| Perioxidases play important roles in abscisic acid (ABA)-simulating photosystem II (PSII) thermostabilty of apple tree rootstock leaves | |
| Brestic, M.1,2; Shao, H. B.1,2,3; Ferus, P.1; Malbeck, J.4 | |
| Source Publication | AFRICAN JOURNAL OF BIOTECHNOLOGY
 |
| ISSN | 1684-5315 |
| 2011-11-14 | |
| Volume | 10Issue:71Pages:15891-15900 |
| Keyword | Photosystem Ii Thermostability Antioxidant Activity Phytohormones Heat Stress Oxidative Stress Apple Tree Rootstocks Global Climate Change |
| Contribution Rank | [Brestic, M.; Shao, H. B.; Ferus, P.] Slovak Univ Agr, Dept Plant Physiol, Nitra 294976, Slovakia; [Brestic, M.; Shao, H. B.] Chinese Acad Sci, Yantai Inst Costal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China; [Shao, H. B.] Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China; [Malbeck, J.] Acad Sci Czech Republic, Inst Experimetal Bot, CR-16502 Prague 6, Lysolaje, Czech Republic |
| Corresponding Author | Brestic, M (reprint author), Slovak Univ Agr, Dept Plant Physiol, Nitra 294976, Slovakia. marian.brestic@uniag.sk ; shaohongbochu@126.com |
| Department | 滨海湿地实验室 |
| Abstract | Leaf photosynthetic activity limited by summer heat stress represents large constraint to production process of fruit trees. To cope with this problem, we tested photosystem II (PS II) thermostability in clonal apple tree rootstocks with different growth intensity - semi-vigorous-MM106 and dwarfing-J-TE-F experiencing summer heat stress, and related antioxidative activity and phytohormonal balance. For this purpose, expanded leaves were collected and utilized for determination of 3-indoleacetic acid (IAA), cytokinins (CKs), abscisic acid (ABA) concentrations, and superoxide dismutase (SOD), total peroxidases (POX), catalase (CAT), total antioxidative activity (TAA) and PS II thermostability before and after 30 min dark exposition to temperature of 42 degrees C (because of relatively-stable PS II). Leaves from dwarfing-J-TE-F showed higher PS II thermostability than that from semi-vigorous-MM106 as indicated by higher maximal quantum yield of primary photochemistry (Phi(Po)), excitation transfer efficiency to electron transport chain (psi(o)), electron transport yield (Phi(Eo)) and lower thermal dissipation yield (Phi(Do)). From antioxidant parameters, genotypic specifity can be seen in total peroxidases activity and only JTE-F leaves predominated. Despite higher CKs concentration in leaves of MM106, active CKs did not show any difference between two rootstocks. IAA also exhibited balanced level, but ABA concentration was four times higher in J-TE-F leaves than MM106 ones. We can conclude that in PS II heat-hardening of apple tree rootstock leaves, which is at least partly provided by enhanced peroxidases activity, ABA plays the central role and J-TE-F rootstock can be recomended to heat stress in the prone regions.; Leaf photosynthetic activity limited by summer heat stress represents large constraint to production process of fruit trees. To cope with this problem, we tested photosystem II (PS II) thermostability in clonal apple tree rootstocks with different growth intensity - semi-vigorous-MM106 and dwarfing-J-TE-F experiencing summer heat stress, and related antioxidative activity and phytohormonal balance. For this purpose, expanded leaves were collected and utilized for determination of 3-indoleacetic acid (IAA), cytokinins (CKs), abscisic acid (ABA) concentrations, and superoxide dismutase (SOD), total peroxidases (POX), catalase (CAT), total antioxidative activity (TAA) and PS II thermostability before and after 30 min dark exposition to temperature of 42 degrees C (because of relatively-stable PS II). Leaves from dwarfing-J-TE-F showed higher PS II thermostability than that from semi-vigorous-MM106 as indicated by higher maximal quantum yield of primary photochemistry (Phi(Po)), excitation transfer efficiency to electron transport chain (psi(o)), electron transport yield (Phi(Eo)) and lower thermal dissipation yield (Phi(Do)). From antioxidant parameters, genotypic specifity can be seen in total peroxidases activity and only JTE-F leaves predominated. Despite higher CKs concentration in leaves of MM106, active CKs did not show any difference between two rootstocks. IAA also exhibited balanced level, but ABA concentration was four times higher in J-TE-F leaves than MM106 ones. We can conclude that in PS II heat-hardening of apple tree rootstock leaves, which is at least partly provided by enhanced peroxidases activity, ABA plays the central role and J-TE-F rootstock can be recomended to heat stress in the prone regions. |
| Funding Organization | Project of Slovak China Research and Development Cooperation[SK-CN-0022-09]; Chinese Academy of Sciences (CAS)[2009Y2B211, XDA01020304]; CAS/SAFEA; National Natural Science Foundation of China[41171216]; Yantai Double-hundred Talent Plan[XY-003-02] |
| Subtype | Article |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ABIOTIC-STRESS ; HEAT TOLERANCE ; ANTIOXIDANT ACTIVITY ; HIGH-TEMPERATURE ; WHEAT GENOTYPES ; LEAF SENESCENCE ; FRUIT-QUALITY ; HIGHER-PLANTS ; GC-MS ; DROUGHT |
| WOS Research Area | Biotechnology & Applied Microbiology |
| WOS ID | WOS:000299739400009 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.yic.ac.cn/handle/133337/5320 |
| Collection | 中科院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| Affiliation | 1.Slovak Univ Agr, Dept Plant Physiol, Nitra 294976, Slovakia 2.Chinese Acad Sci, Yantai Inst Costal Zone Res, CAS Shandong Prov Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 3.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China 4.Acad Sci Czech Republic, Inst Experimetal Bot, CR-16502 Prague 6, Lysolaje, Czech Republic |
| Recommended Citation GB/T 7714 | Brestic, M.,Shao, H. B.,Ferus, P.,et al. Perioxidases play important roles in abscisic acid (ABA)-simulating photosystem II (PSII) thermostabilty of apple tree rootstock leaves[J]. AFRICAN JOURNAL OF BIOTECHNOLOGY,2011,10(71):15891-15900. |
| APA | Brestic, M.,Shao, H. B.,Ferus, P.,&Malbeck, J..(2011).Perioxidases play important roles in abscisic acid (ABA)-simulating photosystem II (PSII) thermostabilty of apple tree rootstock leaves.AFRICAN JOURNAL OF BIOTECHNOLOGY,10(71),15891-15900. |
| MLA | Brestic, M.,et al."Perioxidases play important roles in abscisic acid (ABA)-simulating photosystem II (PSII) thermostabilty of apple tree rootstock leaves".AFRICAN JOURNAL OF BIOTECHNOLOGY 10.71(2011):15891-15900. |
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