Exceptional photosynthetic performance of Capparis spinosa L. under adverse conditions of Mediterranean summer
| dc.contributor.author | Levizou, E. | en |
| dc.contributor.author | Drilias, P. | en |
| dc.contributor.author | Kyparissis, A. | en |
| dc.date.accessioned | 2015-11-24T16:33:23Z | |
| dc.date.available | 2015-11-24T16:33:23Z | |
| dc.identifier.issn | 0300-3604 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/7653 | |
| dc.rights | Default Licence | - |
| dc.subject | chlorophyll fluorescence | en |
| dc.subject | daily and seasonal photosynthesis | en |
| dc.subject | net photosynthetic rate | en |
| dc.subject | stomatal conductance | en |
| dc.subject | summer perennial | en |
| dc.subject | transpiration rate | en |
| dc.subject | water potential | en |
| dc.subject | phlomis-fruticosa l | en |
| dc.subject | semi-deciduous shrub | en |
| dc.subject | seasonal-changes | en |
| dc.subject | field conditions | en |
| dc.subject | gas-exchang | en |
| dc.title | Exceptional photosynthetic performance of Capparis spinosa L. under adverse conditions of Mediterranean summer | en |
| heal.abstract | Diurnal and seasonal fluctuations in water potential (T), stomatal conductance (g(s)), transpiration rate (E), and net photosynthetic rate (P-N) were monitored in Capparis spinosa L., a Mediterranean plant growing during summer, i.e. at the period considered the most stressful for local plant life. In spite of the complete absence of rain, T exhibited a modest drop at midday (-2.7 MPa), but was fully recovered overnight, indicating sufficient access to water sources. The stomata remained open throughout the day and season and the high E resulted in leaf temperatures up to 3.9 degreesC below air temperature. Additionally, P-N of the fully exposed leaves was higher than 25 mol m(-2) s(-1) for more than 10 h per day throughout the summer growth period. No symptoms of photooxidative stress were shown, as judged by maximum photosystem 2 photochemical efficiency (F-v/F-m) and the function of xanthophyll cycle. Indeed, diurnal inter-conversions of the xanthophyll cycle components were modest during the summer and a more intensive function of the cycle was only evident during leaf senescence in autumn. In comparison with a semi-deciduous and an evergreen sclerophyll co-existing in the same ecosystem, C spinosa assimilated up to 3.4 times more CO2 per in 2 during its growth period (May to October) and up to 1.8 times more on an annual basis. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.secondary | <Go to ISI>://000223758900009 | - |
| heal.journalName | Photosynthetica | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2004 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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