Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress
High temperature stress (HT) is efficient in breaking endo-dormancy of perennial trees. The effects of HT (50°C) on the respiration of dormant nectarine (Prunus persica var. nectariana cv. Shuguang) vegetative buds were evaluated in the research. We found that bud respiration was transiently inhibit...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2013-01-01
|
| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311913602075 |
| _version_ | 1818642412919062528 |
|---|---|
| author | Yue TAN Ling LI Chuan-yuan LENG Dong-mei LI Xiu-de CHEN Dong-sheng GAO |
| author_facet | Yue TAN Ling LI Chuan-yuan LENG Dong-mei LI Xiu-de CHEN Dong-sheng GAO |
| author_sort | Yue TAN |
| collection | DOAJ |
| description | High temperature stress (HT) is efficient in breaking endo-dormancy of perennial trees. The effects of HT (50°C) on the respiration of dormant nectarine (Prunus persica var. nectariana cv. Shuguang) vegetative buds were evaluated in the research. We found that bud respiration was transiently inhibited by HT and the pentose phosphate pathway (PPP) and the cytochrome C pathway (CYT) were significantly affected. On the substrate level, PPP was activated in the HT-treated buds compared with the control group. However, the activation did mot occur until hours after HT treatment. The tricarboxylic acid cycle (TCA) in both the HT-treated buds and in the control group proceeded at a low level most of the time compared with total respiration. On the electron transfer level, CYT was transiently inhibited by HT but became significantly active in the later stage. CYT operation in the control group exhibited an attenuation process. The alternative pathway (ALT) fluctuated both in the HT-treated samples and in the control. The results suggest that the temporary CYT inhibition and the following PPP activation may be involved in HT-induced bud dormancy release and budburst mechanisms. |
| first_indexed | 2024-12-16T23:42:39Z |
| format | Article |
| id | doaj.art-d8e50b02be124828ac9ab749f4974149 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-16T23:42:39Z |
| publishDate | 2013-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-d8e50b02be124828ac9ab749f49741492022-12-21T22:11:34ZengElsevierJournal of Integrative Agriculture2095-31192013-01-011218086Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature StressYue TAN0Ling LI1Chuan-yuan LENG2Dong-mei LI3Xiu-de CHEN4Dong-sheng GAO5TAN Yue, Tel: +86-538-8246116; National Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, P.R. ChinaLI Ling, Tel: +86-538-8246116; National Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, P.R. ChinaNational Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, P.R. ChinaNational Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, P.R. ChinaNational Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, P.R. ChinaCorrespondence GAO Dong-sheng, Tel: +86-538-8249659, Fax: +86-538-8242364; National Research Center for Apple Engineering and Technology/State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, P.R. ChinaHigh temperature stress (HT) is efficient in breaking endo-dormancy of perennial trees. The effects of HT (50°C) on the respiration of dormant nectarine (Prunus persica var. nectariana cv. Shuguang) vegetative buds were evaluated in the research. We found that bud respiration was transiently inhibited by HT and the pentose phosphate pathway (PPP) and the cytochrome C pathway (CYT) were significantly affected. On the substrate level, PPP was activated in the HT-treated buds compared with the control group. However, the activation did mot occur until hours after HT treatment. The tricarboxylic acid cycle (TCA) in both the HT-treated buds and in the control group proceeded at a low level most of the time compared with total respiration. On the electron transfer level, CYT was transiently inhibited by HT but became significantly active in the later stage. CYT operation in the control group exhibited an attenuation process. The alternative pathway (ALT) fluctuated both in the HT-treated samples and in the control. The results suggest that the temporary CYT inhibition and the following PPP activation may be involved in HT-induced bud dormancy release and budburst mechanisms.http://www.sciencedirect.com/science/article/pii/S2095311913602075high temperature stressdormancy releaserespirationnectarinevegetative buds |
| spellingShingle | Yue TAN Ling LI Chuan-yuan LENG Dong-mei LI Xiu-de CHEN Dong-sheng GAO Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress Journal of Integrative Agriculture high temperature stress dormancy release respiration nectarine vegetative buds |
| title | Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress |
| title_full | Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress |
| title_fullStr | Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress |
| title_full_unstemmed | Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress |
| title_short | Respiratory Response of Dormant Nectarine Vegetative Buds to High Temperature Stress |
| title_sort | respiratory response of dormant nectarine vegetative buds to high temperature stress |
| topic | high temperature stress dormancy release respiration nectarine vegetative buds |
| url | http://www.sciencedirect.com/science/article/pii/S2095311913602075 |
| work_keys_str_mv | AT yuetan respiratoryresponseofdormantnectarinevegetativebudstohightemperaturestress AT lingli respiratoryresponseofdormantnectarinevegetativebudstohightemperaturestress AT chuanyuanleng respiratoryresponseofdormantnectarinevegetativebudstohightemperaturestress AT dongmeili respiratoryresponseofdormantnectarinevegetativebudstohightemperaturestress AT xiudechen respiratoryresponseofdormantnectarinevegetativebudstohightemperaturestress AT dongshenggao respiratoryresponseofdormantnectarinevegetativebudstohightemperaturestress |