ABA-induced active stomatal closure in bulb scales of Lanzhou lily
Abscisic acid (ABA) mediated stomatal closure is a highly effective mode of active stomatal regulation under drought stress. Previous studies on stomatal regulation have primarily focused on the leaves of vascular plants, while research on the stomatal behavior of bulbous plants remains unknown. In...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Plant Signaling & Behavior |
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| Online Access: | http://dx.doi.org/10.1080/15592324.2024.2446865 |
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| author | Lei Gong Hai-Qing Liu Ye Hua Ya-Yun Zhang Md. Mahadi Hasan |
| author_facet | Lei Gong Hai-Qing Liu Ye Hua Ya-Yun Zhang Md. Mahadi Hasan |
| author_sort | Lei Gong |
| collection | DOAJ |
| description | Abscisic acid (ABA) mediated stomatal closure is a highly effective mode of active stomatal regulation under drought stress. Previous studies on stomatal regulation have primarily focused on the leaves of vascular plants, while research on the stomatal behavior of bulbous plants remains unknown. In addition, ABA-induced stomatal regulation in bulbs has yet to be explored. Therefore, we aim to investigate the ABA-induced active regulation in the bulb of the Lanzhou lily (Lilium davidii var. unicolor). The morphological characteristics of epidermal strips were analyzed along with a stomatal aperture assay to investigate the bulb's stomatal response to ABA. Moreover, the mechanism of ABA signaling was explored using treatments with ABA signaling chemicals and corresponding scavengers. This study revealed that stomata are mainly distributed on the upper part and outer surface of the bulb. The guard cells of the lily bulb are inflated, and the stomata have a nearly circular shape with relatively low stomatal density. Exogenous ABA was found to induce varying degrees of stomatal closure in a dose-dependent manner, with significant stomatal aperture reduction observed after treatment with 10 µM ABA. Overall, the study indicated that both hydrogen peroxide (H2O2) and nitric oxide (NO) are involved in the ABA-induced stomatal closure process, with H2O2 functioning as an upstream component of NO. |
| format | Article |
| id | doaj-art-c70f3d9c9d9040fcb79cb32f960c4134 |
| institution | Kabale University |
| issn | 1559-2316 1559-2324 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Signaling & Behavior |
| spelling | doaj-art-c70f3d9c9d9040fcb79cb32f960c41342025-01-20T14:37:59ZengTaylor & Francis GroupPlant Signaling & Behavior1559-23161559-23242025-12-0120110.1080/15592324.2024.24468652446865ABA-induced active stomatal closure in bulb scales of Lanzhou lilyLei Gong0Hai-Qing Liu1Ye Hua2Ya-Yun Zhang3Md. Mahadi Hasan4Longdong UniversityLongdong UniversityLongdong UniversityLongdong UniversityLanzhou UniversityAbscisic acid (ABA) mediated stomatal closure is a highly effective mode of active stomatal regulation under drought stress. Previous studies on stomatal regulation have primarily focused on the leaves of vascular plants, while research on the stomatal behavior of bulbous plants remains unknown. In addition, ABA-induced stomatal regulation in bulbs has yet to be explored. Therefore, we aim to investigate the ABA-induced active regulation in the bulb of the Lanzhou lily (Lilium davidii var. unicolor). The morphological characteristics of epidermal strips were analyzed along with a stomatal aperture assay to investigate the bulb's stomatal response to ABA. Moreover, the mechanism of ABA signaling was explored using treatments with ABA signaling chemicals and corresponding scavengers. This study revealed that stomata are mainly distributed on the upper part and outer surface of the bulb. The guard cells of the lily bulb are inflated, and the stomata have a nearly circular shape with relatively low stomatal density. Exogenous ABA was found to induce varying degrees of stomatal closure in a dose-dependent manner, with significant stomatal aperture reduction observed after treatment with 10 µM ABA. Overall, the study indicated that both hydrogen peroxide (H2O2) and nitric oxide (NO) are involved in the ABA-induced stomatal closure process, with H2O2 functioning as an upstream component of NO.http://dx.doi.org/10.1080/15592324.2024.2446865hydrogen peroxidenitric oxidestomata aperturewater losssignaling |
| spellingShingle | Lei Gong Hai-Qing Liu Ye Hua Ya-Yun Zhang Md. Mahadi Hasan ABA-induced active stomatal closure in bulb scales of Lanzhou lily Plant Signaling & Behavior hydrogen peroxide nitric oxide stomata aperture water loss signaling |
| title | ABA-induced active stomatal closure in bulb scales of Lanzhou lily |
| title_full | ABA-induced active stomatal closure in bulb scales of Lanzhou lily |
| title_fullStr | ABA-induced active stomatal closure in bulb scales of Lanzhou lily |
| title_full_unstemmed | ABA-induced active stomatal closure in bulb scales of Lanzhou lily |
| title_short | ABA-induced active stomatal closure in bulb scales of Lanzhou lily |
| title_sort | aba induced active stomatal closure in bulb scales of lanzhou lily |
| topic | hydrogen peroxide nitric oxide stomata aperture water loss signaling |
| url | http://dx.doi.org/10.1080/15592324.2024.2446865 |
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