Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions
Calcium oxalate (CaOx) crystals are widespread among plant species. Their functions are not yet completely understood; however, they can provide tolerance against multiple environmental stress factors. Recent evidence suggested that CaOx crystals function as carbon reservoirs since its decomposition...
Published in: | Plants |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
MDPI AG
2020
|
Subjects: | |
Online Access: | https://doi.org/10.3390/plants9101307 https://doaj.org/article/279149a6f32946c2b552bd4fa6792295 |
id |
ftdoajarticles:oai:doaj.org/article:279149a6f32946c2b552bd4fa6792295 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:279149a6f32946c2b552bd4fa6792295 2023-05-15T13:37:03+02:00 Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions Olman Gómez-Espinoza Daniel González-Ramírez Panagiota Bresta George Karabourniotis León A. Bravo 2020-10-01T00:00:00Z https://doi.org/10.3390/plants9101307 https://doaj.org/article/279149a6f32946c2b552bd4fa6792295 EN eng MDPI AG https://www.mdpi.com/2223-7747/9/10/1307 https://doaj.org/toc/2223-7747 doi:10.3390/plants9101307 2223-7747 https://doaj.org/article/279149a6f32946c2b552bd4fa6792295 Plants, Vol 9, Iss 1307, p 1307 (2020) alarm photosynthesis Antarctic oxalate oxidase Botany QK1-989 article 2020 ftdoajarticles https://doi.org/10.3390/plants9101307 2022-12-30T20:32:57Z Calcium oxalate (CaOx) crystals are widespread among plant species. Their functions are not yet completely understood; however, they can provide tolerance against multiple environmental stress factors. Recent evidence suggested that CaOx crystals function as carbon reservoirs since its decomposition provides CO 2 that may be used as carbon source for photosynthesis. This might be advantageous in plants with reduced mesophyll conductance, such as the Antarctic plant Colobanthus quitensis , which have shown CO 2 diffusion limitations. In this study, we evaluate the effect of two CO 2 concentrations in the CaOx crystals decomposition and chlorophyll fluorescence of C. quitensis . Plants were exposed to airflows with 400 ppm and 11.5 ppm CO 2 and the number and relative size of crystals, electron transport rate (ETR), and oxalate oxidase (OxO) activity were monitored along time (10 h). Here we showed that leaf crystal area decreases over time in plants with 11.5 ppm CO 2 , which was accompanied by increased OxO activity and only a slight decrease in the ETR. These results suggested a relation between CO 2 limiting conditions and the CaOx crystals decomposition in C. quitensis . Hence, crystal decomposition could be a complementary endogenous mechanism for CO 2 supply in plants facing the Antarctic stressful habitat. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Plants 9 10 1307 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
alarm photosynthesis Antarctic oxalate oxidase Botany QK1-989 |
spellingShingle |
alarm photosynthesis Antarctic oxalate oxidase Botany QK1-989 Olman Gómez-Espinoza Daniel González-Ramírez Panagiota Bresta George Karabourniotis León A. Bravo Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions |
topic_facet |
alarm photosynthesis Antarctic oxalate oxidase Botany QK1-989 |
description |
Calcium oxalate (CaOx) crystals are widespread among plant species. Their functions are not yet completely understood; however, they can provide tolerance against multiple environmental stress factors. Recent evidence suggested that CaOx crystals function as carbon reservoirs since its decomposition provides CO 2 that may be used as carbon source for photosynthesis. This might be advantageous in plants with reduced mesophyll conductance, such as the Antarctic plant Colobanthus quitensis , which have shown CO 2 diffusion limitations. In this study, we evaluate the effect of two CO 2 concentrations in the CaOx crystals decomposition and chlorophyll fluorescence of C. quitensis . Plants were exposed to airflows with 400 ppm and 11.5 ppm CO 2 and the number and relative size of crystals, electron transport rate (ETR), and oxalate oxidase (OxO) activity were monitored along time (10 h). Here we showed that leaf crystal area decreases over time in plants with 11.5 ppm CO 2 , which was accompanied by increased OxO activity and only a slight decrease in the ETR. These results suggested a relation between CO 2 limiting conditions and the CaOx crystals decomposition in C. quitensis . Hence, crystal decomposition could be a complementary endogenous mechanism for CO 2 supply in plants facing the Antarctic stressful habitat. |
format |
Article in Journal/Newspaper |
author |
Olman Gómez-Espinoza Daniel González-Ramírez Panagiota Bresta George Karabourniotis León A. Bravo |
author_facet |
Olman Gómez-Espinoza Daniel González-Ramírez Panagiota Bresta George Karabourniotis León A. Bravo |
author_sort |
Olman Gómez-Espinoza |
title |
Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions |
title_short |
Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions |
title_full |
Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions |
title_fullStr |
Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions |
title_full_unstemmed |
Decomposition of Calcium Oxalate Crystals in Colobanthus quitensis under CO 2 Limiting Conditions |
title_sort |
decomposition of calcium oxalate crystals in colobanthus quitensis under co 2 limiting conditions |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/plants9101307 https://doaj.org/article/279149a6f32946c2b552bd4fa6792295 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Plants, Vol 9, Iss 1307, p 1307 (2020) |
op_relation |
https://www.mdpi.com/2223-7747/9/10/1307 https://doaj.org/toc/2223-7747 doi:10.3390/plants9101307 2223-7747 https://doaj.org/article/279149a6f32946c2b552bd4fa6792295 |
op_doi |
https://doi.org/10.3390/plants9101307 |
container_title |
Plants |
container_volume |
9 |
container_issue |
10 |
container_start_page |
1307 |
_version_ |
1766087738173423616 |