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- W1992061770 abstract "Summary Plant ferredoxin‐like protein ( PFLP ) is a photosynthesis‐type ferredoxin ( Fd ) found in sweet pepper. It contains an iron–sulphur cluster that receives and delivers electrons between enzymes involved in many fundamental metabolic processes. It has been demonstrated that transgenic plants overexpressing PFLP show a high resistance to many bacterial pathogens, although the mechanism remains unclear. In this investigation, the PFLP gene was transferred into Arabidopsis and its defective derivatives, such as npr1 ( nonexpresser of pathogenesis‐related gene 1 ) and eds1 ( enhanced disease susceptibility 1 ) mutants and NAHG ‐transgenic plants. These transgenic plants were then infected with the soft‐rot bacterial pathogen P ectobacterium carotovorum subsp. carotovorum ( E rwinia carotovora ssp. carotovora , ECC ) to investigate the mechanism behind PFLP ‐mediated resistance. The results revealed that, instead of showing soft‐rot symptoms, ECC activated hypersensitive response ( HR )‐associated events, such as the accumulation of hydrogen peroxide ( H 2 O 2 ), electrical conductivity leakage and expression of the HR marker genes ( ATHSR2 and ATHSR3 ) in PFLP ‐transgenic Arabidopsis. This PFLP ‐mediated resistance could be abolished by inhibitors, such as diphenylene iodonium ( DPI ), 1‐ l ‐ trans ‐epoxysuccinyl‐leucylamido‐(4‐guanidino)‐butane ( E 64) and benzyloxycarbonyl‐Val‐Ala‐Asp‐fluoromethylketone (z‐ VAD ‐fmk), but not by myriocin and fumonisin. The PFLP ‐transgenic plants were resistant to ECC , but not to its harpin mutant strain ECCAC 5082. In the npr1 mutant and NAHG ‐transgenic Arabidopsis, but not in the eds1 mutant, overexpression of the PFLP gene increased resistance to ECC . Based on these results, we suggest that transgenic Arabidopsis contains high levels of ectopic PFLP ; this may lead to the recognition of the harpin and to the activation of the HR and other resistance mechanisms, and is dependent on the protease‐mediated pathway." @default.
- W1992061770 created "2016-06-24" @default.
- W1992061770 creator A5005780616 @default.
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- W1992061770 creator A5016361813 @default.
- W1992061770 creator A5025617414 @default.
- W1992061770 creator A5046881768 @default.
- W1992061770 date "2014-06-30" @default.
- W1992061770 modified "2023-09-26" @default.
- W1992061770 title "Ectopically expressed sweet pepper ferredoxin<scp>PFLP</scp>enhances disease resistance to<i><scp>P</scp>ectobacterium carotovorum</i>subsp.<i>carotovorum</i>affected by harpin and protease‐mediated hypersensitive response in<scp>A</scp>rabidopsis" @default.
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