Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia
Steady state and dynamic responses of two tree fern species of contrasting origins, Dicksonia antarctica (of Gondwanan origin) and Cyathea australis (Pan-tropical), were studied over two consecutive years under field conditions in a wet sclerophyll forest of south-east Australia. Irrespective of the...
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Language: | English |
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ftumelbourne:oai:jupiter.its.unimelb.edu.au:11343/258604 2024-06-02T07:58:42+00:00 Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia Volkova, L Bennett, LT Tausz, M 2011-01 http://hdl.handle.net/11343/258604 English eng PERGAMON-ELSEVIER SCIENCE LTD issn:0098-8472 doi:10.1016/j.envexpbot.2010.06.001 Volkova, L., Bennett, L. T. & Tausz, M. (2011). Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia. ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 70 (1), pp.11-19. https://doi.org/10.1016/j.envexpbot.2010.06.001. 1873-7307 http://hdl.handle.net/11343/258604 Journal Article 2011 ftumelbourne https://doi.org/10.1016/j.envexpbot.2010.06.001 2024-05-06T11:56:18Z Steady state and dynamic responses of two tree fern species of contrasting origins, Dicksonia antarctica (of Gondwanan origin) and Cyathea australis (Pan-tropical), were studied over two consecutive years under field conditions in a wet sclerophyll forest of south-east Australia. Irrespective of their different origins, there were no significant differences in photosynthetic performance between the two species. Growth irradiance and leaf temperature, but not plant water status, was significantly related to photosynthetic and morphological traits. At a common leaf temperature, maximum light-use efficiency of photosystem II (Fv/Fm) was significantly lower in winter than in summer, suggesting some limitation to PSII efficiency potentially associated with cold winter mornings. Both species displayed seasonal acclimation in a number of measured photosynthetic parameters and frond traits (i.e. Fv/Fm, Asat, gs, NA, total chlorophyll, SLA). Acclimation of stomatal density to spatial variation in growth irradiance seemed limited in both species, although stomatal pattern differed between species. Because there were no significant differences between the two species in photosynthetic parameters, both species can be described by common carbon gain and water use models at the leaf scale. Article in Journal/Newspaper Antarc* Antarctica The University of Melbourne: Digital Repository Environmental and Experimental Botany 70 1 11 19 |
institution |
Open Polar |
collection |
The University of Melbourne: Digital Repository |
op_collection_id |
ftumelbourne |
language |
English |
description |
Steady state and dynamic responses of two tree fern species of contrasting origins, Dicksonia antarctica (of Gondwanan origin) and Cyathea australis (Pan-tropical), were studied over two consecutive years under field conditions in a wet sclerophyll forest of south-east Australia. Irrespective of their different origins, there were no significant differences in photosynthetic performance between the two species. Growth irradiance and leaf temperature, but not plant water status, was significantly related to photosynthetic and morphological traits. At a common leaf temperature, maximum light-use efficiency of photosystem II (Fv/Fm) was significantly lower in winter than in summer, suggesting some limitation to PSII efficiency potentially associated with cold winter mornings. Both species displayed seasonal acclimation in a number of measured photosynthetic parameters and frond traits (i.e. Fv/Fm, Asat, gs, NA, total chlorophyll, SLA). Acclimation of stomatal density to spatial variation in growth irradiance seemed limited in both species, although stomatal pattern differed between species. Because there were no significant differences between the two species in photosynthetic parameters, both species can be described by common carbon gain and water use models at the leaf scale. |
format |
Article in Journal/Newspaper |
author |
Volkova, L Bennett, LT Tausz, M |
spellingShingle |
Volkova, L Bennett, LT Tausz, M Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia |
author_facet |
Volkova, L Bennett, LT Tausz, M |
author_sort |
Volkova, L |
title |
Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia |
title_short |
Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia |
title_full |
Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia |
title_fullStr |
Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia |
title_full_unstemmed |
Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia |
title_sort |
diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns dicksonia antarctica (dicksoniaceae) and cyathea australis (cyatheaceae) in wet sclerophyll forests of australia |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2011 |
url |
http://hdl.handle.net/11343/258604 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
issn:0098-8472 doi:10.1016/j.envexpbot.2010.06.001 Volkova, L., Bennett, L. T. & Tausz, M. (2011). Diurnal and seasonal variations in photosynthetic and morphological traits of the tree ferns Dicksonia antarctica (Dicksoniaceae) and Cyathea australis (Cyatheaceae) in wet sclerophyll forests of Australia. ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 70 (1), pp.11-19. https://doi.org/10.1016/j.envexpbot.2010.06.001. 1873-7307 http://hdl.handle.net/11343/258604 |
op_doi |
https://doi.org/10.1016/j.envexpbot.2010.06.001 |
container_title |
Environmental and Experimental Botany |
container_volume |
70 |
container_issue |
1 |
container_start_page |
11 |
op_container_end_page |
19 |
_version_ |
1800742209656455168 |