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_aMSU _bEnglish _cMSU _erda |
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| 050 | 0 | 0 | _aQK711.2 JOU |
| 100 | 1 |
_aMaschietto, Valentina _eauthor |
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| 245 | 1 | 0 |
_aConstitutive expression of pathogenesis-related proteins and antioxydant enzyme activities triggers maize resistance towards Fusarium verticillioides _ccreated by Valentina Maschietto, Alessandra Lanubile, Silvana De Leonardis, Adriano Marocco and Costantino Paciolla |
| 264 | 1 |
_aAmsterdam: _bElsevier GmbH, _c2016. |
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| 336 |
_2rdacontent _atext _btxt |
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| 337 |
_2rdamedia _aunmediated _bn |
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| 338 |
_2rdacarrier _avolume _bnc |
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| 440 |
_aJournal of plant physiology _vVolume 200 |
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| 520 | 3 | _aFusarium verticillioides is a fungal pathogen of maize that causes ear rot and contaminates the grains with fumonisin mycotoxins. Breeding for resistance to Fusarium emerged as the most economic and environmentally safe strategy; therefore the discovery of resistant sources and effective molecular markers are a priority. Ears of resistant (CO441 and CO433) and susceptible (CO354 and CO389) maize lines were inoculated with F. verticillioides and the expression of pathogenesis-related (PR) genes (PR1, PR5, PRm3, PRm6) and genes that protect from oxidative stress (peroxidase, catalase, superoxide dismutase and ascorbate peroxidase) were evaluated in the kernels at 72h post inoculation. In addition, the oxidation level and the enzymatic activity of ascorbate-glutathione cycle, catalase, superoxide dismutase and cytosolic and wall peroxidases were investigated. The uninoculated kernels of the resistant lines showed higher gene expression and enzymatic activities, highlighting the key role of constitutive resistance in limiting pathogen attack. In contrast, the susceptible lines activated defensive genes only after pathogen inoculation, resulting in increased levels of H2O2 and lipid peroxidation, as well as lower enzymatic activities. The constitutive defenses observed in this study from seed could be profitably exploited to develop markers to speed up conventional breeding programs in the selection of resistant genotypes. | |
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_aDefense systems _vFusarium verticillioides _xOxidative stress |
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| 700 | 1 |
_aLanubile, Alessandra _eco-author |
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| 700 | 1 |
_aDe Leonardis, Silvana _eco-author |
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| 700 | 1 |
_aMarocco, Adriano _eco-author |
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| 700 | 1 |
_aPaciolla, Costantino _eco-author |
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| 856 | _uhttps://doi.org/10.1016/j.jplph.2016.06.006 | ||
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_2lcc _cJA |
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_c168947 _d168947 |
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