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| Content Provider | Springer Nature Link |
|---|---|
| Author | Li, Xue Ping Xu, Qing Qing Liao, Wei Biao Ma, Zhan Jun Xu, Xiao Ting Wang, Meng Ren, Peng Ju Niu, Li Juan Jin, Xin Zhu, Yong Chao |
| Copyright Year | 2016 |
| Abstract | Abscisic acid (ABA) and hydrogen peroxide (H$_{2}$O$_{2}$) are important regulatory factors involved in plant development under adversity stress. Here, the involvement of H$_{2}$O$_{2}$ in ABA-induced adventitious root formation in cucumber (Cucumis sativus L.) under drought stress was determined. The results indicated that exogenous ABA or H$_{2}$O$_{2}$ promoted adventitious rooting under drought stress, with a maximal biological response at 0.5 μM ABA or 800 μM H$_{2}$O$_{2}$. The promotive effects of ABA-induced adventitious rooting under drought stress were suppressed by CAT or DPI, suggesting that endogenous H$_{2}$O$_{2}$ might be involved in ABA-induced adventitious rooting. ABA increased relative water content (RWC), leaf chlorophyll content, chlorophyll fluorescence parameters (Fv/Fm, ΦPS II and qP), water soluble carbohydrate (WSC) and soluble protein content, and peroxidase (POD), polyphenol oxidase (PPO) and indoleacetate oxidase (IAAO) activities, while decreasing transpiration rate. However, the effects of ABA were inhibited by H$_{2}$O$_{2}$ scavenger CAT. Therefore, H$_{2}$O$_{2}$ may be involved in ABA-induced adventitious root development under drought stress by stimulating water and chlorophyll content, chlorophyll fluorescence, carbohydrate and nitrogen content, as well as some enzyme activities. |
| Starting Page | 536 |
| Ending Page | 548 |
| Page Count | 13 |
| File Format | |
| ISSN | 12269239 |
| Journal | Journal of Plant Biology |
| Volume Number | 59 |
| Issue Number | 5 |
| e-ISSN | 18670725 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2016-10-13 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Adventitious root Abscisic acid (ABA) Chlorophyll fluorescence Drought stress Enzyme activity Hydrogen peroxide (H$_{2}$O$_{2}$) Plant Sciences Plant Breeding/Biotechnology Plant Genetics & Genomics Plant Systematics/Taxonomy/Biogeography Plant Ecology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
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