Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stress
[Objective] The effects of abscisic acid (ABA) on the growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under severe salt stress were studied. We aim to screen the appropriate ABA concentration to enhance salt tolerance of I. lactea, and to provide a basis for the...
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| Format: | Article |
| Language: | zho |
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Science Press
2025-01-01
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| Series: | Xibei zhiwu xuebao |
| Subjects: | |
| Online Access: | http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240504?st=article_issue |
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| _version_ | 1823858155636916224 |
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| author | TIAN Xiaoxia MAO Peichun ZHENG Mingli YU Ting MENG Lin |
| author_facet | TIAN Xiaoxia MAO Peichun ZHENG Mingli YU Ting MENG Lin |
| author_sort | TIAN Xiaoxia |
| collection | DOAJ |
| description | [Objective] The effects of abscisic acid (ABA) on the growth, leaf stomatal characteristics, and
photosynthesis of Iris lactea seedlings under severe salt stress were studied. We aim to screen the appropriate
ABA concentration to enhance salt tolerance of I. lactea, and to provide a basis for the cultivation
of I. lactea that is tolerant to severe saline stress. [Methods] Using ‘ML04’ and ‘ML35’ I. lactea seedlings
as materials, the biomass, stomatal density, photosynthesis rate, and other indices under NaCl
stress after ABA spraying were analyzed. [Results] Under NaCl stress, both I. lactea seedlings showed
salt damage symptom, and the leaf damage of ‘ML35’ was more severe than ‘ML04’. Spraying of ABA
increased salt tolerance of the two I. lactea seedlings, and ‘ML04’ was increased more than ‘ML35’.
ABA increased the plant height and biomass by adjusting the stomatal morphology and spatial distribution
pattern to optimize the gas exchange process, reducing the decrease of chlorophyll content, and enhancing
its photosynthesis, etc. [Conclusion] The damage of ‘ML35’ was more severe than ‘ML04’ under salt
stress. Spraying ABA could alleviate the growth of I. lactea seedlings under salt stress, and 2.5 μmol/L
ABA had the best effect. |
| format | Article |
| id | doaj-art-dfad694a4e234297b868f9001e8024f2 |
| institution | Kabale University |
| issn | 1000-4025 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Science Press |
| record_format | Article |
| series | Xibei zhiwu xuebao |
| spelling | doaj-art-dfad694a4e234297b868f9001e8024f22025-02-11T14:15:12ZzhoScience PressXibei zhiwu xuebao1000-40252025-01-014510045005310.7606/j.issn.1000-4025.20240504Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stressTIAN Xiaoxia0MAO Peichun1ZHENG Mingli2YU Ting3MENG Lin4Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097Institute of Grassland, Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097[Objective] The effects of abscisic acid (ABA) on the growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under severe salt stress were studied. We aim to screen the appropriate ABA concentration to enhance salt tolerance of I. lactea, and to provide a basis for the cultivation of I. lactea that is tolerant to severe saline stress. [Methods] Using ‘ML04’ and ‘ML35’ I. lactea seedlings as materials, the biomass, stomatal density, photosynthesis rate, and other indices under NaCl stress after ABA spraying were analyzed. [Results] Under NaCl stress, both I. lactea seedlings showed salt damage symptom, and the leaf damage of ‘ML35’ was more severe than ‘ML04’. Spraying of ABA increased salt tolerance of the two I. lactea seedlings, and ‘ML04’ was increased more than ‘ML35’. ABA increased the plant height and biomass by adjusting the stomatal morphology and spatial distribution pattern to optimize the gas exchange process, reducing the decrease of chlorophyll content, and enhancing its photosynthesis, etc. [Conclusion] The damage of ‘ML35’ was more severe than ‘ML04’ under salt stress. Spraying ABA could alleviate the growth of I. lactea seedlings under salt stress, and 2.5 μmol/L ABA had the best effect.http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240504?st=article_issueiris lacteaabscisic acidsalt stressstomatal characteristicsphotosynthesis |
| spellingShingle | TIAN Xiaoxia MAO Peichun ZHENG Mingli YU Ting MENG Lin Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stress Xibei zhiwu xuebao iris lactea abscisic acid salt stress stomatal characteristics photosynthesis |
| title | Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stress |
| title_full | Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stress |
| title_fullStr | Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stress |
| title_full_unstemmed | Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stress |
| title_short | Effects of ABA on growth, leaf stomatal characteristics, and photosynthesis of Iris lactea seedlings under NaCl stress |
| title_sort | effects of aba on growth leaf stomatal characteristics and photosynthesis of iris lactea seedlings under nacl stress |
| topic | iris lactea abscisic acid salt stress stomatal characteristics photosynthesis |
| url | http://xbzwxb.alljournal.net/xbzwxb/article/abstract/20240504?st=article_issue |
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