Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen
IntroductionDalbergia odorifera T. Chen, known as fragrant rosewood, is a rare and endangered tree species. Studies have shown that plant growth regulators can effectively promote heartwood formation. This study aimed to investigate the effects of ethephon (ETH) on heartwood formation and the influe...
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1281877/full |
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| author | Yuan-Jing Zhu Yuan-Jing Zhu Jia-Wen Li Hui Meng Wen-Jie He Wen-Jie He Yun Yang Jian-He Wei Jian-He Wei |
| author_facet | Yuan-Jing Zhu Yuan-Jing Zhu Jia-Wen Li Hui Meng Wen-Jie He Wen-Jie He Yun Yang Jian-He Wei Jian-He Wei |
| author_sort | Yuan-Jing Zhu |
| collection | DOAJ |
| description | IntroductionDalbergia odorifera T. Chen, known as fragrant rosewood, is a rare and endangered tree species. Studies have shown that plant growth regulators can effectively promote heartwood formation. This study aimed to investigate the effects of ethephon (ETH) on heartwood formation and the influence of ethephon and hydrogen peroxide (H2O2) on the physiological characteristics in D. odorifera.MethodsD. odorifera branches underwent treatment with 2.5% plant growth regulators, including ETH, jasmonic acid (JA), salicylic acid (SA), abscisic acid (ABA), H2O2, and inhibitors such as ascorbic acid (AsA) to inhibit H2O2 synthesis, and (S) -trans 2-amino-4 - (2-aminoethoxy) -3-butene (AVG) to inhibit ethylene synthesis. After a 14-day period, we conducted an analysis to evaluate the impact of these plant growth regulators on elongation distance, vessel occlusion percentage, and trans-nerol content. Additionally, the effects of ETH and H2O2 on endogenous plant hormones, H2O2 content, soluble protein content, and enzyme activity were investigated within 0-48 h of treatment.ResultsAfter treatment with ETH for 14 days, the extension distance of the heartwood material was 15 cm, while the trans-nerolol content was 15 times that of the ABA group. ETH and H2O2 promoted endogenous ethylene synthesis; Ethylene content peaked at 6 and 18 h. The peak ethylene content in the ETH group was 68.07%, 12.89%, and 20.87% higher than the initial value of the H2O2 group and ddH2O group, respectively, and 29.64% higher than that in the AVG group. The soluble protein content and activity of related enzymes were significantly increased following ETH treatment.DiscussionETH exhibited the most impact on heartwood formation while not hindering tree growth. This treatment effectively triggered the production of endogenous ethylene in plants and enhanced the activity of essential enzymes involved in heartwood formation. These findings serve as a valuable reference for future investigations into heartwood formation. |
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| language | English |
| last_indexed | 2024-03-08T11:43:21Z |
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| spelling | doaj.art-3fbcdc4e88ad4996b4656f594e1715d42024-01-25T04:40:36ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2024-01-011410.3389/fpls.2023.12818771281877Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. ChenYuan-Jing Zhu0Yuan-Jing Zhu1Jia-Wen Li2Hui Meng3Wen-Jie He4Wen-Jie He5Yun Yang6Jian-He Wei7Jian-He Wei8Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaHainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, ChinaHainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, ChinaHainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, ChinaInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaHainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, ChinaHainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, ChinaInstitute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaHainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Key Laboratory of State Administration of Traditional Chinese Medicine for Agarwood Sustainable Utilization, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, ChinaIntroductionDalbergia odorifera T. Chen, known as fragrant rosewood, is a rare and endangered tree species. Studies have shown that plant growth regulators can effectively promote heartwood formation. This study aimed to investigate the effects of ethephon (ETH) on heartwood formation and the influence of ethephon and hydrogen peroxide (H2O2) on the physiological characteristics in D. odorifera.MethodsD. odorifera branches underwent treatment with 2.5% plant growth regulators, including ETH, jasmonic acid (JA), salicylic acid (SA), abscisic acid (ABA), H2O2, and inhibitors such as ascorbic acid (AsA) to inhibit H2O2 synthesis, and (S) -trans 2-amino-4 - (2-aminoethoxy) -3-butene (AVG) to inhibit ethylene synthesis. After a 14-day period, we conducted an analysis to evaluate the impact of these plant growth regulators on elongation distance, vessel occlusion percentage, and trans-nerol content. Additionally, the effects of ETH and H2O2 on endogenous plant hormones, H2O2 content, soluble protein content, and enzyme activity were investigated within 0-48 h of treatment.ResultsAfter treatment with ETH for 14 days, the extension distance of the heartwood material was 15 cm, while the trans-nerolol content was 15 times that of the ABA group. ETH and H2O2 promoted endogenous ethylene synthesis; Ethylene content peaked at 6 and 18 h. The peak ethylene content in the ETH group was 68.07%, 12.89%, and 20.87% higher than the initial value of the H2O2 group and ddH2O group, respectively, and 29.64% higher than that in the AVG group. The soluble protein content and activity of related enzymes were significantly increased following ETH treatment.DiscussionETH exhibited the most impact on heartwood formation while not hindering tree growth. This treatment effectively triggered the production of endogenous ethylene in plants and enhanced the activity of essential enzymes involved in heartwood formation. These findings serve as a valuable reference for future investigations into heartwood formation.https://www.frontiersin.org/articles/10.3389/fpls.2023.1281877/fullDalbergia odorifera T. Chenheartwoodphytohormoneethylenetree physiology |
| spellingShingle | Yuan-Jing Zhu Yuan-Jing Zhu Jia-Wen Li Hui Meng Wen-Jie He Wen-Jie He Yun Yang Jian-He Wei Jian-He Wei Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen Frontiers in Plant Science Dalbergia odorifera T. Chen heartwood phytohormone ethylene tree physiology |
| title | Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen |
| title_full | Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen |
| title_fullStr | Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen |
| title_full_unstemmed | Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen |
| title_short | Effects of ethephon on heartwood formation and related physiological indices of Dalbergia odorifera T. Chen |
| title_sort | effects of ethephon on heartwood formation and related physiological indices of dalbergia odorifera t chen |
| topic | Dalbergia odorifera T. Chen heartwood phytohormone ethylene tree physiology |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1281877/full |
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