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Using seminatural and simulated habitats for seed germination ecology of banana wild relatives

1. Ecologically meaningful seed germination experiments are constrained by access to seeds and relevant environments for testing at the same time. This is particularly the case when research is carried out far from the native area of the studied species. 2. Here, we demonstrate an alternative—the us...

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Autores principales: Kallow, Simon, Quaghebeur, Katrijn, Panis, Bart, Janssens, Steven B., Dickie, John, Gueco, Lavernee, Swennen, Rony, Vandelook, Filip
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8571623/
https://www.ncbi.nlm.nih.gov/pubmed/34765131
http://dx.doi.org/10.1002/ece3.8152
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author Kallow, Simon
Quaghebeur, Katrijn
Panis, Bart
Janssens, Steven B.
Dickie, John
Gueco, Lavernee
Swennen, Rony
Vandelook, Filip
author_facet Kallow, Simon
Quaghebeur, Katrijn
Panis, Bart
Janssens, Steven B.
Dickie, John
Gueco, Lavernee
Swennen, Rony
Vandelook, Filip
author_sort Kallow, Simon
collection PubMed
description 1. Ecologically meaningful seed germination experiments are constrained by access to seeds and relevant environments for testing at the same time. This is particularly the case when research is carried out far from the native area of the studied species. 2. Here, we demonstrate an alternative—the use of glasshouses in botanic gardens as simulated‐natural habitats to extend the ecological interpretation of germination studies. Our focal taxa were banana crop wild relatives (Musa acuminata subsp. burmannica, Musa acuminata subsp. siamea, and Musa balbisiana), native to tropical and subtropical South‐East Asia. Tests were carried out in Belgium, where we performed germination tests in relation to foliage‐shading/exposure to solar radiation and seed burial depth, as well as seed survival and dormancy release in the soil. We calibrated the interpretation of these studies by also conducting an experiment in a seminatural habitat in a species native range (M. balbisiana—Los Baños, the Philippines), where we tested germination responses to exposure to sun/shade. Using temperature data loggers, we determined temperature dynamics suitable for germination in both these settings. 3. In these seminatural and simulated‐natural habitats, seeds germinated in response to exposure to direct solar radiation. Seed burial depth had a significant but marginal effect by comparison, even when seeds were buried to 7 cm in the soil. Temperatures at sun‐exposed compared with shaded environments differed by only a few degrees Celsius. Maximum temperature of the period prior to germination was the most significant contributor to germination responses and germination increased linearly above a threshold of 23℃ to the maximum temperature in the soil (in simulated‐natural habitats) of 35℃. 4. Glasshouses can provide useful environments to aid interpretation of seed germination responses to environmental niches.
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spelling pubmed-85716232021-11-10 Using seminatural and simulated habitats for seed germination ecology of banana wild relatives Kallow, Simon Quaghebeur, Katrijn Panis, Bart Janssens, Steven B. Dickie, John Gueco, Lavernee Swennen, Rony Vandelook, Filip Ecol Evol Research Articles 1. Ecologically meaningful seed germination experiments are constrained by access to seeds and relevant environments for testing at the same time. This is particularly the case when research is carried out far from the native area of the studied species. 2. Here, we demonstrate an alternative—the use of glasshouses in botanic gardens as simulated‐natural habitats to extend the ecological interpretation of germination studies. Our focal taxa were banana crop wild relatives (Musa acuminata subsp. burmannica, Musa acuminata subsp. siamea, and Musa balbisiana), native to tropical and subtropical South‐East Asia. Tests were carried out in Belgium, where we performed germination tests in relation to foliage‐shading/exposure to solar radiation and seed burial depth, as well as seed survival and dormancy release in the soil. We calibrated the interpretation of these studies by also conducting an experiment in a seminatural habitat in a species native range (M. balbisiana—Los Baños, the Philippines), where we tested germination responses to exposure to sun/shade. Using temperature data loggers, we determined temperature dynamics suitable for germination in both these settings. 3. In these seminatural and simulated‐natural habitats, seeds germinated in response to exposure to direct solar radiation. Seed burial depth had a significant but marginal effect by comparison, even when seeds were buried to 7 cm in the soil. Temperatures at sun‐exposed compared with shaded environments differed by only a few degrees Celsius. Maximum temperature of the period prior to germination was the most significant contributor to germination responses and germination increased linearly above a threshold of 23℃ to the maximum temperature in the soil (in simulated‐natural habitats) of 35℃. 4. Glasshouses can provide useful environments to aid interpretation of seed germination responses to environmental niches. John Wiley and Sons Inc. 2021-10-11 /pmc/articles/PMC8571623/ /pubmed/34765131 http://dx.doi.org/10.1002/ece3.8152 Text en © 2021 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Kallow, Simon
Quaghebeur, Katrijn
Panis, Bart
Janssens, Steven B.
Dickie, John
Gueco, Lavernee
Swennen, Rony
Vandelook, Filip
Using seminatural and simulated habitats for seed germination ecology of banana wild relatives
title Using seminatural and simulated habitats for seed germination ecology of banana wild relatives
title_full Using seminatural and simulated habitats for seed germination ecology of banana wild relatives
title_fullStr Using seminatural and simulated habitats for seed germination ecology of banana wild relatives
title_full_unstemmed Using seminatural and simulated habitats for seed germination ecology of banana wild relatives
title_short Using seminatural and simulated habitats for seed germination ecology of banana wild relatives
title_sort using seminatural and simulated habitats for seed germination ecology of banana wild relatives
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8571623/
https://www.ncbi.nlm.nih.gov/pubmed/34765131
http://dx.doi.org/10.1002/ece3.8152
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