DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATION
The aim of this work was to measure the net CO2 assimilation, O2 evolution, Rubisco activity, 13C content, actual photochemical PSII efficiency, stomatal conductance, water and osmotic potentials as well as relative water content during increasing plant dehydration. The measurements allowed to deter...
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| Format: | Article |
| Language: | Bulgarian |
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University of Zagreb, Faculty of Agriculture
2002-05-01
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| Series: | Journal of Central European Agriculture |
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| Online Access: | http://jcea.agr.hr/articles/38_DETERMINATION_OF_SENSITIVE_SITES_IN_PHOTOSYNTHESIS_DURING_LONGTERM_PLANT_DEHYDRATION_en.pdf |
| _version_ | 1818522786394537984 |
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| author | M BRESTIČ |
| author_facet | M BRESTIČ |
| author_sort | M BRESTIČ |
| collection | DOAJ |
| description | The aim of this work was to measure the net CO2 assimilation, O2 evolution, Rubisco activity, 13C content, actual photochemical PSII efficiency, stomatal conductance, water and osmotic potentials as well as relative water content during increasing plant dehydration. The measurements allowed to determine vulnerability of individual segments of complex process of photosynthesis and characterise the stomatal and non-stomatal responses to dehydration and resistance of mechanisms of photosynthesis to gradual water stress. The sensitiveness of stomata, osmoprotection and isotopic 13C discrimination seem to be the most interesting parameters which act dynamically in plant acclimation to drought. They may be successfully used in screening new genotypes with efficient water and carbon use and in quantification of threshold of deleterious environmental effect to photosynthesis. |
| first_indexed | 2024-12-11T05:37:33Z |
| format | Article |
| id | doaj.art-e430588813c84f06add41b01b246dc4f |
| institution | Directory Open Access Journal |
| issn | 1332-9049 |
| language | Bulgarian |
| last_indexed | 2024-12-11T05:37:33Z |
| publishDate | 2002-05-01 |
| publisher | University of Zagreb, Faculty of Agriculture |
| record_format | Article |
| series | Journal of Central European Agriculture |
| spelling | doaj.art-e430588813c84f06add41b01b246dc4f2022-12-22T01:19:14ZbulUniversity of Zagreb, Faculty of AgricultureJournal of Central European Agriculture1332-90492002-05-0123217226DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATIONM BRESTIČThe aim of this work was to measure the net CO2 assimilation, O2 evolution, Rubisco activity, 13C content, actual photochemical PSII efficiency, stomatal conductance, water and osmotic potentials as well as relative water content during increasing plant dehydration. The measurements allowed to determine vulnerability of individual segments of complex process of photosynthesis and characterise the stomatal and non-stomatal responses to dehydration and resistance of mechanisms of photosynthesis to gradual water stress. The sensitiveness of stomata, osmoprotection and isotopic 13C discrimination seem to be the most interesting parameters which act dynamically in plant acclimation to drought. They may be successfully used in screening new genotypes with efficient water and carbon use and in quantification of threshold of deleterious environmental effect to photosynthesis.http://jcea.agr.hr/articles/38_DETERMINATION_OF_SENSITIVE_SITES_IN_PHOTOSYNTHESIS_DURING_LONGTERM_PLANT_DEHYDRATION_en.pdfphotosynthesiswater stressstomatal and non-stomatal effects |
| spellingShingle | M BRESTIČ DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATION Journal of Central European Agriculture photosynthesis water stress stomatal and non-stomatal effects |
| title | DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATION |
| title_full | DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATION |
| title_fullStr | DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATION |
| title_full_unstemmed | DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATION |
| title_short | DETERMINATION OF SENSITIVE SITES IN PHOTOSYNTHESIS DURING LONGTERM PLANT DEHYDRATION |
| title_sort | determination of sensitive sites in photosynthesis during longterm plant dehydration |
| topic | photosynthesis water stress stomatal and non-stomatal effects |
| url | http://jcea.agr.hr/articles/38_DETERMINATION_OF_SENSITIVE_SITES_IN_PHOTOSYNTHESIS_DURING_LONGTERM_PLANT_DEHYDRATION_en.pdf |
| work_keys_str_mv | AT mbrestic determinationofsensitivesitesinphotosynthesisduringlongtermplantdehydration |