CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONS
This study was performed in order to determine the effects of gradually increasing temperatures on maize, which belongs to the C4 plant group. 20 day old seedlings were exposed to increasing heat stress (25/20, 30/25, 35/30, 40/35, 45/40°C at 16/8 photoperiods) for 5 days. The first temperature trea...
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| Format: | Article |
| Language: | English |
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Trakya University
2017-07-01
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| Series: | Trakya University Journal of Natural Sciences |
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| Online Access: | https://dergipark.org.tr/en/download/article-file/328798 |
| _version_ | 1797633862737592320 |
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| author | Elif Yüzbaşıoğlu Eda Dalyan Ilgın Akpınar |
| author_facet | Elif Yüzbaşıoğlu Eda Dalyan Ilgın Akpınar |
| author_sort | Elif Yüzbaşıoğlu |
| collection | DOAJ |
| description | This study was performed in order to determine the effects of gradually
increasing temperatures on maize, which belongs to the C4 plant
group. 20 day old seedlings were exposed to increasing heat stress (25/20,
30/25, 35/30, 40/35, 45/40°C at 16/8 photoperiods) for 5 days. The first
temperature treatment (25/20°C) was used as control. Stress injury was measured
in terms of malondialdehyde (MDA), hydrogen peroxide (H2O2),
chlorophyll (a and b), carotenoid and anthocyanin contents
and maximum quantum efficiency of photosystem II (Fv/Fm). MDA and
H2O2 levels were found to significantly increase at high
temperatures (35, 40, 45°C). Chlorophyll content was observed to be highest at
35°C and a decrease was determined at 40 and 45°C. Fv/Fm was
found to decrease at 40 and 45°C. Carotenoid and anthocyanin contents
dramatically increased under high temperature stress. In addition, significant
increases were determined in the activities of superoxide dismutase (SOD),
catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) under
high temperature (45°C), while peroxidase (POX) and glutathione S-transferase (GST) activities showed no
change. Treatments above 35°C triggered high temperature stress in maize
seedlings. The results of this study showed that temperatures above 35°C lead
to stress effects on photosynthesis and induced enzymatic and non-enzymatic
antioxidant activity in maize seedlings. |
| first_indexed | 2024-03-11T12:00:37Z |
| format | Article |
| id | doaj.art-3f0430529954462693c952308da459a6 |
| institution | Directory Open Access Journal |
| issn | 2528-9691 |
| language | English |
| last_indexed | 2024-03-11T12:00:37Z |
| publishDate | 2017-07-01 |
| publisher | Trakya University |
| record_format | Article |
| series | Trakya University Journal of Natural Sciences |
| spelling | doaj.art-3f0430529954462693c952308da459a62023-11-08T07:27:56ZengTrakya UniversityTrakya University Journal of Natural Sciences2528-96912017-07-011829710469CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONSElif Yüzbaşıoğlu0Eda Dalyan1Ilgın Akpınar2İSTANBUL ÜNİVERSİTESİİstanbul Üniveristesiİstanbul ÜniveristesiThis study was performed in order to determine the effects of gradually increasing temperatures on maize, which belongs to the C4 plant group. 20 day old seedlings were exposed to increasing heat stress (25/20, 30/25, 35/30, 40/35, 45/40°C at 16/8 photoperiods) for 5 days. The first temperature treatment (25/20°C) was used as control. Stress injury was measured in terms of malondialdehyde (MDA), hydrogen peroxide (H2O2), chlorophyll (a and b), carotenoid and anthocyanin contents and maximum quantum efficiency of photosystem II (Fv/Fm). MDA and H2O2 levels were found to significantly increase at high temperatures (35, 40, 45°C). Chlorophyll content was observed to be highest at 35°C and a decrease was determined at 40 and 45°C. Fv/Fm was found to decrease at 40 and 45°C. Carotenoid and anthocyanin contents dramatically increased under high temperature stress. In addition, significant increases were determined in the activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) under high temperature (45°C), while peroxidase (POX) and glutathione S-transferase (GST) activities showed no change. Treatments above 35°C triggered high temperature stress in maize seedlings. The results of this study showed that temperatures above 35°C lead to stress effects on photosynthesis and induced enzymatic and non-enzymatic antioxidant activity in maize seedlings.https://dergipark.org.tr/en/download/article-file/328798maizeantioxidant enzymesheat stressanthocyaninmısırantioksidan enzimlarantosiyaninsıcaklık stresi |
| spellingShingle | Elif Yüzbaşıoğlu Eda Dalyan Ilgın Akpınar CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONS Trakya University Journal of Natural Sciences maize antioxidant enzymes heat stress anthocyanin mısır antioksidan enzimlar antosiyanin sıcaklık stresi |
| title | CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONS |
| title_full | CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONS |
| title_fullStr | CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONS |
| title_full_unstemmed | CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONS |
| title_short | CHANGES IN PHOTOSYNTHETIC PIGMENTS, ANTHOCYANIN CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES OF MAIZE (Zea mays L.) SEEDLINGS UNDER HIGH TEMPERATURE STRESS CONDITIONS |
| title_sort | changes in photosynthetic pigments anthocyanin content and antioxidant enzyme activities of maize zea mays l seedlings under high temperature stress conditions |
| topic | maize antioxidant enzymes heat stress anthocyanin mısır antioksidan enzimlar antosiyanin sıcaklık stresi |
| url | https://dergipark.org.tr/en/download/article-file/328798 |
| work_keys_str_mv | AT elifyuzbasıoglu changesinphotosyntheticpigmentsanthocyanincontentandantioxidantenzymeactivitiesofmaizezeamayslseedlingsunderhightemperaturestressconditions AT edadalyan changesinphotosyntheticpigmentsanthocyanincontentandantioxidantenzymeactivitiesofmaizezeamayslseedlingsunderhightemperaturestressconditions AT ilgınakpınar changesinphotosyntheticpigmentsanthocyanincontentandantioxidantenzymeactivitiesofmaizezeamayslseedlingsunderhightemperaturestressconditions |