Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο:
https://hdl.handle.net/20.500.14279/3276
Πεδίο DC | Τιμή | Γλώσσα |
---|---|---|
dc.contributor.author | Fotopoulos, Vasileios | - |
dc.contributor.author | Kanellis, Angelos K. | - |
dc.date.accessioned | 2009-09-28T11:37:39Z | en |
dc.date.accessioned | 2013-05-17T08:35:03Z | - |
dc.date.accessioned | 2015-12-08T07:42:56Z | - |
dc.date.available | 2009-09-28T11:37:39Z | en |
dc.date.available | 2013-05-17T08:35:03Z | - |
dc.date.available | 2015-12-08T07:42:56Z | - |
dc.date.issued | 2009-05 | - |
dc.identifier.citation | Plant Abiotic Stress from signaling to development, 2nd meeting of the INPAS 14-17 May 2009 Tartu Estonia | en_US |
dc.identifier.uri | https://hdl.handle.net/20.500.14279/3276 | - |
dc.description.abstract | Ascorbate oxidase (AO) is an apoplastic enzyme that uses oxygen to catalyze the oxidation of ascorbate (AA) to dehydroascorbate (DHA) via the unstable radical monodehydroascorbate (MDHA). Here, we report that transgenic tobacco plants (Nicotiana tabacum L. cv. Xanthi) with an in vivo lowered apoplast AA redox state through increased AO expression demonstrate signs of delayed dark-induced senescence compared with wild-type plants, as shown by chlorophyll loss and lipid peroxidation assays. In situ localization of H2O2 suggests that although transgenic plants have higher constitutive levels of H2O2 under normal growth conditions, imposed dark-induced senescence results in smaller induction levels of H2O2, an observation which correlates with increased antioxidant enzyme activities and an induction in the expression of AA recycling genes compared with that in wild-type plants. Our current findings, combined with previous studies which showed the contribution of AO in the regulation of AA redox state, suggest that the reduction in AA redox state in the leaf apoplast of these transgenic plants results in an increase in the endogenous levels of H2O2, which provides a form of ‘acquired tolerance’ to oxidative stress imposed by dark-induced senescence. | en_US |
dc.format | en_US | |
dc.language.iso | en | en_US |
dc.title | Altered apoplastic ascorbate redox state in tobacco plants via ascorbate oxidase overexpression results in delayed dark-induced senescence in detached leaves | en_US |
dc.type | Article | en_US |
dc.link | http://ktisis.cut.ac.cy/bitstream/10488/918/6/INPAS%20Estonia%20Meeting%20Abstract%201.pdf | en_US |
dc.collaboration | Cyprus University of Technology | en_US |
dc.collaboration | Aristotle University of Thessaloniki | en_US |
dc.subject.category | Biological Sciences | en_US |
dc.country | Cyprus | en_US |
dc.country | Greece | en_US |
dc.subject.field | Natural Sciences | en_US |
dc.relation.conference | International Network Plant Abiotic Stress (INPAS) | en_US |
dc.dept.handle | 123456789/70 | en |
cut.common.academicyear | 2008-2009 | en_US |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
crisitem.author.dept | Department of Agricultural Sciences, Biotechnology and Food Science | - |
crisitem.author.faculty | Faculty of Geotechnical Sciences and Environmental Management | - |
crisitem.author.orcid | 0000-0003-1205-2070 | - |
crisitem.author.parentorg | Faculty of Geotechnical Sciences and Environmental Management | - |
Εμφανίζεται στις συλλογές: | Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation |
Αρχεία σε αυτό το τεκμήριο:
Αρχείο | Περιγραφή | Μέγεθος | Μορφότυπος | |
---|---|---|---|---|
INPAS Estonia Meeting Abstract 1.pdf | 224.95 kB | Adobe PDF | Δείτε/ Ανοίξτε |
CORE Recommender
Page view(s) 20
474
Last Week
0
0
Last month
2
2
checked on 4 Οκτ 2024
Download(s) 20
147
checked on 4 Οκτ 2024
Google ScholarTM
Check
Αυτό το τεκμήριο προστατεύεται από άδεια Άδεια Creative Commons