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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Autor principal: Mantovani, André
Formato: Online
Idioma:eng
Publicado: Universidad de Costa Rica 2022
Acceso en línea:https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/53115
id LANKESTERIANA53115
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institution Universidad de Costa Rica
collection Lankesteriana: International Journal on Orchidology
language eng
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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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spelling 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/