Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae)
How functional organ traits vary with increasing plant size reveals the strategies of plants to acquire, store and utilize resources that ensure vegetative growth and reproduction. Plant size can influence fitness; thus, the relationships of organ traits should be evaluated together with reproductiv...
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Formato: | Online |
Idioma: | eng |
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Universidad de Costa Rica
2022
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Acceso en línea: | https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/53115 |
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LANKESTERIANA53115 |
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Universidad de Costa Rica |
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Lankesteriana: International Journal on Orchidology |
language |
eng |
format |
Online |
author |
Mantovani, André |
spellingShingle |
Mantovani, André Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae) |
author_facet |
Mantovani, André |
author_sort |
Mantovani, André |
description |
How functional organ traits vary with increasing plant size reveals the strategies of plants to acquire, store and utilize resources that ensure vegetative growth and reproduction. Plant size can influence fitness; thus, the relationships of organ traits should be evaluated together with reproductive allocation, but this is rarely the case. The relationship among plant size, functional organ traits (number and size of roots, leaves and flowers, and scape size), and dry mass partitioning was analyzed intraspecifically using 35 reproductive individuals of the epiphytic, micro-orchid Lankesterella ceracifolia. The relationships between vegetative and reproductive organ traits were evaluated using different regressions models. Size-dependent allocation to reproduction was evaluated through reproductive versus vegetative (RV) regressions for the entire inflorescence and separately for scape and flowers. The four regression models included simple (slope only), linear (slope and intercept), allometric (without intercept), and non-linear (allometric with intercept), were fitted to RV and compared via a log likelihood-ratio test. Preferential allocation to leaves instead of roots influenced how rosette frontal area changed with increasing plant size. Flower dry mass represented 70% of the inflorescence dry mass, an unusual result as scape dry mass generally represents most of the reproductive structure in plants. The allometric model was suitable for the entire inflorescence or only the scape, while the isometric model was best for flowers. Dry mass investment in the scape influenced the final reproductive allometry found for the micro-orchid L. ceracifolia. |
title |
Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae) |
title_short |
Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae) |
title_full |
Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae) |
title_fullStr |
Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae) |
title_full_unstemmed |
Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae) |
title_sort |
size dependent allocation to vegetative and reproductive organs of the micro-orchid lankesterella ceracifolia (spiranthinae) |
title_alt |
Size dependent allocation to vegetative and reproductive organs of the orchid Lankesterella ceracifolia (Spiranthinae) |
publisher |
Universidad de Costa Rica |
publishDate |
2022 |
url |
https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/53115 |
work_keys_str_mv |
AT mantovaniandre sizedependentallocationtovegetativeandreproductiveorgansoftheorchidlankesterellaceracifoliaspiranthinae AT mantovaniandre sizedependentallocationtovegetativeandreproductiveorgansofthemicroorchidlankesterellaceracifoliaspiranthinae |
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1810112989921017856 |
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LANKESTERIANA531152022-12-17T00:24:31Z Size dependent allocation to vegetative and reproductive organs of the orchid Lankesterella ceracifolia (Spiranthinae) Size dependent allocation to vegetative and reproductive organs of the micro-orchid Lankesterella ceracifolia (Spiranthinae) Mantovani, André allocation Cranichideae epiphyte life history plant allometry reproductive strategy size threshold alometría vegetal asignación epífita Cranichideae historia de vida estrategia reproductiva umbral de tamaño How functional organ traits vary with increasing plant size reveals the strategies of plants to acquire, store and utilize resources that ensure vegetative growth and reproduction. Plant size can influence fitness; thus, the relationships of organ traits should be evaluated together with reproductive allocation, but this is rarely the case. The relationship among plant size, functional organ traits (number and size of roots, leaves and flowers, and scape size), and dry mass partitioning was analyzed intraspecifically using 35 reproductive individuals of the epiphytic orchid Lankesterella ceracifolia. The relationships between vegetative and reproductive organ traits were evaluated using different regression models. Size-dependent allocation to reproduction was evaluated through reproductive versus vegetative (RV) regressions for the entire inflorescence and separately for scape and flowers. The four regression models included simple (slope only), linear (slope and intercept), allometric (without intercept), and non-linear (allometric with intercept), were fitted to RV and compared via a log likelihood-ratio test. Preferential allocation to leaves instead of roots influenced how rosette frontal area changed with increasing plant size. Flower dry mass represented 70% of the inflorescence dry mass, an unusual result as scape dry mass generally represents most of the reproductive structure in plants. The allometric model was suitable for the entire inflorescence or only the scape, while the isometric model was best for flowers. Dry mass investment in the scape influenced the final reproductive allometry found for the orchid L. ceracifolia. How functional organ traits vary with increasing plant size reveals the strategies of plants to acquire, store and utilize resources that ensure vegetative growth and reproduction. Plant size can influence fitness; thus, the relationships of organ traits should be evaluated together with reproductive allocation, but this is rarely the case. The relationship among plant size, functional organ traits (number and size of roots, leaves and flowers, and scape size), and dry mass partitioning was analyzed intraspecifically using 35 reproductive individuals of the epiphytic, micro-orchid Lankesterella ceracifolia. The relationships between vegetative and reproductive organ traits were evaluated using different regressions models. Size-dependent allocation to reproduction was evaluated through reproductive versus vegetative (RV) regressions for the entire inflorescence and separately for scape and flowers. The four regression models included simple (slope only), linear (slope and intercept), allometric (without intercept), and non-linear (allometric with intercept), were fitted to RV and compared via a log likelihood-ratio test. Preferential allocation to leaves instead of roots influenced how rosette frontal area changed with increasing plant size. Flower dry mass represented 70% of the inflorescence dry mass, an unusual result as scape dry mass generally represents most of the reproductive structure in plants. The allometric model was suitable for the entire inflorescence or only the scape, while the isometric model was best for flowers. Dry mass investment in the scape influenced the final reproductive allometry found for the micro-orchid L. ceracifolia. Universidad de Costa Rica 2022-11-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf application/epub+zip https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/53115 10.15517/lank.v22i3.53115 Lankesteriana: International Journal on Orchidology; 2022: Lankesteriana: Volume 22, number 3 (September–December); 225–240 Lankesteriana: International Journal on Orchidology; 2022: Lankesteriana: Volumen 22, número 3 (Setiembre–Diciembre); 225–240 2215-2067 1409-3871 eng https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/53115/53423 https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/53115/53424 Copyright (c) 2022 Lankester Botanical Garden, University of Costa Rica https://creativecommons.org/licenses/by-nc-nd/3.0/cr/ |