Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.)
The effect of drought stress on carbon metabolism in the leaves and roots of bermudagrass was investigated. Plants established in PVC tubes suffered from three water treatments for 10 days. C138 and Tifway (drought-tolerant) were found to have lower relative electrical conductivity and higher water...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2023-06-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-202306-0002_effects-of-drought-stress-on-carbon-metabolism-of-bermudagrass-cynodon-dactylon-l.php |
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| author | Yilong Zhang Yuxuan Bao Peiying Li Qikun Yu Wen Li Lisi Tang Xiaofan Sun Zongjiu Sun Shuo Li |
| author_facet | Yilong Zhang Yuxuan Bao Peiying Li Qikun Yu Wen Li Lisi Tang Xiaofan Sun Zongjiu Sun Shuo Li |
| author_sort | Yilong Zhang |
| collection | DOAJ |
| description | The effect of drought stress on carbon metabolism in the leaves and roots of bermudagrass was investigated. Plants established in PVC tubes suffered from three water treatments for 10 days. C138 and Tifway (drought-tolerant) were found to have lower relative electrical conductivity and higher water use efficiency than C32 (drought-sensitive) under moderate drought by increasing carotenoid and soluble sugar content and rapidly decreasing leaf starch content. The sucrose synthase activity of leaves and roots, acid invertase and neutral invertase activity of C32 roots substantially decreased under severe drought, resulting in a slow sucrose decomposition rate and significantly lower fructose and glucose contents than C138 and Tifway. The activities of four carbon metabolism enzymes and sucrose content in the leaves were greater than those in the roots, while the fructose and glucose contents were on the contrary, indicating that bermudagrass transported fructose and glucose obtained from sucrose decomposition from leaves to roots under drought to reduce roots damage. The path analysis indicated that leaves neutral invertase activity, and roots soluble sugar content might be the key parameter of carbon metabolism in bermudagrass under drought. |
| first_indexed | 2024-03-12T11:49:16Z |
| format | Article |
| id | doaj.art-0e6b2c77742e4b829bdb51aaa9616174 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-03-12T11:49:16Z |
| publishDate | 2023-06-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-0e6b2c77742e4b829bdb51aaa96161742023-08-31T10:54:34ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682023-06-0169626928110.17221/426/2022-PSEpse-202306-0002Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.)Yilong Zhang0Yuxuan Bao1Peiying Li2Qikun Yu3Wen Li4Lisi Tang5Xiaofan Sun6Zongjiu Sun7Shuo Li8College of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaCollege of Grassland Science, Xinjiang Agricultural University, Urumqi, P.R. ChinaThe effect of drought stress on carbon metabolism in the leaves and roots of bermudagrass was investigated. Plants established in PVC tubes suffered from three water treatments for 10 days. C138 and Tifway (drought-tolerant) were found to have lower relative electrical conductivity and higher water use efficiency than C32 (drought-sensitive) under moderate drought by increasing carotenoid and soluble sugar content and rapidly decreasing leaf starch content. The sucrose synthase activity of leaves and roots, acid invertase and neutral invertase activity of C32 roots substantially decreased under severe drought, resulting in a slow sucrose decomposition rate and significantly lower fructose and glucose contents than C138 and Tifway. The activities of four carbon metabolism enzymes and sucrose content in the leaves were greater than those in the roots, while the fructose and glucose contents were on the contrary, indicating that bermudagrass transported fructose and glucose obtained from sucrose decomposition from leaves to roots under drought to reduce roots damage. The path analysis indicated that leaves neutral invertase activity, and roots soluble sugar content might be the key parameter of carbon metabolism in bermudagrass under drought.https://pse.agriculturejournals.cz/artkey/pse-202306-0002_effects-of-drought-stress-on-carbon-metabolism-of-bermudagrass-cynodon-dactylon-l.phpabiotic stressdifferences in drought resistancesucrose metabolismnonstructural carbohydrate contentirrigation |
| spellingShingle | Yilong Zhang Yuxuan Bao Peiying Li Qikun Yu Wen Li Lisi Tang Xiaofan Sun Zongjiu Sun Shuo Li Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.) Plant, Soil and Environment abiotic stress differences in drought resistance sucrose metabolism nonstructural carbohydrate content irrigation |
| title | Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.) |
| title_full | Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.) |
| title_fullStr | Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.) |
| title_full_unstemmed | Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.) |
| title_short | Effects of drought stress on carbon metabolism of bermudagrass (Cynodon dactylon L.) |
| title_sort | effects of drought stress on carbon metabolism of bermudagrass cynodon dactylon l |
| topic | abiotic stress differences in drought resistance sucrose metabolism nonstructural carbohydrate content irrigation |
| url | https://pse.agriculturejournals.cz/artkey/pse-202306-0002_effects-of-drought-stress-on-carbon-metabolism-of-bermudagrass-cynodon-dactylon-l.php |
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