phenolics, using 125 species from four regions of Australia and the Pacific island of New Caledonia, in evergreen vegetation ranging from temperate shrubland and woodland to tropical shrubland and rainforest. Foliar toughness was measured as work-to-shear and specific work-to-shear (work-to-shear per unit leaf thickness). Phenolics were measured as 'total phenolics' and by protein precipitation (an estimate of tannin activity) per leaf dry mass. Key Results: Contrary to prediction, phenolic concentrations were not negatively correlated with either measure of leaf toughness when examined across all species, within regions or within any plant community. Instead, measures of toughness (particularly work-to-shear) and phenolics were often positively correlated in shrubland and rainforest (but not dry forest) in New Caledonia, with a similar trend suggested for shrubland in south-western Australia. The common feature of these sites was low concentrations of soil nutrients, with evidence of P limitation. Conclusions: Positive correlations between toughness and phenolics in vegetation on infertile soils suggest that additive investment in carbon-based mechanical and chemical defences is advantageous and cost-effective in these nutrient-deficient environments where carbohydrate may be in surplus. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/578574/1/Ann%20Bot-2009-Read-757-67.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1093/aob/mcn246 10.1093/aob/mcn246 info:eu-repo/semantics/altIdentifier/doi/10.1093/aob/mcn246 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1093/aob/mcn246 |