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| Effect of Photoperiod on Key Enzyme Activities of Respiration in Nectarine Buds During Dormancy Induction |
| State Key Laboratory of Crop Biology/College of Horticulture Science and Engineering/Research Center for Apple Engineering and Technology, Shandong Agricultural University |
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摘要 Shuguang (Prunus persica var. nectariana cv. Shuguang) nectarine was used to study effects of photoperiod on keyenzymeactivities of respiration during dormancy induction. The dormancy status was determined with sprouting ability.Spectrophotometry was used to investigate activities of phosphohexose isomerase (PGI), malic dehydrogenase (MDH),and glucose-6-phosphate dehydrogenase (G6PDH). The results revealed that short day (SD) treatment promoted dormancyinduction while long day (LD) treatment postponed the process. During dormancy induction, PGI activities declined,MDH activities changed little, and G6PDH activities increased both in flower buds and leaf buds. PGI activities and MDHactivities in SD treatment were lower than control, and G6PDH activities were higher, which was opposite with LDtreatment. The changes of respiratory key-enzyme activities were adjusted by photoperiod and correlated with thedevelopment of dormancy induction.
Abstract Shuguang (Prunus persica var. nectariana cv. Shuguang) nectarine was used to study effects of photoperiod on keyenzymeactivities of respiration during dormancy induction. The dormancy status was determined with sprouting ability.Spectrophotometry was used to investigate activities of phosphohexose isomerase (PGI), malic dehydrogenase (MDH),and glucose-6-phosphate dehydrogenase (G6PDH). The results revealed that short day (SD) treatment promoted dormancyinduction while long day (LD) treatment postponed the process. During dormancy induction, PGI activities declined,MDH activities changed little, and G6PDH activities increased both in flower buds and leaf buds. PGI activities and MDHactivities in SD treatment were lower than control, and G6PDH activities were higher, which was opposite with LDtreatment. The changes of respiratory key-enzyme activities were adjusted by photoperiod and correlated with thedevelopment of dormancy induction.
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Received: 29 June 2010
Accepted:
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Corresponding Authors:
Correspondence ZHANG Hai-sen, Ph D, Tel: +86-538-8242657, E-mail: hhss2002@sdau.edu.cn; GAO Dong-sheng, Professor, Tel: +86-538-8249659, E-mail: dsgao@sdau.edu.cn
E-mail: dmli2002@163.com
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| About author: LI Dong-mei, Ph D, Tel: +86-538-8246263, E-mail: dmli2002@163.com |
Cite this article:
LI Dong-mei, LI Ling, TAN Yue, CHEN Xiu-de, ZHANG Hai-sen, GAO Dong-sheng , LI Jin.
2011.
Effect of Photoperiod on Key Enzyme Activities of Respiration in Nectarine Buds During Dormancy Induction. Journal of Integrative Agriculture, 10(7): 1026-1031.
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